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404 - Not found

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AOP-Code Helper

1. Description

This "assistant" is a plug-in for Android Studio, which is equivalent to a small helper when you use this library. It only helps you generate some AOP code, and has no effect on your code.

The plug-in generates AOP auxiliary code for the target class, including the following functions:

  • @AndroidAopReplaceClass
  • @AndroidAopMatchClassMethod
  • @AndroidAopModifyExtendsClass
  • @AndroidAopCollectMethod

Although there is such a plug-in, you also need to understand how to use this library to identify and select the generated code, and don't copy it blindly~

2. Install the plug-in

  • Plugin Market, search for the plug-in AndroidAOP Code Viewer in Android Studio and install it

  • 👆The plug-in market needs to be reviewed and may not be the latest version

  • Click here to download the plugin, then search for how to install the local plugin

  • 👆Download link here to keep up with the latest features

  • After installation, a plug-in named AOPCode will be displayed on the right side of the IDE

3. Use

Right-click the mouse on the code you want to cut into -> Click AndroidAOP Code -> Click AOPCode on the right to view the generated code, as shown in the figure:

about

4. Special instructions

  • The generated @AndroidAopReplaceClass, @AndroidAopReplaceMethod and The class name and function signature in the @AndroidAopMatchClassMethod code are absolutely correct (Please correct me if you have any questions).
  • The generated @AndroidAopReplaceMethod Java method does not include the suspend function of the Kotlin source code
  • The generated @AndroidAopReplaceMethod method may have some deviations, so you need to compare it yourself. For example: nullable?, Is it the type of Kotlin source code, variable parameter type becomes array type, etc., these cannot be guaranteed to be accurately copied
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About obfuscation

Obfuscation rules

This resource library comes with obfuscation rules, and it will be automatically imported. Under normal circumstances, there is no need to import it manually.

About the mapping problem after obfuscation

Some friends will find that before obfuscation, the line number after the error can locate the error position, but after obfuscation, the original line number cannot be mapped out through the ProGuard tool, but it can be mapped out before using this library. That's right! Let's talk about the solution below.

    1. First, you need to confirm whether your class is a class that has been processed by AOP (you can check the cut point cutInfo.json), if yes, follow the next step to continue trying
    1. You just need to invalidate AndroidAOP and then generate an obfuscated package again, that is, generate a mapping file that does not contain AOP again. Configure it as follows under the application module
androidAopConfig {
+    //Set to false to disable AndroidAOP
+    enabled false
+}
+

Regarding the mapping file configuration, add the following configuration to the obfuscation configuration file

# Mapping file
+-printmapping proguard-map.txt
+# Keep the code line number when throwing an exception
+-keepattributes SourceFile,LineNumberTable
+
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@AndroidAopCollectMethod

Brief description

This aspect collects inherited classes or classes that match regular expressions. Its annotated methods will be automatically called back when you use the class for the first time

@AndroidAopCollectMethod(
+    /**
+     * Collection type
+     */
+    collectType = CollectType.DIRECT_EXTENDS,
+    /**
+     * This item is a regular expression
+     * After setting the regular expression, the parameter of the annotated method can be Object or Any. If it is not set, the type must be specified
+     * After setting the regular expression, the regular expression you set will be used to find the class name that meets the requirements
+     */
+    regex = ""
+)
+

Filling requirements for annotated methods

  • The modified method must be a static method, and the return value type is not set

  • It directly modifies the method, and the modified method has one and only one parameter. This function is to collect all classes in the application that inherit this parameter. If the parameter type is:

    • Object, only non-abstract classes and non-interface subclasses are collected; There must be a default no-parameter constructor, otherwise there will be an exception
    • Class, both interfaces and abstract classes will be collected; No restrictions on constructor parameters

  • In addition, each class collected by its annotated method will only be initialized and called back once through this static method.

    • The initialization time is when you use this class for the first time, that is, when the class is initialized.
    • It will not be initialized if not used, so it is "lazy loading" and thread-safe!
    • Pure static weaving method, without any reflection, better performance.

  • The last point is that this method should only contain relevant saving code, and do not perform other operations, and try to avoid abnormal behavior (because you only have one chance to receive...)

collectType defaults to DIRECT_EXTENDS, and the following three types can be set

  • EXTENDS means that it matches all classes inherited from annotation method parameters set

  • DIRECT_EXTENDS means that it matches directly inherited from annotation method parameters set

  • LEAF_EXTENDS means that it matches terminal inheritance (that is, no subclasses) annotation method parameters set

💡💡💡If the parameter is set to Object or Any, this setting will be ignored, but regex must be filled in

graph LR
+C[C class] ---> |C class inherits from B class| B{ B class };
+B --->|B class inherits from A class| A[ A class];
+B --->|DIRECT_EXTENDS / EXTENDS| A[ A class];
+C ---->|LEAF_EXTENDS / EXTENDS| A[ A class];

regex fill in Regular expression

After setting the regular expression, the class name that meets the requirements will be found according to the regular expression you set

  • After setting the regular expression, the parameter of the annotation method can be Object or Any, as shown in the example below

  • If you do not set the regular expression, you must specify the type

How to use

It is extremely simple to use, and the sample code has already explained it

  • Kotlin
object InitCollect {
+    private val collects = mutableListOf<SubApplication>()
+    private val collectClazz: MutableList<Class<out SubApplication>> = mutableListOf()
+
+    @AndroidAopCollectMethod
+    @JvmStatic
+//Collect classes inherited from SubApplication and call back its instance object
+    fun collect(sub: SubApplication) {
+        collects.add(sub)
+    }
+
+    @AndroidAopCollectMethod
+    @JvmStatic
+//Collect classes inherited from SubApplication and call back its class object
+    fun collect2(sub: Class<out SubApplication>) {
+        collectClazz.add(sub)
+    }
+
+    @AndroidAopCollectMethod(regex = ".*?\\$\\\$Router")
+    @JvmStatic
+//Collect classes that match the regex regular expression and call back their class objects. Can also be used in conjunction with inheritance
+    fun collectRouterClassRegex(sub: Class<out Any>) {
+        Log.e("InitCollect", "----collectRouterClassRegexClazz----$sub")
+    }
+
+    @AndroidAopCollectMethod(regex = ".*?\\$\\\$Router")
+    @JvmStatic
+//Collect classes that match the regex regular expression and call back their instance objects. Can also be used in combination with inheritance
+    fun collectRouterClassRegex(sub: Any) {
+        Log.e("InitCollect", "----collectRouterClassRegexObject----$sub")
+    }
+
+    //Directly call this method (method name is not limited) The above functions will be called back
+    fun init(application: Application) {
+        for (collect in collects) {
+            collect.onCreate(application)
+        }
+    }
+}
+
  • Java
public class InitCollect2 {
+    private static final List<SubApplication2> collects = new ArrayList<>();
+    private static final List<Class<? extends SubApplication2>> collectClazz = new ArrayList<>();
+
+    @AndroidAopCollectMethod
+    public static void collect(SubApplication2 sub) {
+        collects.add(sub);
+    }
+
+    @AndroidAopCollectMethod
+    public static void collect3(Class<? extends SubApplication2> sub) {
+        collectClazz.add(sub);
+    }
+
+    @AndroidAopCollectMethod(regex = ".*?\\$\\$Router")
+    public static void collectRouterClassRegex(Object sub) {
+        Log.e("InitCollect2", "----collectRouterClassRegexObject----" + sub);
+    }
+
+    @AndroidAopCollectMethod(regex = ".*?\\$\\$Router")
+    public static void collectRouterClassRegex(Class<?> sub) {
+        Log.e("InitCollect2", "----collectRouterClassRegexClazz----" + sub);
+    }
+
+    //Directly call this method (method name is not limited) The above functions will be called back in full
+    public static void init(Application application) {
+        Log.e("InitCollect2", "----init----");
+        for (SubApplication2 collect : collects) {
+            collect.onCreate(application);
+        }
+    }
+}
+

Use this collection class 

public class MyApp extends Application {
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        InitCollect.init(this);
+    }
+}
+

Application scenario

  • Multiple modules need to use Application, such as the above example

  • For those who are interested in implementing Router by themselves, this aspect can help you find what you want

  • Adapting routing library such as this ARouter adapts AGP8 Example

  • Another new way to use singletons that are both thread-safe and lazy-loaded! 

    public class TestInstance {
+    private static TestInstance instance;
+
+    @AndroidAopCollectMethod(regex = "^com.flyjingfish.lightrouter.TestInstance$")
+    public static void collectInstance(Object any) {
+        instance = (TestInstance) any;
+    }
+
+    public static TestInstance getInstance() {
+        return instance;
+    }
+
+    public void test() {
+        Log.e("TestInstance", "=====test=");
+    }
+} 
+

  • More application scenarios are waiting for you to explore
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@AndroidAopMatchClassMethod

Brief description

This aspect is used to match a class and its corresponding method. This aspect focuses on the execution of the method (Method Execution). Please note the difference between it and @AndroidAopReplaceClass.

@AndroidAopMatchClassMethod(
+    targetClassName = target class name(including package name),
+    methodName = method name array,
+    type = match type, optional, default EXTENDS
+    excludeClasses = array of classes to exclude in inheritance relationship (valid only when type is not SELF), optional
+)
+

  • When targetClassName is an inner class, do not use the $ character, but use .

  • There are four types of type (default EXTENDS is not set):

    • SELF means that the match is itself of the class set by targetClassName
    • EXTENDS means that the match is all classes inherited from the class set by targetClassName
    • DIRECT_EXTENDS means that the match is directly inherited from the class set by targetClassName
    • LEAF_EXTENDS means that the match is Terminal inheritance (no subclasses) The class set by targetClassName
    graph LR
+C[C class] ---> |C class inherits from B class| B{ B class };
+B --->|B class inherits from A class| A[ A class];
+B --->|DIRECT_EXTENDS / EXTENDS| A[ A class];
+C ---->|LEAF_EXTENDS / EXTENDS| A[ A class];

    Simply put, LEAF_EXTENDS and DIRECT_EXTENDS are two extremes. The former focuses on the last node in the inheritance relationship, while the latter focuses on the first node in the inheritance relationship. Also note that EXTENDS This type of match has a wide range, and all inherited intermediate classes may also add aspect codes

  • excludeClasses

    • If targetClassName is a class name, it means excluding some classes in the inheritance relationship. You can set multiple, and type is not SELF to be effective
    • If targetClassName is a package name, it means excluding some matched classes. You can set multiple, and type is SELF to be effective

  • overrideMethod defaults to false

    • Set to true, if there is no matching method in the subclass (non-interface, can be an abstract class), the parent class method is overwritten

      • targetClassName cannot contain *
      • methodName cannot define [ "*" ]
      • The overridden method cannot be private or final

    • Set to false, if there is no matching method in the subclass, no processing is done

Note

In addition, not all classes can be hooked in

  • type Type is SELF When targetClassName is set, the class must be the code in the installation package. For example: if this class (such as Toast) is in android.jar, it will not work. If you have such a requirement, you should use @AndroidAopReplaceClass

  • type When the type is not SELF, this aspect needs to have a matching method to work. If the subclass does not override the matching method, the subclass will not be matched. Use overrideMethod to ignore this restriction

  • When you modify the configuration of this aspect, in most cases you should clean the project and continue development

    • Create an aspect processing class

    The aspect processing class needs to implement the MatchClassMethod interface and handle the aspect logic in invoke

    interface MatchClassMethod {
+    fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any?
+}
+

    Note

    If the point function is suspend Click here to view

    You can see that in the following examples, some of the method names are set with only the method name, while others also have the return value type and parameter type. The following is an introduction

    Fuzzy matching

      1. When targetClassName ends with .* and has other characters, and type = MatchType.SELF, it matches all classes under the package, including subpackages as shown in Example 9 below
      1. When methodName has only one method name *, it matches all methods in the class as shown in Example 8 below
      1. When methodName only writes the method name but does not write the return type and parameter type, it is also a fuzzy match, which will add all methods with the same name in the target class to the cut point

    Note

    For matching package names, I strongly recommend not doing this, as it intrudes too much code and significantly reduces the packaging speed. It is recommended to use it only for debugging and logging, and the original method should be released in full

    Precise matching

    Write the return type and parameter type on the methodName method name, so that you can accurately find a method to add a cut point (it will automatically degenerate to fuzzy matching when the precise matching is abnormal)

    Matching formula: Return value type method name (parameter type, parameter type...)

    • Return value type can be omitted
    • Method name must be written
    • Parameter type can be omitted. If written, wrap it with (). Multiple parameter types are separated by ,. If there is no parameter, just write ()
    • Separate the return value type and method name with a space
    • If the return value type and parameter type are not written, it means no verification
    • Return value type and parameter type must be expressed in Java types. Except for the 8 basic types, other reference types are package name.class name
    • If the function is modified with suspend, then the return value type is written regardless of the type suspend, parameter types should still be written according to the above points

    • For generic information (such as collection List), the generic information must be erased

    • Different from targetClassName, if the method parameter and return value type are inner classes, they need to be replaced with $ instead of .

    Note

    AOP Code Generation Assistant, which can help you generate code with one click

    Below is a comparison table of Kotlin and Java with different types. If it is Kotlin code, please check the corresponding code

    (If you find any incomplete information, please give me feedback)

    Kotlin type Java type
    Int int
    Short short
    Byte byte
    Char char
    Long long
    Float float
    Double double
    Boolean boolean
    Int? java.lang.Integer
    Short? java.lang.Short
    Byte? java.lang.Byte
    Char? java.lang.Character
    Long? java.lang.Long
    Float? java.lang.Float
    Double? java.lang.Double
    Boolean? java.lang.Boolean
    String java.lang.String
    Unit（Or do not write） void
    Unit? java.lang.Void
    Any java.lang.Object

    Other data types not listed above are reference types, and are written as package name.class name

    Note

    1. vararg str : String in Kotlin is equivalent to String... in Java. In this matching, no matter what kind of code is used, it is represented by String[] (String is used as an example here, and other types are the same)
    2. For types with generics, do not write generics, for example, java.lang.List<String> methodName(java.lang.List<String>) should be directly written as java.lang.List methodName(java.lang.List)

    Examples of various scenarios

    Example 1

    Want to monitor all startActivity jumps inherited from the AppCompatActivity class

    @AndroidAopMatchClassMethod(
+        targetClassName = "androidx.appcompat.app.AppCompatActivity",
+        methodName = {"startActivity"},
+        type = MatchType.EXTENDS
+)
+public class MatchActivityMethod implements MatchClassMethod {
+    @Nullable
+    @Override
+    public Object invoke(@NonNull ProceedJoinPoint joinPoint, @NonNull String methodName) {
+// Write your logic here
+        return joinPoint.proceed();
+    }
+}
+

    ⚠Note: For matching subclass methods, if the subclass does not override the matching method, it is invalid. Use overrideMethod to ignore this limitation

    Example 2

    If you want to hook all android.view.View.OnClickListener onClick, to put it simply, is to globally monitor all click events set onClickListener, the code is as follows:

    @AndroidAopMatchClassMethod(
+    targetClassName = "android.view.View.OnClickListener",
+    methodName = ["onClick"],
+    type = MatchType.EXTENDS //type must be EXTENDS because you want to hook all classes that inherit OnClickListener
+)
+class MatchOnClick : MatchClassMethod {
+    // @SingleClick(5000) //Combined with @SingleClick, add multi-click protection to all clicks, 6 or not
+    override fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any? {
+        Log.e("MatchOnClick", "=====invoke=====$methodName")
+        return joinPoint.proceed()
+    }
+}
+

    Here is a reminder for those who use lambda click monitoring;

    ProceedJoinPoint The target is not android.view.View.OnClickListener - For Java, the target is the object of the class that sets the lambda expression - For Kotlin, the target is null

    The methodName of the invoke callback is not onClick, but the method name automatically generated at compile time, similar to onCreate\(lambda\)14, which contains the lambda keyword

    For the view of onClick(view:View) - If it is Kotlin code, ProceedJoinPoint.args[1] - If it is Java code, ProceedJoinPoint.args[0]

    I will not go into details about this, you will know it after using it yourself;

    To summarize: In fact, for all lambda's ProceedJoinPoint.args

    • If it is Kotlin, the first parameter is the object of the class that sets the lambda expression, and the subsequent parameters are all the parameters of the hook method
    • If it is Java, starting from the first parameter, it is all the parameters of the hook method

    Example 3

    The target class has multiple methods with the same name, and you only want to match one method (the exact matching rule is mentioned above)

    package com.flyjingfish.test_lib;
+
+public class TestMatch {
+    public void test(int value1) {
+
+    }
+
+    public String test(int value1, String value2) {
+        return value1 + value2;
+    }
+}
+
    For example, there is a class TestMatch with two methods named test. You only want to match the method test(int value1,String value2). Then write it as follows:

    package com.flyjingfish.test_lib.mycut;
+
+@AndroidAopMatchClassMethod(
+    targetClassName = "com.flyjingfish.test_lib.TestMatch",
+    methodName = ["java.lang.String test(int,java.lang.String)"],
+    type = MatchType.SELF
+)
+class MatchTestMatchMethod : MatchClassMethod {
+    override fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any? {
+        Log.e("MatchTestMatchMethod",
+            "======" + methodName + ",getParameterTypes=" + joinPoint.getTargetMethod()
+                .getParameterTypes().length
+        );
+// Write your logic here
+// If you don't want to execute the original method logic, 👇 don't call the following sentence
+        return joinPoint.proceed()
+    }
+}
+

    Example 4

    When there are many levels of inheritance relationships, you don't want to add aspects to each level

    @AndroidAopMatchClassMethod(
+    targetClassName = "android.view.View.OnClickListener",
+    methodName = ["onClick"],
+    type = MatchType.EXTENDS // type must be EXTENDS because you want to hook all classes that inherit OnClickListener
+)
+class MatchOnClick : MatchClassMethod {
+    // @SingleClick(5000) //Join @SingleClick to add anti-multiple clicks to all clicks, 6 or 6
+    override fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any? {
+        Log.e("MatchOnClick", "=====invoke=====$methodName")
+        return joinPoint.proceed()
+    }
+}
+
    public abstract class MyOnClickListener implements View.OnClickListener {
+    @Override
+    public void onClick(View v) {
+        ...
+        //This is the necessary logic code
+    }
+}
+
    binding.btnSingleClick.setOnClickListener(object : MyOnClickListener() {
+    override fun onClick(v: View?) {
+        super.onClick(v)//Especially this sentence calls the parent class onClick and wants to retain the logic of executing the parent class method
+        onSingleClick()
+    }
+})
+

    Writing this way will cause the MyOnClickListener onClick above to also be added to the aspect, which is equivalent to a click that calls back twice the invoke of the aspect processing class, which may not be what we want, so we can change it like this 

    @AndroidAopMatchClassMethod(
+    targetClassName = "android.view.View.OnClickListener",
+    methodName = ["onClick"],
+    type = MatchType.EXTENDS,
+    excludeClasses = ["com.flyjingfish.androidaop.test.MyOnClickListener"]//Adding this can exclude some classes
+)
+class MatchOnClick : MatchClassMethod {
+    override fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any? {
+        Log.e("MatchOnClick", "=====invoke=====$methodName")
+        return joinPoint.proceed()
+    }
+}
+
    Or set type to LEAF_EXTENDS directly filters out the intermediate classes (this reminds me of an advertisement: no middlemen make a profit from the price difference)

    Example 5

    What if the entry point is a companion object?

    Suppose there is such a code 

    package com.flyjingfish.androidaop
+
+class ThirdActivity : BaseActivity() {
+    companion object {
+        fun start() {
+            ...
+        }
+    }
+}
+
    The first letter of the companion object modifier companion is capitalized, as shown below 
    @AndroidAopMatchClassMethod(
+    targetClassName = "com.flyjingfish.androidaop.ThirdActivity.Companion",
+    methodName = ["start"],
+    type = MatchType.SELF
+)
+class MatchCompanionStart : MatchClassMethod {
+    override fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any? {
+        Log.e("MatchCompanionStart", "======$methodName")
+        return joinPoint.proceed()
+    }
+}
+

    Example 6

    The entry point is Kotlin Member variables of the code, want to monitor the assignment and retrieval operations

    package com.flyjingfish.androidaop.test
+
+class TestBean {
+    var name: String = "test"
+}
+

    In the code, we will have such operations

    testBean.name = "1111" //Assignment operation
+val name = testBean.name //Get value operation
+

    You can write like this

    @AndroidAopMatchClassMethod(
+    targetClassName = "com.flyjingfish.androidaop.test.TestBean",
+    methodName = ["setName", "getName"],
+    type = MatchType.SELF
+)
+class MatchTestBean : MatchClassMethod {
+    override fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any? {
+        Log.e("MatchTestBean", "======$methodName");
+        ToastUtils.makeText(ToastUtils.app, "MatchTestBean======$methodName")
+        return joinPoint.proceed()
+    }
+}
+

    Example 7

    If the cut point method is suspend What about modified functions?

    package com.flyjingfish.androidaop
+
+class MainActivity : BaseActivity2() {
+    suspend fun getData(num: Int): Int {
+        return withContext(Dispatchers.IO) {
+            getDelayResult()
+        }
+    }
+}
+

    The exact match is written as follows. Regardless of the return value type of the matching function, write suspend. For details, see the Exact Matching Part

    @AndroidAopMatchClassMethod(
+    targetClassName = "com.flyjingfish.androidaop.MainActivity",
+    methodName = ["suspend getData(int)"],
+    type = MatchType.SELF
+)
+class MatchSuspend : MatchClassMethod {
+    override fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any? {
+        Log.e("MatchSuspend", "======$methodName") return joinPoint.proceed()
+    }
+} 
+

    Example 8

    Want to match all methods of a class

    @AndroidAopMatchClassMethod(
+targetClassName = "com.flyjingfish.androidaop.SecondActivity",
+methodName = ["*"],
+type = MatchType.SELF
+)
+class MatchAllMethod : MatchClassMethod {
+override fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any? {
+Log.e("MatchMainAllMethod", "AllMethod======$methodName");
+return joinPoint.proceed()
+}
+}
+
    Write only one method name and fill in * to match all methods

    Example 9

    Want to match all methods of all classes in a package

    @AndroidAopMatchClassMethod(
+    targetClassName = "com.flyjingfish.androidaop.*",
+    methodName = ["*"],
+    type = MatchType.SELF
+)
+class MatchAll : MatchClassMethod {
+    override fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any? {
+        Log.e(
+            "MatchAll",
+            "---->${joinPoint.targetClass}--${joinPoint.targetMethod.name}--${joinPoint.targetMethod.parameterTypes.toList()}"
+        );
+        return joinPoint.proceed()
+    }
+}
+
    1. * replaces class name Or replace part of the package name + class name, this example represents all classes under the com.flyjingfish.androidaop package and its subpackages
    2. Of course, the methodName part can still be filled with multiple fuzzy matching or even exact matching method names

    \ No newline at end of file diff --git a/AndroidAopModifyExtendsClass/index.html b/AndroidAopModifyExtendsClass/index.html new file mode 100644 index 00000000..f42d0601 --- /dev/null +++ b/AndroidAopModifyExtendsClass/index.html @@ -0,0 +1,21 @@ + @AndroidAopModifyExtendsClass - AndroidAOP
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    @AndroidAopModifyExtendsClass

    Brief description

    @AndroidAopModifyExtendsClass(value)

    This function is relatively simple. It modifies the inherited class of a class. Fill in the full name of the class to be modified in the value position. The annotated class is the modified inherited class.

    In addition, if the class name is an internal class, do not use the $ character, but .

    ⚠⚠⚠But it should be noted that the modified inherited class cannot inherit the modified class. The inherited class of the modified class is generally set to the inherited class of the class before modification

    Usage example

    As shown in the following example, the inherited class of AppCompatImageView is replaced with ReplaceImageView

    Application scenario: non-invasively implement the function of monitoring large image loading

    @AndroidAopModifyExtendsClass("androidx.appcompat.widget.AppCompatImageView")
+public class ReplaceImageView extends ImageView {
+    public ReplaceImageView(@NonNull Context context) {
+        super(context);
+    }
+
+    public ReplaceImageView(@NonNull Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public ReplaceImageView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    @Override
+    public void setImageDrawable(@Nullable Drawable drawable) {
+        super.setImageDrawable(drawable);
+//Do some monitoring or modify again
+    }
+}
+

    Usage Inspiration

    1. In the inheritance relationship of the class, you can modify the inherited class and rewrite some methods in the middle. In this way, you can process the original logic in the middle, which is also a monitoring of the calling of some methods of the object
    \ No newline at end of file diff --git a/AndroidAopPointCut/index.html b/AndroidAopPointCut/index.html new file mode 100644 index 00000000..5a643c65 --- /dev/null +++ b/AndroidAopPointCut/index.html @@ -0,0 +1,33 @@ + @AndroidAopPointCut - AndroidAOP
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    @AndroidAopPointCut

    Brief description

    @AndroidAopPointCut is a method-based annotation. This annotation method focuses on the execution of the method (Method Execution). The built-in annotations in this library are all made in this way

    In addition, please try not to place the annotation on the system method, such as: Activity's onCreate() onResume(), etc. Even if it is added, there should be no time-consuming operations during the section processing. JoinPoint.proceed() should be executed normally, otherwise unexpected problems will occur, such as: ANR

    1. Create annotations

    Example

    Create an annotation named CustomIntercept and add @AndroidAopPointCut to your annotation

    @AndroidAopPointCut(CustomInterceptCut::class)
+@Target(
+    AnnotationTarget.FUNCTION,
+    AnnotationTarget.PROPERTY_GETTER,
+    AnnotationTarget.PROPERTY_SETTER
+)
+@Retention(
+    AnnotationRetention.RUNTIME
+)
+annotation class CustomIntercept(vararg val value: String = [])
+
    Java writing: 
    @AndroidAopPointCut(CustomInterceptCut.class)
+@Target({ElementType.METHOD})
+@Retention(RetentionPolicy.RUNTIME)
+public @interface CustomIntercept {
+    String[] value() default {};
+}
+

    • @AndroidAopPointCut's CustomInterceptCut.class is the class that handles the section for you (described below)

    • @Target only works on methods, and setting other ones has no effect

    • For Java, you can set ElementType.METHOD

    • For Kotlin, you can set AnnotationTarget.FUNCTION,AnnotationTarget.PROPERTY_GETTER,AnnotationTarget.PROPERTY_SETTER

    • @Retention can only use RetentionPolicy.RUNTIME

    2. Create a section processing class

    The section processing class needs to implement the BasePointCut interface and handle the section logic in invoke

    interface BasePointCut<T : Annotation> {
+    fun invoke(joinPoint: ProceedJoinPoint, anno: T): Any?
+}
+

    Note

    If the point cutting function is suspend Click here to view

    For example

    CustomInterceptCut inherits from BasePointCut. You can see that there is a generic on BasePointCut. This generic is the @CustomIntercept annotation above. The two are related to each other. 

    class CustomInterceptCut : BasePointCut<CustomIntercept> {
+    override fun invoke(
+        joinPoint: ProceedJoinPoint,
+        annotation: CustomIntercept//annotation is the annotation you added to the method
+    ): Any? {
+        // Write your logic here
+        return joinPoint.proceed()
+    }
+}
+

    3. Use

    Add the annotation you wrote directly to any method, such as onCustomIntercept(). When onCustomIntercept() is called, it will first enter the invoke method of CustomInterceptCut mentioned above.

    @CustomIntercept("I am custom data")
+fun onCustomIntercept() {
+
+}
+
    \ No newline at end of file diff --git a/AndroidAopReplaceClass/index.html b/AndroidAopReplaceClass/index.html new file mode 100644 index 00000000..3c00105b --- /dev/null +++ b/AndroidAopReplaceClass/index.html @@ -0,0 +1,130 @@ + @AndroidAopReplaceClass - AndroidAOP
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    @AndroidAopReplaceClass

    Brief description

    This function belongs to the advanced function, special attention should be paid when using it, otherwise it will be invalid

    This aspect is used to replace the method call in the code, and needs to be used in conjunction with @AndroidAopReplaceMethod. When the replaced method is called, it will enter the method annotated with @AndroidAopReplaceMethod

    • Note that this method is essentially different from the other two. The first two focus on the execution of the method, and automatically retain the method that can execute the original logic (i.e. ProceedJoinPoint);
    • This focuses on the method call, which replaces all the calling places with the static methods of the class you set, and does not automatically retain the method that executes the original logic
    • The advantage of this method is that it can "equivalently" monitor the call of certain system methods (code in android.jar), and the first two do not have this feature, so if it is not based on this requirement, it is recommended to use @AndroidAopMatchClassMethod

    Note

  • To sum up, this function can be said to be a supplement to @AndroidAopMatchClassMethod (the code in android.jar cannot be woven into AOP code). The reason why ProceedJoinPoint is not used is that this method may be restricted by different versions of Android. It can neither use reflection to call the original method nor weave in AOP code, so it cannot be encapsulated with ProceedJoinPoint. If you really want to use it, it is recommended to use MatchClassMethodProxy

  • After you modify the configuration of this aspect, you should clean the project before continuing development

    • 1. Description

    ⚠⚠⚠ Note: The defined replacement class should be placed within the scan rules you set here include exclude Rules, it will not work if written outside the scope

    @AndroidAopReplaceClass

    @AndroidAopReplaceClass(
+    value = "Full name of the class (including package name)"
+    type = Matching type, not required, default SELF
+    excludeClasses = An array of classes that exclude inheritance(valid only when type is not SELF), not required
+)
+
    - If the class name filled in by value is an internal class, do not use the $ character, but .

    • The annotated class is the replacement class; the parameter is the class to be replaced

    • If the corresponding replaced method exists in the replacement method of the annotated class, it will not participate in the method replacement

    • There are four types of type (if the default SELF is not set, please note the difference from @AndroidAopMatchClassMethod, the default types are different when they are not set):

      • SELF means that the class set by value is matched itself
      • EXTENDS means that all classes inherited from the class set by value are matched
      • DIRECT_EXTENDS means that the class set by directly inherited is matched
      • LEAF_EXTENDS means matching the class set by terminal inheritance (no subclasses) value
      graph LR
+C[C class] ---> |C class inherits from B class| B{ B class };
+B --->|B class inherits from A class| A[ A class];
+B --->|DIRECT_EXTENDS / EXTENDS| A[ A class];
+C ---->|LEAF_EXTENDS / EXTENDS| A[ A class];

      In simple terms, LEAF_EXTENDS and DIRECT_EXTENDS are two extremes. The former focuses on the last node in the inheritance relationship, while the latter focuses on the first node in the inheritance relationship.

    Warning

    Also note that when type is not [SELF], it will slow down the packaging speed. Please use it as appropriate and try not to use it if possible.

    @AndroidAopReplaceNew

    @AndroidAopReplaceNew
+

    For example, this method changes new Thread() to new MyThread()

    • The annotated method must be public and static, but the method name can be defined arbitrarily

    • There can only be one method parameter, and the parameter is the replaced class

      • If the replaced class does not inherit the replaced class, then there will be problems with the subsequent object method call. You need to replace all its methods with @AndroidAopReplaceMethod
      • If the replaced class inherits the replaced class, then there will be no problem with the subsequent method call

    • Is the method return type empty?

      • If it is not empty, the new object will be called back to this method, and the object returned by this method will also replace the new object. Usually when the return type is not empty, you should define it the same as the parameter type.
      • If it is empty, only the class name after new will be replaced.
      • In any case, the class name after new will become the parameter type of the method.
    • This will replace all constructor calls.

    @AndroidAopReplaceMethod

    @AndroidAopReplaceMethod(
+"Method name (including return value type and parameter type)"
+)
+

    • The annotated method must be public and static, but the method name can be defined arbitrarily

    • The annotated method is the replacement method; the parameter is the method to be replaced, which must include the return type and parameter type. The matching rules are as follows matching rules

    • If the replaced method is a static method of the class, the parameter type, order and number of the replacement method you define should be consistent

    • If the replaced method is a member method of a class, the first parameter of the replacement method you define must be the type of the replaced class (this is the meaning of the Toast.show example below), and the remaining parameter types, order, and number are consistent with the replaced method.

      • There is an exception: the first type can be set to Any (Java is Object). This function is mainly for @AndroidAopReplaceNew not to inherit the replacement class to respond, because the replaced class no longer belongs to the replaced class

    • The return type of the annotated method is consistent with the replaced method, regardless of whether the replaced method is static or not

    • The replaced method must belong to the replaced class filled in by @AndroidAopReplaceClass

    • If the replaced method starts with <init>, the function is similar to @AndroidAopReplaceNew, except that it will only call back the new class, will not change the new class name, and can specify the construction method.

      • The method must have only one parameter, which is the replaced class (must be equal to the class of @AndroidAopReplaceClass)
      • And the return type cannot be empty (must inherit or be equal to the class of @AndroidAopReplaceClass)
      • The object returned by the method will replace the new object (of course, it is also possible to directly return the callback object)

    For specific writing requirements, please refer to the usage method below

    2. Matching rules

    You can see that the return value type and parameter type are written in the example below. The following is an introduction

    The difference from @AndroidAopMatchClassMethod is that this must be an exact match, and the writing is as follows:

    Matching writing formula: Return value type method name (parameter type, parameter type...)

    • The return value type, method name, and parameter type must be written in full
    • Wrap the parameter type with (), separate multiple parameter types with ,, and only write () if there is no parameter
    • Use a space to separate the return value type and the method name
    • Both the return value type and the parameter type must be represented by Java types. Except for the 8 basic types, other reference types are package name.class name
    • If the function is modified with suspend, then the return value type should be written as suspend regardless of the type, and the parameter type should still be written according to the above points

    • For generic information (such as the collection List), the generic information must be erased

    • Different from the replacement class name filled in, if the method parameter and return value type are inner classes, they need to be replaced with $ instead of .

    Note

    AOP Code Generation Assistant, can help you generate code with one click

    Below is a table showing different types of Kotlin vs. Java. If it is Kotlin code, please check the corresponding code

    (If you find any incomplete information, please give me feedback)

    Kotlin type Java type
    Int int
    Short short
    Byte byte
    Char char
    Long long
    Float float
    Double double
    Boolean boolean
    Int? java.lang.Integer
    Short? java.lang.Short
    Byte? java.lang.Byte
    Char? java.lang.Character
    Long? java.lang.Long
    Float? java.lang.Float
    Double? java.lang.Double
    Boolean? java.lang.Boolean
    String java.lang.String
    Unit（Or do not write） void
    Unit? java.lang.Void
    Any java.lang.Object

    Other data types not in the table above are reference types, and are written as package name.class name

    Note

    1. vararg str : String in Kotlin is equivalent to String... in Java. In this matching, no matter what kind of code is used, it is represented by String[] (String is used as an example here, and other types are the same)
    2. For types with generics, do not write generics, for example, java.lang.List<String> methodName(java.lang.List<String>) should be directly written as java.lang.List methodName(java.lang.List)

    3. Use cases

    1. Java writing

    @AndroidAopReplaceClass(
+        "android.widget.Toast"
+)
+public class ReplaceToast {
+    @AndroidAopReplaceMethod(
+            "android.widget.Toast makeText(android.content.Context, java.lang.CharSequence, int)"
+    )
+// Because the replaced method is static, the parameter type and order correspond to the replaced method
+    public static Toast makeText(Context context, CharSequence text, int duration) {
+        return Toast.makeText(context, "ReplaceToast-" + text, duration);
+    }
+
+    @AndroidAopReplaceMethod(
+            "void setGravity(int , int , int )"
+    )
+// Because the replaced method is not a static method, the first parameter is the replaced class, and the subsequent parameters correspond to the replaced method
+    public static void setGravity(Toast toast, int gravity, int xOffset, int yOffset) {
+        toast.setGravity(Gravity.CENTER, xOffset, yOffset);
+    }
+
+    @AndroidAopReplaceMethod(
+            "void show()"
+    )
+// Although the replaced method has no parameters, because it is not a static method, the first parameter is still the replaced class
+    public static void show(Toast toast) {
+        toast.show();
+    }
+}
+

    This example means that all places where Toast.makeText and Toast.show in the code are replaced with ReplaceToast.makeText and ReplaceToast.show

    2. Kotlin writing method

    @AndroidAopReplaceClass("android.util.Log")
+object ReplaceLog {
+    @AndroidAopReplaceMethod("int e(java.lang.String,java.lang.String)")
+    @JvmStatic
+    fun e(tag: String, msg: String): Int {
+        return Log.e(tag, "ReplaceLog-$msg")
+    }
+}
+

    This example means that all places where Log.e are written in the code are replaced with ReplaceLog.e

    If the replaced function is modified with suspend, then you can only write it in Kotlin code, and the replacement function must also be modified with suspend

    @AndroidAopReplaceClass("com.flyjingfish.androidaop.MainActivity")
+object ReplaceGetData {
+    //The only change in the annotation parameter is the return type, which is changed to suspend, and the rest remain unchanged
+    @AndroidAopReplaceMethod("suspend getData(int)")
+    @JvmStatic
+// The function definition writing rules here remain unchanged, just add an additional suspend modifier
+    suspend fun getData(mainActivity: MainActivity, num: Int): Int {
+        Log.e("ReplaceGetData", "getData")
+        return mainActivity.getData(num + 1)
+    }
+}
+

    3. Construction method

    @AndroidAopReplaceClass(value = "com.flyjingfish.test_lib.TestMatch", type = MatchType.EXTENDS)
+object ReplaceTestMatch {
+
+    @AndroidAopReplaceNew
+    @JvmStatic
+    fun newTestMatch1(testBean: TestMatch3) {
+//Replace the class name after new, the parameter type is the replaced type, the return type of this method is empty, and this method will not be called back
+    }
+
+    @AndroidAopReplaceNew
+    @JvmStatic
+    fun newTestMatch2(testBean: TestMatch3): TestMatch {
+//Replace the class name after new, the parameter type is the replaced type, and the return type of this method is not empty, then this method will be called back, and the returned object will replace the new object
+        return new TestMatch ()
+    }
+
+    @AndroidAopReplaceMethod("<init>(int)")
+    @JvmStatic
+    fun getTestBean(testBean: TestMatch): TestMatch {
+//Only one parameter can be the replaced class, the return type cannot be empty, and the object returned by the method will replace the newly created object
+        return TestMatch(2)
+    }
+
+}
+

    The above three usage methods can replace the new object. The difference is

    • The first method directly replaces the new class name (directly replaces the type)

    • The second method not only replaces the new class name, but also calls back to the method. The object returned here will also replace the newly created object (the difference between the two is whether the return type is empty)

    • The third method is different from the first two in that it does not replace the new class name, but calls back to the method. The object returned here will replace the newly created object. And the defined parameter must be one and only one type defined by @AndroidAopReplaceClass, and the return type cannot be null

    • The function defined by @AndroidAopReplaceNew has one and only one parameter, and the parameter type can be any type except the basic type

    4. Proxy usage of @AndroidAopMatchClassMethod

      1. First, you must still use @AndroidAopReplaceClass to replace the method call, and use @ProxyMethod to add annotations to the replacement method

    • The replaced method needs to be called in the method implementation

    • In addition to the requirements mentioned above, the definition of the method must be consistent with the original method, such as the name, annotations, parameter names, annotations on parameters, etc. of the original method. If you don't use this information, it doesn't matter. If you want to use it, you must do so
    package com.flyjingfish.test_lib.replace;
+
+@AndroidAopReplaceClass(
+        "android.widget.Toast"
+)
+public class ReplaceToast {
+    @AndroidAopReplaceMethod(
+            "android.widget.Toast makeText(android.content.Context, java.lang.CharSequence, int)"
+    )
+    @ProxyMethod(proxyClass = Toast.class, type = ProxyType.STATIC_METHOD)
+    public static Toast makeText(Context context, CharSequence text, int duration) {
+        return Toast.makeText(context, text, duration);
+    }
+
+    @AndroidAopReplaceMethod(
+            "void setGravity(int , int , int )"
+    )
+    @ProxyMethod(proxyClass = Toast.class, type = ProxyType.METHOD)
+    public static void setGravity(Toast toast, int gravity, int xOffset, int yOffset) {
+        toast.setGravity(gravity, xOffset, yOffset);
+    }
+
+    @AndroidAopReplaceMethod(
+            "void show()"
+    )
+    @ProxyMethod(proxyClass = Toast.class, type = ProxyType.METHOD)
+    public static void show(Toast toast) {
+        toast.show();
+    }
+}
+
      1. Use @AndroidAopMatchClassMethod to define the ReplaceToast proxy class
    • type needs to be MatchType.SELF
    • Use MatchClassMethodProxy or MatchClassMethodSuspendProxy class as the aspect processing class
    • Implement the invokeProxy or invokeSuspendProxy method to handle the logic
    @AndroidAopMatchClassMethod(
+    targetClassName = "com.flyjingfish.test_lib.replace.ReplaceToast",
+    type = MatchType.SELF,
+    methodName = ["*"]
+)
+class ReplaceToastProxy : MatchClassMethodProxy() {
+    override fun invokeProxy(joinPoint: ProceedJoinPoint, methodName: String): Any? {
+        Log.e(
+            "ReplaceToastProxy",
+            "methodName=$methodName," + "parameterNames=${joinPoint.targetMethod.parameterNames.toList()}," + "parameterTypes=${joinPoint.targetMethod.parameterTypes.toList()}," + "returnType=${joinPoint.targetMethod.returnType}," + "args=${joinPoint.args?.toList()},target=${joinPoint.target},targetClass=${joinPoint.targetClass},"
+        )
+
+        return joinPoint.proceed()
+    }
+}
+

    So you can For some system methods, ProceedJoinPoint is used to control the method call. The key is to use @ProxyMethod to mark the method, so that the information returned by ProceedJoinPoint is the method information of the replaced class>

    Note

    AOP code generation assistant, which can help you generate proxy usage code with one click

    \ No newline at end of file diff --git a/AspectJ_Migration_Guide/index.html b/AspectJ_Migration_Guide/index.html new file mode 100644 index 00000000..916a0200 --- /dev/null +++ b/AspectJ_Migration_Guide/index.html @@ -0,0 +1,127 @@ + AspectJ Migration Guide - AndroidAOP
    Skip to content

    AspectJ Migration Guide

    Migrating from AspectJ is also very simple

    1. Annotation-based aspects

    AspectJ code

    Take click annotation as an example, you may have such a code

    Click annotation

    @Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.METHOD)
+public @interface SingleClick {
+
+    long DEFAULT_INTERVAL_MILLIS = 1000;
+
+    /**
+     * @return The interval between quick clicks (ms), the default is 1000ms
+     */
+    long value() default DEFAULT_INTERVAL_MILLIS;
+}
+

    Click annotation aspect

    @Aspect
+public final class SingleClick$$AspectJ {
+    @Pointcut("within(@com.flyjingfish.light_aop_core.annotations.SingleClick *)")
+    public final void withinAnnotatedClass() {
+    }
+
+    @Pointcut("execution(!synthetic * *(..)) && withinAnnotatedClass()")
+    public final void methodInsideAnnotatedType() {
+    }
+
+    @Pointcut("execution(@com.flyjingfish.light_aop_core.annotations.SingleClick * *(..)) || methodInsideAnnotatedType()")
+    public final void method() {
+    }
+
+    @Around("method() && @annotation(vSingleClick)")
+    public final Object cutExecute(final ProceedingJoinPoint joinPoint,
+                                   final SingleClick vSingleClick) {
+// Section processing logic
+        return result;
+    }
+}
+

    AndroidAOP code

    First create a class to handle sections

    class SingleClickCut : ClickCut<SingleClick>() {
+    //Fill in your original annotations for this pattern
+    override fun invoke(joinPoint: ProceedJoinPoint, anno: SingleClick): Any? {
+//Copy the logic code here and make some changes
+        return null
+    }
+
+}
+

    Then add the @AndroidAopPointCut(SingleClickCut.class) annotation on top of your original annotation. The annotation @Retention can only set RUNTIME, and @Target can only set METHOD

    //Just add such an annotation. The parameter is the section processing class SingleClickCut.class created above
+@AndroidAopPointCut(SingleClickCut.class)
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.METHOD)
+public @interface SingleClick {
+
+    long DEFAULT_INTERVAL_MILLIS = 1000;
+
+    /**
+     * @return The interval between quick clicks (ms), the default is 1000ms
+     */
+    long value() default DEFAULT_INTERVAL_MILLIS;
+}
+
    Kotlin writing 
    @AndroidAopPointCut(SingleClickCut::class)
+@Retention(AnnotationRetention.RUNTIME)
+@Target(
+    AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY_GETTER, AnnotationTarget.PROPERTY_SETTER
+)
+annotation class SingleClick(
+    /**
+     * The interval between quick clicks (ms), the default is 1000ms
+     */
+    val value: Long = DEFAULT_INTERVAL_MILLIS
+) {
+    companion object {
+        const val DEFAULT_INTERVAL_MILLIS: Long = 1000
+    }
+}
+

    2. Aspects that match the execution process of a class method

    @AndroidAopMatchClassMethod is similar to the execution matching type in AspectJ, focusing on the execution of methods

    AndroidAOP currently only matches methods of a class, not just a method regardless of the class. Because the author thinks that doing so is almost meaningless, and doing so often leads to the addition of many classes that do not want to be added to the aspect, which is not conducive to everyone's management and control of their own code (a bit out of control~)

    AspectJ code

    For example, you originally set the aspect code for threadTest of MainActivity, as shown below:

    package com.flyjingfish.test
+
+class MainActivity : BaseActivity() {
+    fun threadTest() {
+        Log.e("threadTest", "------")
+    }
+}
+

    The matching aspect code of AspectJ is as follows:

    @Aspect
+public class CheckAspectJ {
+    private static final String TAG = "CheckAspectJ";
+
+    @Pointcut("execution(* com.flyjingfish.test.MainActivity.threadTest())")
+    public void pointcutThreadTest() {
+    }
+
+    @Around("pointcutThreadTest()")
+    public void calculateFunctionTime(ProceedingJoinPoint joinPoint) throws Throwable {
+        Log.i(TAG, "pointcut1 ---------calculateFunctionTime---------@Around");
+        long beginTime = System.currentTimeMillis();
+        joinPoint.proceed();
+        long endTime = System.currentTimeMillis();
+        Log.i(TAG, "pointcut1 ----------calculateFunctionTime-- -----Running time: " + (endTime - beginTime));
+    }
+} 
+

    AndroidAOP code@AndroidAopMatchClassMethod

    @AndroidAopMatchClassMethod(
+    targetClassName = "com.flyjingfish.test.MainActivity",
+    methodName = ["threadTest"],
+    type = MatchType.SELF
+)
+class MatchActivityMethod : MatchClassMethod {
+    override fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any? {
+        Log.e("MatchActivityMethod", "=====invoke=====$methodName")
+        long beginTime = System . currentTimeMillis ();
+        joinPoint.proceed();
+        long endTime = System . currentTimeMillis ();
+        return null
+    }
+}
+

    3. Match the called aspect of a class method

    @AndroidAopReplaceClass is similar to the call matching type in AspectJ, focusing on the method call

    AspectJ code

    Those who have used AspectJ should know that some system methods can only be matched through call. For example, you originally targeted e of android.util.Log sets the aspect code, and the matching aspect code of AspectJ is as follows:

    @Aspect
+public final class TestAspectJ {
+    @Pointcut("call(* android.util.Log.e(..))")
+    public void pointcutThreadTest() {
+    }
+
+    @Around("pointcutThreadTest()")
+    public final Object cutExecute(final JoinPoint joinPoint) throws Throwable {
+        Log.e("TestAspectJ", "====cutExecute");
+        return null;
+    }
+}
+

    AndroidAOP code

    Click here to see detailed usage of @AndroidAopReplaceClass

    @AndroidAopReplaceClass("android.util.Log")
+object ReplaceLog {
+    @AndroidAopReplaceMethod("int e(java.lang.String tag, java.lang.String msg)")
+    @JvmStatic
+    fun logE(String tag, String msg): Int {
+        return Log.e(tag, msg)
+    }
+} 
+

    Note

    Unlike AspectJ, AndroidAOP does not retain the way to execute the original method, but you can call the original method yourself without causing infinite recursive calls (indirect calls to the original method will cause infinite recursion here is a solution), Click here for detailed usage

    4. Other aspect methods

    • @Before: Execute code before method execution.
    • @After: Execute code after method execution, regardless of whether an exception is thrown.
    • @AfterReturning: Execute code after method execution, only when the method returns successfully.
    • @AfterThrowing: Execute code when a method throws an exception.

    All of the above can be indirectly implemented through several existing annotation aspects click here to refer to FAQ #5 Want to insert code before and after the method

    \ No newline at end of file diff --git a/FAQ/index.html b/FAQ/index.html new file mode 100644 index 00000000..0314ad1e --- /dev/null +++ b/FAQ/index.html @@ -0,0 +1,76 @@ + FAQ - AndroidAOP
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    FAQ

    1. What to do when there are multiple annotations or matching aspects on the same method

    • When multiple aspects are superimposed on a method, annotations take precedence over matching aspects, and annotation aspects are executed from top to bottom
    • The next aspect will be executed only after * proceed* is called, and the code in the aspect method will be called only after * proceed* is executed on the last aspect among multiple aspects
    • Calling proceed(args) in the previous aspect can update the parameters passed in the method, and the updated parameters of the previous layer will also be obtained in the next aspect
    • When there is an asynchronous call proceed, the return value of the first asynchronous call proceed (that is, the return value of invoke) is the return value of the cut-in method; otherwise, if there is no asynchronous call proceed, the return value is the return value of the last cut-in method

    2. Error "ZipFile invalid LOC header (bad signature)" when building

    • Please restart Android Studio and then clean the project

    3. Memory leak occurs in the cut-in processing class?

    • This situation is usually because you have made a strong reference in the aspect processing class

    4. Want to see all the locations where the aspect code is added

    plugins {
+...
+}
+androidAopConfig {
+  //Closed by default, enabled after build or packaging, a cut information json file will be generated in app/build/tmp/cutInfo.json
+  cutInfoJson true
+}
+android {
+...
+}
+

    5. Want to insert code before and after the method

    • Matching aspect
    @AndroidAopMatchClassMethod(
+    targetClassName = "com.flyjingfish.test_lib.TestMatch",
+    methodName = ["test2"],
+    type = MatchType.SELF
+)
+class MatchTestMatchMethod : MatchClassMethod {
+    override fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any? {
+        //Insert code before the method
+        val value = joinPoint.proceed()
+        //Insert code after the method
+        return value
+    }
+}
+
    Click here for more details
    • Annotation aspect
    class CustomInterceptCut : BasePointCut<CustomIntercept> {
+    override fun invoke(
+        joinPoint: ProceedJoinPoint,
+        annotation: CustomIntercept //annotation is the annotation you add to the method
+    ): Any? {
+        //Insert code before the method
+        val value = joinPoint.proceed()
+        //Insert code after the method
+        return value
+    }
+}
+
    • Replace the aspect
    @AndroidAopReplaceClass("android.util.Log")
+object ReplaceLog {
+    @AndroidAopReplaceMethod("int e(java.lang.String,java.lang.String)")
+    @JvmStatic
+    fun e(tag: String, msg: String): Int {
+        //Insert code before the method
+        val log = Log.e(tag, "ReplaceLog-$msg")
+        //Insert code after the method
+        return log
+    }
+}
+
    • AspectJ's @AfterReturning and @AfterThrowing We will match the aspect Let's take an example
    @AndroidAopMatchClassMethod(
+    targetClassName = "com.flyjingfish.test_lib.TestMatch",
+    methodName = ["test2"],
+    type = MatchType.SELF
+)
+class MatchTestMatchMethod : MatchClassMethod {
+    override fun invoke(joinPoint: ProceedJoinPoint, anno: TryCatch): Any? {
+        return try {
+            val value = joinPoint.proceed()
+            // Here is @AfterReturning
+            value
+        } catch (e: Throwable) {
+            // Here is @AfterThrowing
+            throw RuntimeException(e)
+        }
+    }
+}
+

    6. What is the life cycle of the aspect processing class of the matching aspect and the annotation aspect?

    The aspect processing class is bound to the corresponding method of the class, which can be divided into two cases

    • a. If the pointcut method is not static
    • The aspect processing class will be recycled as the object where the method is located is recycled, but this is not timely; the recycling time is when any other aspect is processed.
    • And each object's pointcut method corresponds to an object of the aspect processing class, that is, there are as many objects as the class where the pointcut method is located creates.
    • b. If the pointcut method is static
    • Because the aspect method is static, the aspect processing class will always exist once it is created.
    • And a class method only corresponds to one aspect processing class

    No matter which type a or b is, the aspect processing class object will only be created when the method is executed.

    In short, the object of the aspect processing class is bound to the class or the object of the class, and its life cycle is slightly longer than the object of the class of the pointcut non-static method.

    This is different from Aspectj, because we often want to set some member variables in the aspect processing class to facilitate the use of the next aspect processing; if you want to do this in Aspectj, you need to save the "member variable" as a "static variable", and you also need to distinguish what object executes the pointcut method. You need to write a lot of code. AndroidAOP just optimizes and solves this problem.

    7. Compilation error or file usage on Windows computer

    • Try upgrading Gradle to 8.7 or above to see if it can be solved

    image

    • Then make sure that this library is the latest version, and then make sure that id 'android.aop' is in the last line of build.gradle of the app module

    image

    • Otherwise, please try the following steps (⚠⚠⚠Please note that the following is only for Windows computers, and Mac computers should not have this problem)
    Click here for more details

    • First, make sure that running ./gradlew --stop directly can succeed. If it fails, please check it online and then proceed to the following steps image

    • Click on the run configuration image

    • Add the Run External tool task type based on the original one image

    • Configure as follows image

    Parameters:
    Program: The absolute path of the project\gradlew.bat
    Arguments: ./gradlew --stop
    Working directory: The absolute path of the project\

    • Adjust the order to the top image

    • Click OK to complete image

    • Run the project directly. If the following situation occurs, it means that the configuration is successful image

    • In addition, some netizens mentioned that changing ksp to kapt can also solve the problem

    Click here for more details

    The jar package you added contains the following files, please delete them and import the jar package locally instead

    show

    Operation steps

    • Open the directory where the jar package is locatedcd /Users/a111/Downloads/ida-android-new/app/libs

    • Unzip the jar package jar -xvf bcprov-jdk15on-1.69.jar

    show

    • After unzipping

    show

    • Open META-INF and delete the following files

    show

    • Packaging, you can use it laterjar -cfm0 bcprov-jdk15on-1.69.jar META-INF/MANIFEST.MF org

    show

    9. Why do I still feel that the package compilation is slow even though I have enabled androidAop.debugMode = true?

    The main reason for this is that you may have used some Router libraries or other plugins that change the packaging method. You can refer to here to transform your project click here, here is how to remove the plugin part of these libraries and use AndroidAOP to complete its plugin work, so you can delete these plugins to speed up packaging

    10. How to match variable parameters?

    vararg str : String in Kotlin is equivalent to String... in Java. In this matching, no matter what kind of code is represented by String[] (String is used as an example here, and other types are the same)

    11. After adding this library, it prompts that the file cannot be found when installing the app

    Check whether the configuration in your build.gradle contains Chinese. If there is Chinese, please try to change it to English and install it again

    12. Will calling the original method in the method annotated with @AndroidAopReplaceMethod cause recursion?

    • If it is a direct call, it will not cause recursion, and the framework has already handled it

    • If it is an indirect call, it will cause recursion, such as calling methods of other classes that contain the original method. The framework does not handle this. If you need to do this, you can combine exclude To use Homepage access, step 4 is introduced, use exclude to exclude the indirect call class

    13. What should I do if I don’t want to introduce the built-in annotation aspect?

    Please upgrade to version 2.1.5 or later, and check the access step 3

    14. Different modules of componentized projects use products such as aar for compilation. How to speed up the packaging speed?

    • The answer is still to use debugMode. This homepage accesses step 5 has been explained. For this situation, you should configure it as follows
    //👇This item is undoubtedly, it must be turned on! !
+androidAop.debugMode=true
+//👇This item needs to be turned off when you release the aar package. You can't turn it on again, because the release of aar is actually the release of the release package, don't you think?
+androidAop.debugMode.variantOnlyDebug=false
+
    • As for whether to use reflection, it depends on the person. It depends on your choice
    //👇Turn it on to use reflection
+androidAop.reflectInvokeMethod=true
+//👇This item is similar to androidAop.debugMode.variantOnlyDebug. If you use reflection in the release package, turn this item off! !
+androidAop.reflectInvokeMethod.variantOnlyDebug=false
+

    In summary, releasing aar is actually the same as releasing apk, and the understanding of the above configurations is actually the same

    Some people may still have questions, how should they be used in the final packaging?

    • In fact, it is okay to continue using debugMode, and the configuration is basically the same as above.
    • If you do not use debugMode, the aar packages of your different modules have actually been processed by AOP according to the above steps. You do not need to do it again when packaging. You can remove it under the app module, for example:
    androidAopConfig {
+    //👇 Exclude the aar packages that have been processed by AOP, and you can still read the aspect configuration of these packages
+    exclude 'aar package name 1', 'aar package name 2'
+    //❗️❗️❗️It is worth mentioning that when you publish aar, do not configure the package name of the aar you want to publish here, otherwise the aar will not be processed by AOP
+}
+
    \ No newline at end of file diff --git a/Implications/index.html b/Implications/index.html new file mode 100644 index 00000000..d8850eae --- /dev/null +++ b/Implications/index.html @@ -0,0 +1,216 @@ + Implications - AndroidAOP
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    Implications

    1. I don’t know if you have such a requirement. There is an interface used in multiple places. In this case, you may write a tool class to encapsulate it.

    In fact, for this kind of demand, you can make an annotation aspect. When processing the aspect, you can pass the data back to the aspect method after requesting it, for example:

    @AndroidAopPointCut(CommonDataCut::class)
+@Target(
+    AnnotationTarget.FUNCTION
+)
+@Retention(AnnotationRetention.RUNTIME)
+@Keep
+annotation class CommonData
+
    class CommonDataCut : BasePointCut<CommonData> {
+    override fun invoke(
+        joinPoint: ProceedJoinPoint,
+        anno: CommonData
+    ): Any? {
+        if (joinPoint.args[0] != null) {
+// If there is data, continue to execute the method directly
+            joinPoint.proceed()
+        } else {
+// If there is no data, write the network request data here, and call joinPoint.proceed(data) after the data is returned to pass the data back to the method
+            HttpData.getInstance().getCountryList(req, new HttpResponeListener < Data >() {
+
+                @Override
+                public void onSuccess(String url, Data response) {
+                    joinPoint.proceed(response)
+                }
+
+            });
+        }
+
+        return null
+    }
+}
+
    @CommonData
+fun onTest(data: Data) {
+//Because the facet has passed the data back, the data is no longer null
+}
+//When calling the method, just pass null, and get the data after entering the facet. After entering the method, the data will be available
+binding.btnSingleClick.setOnClickListener {
+    onTest(null)
+}
+

    2. In addition, there is no way to pass objects to the facet annotation, or the data is dynamic, so what should I do?

    @AndroidAopPointCut(CommonDataCut::class)
+@Target(
+    AnnotationTarget.FUNCTION
+)
+@Retention(AnnotationRetention.RUNTIME)
+@Keep
+annotation class CommonData
+
    class CommonDataCut : BasePointCut<CommonData> {
+    override fun invoke(
+        joinPoint: ProceedJoinPoint,
+        anno: CommonData
+    ): Any? {
+        if (!joinPoint.args.isNullOrEmpty()) {
+            val arg1 =
+                joinPoint.args[0] // This is the incoming data, so you can pass data to the slice at will
+
+        }
+        return joinPoint.proceed()
+    }
+}
+
    @CommonData
+fun onTest(number: Int) {//num is the dynamic data of the incoming slice, regardless of type
+
+}
+
+binding.btnSingleClick.setOnClickListener {
+//Input dynamic data when calling the method
+    onTest(1)
+}
+

    3. If you want to hook all onClick of android.view.View.OnClickListener, in other words, you want to globally monitor all click events of OnClickListener. The code is as follows:

    @AndroidAopMatchClassMethod(
+    targetClassName = "android.view.View.OnClickListener",
+    methodName = ["onClick"],
+    type = MatchType.EXTENDS //type must be EXTENDS because you want to hook all classes that inherit OnClickListener
+)
+class MatchOnClick : MatchClassMethod {
+    override fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any? {
+        Log.e("MatchOnClick", "=====invoke=====$methodName")
+        return joinPoint.proceed()
+    }
+}
+
    Here is a tip for using lambda click listener;

    The target of ProceedJoinPoint is not android.view.View.OnClickListener

    • For Java, the target is the object of the outermost class of the file
    • For Kotlin, the target is null

    The methodName of the invoke callback is not onClick but the method name automatically generated during compilation, similar to onCreate\(lambda\)14, which contains the lambda keyword

    For the view of onClick(view:View)

    • If it is Kotlin code, ProceedJoinPoint.args[1]
    • If it is Java code, ProceedJoinPoint.args[0]

    I will not go into details about this, you will know it after using it yourself;

    To summarize: In fact, for all lambda's ProceedJoinPoint.args

    • If it is Kotlin, the first parameter is the object of the outermost class of the file where the cut point is located, and the subsequent parameters are all the parameters of the hook method
    • If it is Java, it starts from the first parameter and is hook All parameters of the method

    4. I believe that when you use the permission @Permission, you may think that now you only get permission to enter the method, but there is no callback without permission. The following example teaches you how to do it

    • First, define an interface for permission rejection. Here, I define one callback as @Permission and the other as the result returned by the permission framework (here I use rxpermissions, you can use it at will) 
      interface PermissionRejectListener {
+    fun onReject(
+        permission: com.flyjingfish.android_aop_core.annotations.Permission,
+        permissionResult: Permission
+    )
+}
+
    • Use the @Permission permission annotation and implement the PermissionRejectListener interface for the object where its method is located 
      // Implement PermissionRejectListener on the object using @Permission Interface 
+class MainActivity : BaseActivity2(), PermissionRejectListener {
+    lateinit var binding: ActivityMainBinding
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState) binding = ActivityMainBinding . inflate (layoutInflater) setContentView (binding.root) binding . btnPermission . setOnClickenerListener { toGetPicture() } binding . btnPermission2 . setOnClickListener { toOpenCamera() }
+    }
+
+    @Permission(
+        tag = "toGetPicture",
+        value = [Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE]
+    )
+    fun toGetPicture() { //Find pictures } @Permission(tag = "toOpenCamera",value = [Manifest.permission.CAMERA]) fun toOpenCamera(){
+//Open the camera
+    }
+
+    override fun onReject(
+        permission: Permission,
+        permissionResult: com.tbruyelle.rxpermissions3.Permission
+    ) {
+//Use the tag to distinguish which method's permission is denied
+        if (permission.tag == "toGetPicture") {
+
+        } else if (permission.tag == "toOpenCamera") {
+
+        }
+    }
+}
+
    • Set the code for requesting permissions on your Application 
      class MyApp2 : Application() {
+    override fun onCreate() {
+        super.onCreate()
+        AndroidAop.setOnPermissionsInterceptListener(object : OnPermissionsInterceptListener {
+            @SuppressLint("CheckResult")
+            override fun requestPermission(
+                joinPoint: ProceedJoinPoint,
+                permission: Permission,
+                call: OnRequestPermissionListener
+            ) {
+                val target = joinPoint.getTarget()
+                val permissions: Array<out String> = permission.value
+                when (target) {
+                    is FragmentActivity -> {
+                        val rxPermissions = RxPermissions((target as FragmentActivity?)!!)
+                        rxPermissions.requestEach(*permissions)
+                            .subscribe { permissionResult: com.tbruyelle.rxpermissions3.Permission ->
+                                call.onCall(permissionResult.granted)
+                                //👇The key is here👇
+                                if (!permissionResult.granted && target is PermissionRejectListener) {
+                                    (target as PermissionRejectListener).onReject(
+                                        permission,
+                                        permissionResult
+                                    )
+                                }
+                            }
+                    }
+
+                    is Fragment -> {
+                        val rxPermissions = RxPermissions((target as Fragment?)!!)
+                        rxPermissions.requestEach(*permissions)
+                            .subscribe { permissionResult: com.tbruyelle.rxpermissions3.Permission ->
+                                call.onCall(permissionResult.granted)
+                                //👇The key is here👇
+                                if (!permissionResult.granted && target is PermissionRejectListener) {
+                                    (target as PermissionRejectListener).onReject(
+                                        permission,
+                                        permissionResult
+                                    )
+                                }
+                            }
+                    }
+
+                    else -> {
+                        // TODO: target is not FragmentActivity or Fragment, indicating that the method where the annotation is located is not in it. Please handle this situation yourself.
+                        // Suggestion: The first parameter of the cut point method can be set to FragmentActivity or Fragment, and then joinPoint.args[0] can be obtained
+                    }
+                }
+            }
+        })
+
+    }
+}
+

    Note

    The core of this technique is "solving the problem of not being able to call the method of the object where the pointcut method is located", solving this problem by adding an interface to the object where the pointcut method is located, and most importantly, making it universal

    5. Is the third-party routing library not compatible with AGP8? Here is an example of ARouter to teach you how to use AndroidAOP to solve this problem

    What does the ARouter plugin library mainly do? Why can AndroidAOP solve this problem? In fact, its plugin library does two things:

    1. Find three categories.
    2. Automatically register these three categories.

    No more nonsense, let’s go straight to the code 

    object AlibabaCollect {
+    private val classNameSet =
+        mutableSetOf<String>() @AndroidAopCollectMethod(regex = "com.alibaba.android.arouter.routes.*?", collectType = CollectType.DIRECT_EXTENDS) @JvmStatic
+    fun collectIRouteRoot(sub: Class<out IRouteRoot>) {
+        Log.e("A libabaCollect", "collectIRouteRoot=$sub") classNameSet . add (sub.name)
+    }
+    @AndroidAopCollectMethod(
+        regex = "com.alibaba.android.arouter.routes.*?",
+        collectType = CollectType.DIRECT_EXTENDS
+    )
+    @JvmStatic
+    fun collectIProviderGroup(sub: Class<out IProviderGroup>) {
+        Log.e("AlibabaCollect", "collectIProviderGroup=$sub")
+        classNameSet.add(sub.name)
+    }
+
+    @AndroidAopCollectMethod(
+        regex = "com.alibaba.android.arouter.routes.*?",
+        collectType = CollectType.DIRECT_EXTENDS
+    )
+    @JvmStatic
+    fun collectIInterceptorGroup(sub: Class<out IInterceptorGroup>) {
+        Log.e("AlibabaCollect", "collectIInterceptorGroup=$sub")
+        classNameSet.add(sub.name)
+    }
+
+    fun getClassNameSet(): MutableSet<String> {
+        return classNameSet
+    }
+}
+

    The code above is the first thing that the ARouter plugin does, which is to search for these three categories

    @AndroidAopMatchClassMethod(
+    targetClassName = "com.alibaba.android.arouter.core.LogisticsCenter",
+    methodName = ["loadRouterMap"],
+    type = MatchType.SELF
+)
+class ARouterMatch : MatchClassMethod {
+    override fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any? {
+        val any = joinPoint.proceed()
+        val registerMethod = LogisticsCenter::class.java.getDeclaredMethod(
+            "register",
+            java.lang.String::class.java
+        ) registerMethod . isAccessible = true
+        val classNameSet = AlibabaCollect.getClassNameSet() classNameSet . forEach {
+            registerMethod.invoke(
+                null,
+                it
+            ) Log . e ("ARouterMatch", "registerMethod=$it")
+        } return any
+    }
+} 
+

    The above is the second thing done by the ARouter plug-in. ARouter.init(this) code calls LogisticsCenter.loadRouterMap() to register all three types. That's all.

    After these two steps of configuration, you can delete classpath "com.alibaba:arouter-register:?". It is worth noting that the above configuration is only effective if you turn off androidAop.debugMode = false. In addition, because ARouter can be used without plugins, you can still turn on debugMode after testing and turn it off when you build the release package (the latest version adds this sentence androidAop.debugMode.variantOnlyDebug = true without manual closing)

    Note

    Finally, when you call ARouter.init(this), you will see the log below, which means the code has taken effect! Finally, don't forget to do anti-obfuscation processing on com.alibaba.android.arouter.core.LogisticsCenter, because reflection is used above

    Load router map by arouter-auto-register plugin.
+

    In summary, in fact, the aspect can bring a lot of portability to our development, the key is to see how everyone uses it

    \ No newline at end of file diff --git a/Pointcut_return/index.html b/Pointcut_return/index.html new file mode 100644 index 00000000..3a383a88 --- /dev/null +++ b/Pointcut_return/index.html @@ -0,0 +1,42 @@ + Pointcut method return value - AndroidAOP
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    Pointcut method return value

    Ordinary function

    For @AndroidAopPointCut and @AndroidAopMatchClassMethod, both aspects have their aspect callback processing classes respectively

    • @AndroidAopPointCut corresponds to BasePointCut 
      interface BasePointCut<T : Annotation> {
+    fun invoke(joinPoint: ProceedJoinPoint, anno: T): Any?
+}
+
    • @AndroidAopMatchClassMethod corresponds to MatchClassMethod 
      interface MatchClassMethod {
+    fun invoke(joinPoint: ProceedJoinPoint, methodName: String): Any?
+}
+

    Note

    You can see that both invoke methods have a return value, which will replace the return value of the entry point method and will be automatically converted to the return type of the original method, but the following two types have no return value

    What is the return value

    • If the section method has a return value, the return value of invoke is the section method return value
    • In addition, if the section method has a return value, the return value type of invoke must be consistent with the section method return type
    • If the section method does not have a return value, it doesn’t matter what is returned

    @MyAnno
+public int numberAdd(int value1,int value2){
+        int result=value1+value2;
+        return result;
+        }
+
    public class MyAnnoCut implements BasePointCut<MyAnno> {
+    @Nullable
+    @Override
+    public Object invoke(@NonNull ProceedJoinPoint joinPoint, @NonNull MyAnno anno) {
+        int value1 = (int) joinPoint.args[0];
+        int value2 = (int) joinPoint.args[1];
+        int result = value1 * value2;
+        return result;
+    }
+}
+
    For example, the numberAdd method above returns the addition of two parameters. After entering the section, I want to change it to multiplication of two numbers, so what is the return value? I believe you already know it

    suspend function

    • BasePointCutSuspend inherits from BasePointCut 
      interface BasePointCutSuspend<T : Annotation> : BasePointCut<T> {
+    suspend fun invokeSuspend(joinPoint: ProceedJoinPointSuspend, anno: T)
+}
+
    • MatchClassMethodSuspend inherits from MatchClassMethod 
      interface MatchClassMethodSuspend : MatchClassMethod {
+    suspend fun invokeSuspend(joinPoint: ProceedJoinPointSuspend, methodName: String)
+    ...
+}
+

    Note

    For the suspend function of the cut point function, it is better to use the above two types. If you continue to use BasePointCut and MatchClassMethod, its return value must be joinPoint.proceed() The return value of the onReturn function. If you need to modify the return value, please see the following code:

    class MyAnnoCut5 : BasePointCutSuspend<MyAnno5> {
+    override suspend fun invokeSuspend(joinPoint: ProceedJoinPointSuspend, anno: MyAnno5) {
+        withContext(Dispatchers.IO) {
+//Modify the return value by setting OnSuspendReturnListener The return value of onReturn is the return value of the suspend point function
+            joinPoint.proceed(object : OnSuspendReturnListener {
+                override fun onReturn(proceedReturn: ProceedReturn): Any? {
+                    return (proceedReturn.proceed() as Int) + 100
+                }
+            })
+        }
+
+    }
+}
+

    Note

    Here onReturn The explanation is the same as What is the return value here

    \ No newline at end of file diff --git a/ProceedJoinPoint/index.html b/ProceedJoinPoint/index.html new file mode 100644 index 00000000..55a51dc9 --- /dev/null +++ b/ProceedJoinPoint/index.html @@ -0,0 +1 @@ + ProceedJoinPoint - AndroidAOP
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    ProceedJoinPoint

    Brief description

    Information related to the pointcut method, including pointcut method parameters, pointcut object, and continued execution of the original method logic, etc.

    proceed

    1. Execute the logic of the original method

    In this introduction, proceed() or proceed(args) of the ProceedJoinPoint object is used to execute the logic of the original method. The difference is:

    • proceed() does not pass parameters, indicating that the original incoming parameters are not changed
    • proceed(args) has parameters, indicating that the parameters passed in at the time are rewritten. Note that the number of parameters passed in and the type of each parameter must be consistent with the aspect method
    • If proceed is not called, the code in the interception aspect method will not be executed

    2. Execute the next aspect

    When there are multiple annotations or matching aspects for the same method, proceed means entering the next aspect. How to deal with it specifically?

    • When multiple facets are superimposed on a method, annotations take precedence over matching facets, and annotated facets are executed from top to bottom
    • The next facet will be executed only after proceed is called, and the code in the entry method will be called only after the last facet among multiple facets executes proceed
    • Calling proceed(args) in the previous facet can update the parameters passed in by the method, and the next facet will also get the parameters updated in the previous layer
    • When there is an asynchronous call proceed, the return value of the first asynchronous call proceed facet (that is, the return value of invoke) is the return value of the entry method; otherwise, if there is no asynchronous call proceed, the return value is the return value of the last facet

    3. ProceedJoinPointSuspend's proceed method

    ProceedJoinPointSuspend adds two new methods including OnSuspendReturnListener proceed method, two proceedIgnoreOther methods containing OnSuspendReturnListener2 are added

    • The logic of the two new proceed methods and the original proceed method is different from that of ordinary functions. The return value after calling is not the return value of the pointcut function, but the other logic is the same as the two points mentioned above
    • The OnSuspendReturnListener passed in by the two new proceed methods can get the return value of the pointcut function through the callback ProceedReturn, and the return value of the pointcut function can be modified through onReturn
    • The two new proceedIgnoreOther methods are to stop executing the code in the pointcut function and modify the return value of the pointcut function Click here for details ## getArgs

    All the parameters passed in when the pointcut method is called

    This is an introduction to the args of lambda expressions

    getOriginalArgs()

    Same as args, but with a different reference address. The object reference addresses in the array are the same. When there are multiple annotations or matching aspects in the same method, calling proceed(args) will change the reference address of args, or change the reference address in args. Through getOriginalArgs(), you can get the parameters when the pointcut method is first entered

    getTarget

    If the pointcut method is not a static method, target is the object where the pointcut method is located. If the pointcut method is a static method, target is null

    PS: If ProceedJoinPoint.target is null, it is because the injected method is static, usually Java This situation will occur in static methods of Kotlin and functions modified by @JvmStatic, top-level functions, and lamba expressions

    Here is an introduction to the target of lambda expressions

    getTargetMethod()

    Returns information related to the point-cut method, such as method name, parameter name, parameter type, return type, etc. ... You can check the specific information in the class returned by the method (AopMethod)

    Here is an introduction to the getTargetMethod of lambda expressions

    getTargetClass()

    Returns the Class<?> object of the class where the point-cut method is located

    \ No newline at end of file diff --git a/ProceedReturn/index.html b/ProceedReturn/index.html new file mode 100644 index 00000000..912d6b4b --- /dev/null +++ b/ProceedReturn/index.html @@ -0,0 +1 @@ + ProceedReturn - AndroidAOP
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    ProceedReturn

    proceed()

    Continue to execute the code of the return value code block. The return value is the actual return value of the suspend function. If you need to modify the passed parameters, you can still use ProceedJoinPoint to modify it

    \ No newline at end of file diff --git a/Suspend_cut/index.html b/Suspend_cut/index.html new file mode 100644 index 00000000..90a2b949 --- /dev/null +++ b/Suspend_cut/index.html @@ -0,0 +1,44 @@ + Suspend pointcut function - AndroidAOP
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    Suspend pointcut function

    When you use @AndroidAopPointCut and @AndroidAopMatchClassMethod, if the entry function is modified by suspend, you have two choices of aspect processing classes

    1. BasePointCut and MatchClassMethod that do not fully support suspend

    When you choose the first option, AndroidAOP will treat it as a normal function, but remember that the return value cannot be modified. It can only return the result of joinPoint.proceed(), so this method cannot modify the return result, for example:

    class MyAnnoCut3 : BasePointCut<MyAnno3> {
+    override fun invoke(joinPoint: ProceedJoinPoint, anno: MyAnno3): Any? {
+        Log.e("MyAnnoCut3", "====invoke=====")
+        return joinPoint.proceed()
+    }
+}
+

    Note

    Although the return result cannot be modified, you can call joinPoint.proceed() instead, and you can also modify the input parameters, such as joinPoint.proceed(1,2)

    2. BasePointCutSuspend and MatchClassMethodSuspend that support suspend

    When you choose the second option, you need to specify the thread in invokeSuspend, such as using the withContext function, for example

    class MyAnnoCut3 : BasePointCutSuspend<MyAnno3> {
+    override suspend fun invokeSuspend(joinPoint: ProceedJoinPointSuspend, anno: MyAnno3) {
+        withContext(Dispatchers.Main) {
+            ...
+            joinPoint.proceed(object : OnSuspendReturnListener {
+                override fun onReturn(proceedReturn: ProceedReturn): Any? {
+                    val result = proceedReturn.proceed()
+                    Log.e(
+                        "MyAnnoCut3",
+                        "====onReturn=====${proceedReturn.returnType},result=$result"
+                    )
+                    return (result as Int) + 100
+                }
+
+            })
+        }
+
+    }
+}
+

    Note

    1. If you do not use the withContext function, a ClassCastException exception may occur when the cut point function returns the result. The advantage of using this aspect processing class is that you can modify the return result (detailed introduction), and call other suspend functions
    2. Try to use joinPoint.proceed or joinPoint.proceedIgnoreOther in the last line of the withContext function

    Warning

    If the cut point function is not a suspend function, even if BasePointCutSuspend and MatchClassMethodSuspend are used, the invoke method will still be called back instead of the invokeSuspend method

    In addition, for ordinary aspect processing classes, proceed() is not called and returns directly, for example:

    class MyAnnoCut3 : BasePointCut<MyAnno3> {
+    override fun invoke(joinPoint: ProceedJoinPoint, anno: MyAnno3): Any? {
+        Log.e("MyAnnoCut3", "====invoke=====")
+        return null
+    }
+}
+
    The processing method of suspend is

    class MyAnnoCut3 : BasePointCutSuspend<MyAnno3> {
+    override suspend fun invokeSuspend(joinPoint: ProceedJoinPointSuspend, anno: MyAnno3) {
+        withContext(Dispatchers.Main) {
+            ...
+            joinPoint.proceedIgnoreOther(object : OnSuspendReturnListener2 {
+                override fun onReturn(proceedReturn: ProceedReturn2): Any? {
+                    Log.e("MyAnnoCut3", "====invokeSuspend=====") return null
+                }
+            })
+        }
+    }
+} 
+
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    Skip to content

    Extension Library

    Introduce dependent libraries

    dependencies {
+     //Optional 👇This package provides some common annotation aspects
+     implementation "io.github.FlyJingFish.AndroidAop:android-aop-extra:2.2.5"
+}
+
    dependencies {
+     //Optional 👇This package provides some common annotation aspects
+     implementation("io.github.FlyJingFish.AndroidAop:android-aop-extra:2.2.5")
+}
+

    This library has some built-in functional annotations for you to use directly.

    Annotation name Parameter description Function description
    @SingleClick value = interval of quick clicks, default 1000ms Click the annotation and add this annotation to make your method accessible only when clicked
    @DoubleClick value = maximum time between two clicks, default 300ms Double-click annotation, add this annotation to make your method enterable only when double-clicked
    @IOThread ThreadType = thread type Switch to the sub-thread operation. Adding this annotation can switch the code in your method to the sub-thread for execution
    @MainThread No parameters The operation of switching to the main thread. Adding this annotation can switch the code in your method to the main thread for execution
    @OnLifecycle* value = Lifecycle.Event Monitor life cycle operations. Adding this annotation allows the code in your method to be executed only during the corresponding life cycle
    @TryCatch value = a flag you customized Adding this annotation can wrap a layer of try catch code for your method
    @Permission* value = String array of permissions The operation of applying for permissions. Adding this annotation will enable your code to be executed only after obtaining permissions
    @Scheduled initialDelay = delayed start time
    interval = interval
    repeatCount = number of repetitions
    isOnMainThread = whether to be the main thread
    id = unique identifier    		 Scheduled tasks, add this annotation to make your method Executed every once in a while, call AndroidAop.shutdownNow(id) or AndroidAop.shutdown(id) to stop
    @Delay delay = delay time
    isOnMainThread = whether the main thread
    id = unique identifier    		 Delay task, add this annotation to delay the execution of your method for a period of time, call AndroidAop.shutdownNow(id) or AndroidAop .shutdown(id) can be canceled
    @CheckNetwork tag = custom tag
    toastText = toast prompt when there is no network
    invokeListener = whether to take over the check network logic    		 Check whether the network is available, adding this annotation will allow your method to enter only when there is a network
    @CustomIntercept value = a flag of a string array that you customized Custom interception, used with AndroidAop.setOnCustomInterceptListener, is a panacea

    ( * Supports suspend functions, returns results when conditions are met, and supports suspend functions whose return type is not Unit type)

    All examples of the above annotations are here,Also This

    Let me emphasize this @OnLifecycle

      1. The object to which the method added by @OnLifecycle must belong is a method directly or indirectly inherited from FragmentActivity or Fragment to be useful, or the object annotated method can also implement LifecycleOwner
      1. If the first point is not met, you can set the first parameter of the aspect method to the type of point 1, and you can also pass it in when calling the aspect method, for example:
      public class StaticClass {
+     @SingleClick(5000)
+     @OnLifecycle(Lifecycle.Event.ON_RESUME)
+     public static void onStaticPermission(MainActivity activity, int maxSelect, ThirdActivity.OnPhotoSelectListener back){
+         back.onBack();
+     }
+
+}
+

    Let’s focus on @TryCatch @Permission @CustomIntercept @CheckNetwork

    • @TryCatch Using this annotation you can set the following settings (not required) 

      AndroidAop.INSTANCE.setOnThrowableListener(new OnThrowableListener() {
+     @Nullable
+     @Override
+     public Object handleThrowable(@NonNull String flag, @Nullable Throwable throwable,TryCatch tryCatch) {
+         // TODO: 2023/11/11 If an exception occurs, you can handle it accordingly according to the flag you passed in at the time. If you need to rewrite the return value, just return at return
+         return 3;
+     }
+});
+

    • @Permission Use of this annotation must match the following settings (⚠This step is required, otherwise it will have no effect)Perfect usage inspiration 

      AndroidAop.INSTANCE.setOnPermissionsInterceptListener(new OnPermissionsInterceptListener() {
+     @SuppressLint("CheckResult")
+     @Override
+     public void requestPermission(@NonNull ProceedJoinPoint joinPoint, @NonNull Permission permission, @NonNull OnRequestPermissionListener call) {
+         Object target = joinPoint.getTarget();
+         if (target instanceof FragmentActivity){
+             RxPermissions rxPermissions = new RxPermissions((FragmentActivity) target);
+             rxPermissions.request(permission.value()).subscribe(call::onCall);
+         }else if (target instanceof Fragment){
+             RxPermissions rxPermissions = new RxPermissions((Fragment) target);
+             rxPermissions.request(permission.value()).subscribe(call::onCall);
+         }else{
+             // TODO: target is not FragmentActivity or Fragment, which means the method where the annotation is located is not among them. Please handle this situation yourself.
+             // Suggestion: The first parameter of the pointcut method can be set to FragmentActivity or Fragment, and then joinPoint.args[0] can be obtained
+         }
+     }
+});
+

    • @CustomIntercept To use this annotation you must match the following settings (⚠This step is required, otherwise what’s the point?) 

      AndroidAop.INSTANCE.setOnCustomInterceptListener(new OnCustomInterceptListener() {
+    @Nullable
+    @Override
+    public Object invoke(@NonNull ProceedJoinPoint joinPoint, @NonNull CustomIntercept customIntercept) {
+        // TODO: 2023/11/11 在此写你的逻辑 在合适的地方调用 joinPoint.proceed()，
+        //  joinPoint.proceed(args)可以修改方法传入的参数，如果需要改写返回值，则在 return 处返回即可
+
+        return null;
+    }
+});
+

    • @CheckNetwork Using this annotation you can match the following settings (not required) 
      AndroidAop.INSTANCE.setOnCheckNetworkListener(new OnCheckNetworkListener() {
+     @Nullable
+     @Override
+     public Object invoke(@NonNull ProceedJoinPoint joinPoint, @NonNull CheckNetwork checkNetwork, boolean availableNetwork) {
+         return null;
+     }
+});
+
      When using invokeListener, set it to true to enter the callback above. 
      @CheckNetwork(invokeListener = true)
+fun toSecondActivity(){
+     startActivity(Intent(this,SecondActivity::class.java))
+}
+
      In addition, the built-in Toast allows you to take over 
      AndroidAop.INSTANCE.setOnToastListener(new OnToastListener() {
+     @Override
+     public void onToast(@NonNull Context context, @NonNull CharSequence text, int duration) {
+
+     }
+});
+

    👆The above three monitors are best placed in your application

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Xa({viewport$:e}){if(!B("header.autohide"))return I(!1);let t=e.pipe(m(({offset:{y:n}})=>n),Be(2,1),m(([n,i])=>[nMath.abs(i-n.y)>100),m(([,[n]])=>n),K()),o=ze("search");return z([e,o]).pipe(m(([{offset:n},i])=>n.y>400&&!i),K(),v(n=>n?r:I(!1)),Q(!1))}function Kn(e,t){return C(()=>z([ge(e),Xa(t)])).pipe(m(([{height:r},o])=>({height:r,hidden:o})),K((r,o)=>r.height===o.height&&r.hidden===o.hidden),G(1))}function Yn(e,{header$:t,main$:r}){return C(()=>{let o=new g,n=o.pipe(Z(),ie(!0));o.pipe(ee("active"),He(t)).subscribe(([{active:a},{hidden:s}])=>{e.classList.toggle("md-header--shadow",a&&!s),e.hidden=s});let i=ue(P("[title]",e)).pipe(b(()=>B("content.tooltips")),ne(a=>Qn(a)));return r.subscribe(o),t.pipe(W(n),m(a=>$({ref:e},a)),Re(i.pipe(W(n))))})}function Za(e,{viewport$:t,header$:r}){return mr(e,{viewport$:t,header$:r}).pipe(m(({offset:{y:o}})=>{let{height:n}=ce(e);return{active:o>=n}}),ee("active"))}function Bn(e,t){return C(()=>{let r=new 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I(...e).pipe(ne(o=>h(o,"change").pipe(m(()=>o))),Q(e[r]),m(o=>({index:e.indexOf(o),color:{media:o.getAttribute("data-md-color-media"),scheme:o.getAttribute("data-md-color-scheme"),primary:o.getAttribute("data-md-color-primary"),accent:o.getAttribute("data-md-color-accent")}})),G(1))}function Jn(e){let t=P("input",e),r=x("meta",{name:"theme-color"});document.head.appendChild(r);let o=x("meta",{name:"color-scheme"});document.head.appendChild(o);let n=Pt("(prefers-color-scheme: light)");return C(()=>{let i=new g;return i.subscribe(a=>{if(document.body.setAttribute("data-md-color-switching",""),a.color.media==="(prefers-color-scheme)"){let s=matchMedia("(prefers-color-scheme: light)"),p=document.querySelector(s.matches?"[data-md-color-media='(prefers-color-scheme: light)']":"[data-md-color-media='(prefers-color-scheme: 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Jr=Mt(Br());function ts(e){e.setAttribute("data-md-copying","");let t=e.closest("[data-copy]"),r=t?t.getAttribute("data-copy"):e.innerText;return e.removeAttribute("data-md-copying"),r.trimEnd()}function Zn({alert$:e}){Jr.default.isSupported()&&new j(t=>{new Jr.default("[data-clipboard-target], [data-clipboard-text]",{text:r=>r.getAttribute("data-clipboard-text")||ts(R(r.getAttribute("data-clipboard-target")))}).on("success",r=>t.next(r))}).pipe(w(t=>{t.trigger.focus()}),m(()=>Ee("clipboard.copied"))).subscribe(e)}function ei(e,t){return e.protocol=t.protocol,e.hostname=t.hostname,e}function rs(e,t){let r=new Map;for(let o of P("url",e)){let n=R("loc",o),i=[ei(new URL(n.textContent),t)];r.set(`${i[0]}`,i);for(let a of P("[rel=alternate]",o)){let s=a.getAttribute("href");s!=null&&i.push(ei(new URL(s),t))}}return r}function ur(e){return un(new URL("sitemap.xml",e)).pipe(m(t=>rs(t,new URL(e))),de(()=>I(new Map)))}function os(e,t){if(!(e.target instanceof Element))return S;let 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g,n=on(e.parentElement).pipe(b(Boolean)),i=e.parentElement,a=R(":scope > :first-child",e),s=R(":scope > :last-child",e);ze("search").subscribe(l=>s.setAttribute("role",l?"list":"presentation")),o.pipe(re(r),Wr(t.pipe(Ae(jt)))).subscribe(([{items:l},{value:f}])=>{switch(l.length){case 0:a.textContent=f.length?Ee("search.result.none"):Ee("search.result.placeholder");break;case 1:a.textContent=Ee("search.result.one");break;default:let u=sr(l.length);a.textContent=Ee("search.result.other",u)}});let p=o.pipe(w(()=>s.innerHTML=""),v(({items:l})=>O(I(...l.slice(0,10)),I(...l.slice(10)).pipe(Be(4),Vr(n),v(([f])=>f)))),m(Mn),pe());return p.subscribe(l=>s.appendChild(l)),p.pipe(ne(l=>{let f=fe("details",l);return typeof f=="undefined"?S:h(f,"toggle").pipe(W(o),m(()=>f))})).subscribe(l=>{l.open===!1&&l.offsetTop<=i.scrollTop&&i.scrollTo({top:l.offsetTop})}),t.pipe(b(dr),m(({data:l})=>l)).pipe(w(l=>o.next(l)),_(()=>o.complete()),m(l=>$({ref:e},l)))}function ms(e,{query$:t}){return t.pipe(m(({value:r})=>{let o=ye();return o.hash="",r=r.replace(/\s+/g,"+").replace(/&/g,"%26").replace(/=/g,"%3D"),o.search=`q=${r}`,{url:o}}))}function mi(e,t){let r=new g,o=r.pipe(Z(),ie(!0));return r.subscribe(({url:n})=>{e.setAttribute("data-clipboard-text",e.href),e.href=`${n}`}),h(e,"click").pipe(W(o)).subscribe(n=>n.preventDefault()),ms(e,t).pipe(w(n=>r.next(n)),_(()=>r.complete()),m(n=>$({ref:e},n)))}function fi(e,{worker$:t,keyboard$:r}){let o=new g,n=Se("search-query"),i=O(h(n,"keydown"),h(n,"focus")).pipe(ve(se),m(()=>n.value),K());return o.pipe(He(i),m(([{suggest:s},p])=>{let c=p.split(/([\s-]+)/);if(s!=null&&s.length&&c[c.length-1]){let l=s[s.length-1];l.startsWith(c[c.length-1])&&(c[c.length-1]=l)}else c.length=0;return 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n){let{childNodes:c}=x("span",null,p);s.replaceWith(...Array.from(c))}return{ref:e,nodes:n}}))}function fs(e,{viewport$:t,main$:r}){let o=e.closest(".md-grid"),n=o.offsetTop-o.parentElement.offsetTop;return z([r,t]).pipe(m(([{offset:i,height:a},{offset:{y:s}}])=>(a=a+Math.min(n,Math.max(0,s-i))-n,{height:a,locked:s>=i+n})),K((i,a)=>i.height===a.height&&i.locked===a.locked))}function Zr(e,o){var n=o,{header$:t}=n,r=so(n,["header$"]);let i=R(".md-sidebar__scrollwrap",e),{y:a}=Ve(i);return C(()=>{let s=new g,p=s.pipe(Z(),ie(!0)),c=s.pipe(Me(0,me));return c.pipe(re(t)).subscribe({next([{height:l},{height:f}]){i.style.height=`${l-2*a}px`,e.style.top=`${f}px`},complete(){i.style.height="",e.style.top=""}}),c.pipe(Ae()).subscribe(()=>{for(let l of P(".md-nav__link--active[href]",e)){if(!l.clientHeight)continue;let f=l.closest(".md-sidebar__scrollwrap");if(typeof f!="undefined"){let u=l.offsetTop-f.offsetTop,{height:d}=ce(f);f.scrollTo({top:u-d/2})}}}),ue(P("label[tabindex]",e)).pipe(ne(l=>h(l,"click").pipe(ve(se),m(()=>l),W(p)))).subscribe(l=>{let f=R(`[id="${l.htmlFor}"]`);R(`[aria-labelledby="${l.id}"]`).setAttribute("aria-expanded",`${f.checked}`)}),fs(e,r).pipe(w(l=>s.next(l)),_(()=>s.complete()),m(l=>$({ref:e},l)))})}function hi(e,t){if(typeof t!="undefined"){let r=`https://api.github.com/repos/${e}/${t}`;return st(je(`${r}/releases/latest`).pipe(de(()=>S),m(o=>({version:o.tag_name})),De({})),je(r).pipe(de(()=>S),m(o=>({stars:o.stargazers_count,forks:o.forks_count})),De({}))).pipe(m(([o,n])=>$($({},o),n)))}else{let r=`https://api.github.com/users/${e}`;return je(r).pipe(m(o=>({repositories:o.public_repos})),De({}))}}function bi(e,t){let r=`https://${e}/api/v4/projects/${encodeURIComponent(t)}`;return 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"src/templates/assets/javascripts/polyfills/index.ts"], + "sourcesContent": ["(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? factory() :\n typeof define === 'function' && define.amd ? define(factory) :\n (factory());\n}(this, (function () { 'use strict';\n\n /**\n * Applies the :focus-visible polyfill at the given scope.\n * A scope in this case is either the top-level Document or a Shadow Root.\n *\n * @param {(Document|ShadowRoot)} scope\n * @see https://github.com/WICG/focus-visible\n */\n function applyFocusVisiblePolyfill(scope) {\n var hadKeyboardEvent = true;\n var hadFocusVisibleRecently = false;\n var hadFocusVisibleRecentlyTimeout = null;\n\n var inputTypesAllowlist = {\n text: true,\n search: true,\n url: true,\n tel: true,\n email: true,\n password: true,\n number: true,\n date: true,\n month: true,\n week: true,\n time: true,\n datetime: true,\n 'datetime-local': true\n };\n\n /**\n * Helper function for legacy browsers and iframes which sometimes focus\n * elements like document, body, and non-interactive SVG.\n * @param {Element} el\n */\n function isValidFocusTarget(el) {\n if (\n el &&\n el !== document &&\n el.nodeName !== 'HTML' &&\n el.nodeName !== 'BODY' &&\n 'classList' in el &&\n 'contains' in el.classList\n ) {\n return true;\n }\n return false;\n }\n\n /**\n * Computes whether the given element should automatically trigger the\n * `focus-visible` class being added, i.e. whether it should always match\n * `:focus-visible` when focused.\n * @param {Element} el\n * @return {boolean}\n */\n function focusTriggersKeyboardModality(el) {\n var type = el.type;\n var tagName = el.tagName;\n\n if (tagName === 'INPUT' && inputTypesAllowlist[type] && !el.readOnly) {\n return true;\n }\n\n if (tagName === 'TEXTAREA' && !el.readOnly) {\n return true;\n }\n\n if (el.isContentEditable) {\n return true;\n }\n\n return false;\n }\n\n /**\n * Add the `focus-visible` class to the given element if it was not added by\n * the author.\n * @param {Element} el\n */\n function addFocusVisibleClass(el) {\n if (el.classList.contains('focus-visible')) {\n return;\n }\n el.classList.add('focus-visible');\n el.setAttribute('data-focus-visible-added', '');\n }\n\n /**\n * Remove the `focus-visible` class from the given element if it was not\n * originally added by the author.\n * @param {Element} el\n */\n function removeFocusVisibleClass(el) {\n if (!el.hasAttribute('data-focus-visible-added')) {\n return;\n }\n el.classList.remove('focus-visible');\n el.removeAttribute('data-focus-visible-added');\n }\n\n /**\n * If the most recent user interaction was via the keyboard;\n * and the key press did not include a meta, alt/option, or control key;\n * then the modality is keyboard. Otherwise, the modality is not keyboard.\n * Apply `focus-visible` to any current active element and keep track\n * of our keyboard modality state with `hadKeyboardEvent`.\n * @param {KeyboardEvent} e\n */\n function onKeyDown(e) {\n if (e.metaKey || e.altKey || e.ctrlKey) {\n return;\n }\n\n if (isValidFocusTarget(scope.activeElement)) {\n addFocusVisibleClass(scope.activeElement);\n }\n\n hadKeyboardEvent = true;\n }\n\n /**\n * If at any point a user clicks with a pointing device, ensure that we change\n * the modality away from keyboard.\n * This avoids the situation where a user presses a key on an already focused\n * element, and then clicks on a different element, focusing it with a\n * pointing device, while we still think we're in keyboard modality.\n * @param {Event} e\n */\n function onPointerDown(e) {\n hadKeyboardEvent = false;\n }\n\n /**\n * On `focus`, add the `focus-visible` class to the target if:\n * - the target received focus as a result of keyboard navigation, or\n * - the event target is an element that will likely require interaction\n * via the keyboard (e.g. a text box)\n * @param {Event} e\n */\n function onFocus(e) {\n // Prevent IE from focusing the document or HTML element.\n if (!isValidFocusTarget(e.target)) {\n return;\n }\n\n if (hadKeyboardEvent || focusTriggersKeyboardModality(e.target)) {\n addFocusVisibleClass(e.target);\n }\n }\n\n /**\n * On `blur`, remove the `focus-visible` class from the target.\n * @param {Event} e\n */\n function onBlur(e) {\n if (!isValidFocusTarget(e.target)) {\n return;\n }\n\n if (\n e.target.classList.contains('focus-visible') ||\n e.target.hasAttribute('data-focus-visible-added')\n ) {\n // To detect a tab/window switch, we look for a blur event followed\n // rapidly by a visibility change.\n // If we don't see a visibility change within 100ms, it's probably a\n // regular focus change.\n hadFocusVisibleRecently = true;\n window.clearTimeout(hadFocusVisibleRecentlyTimeout);\n hadFocusVisibleRecentlyTimeout = window.setTimeout(function() {\n hadFocusVisibleRecently = false;\n }, 100);\n removeFocusVisibleClass(e.target);\n }\n }\n\n /**\n * If the user changes tabs, keep track of whether or not the previously\n * focused element had .focus-visible.\n * @param {Event} e\n */\n function onVisibilityChange(e) {\n if (document.visibilityState === 'hidden') {\n // If the tab becomes active again, the browser will handle calling focus\n // on the element (Safari actually calls it twice).\n // If this tab change caused a blur on an element with focus-visible,\n // re-apply the class when the user switches back to the tab.\n if (hadFocusVisibleRecently) {\n hadKeyboardEvent = true;\n }\n addInitialPointerMoveListeners();\n }\n }\n\n /**\n * Add a group of listeners to detect usage of any pointing devices.\n * These listeners will be added when the polyfill first loads, and anytime\n * the window is blurred, so that they are active when the window regains\n * focus.\n */\n function addInitialPointerMoveListeners() {\n document.addEventListener('mousemove', onInitialPointerMove);\n document.addEventListener('mousedown', onInitialPointerMove);\n document.addEventListener('mouseup', onInitialPointerMove);\n document.addEventListener('pointermove', onInitialPointerMove);\n document.addEventListener('pointerdown', onInitialPointerMove);\n document.addEventListener('pointerup', onInitialPointerMove);\n document.addEventListener('touchmove', onInitialPointerMove);\n document.addEventListener('touchstart', onInitialPointerMove);\n document.addEventListener('touchend', onInitialPointerMove);\n }\n\n function removeInitialPointerMoveListeners() {\n document.removeEventListener('mousemove', onInitialPointerMove);\n document.removeEventListener('mousedown', onInitialPointerMove);\n document.removeEventListener('mouseup', onInitialPointerMove);\n document.removeEventListener('pointermove', onInitialPointerMove);\n document.removeEventListener('pointerdown', onInitialPointerMove);\n document.removeEventListener('pointerup', onInitialPointerMove);\n document.removeEventListener('touchmove', onInitialPointerMove);\n document.removeEventListener('touchstart', onInitialPointerMove);\n document.removeEventListener('touchend', onInitialPointerMove);\n }\n\n /**\n * When the polfyill first loads, assume the user is in keyboard modality.\n * If any event is received from a pointing device (e.g. mouse, pointer,\n * touch), turn off keyboard modality.\n * This accounts for situations where focus enters the page from the URL bar.\n * @param {Event} e\n */\n function onInitialPointerMove(e) {\n // Work around a Safari quirk that fires a mousemove on whenever the\n // window blurs, even if you're tabbing out of the page. \u00AF\\_(\u30C4)_/\u00AF\n if (e.target.nodeName && e.target.nodeName.toLowerCase() === 'html') {\n return;\n }\n\n hadKeyboardEvent = false;\n removeInitialPointerMoveListeners();\n }\n\n // For some kinds of state, we are interested in changes at the global scope\n // only. For example, global pointer input, global key presses and global\n // visibility change should affect the state at every scope:\n document.addEventListener('keydown', onKeyDown, true);\n document.addEventListener('mousedown', onPointerDown, true);\n document.addEventListener('pointerdown', onPointerDown, true);\n document.addEventListener('touchstart', onPointerDown, true);\n document.addEventListener('visibilitychange', onVisibilityChange, true);\n\n addInitialPointerMoveListeners();\n\n // For focus and blur, we specifically care about state changes in the local\n // scope. This is because focus / blur events that originate from within a\n // shadow root are not re-dispatched from the host element if it was already\n // the active element in its own scope:\n scope.addEventListener('focus', onFocus, true);\n scope.addEventListener('blur', onBlur, true);\n\n // We detect that a node is a ShadowRoot by ensuring that it is a\n // DocumentFragment and also has a host property. This check covers native\n // implementation and polyfill implementation transparently. If we only cared\n // about the native implementation, we could just check if the scope was\n // an instance of a ShadowRoot.\n if (scope.nodeType === Node.DOCUMENT_FRAGMENT_NODE && scope.host) {\n // Since a ShadowRoot is a special kind of DocumentFragment, it does not\n // have a root element to add a class to. So, we add this attribute to the\n // host element instead:\n scope.host.setAttribute('data-js-focus-visible', '');\n } else if (scope.nodeType === Node.DOCUMENT_NODE) {\n document.documentElement.classList.add('js-focus-visible');\n document.documentElement.setAttribute('data-js-focus-visible', '');\n }\n }\n\n // It is important to wrap all references to global window and document in\n // these checks to support server-side rendering use cases\n // @see https://github.com/WICG/focus-visible/issues/199\n if (typeof window !== 'undefined' && typeof document !== 'undefined') {\n // Make the polyfill helper globally available. This can be used as a signal\n // to interested libraries that wish to coordinate with the polyfill for e.g.,\n // applying the polyfill to a shadow root:\n window.applyFocusVisiblePolyfill = applyFocusVisiblePolyfill;\n\n // Notify interested libraries of the polyfill's presence, in case the\n // polyfill was loaded lazily:\n var event;\n\n try {\n event = new CustomEvent('focus-visible-polyfill-ready');\n } catch (error) {\n // IE11 does not support using CustomEvent as a constructor directly:\n event = document.createEvent('CustomEvent');\n event.initCustomEvent('focus-visible-polyfill-ready', false, false, {});\n }\n\n window.dispatchEvent(event);\n }\n\n if (typeof document !== 'undefined') {\n // Apply the polyfill to the global document, so that no JavaScript\n // coordination is required to use the polyfill in the top-level document:\n applyFocusVisiblePolyfill(document);\n }\n\n})));\n", "/*!\n * escape-html\n * Copyright(c) 2012-2013 TJ Holowaychuk\n * Copyright(c) 2015 Andreas Lubbe\n * Copyright(c) 2015 Tiancheng \"Timothy\" Gu\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module variables.\n * @private\n */\n\nvar matchHtmlRegExp = /[\"'&<>]/;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = escapeHtml;\n\n/**\n * Escape special characters in the given string of html.\n *\n * @param {string} string The string to escape for inserting into HTML\n * @return {string}\n * @public\n */\n\nfunction escapeHtml(string) {\n var str = '' + string;\n var match = matchHtmlRegExp.exec(str);\n\n if (!match) {\n return str;\n }\n\n var escape;\n var html = '';\n var index = 0;\n var lastIndex = 0;\n\n for (index = match.index; index < str.length; index++) {\n switch (str.charCodeAt(index)) {\n case 34: // \"\n escape = '"';\n break;\n case 38: // &\n escape = '&';\n break;\n case 39: // '\n escape = ''';\n break;\n case 60: // <\n escape = '<';\n break;\n case 62: // >\n escape = '>';\n break;\n default:\n continue;\n }\n\n if (lastIndex !== index) {\n html += str.substring(lastIndex, index);\n }\n\n lastIndex = index + 1;\n html += escape;\n }\n\n return lastIndex !== index\n ? html + str.substring(lastIndex, index)\n : html;\n}\n", "/*!\n * clipboard.js v2.0.11\n * https://clipboardjs.com/\n *\n * Licensed MIT \u00A9 Zeno Rocha\n */\n(function webpackUniversalModuleDefinition(root, factory) {\n\tif(typeof exports === 'object' && typeof module === 'object')\n\t\tmodule.exports = factory();\n\telse if(typeof define === 'function' && define.amd)\n\t\tdefine([], factory);\n\telse if(typeof exports === 'object')\n\t\texports[\"ClipboardJS\"] = factory();\n\telse\n\t\troot[\"ClipboardJS\"] = factory();\n})(this, function() {\nreturn /******/ (function() { // webpackBootstrap\n/******/ \tvar __webpack_modules__ = ({\n\n/***/ 686:\n/***/ (function(__unused_webpack_module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n\n// EXPORTS\n__webpack_require__.d(__webpack_exports__, {\n \"default\": function() { return /* binding */ clipboard; }\n});\n\n// EXTERNAL MODULE: ./node_modules/tiny-emitter/index.js\nvar tiny_emitter = __webpack_require__(279);\nvar tiny_emitter_default = /*#__PURE__*/__webpack_require__.n(tiny_emitter);\n// EXTERNAL MODULE: ./node_modules/good-listener/src/listen.js\nvar listen = __webpack_require__(370);\nvar listen_default = /*#__PURE__*/__webpack_require__.n(listen);\n// EXTERNAL MODULE: ./node_modules/select/src/select.js\nvar src_select = __webpack_require__(817);\nvar select_default = /*#__PURE__*/__webpack_require__.n(src_select);\n;// CONCATENATED MODULE: ./src/common/command.js\n/**\n * Executes a given operation type.\n * @param {String} type\n * @return {Boolean}\n */\nfunction command(type) {\n try {\n return document.execCommand(type);\n } catch (err) {\n return false;\n }\n}\n;// CONCATENATED MODULE: ./src/actions/cut.js\n\n\n/**\n * Cut action wrapper.\n * @param {String|HTMLElement} target\n * @return {String}\n */\n\nvar ClipboardActionCut = function ClipboardActionCut(target) {\n var selectedText = select_default()(target);\n command('cut');\n return selectedText;\n};\n\n/* harmony default export */ var actions_cut = (ClipboardActionCut);\n;// CONCATENATED MODULE: ./src/common/create-fake-element.js\n/**\n * Creates a fake textarea element with a value.\n * @param {String} value\n * @return {HTMLElement}\n */\nfunction createFakeElement(value) {\n var isRTL = document.documentElement.getAttribute('dir') === 'rtl';\n var fakeElement = document.createElement('textarea'); // Prevent zooming on iOS\n\n fakeElement.style.fontSize = '12pt'; // Reset box model\n\n fakeElement.style.border = '0';\n fakeElement.style.padding = '0';\n fakeElement.style.margin = '0'; // Move element out of screen horizontally\n\n fakeElement.style.position = 'absolute';\n fakeElement.style[isRTL ? 'right' : 'left'] = '-9999px'; // Move element to the same position vertically\n\n var yPosition = window.pageYOffset || document.documentElement.scrollTop;\n fakeElement.style.top = \"\".concat(yPosition, \"px\");\n fakeElement.setAttribute('readonly', '');\n fakeElement.value = value;\n return fakeElement;\n}\n;// CONCATENATED MODULE: ./src/actions/copy.js\n\n\n\n/**\n * Create fake copy action wrapper using a fake element.\n * @param {String} target\n * @param {Object} options\n * @return {String}\n */\n\nvar fakeCopyAction = function fakeCopyAction(value, options) {\n var fakeElement = createFakeElement(value);\n options.container.appendChild(fakeElement);\n var selectedText = select_default()(fakeElement);\n command('copy');\n fakeElement.remove();\n return selectedText;\n};\n/**\n * Copy action wrapper.\n * @param {String|HTMLElement} target\n * @param {Object} options\n * @return {String}\n */\n\n\nvar ClipboardActionCopy = function ClipboardActionCopy(target) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {\n container: document.body\n };\n var selectedText = '';\n\n if (typeof target === 'string') {\n selectedText = fakeCopyAction(target, options);\n } else if (target instanceof HTMLInputElement && !['text', 'search', 'url', 'tel', 'password'].includes(target === null || target === void 0 ? void 0 : target.type)) {\n // If input type doesn't support `setSelectionRange`. Simulate it. https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement/setSelectionRange\n selectedText = fakeCopyAction(target.value, options);\n } else {\n selectedText = select_default()(target);\n command('copy');\n }\n\n return selectedText;\n};\n\n/* harmony default export */ var actions_copy = (ClipboardActionCopy);\n;// CONCATENATED MODULE: ./src/actions/default.js\nfunction _typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\n\n\n/**\n * Inner function which performs selection from either `text` or `target`\n * properties and then executes copy or cut operations.\n * @param {Object} options\n */\n\nvar ClipboardActionDefault = function ClipboardActionDefault() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n // Defines base properties passed from constructor.\n var _options$action = options.action,\n action = _options$action === void 0 ? 'copy' : _options$action,\n container = options.container,\n target = options.target,\n text = options.text; // Sets the `action` to be performed which can be either 'copy' or 'cut'.\n\n if (action !== 'copy' && action !== 'cut') {\n throw new Error('Invalid \"action\" value, use either \"copy\" or \"cut\"');\n } // Sets the `target` property using an element that will be have its content copied.\n\n\n if (target !== undefined) {\n if (target && _typeof(target) === 'object' && target.nodeType === 1) {\n if (action === 'copy' && target.hasAttribute('disabled')) {\n throw new Error('Invalid \"target\" attribute. Please use \"readonly\" instead of \"disabled\" attribute');\n }\n\n if (action === 'cut' && (target.hasAttribute('readonly') || target.hasAttribute('disabled'))) {\n throw new Error('Invalid \"target\" attribute. You can\\'t cut text from elements with \"readonly\" or \"disabled\" attributes');\n }\n } else {\n throw new Error('Invalid \"target\" value, use a valid Element');\n }\n } // Define selection strategy based on `text` property.\n\n\n if (text) {\n return actions_copy(text, {\n container: container\n });\n } // Defines which selection strategy based on `target` property.\n\n\n if (target) {\n return action === 'cut' ? actions_cut(target) : actions_copy(target, {\n container: container\n });\n }\n};\n\n/* harmony default export */ var actions_default = (ClipboardActionDefault);\n;// CONCATENATED MODULE: ./src/clipboard.js\nfunction clipboard_typeof(obj) { \"@babel/helpers - typeof\"; if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { clipboard_typeof = function _typeof(obj) { return typeof obj; }; } else { clipboard_typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return clipboard_typeof(obj); }\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction _inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function\"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }\n\nfunction _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }\n\nfunction _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }\n\nfunction _possibleConstructorReturn(self, call) { if (call && (clipboard_typeof(call) === \"object\" || typeof call === \"function\")) { return call; } return _assertThisInitialized(self); }\n\nfunction _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction _isNativeReflectConstruct() { if (typeof Reflect === \"undefined\" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === \"function\") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }\n\nfunction _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }\n\n\n\n\n\n\n/**\n * Helper function to retrieve attribute value.\n * @param {String} suffix\n * @param {Element} element\n */\n\nfunction getAttributeValue(suffix, element) {\n var attribute = \"data-clipboard-\".concat(suffix);\n\n if (!element.hasAttribute(attribute)) {\n return;\n }\n\n return element.getAttribute(attribute);\n}\n/**\n * Base class which takes one or more elements, adds event listeners to them,\n * and instantiates a new `ClipboardAction` on each click.\n */\n\n\nvar Clipboard = /*#__PURE__*/function (_Emitter) {\n _inherits(Clipboard, _Emitter);\n\n var _super = _createSuper(Clipboard);\n\n /**\n * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n * @param {Object} options\n */\n function Clipboard(trigger, options) {\n var _this;\n\n _classCallCheck(this, Clipboard);\n\n _this = _super.call(this);\n\n _this.resolveOptions(options);\n\n _this.listenClick(trigger);\n\n return _this;\n }\n /**\n * Defines if attributes would be resolved using internal setter functions\n * or custom functions that were passed in the constructor.\n * @param {Object} options\n */\n\n\n _createClass(Clipboard, [{\n key: \"resolveOptions\",\n value: function resolveOptions() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n this.action = typeof options.action === 'function' ? options.action : this.defaultAction;\n this.target = typeof options.target === 'function' ? options.target : this.defaultTarget;\n this.text = typeof options.text === 'function' ? options.text : this.defaultText;\n this.container = clipboard_typeof(options.container) === 'object' ? options.container : document.body;\n }\n /**\n * Adds a click event listener to the passed trigger.\n * @param {String|HTMLElement|HTMLCollection|NodeList} trigger\n */\n\n }, {\n key: \"listenClick\",\n value: function listenClick(trigger) {\n var _this2 = this;\n\n this.listener = listen_default()(trigger, 'click', function (e) {\n return _this2.onClick(e);\n });\n }\n /**\n * Defines a new `ClipboardAction` on each click event.\n * @param {Event} e\n */\n\n }, {\n key: \"onClick\",\n value: function onClick(e) {\n var trigger = e.delegateTarget || e.currentTarget;\n var action = this.action(trigger) || 'copy';\n var text = actions_default({\n action: action,\n container: this.container,\n target: this.target(trigger),\n text: this.text(trigger)\n }); // Fires an event based on the copy operation result.\n\n this.emit(text ? 'success' : 'error', {\n action: action,\n text: text,\n trigger: trigger,\n clearSelection: function clearSelection() {\n if (trigger) {\n trigger.focus();\n }\n\n window.getSelection().removeAllRanges();\n }\n });\n }\n /**\n * Default `action` lookup function.\n * @param {Element} trigger\n */\n\n }, {\n key: \"defaultAction\",\n value: function defaultAction(trigger) {\n return getAttributeValue('action', trigger);\n }\n /**\n * Default `target` lookup function.\n * @param {Element} trigger\n */\n\n }, {\n key: \"defaultTarget\",\n value: function defaultTarget(trigger) {\n var selector = getAttributeValue('target', trigger);\n\n if (selector) {\n return document.querySelector(selector);\n }\n }\n /**\n * Allow fire programmatically a copy action\n * @param {String|HTMLElement} target\n * @param {Object} options\n * @returns Text copied.\n */\n\n }, {\n key: \"defaultText\",\n\n /**\n * Default `text` lookup function.\n * @param {Element} trigger\n */\n value: function defaultText(trigger) {\n return getAttributeValue('text', trigger);\n }\n /**\n * Destroy lifecycle.\n */\n\n }, {\n key: \"destroy\",\n value: function destroy() {\n this.listener.destroy();\n }\n }], [{\n key: \"copy\",\n value: function copy(target) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {\n container: document.body\n };\n return actions_copy(target, options);\n }\n /**\n * Allow fire programmatically a cut action\n * @param {String|HTMLElement} target\n * @returns Text cutted.\n */\n\n }, {\n key: \"cut\",\n value: function cut(target) {\n return actions_cut(target);\n }\n /**\n * Returns the support of the given action, or all actions if no action is\n * given.\n * @param {String} [action]\n */\n\n }, {\n key: \"isSupported\",\n value: function isSupported() {\n var action = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : ['copy', 'cut'];\n var actions = typeof action === 'string' ? [action] : action;\n var support = !!document.queryCommandSupported;\n actions.forEach(function (action) {\n support = support && !!document.queryCommandSupported(action);\n });\n return support;\n }\n }]);\n\n return Clipboard;\n}((tiny_emitter_default()));\n\n/* harmony default export */ var clipboard = (Clipboard);\n\n/***/ }),\n\n/***/ 828:\n/***/ (function(module) {\n\nvar DOCUMENT_NODE_TYPE = 9;\n\n/**\n * A polyfill for Element.matches()\n */\nif (typeof Element !== 'undefined' && !Element.prototype.matches) {\n var proto = Element.prototype;\n\n proto.matches = proto.matchesSelector ||\n proto.mozMatchesSelector ||\n proto.msMatchesSelector ||\n proto.oMatchesSelector ||\n proto.webkitMatchesSelector;\n}\n\n/**\n * Finds the closest parent that matches a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @return {Function}\n */\nfunction closest (element, selector) {\n while (element && element.nodeType !== DOCUMENT_NODE_TYPE) {\n if (typeof element.matches === 'function' &&\n element.matches(selector)) {\n return element;\n }\n element = element.parentNode;\n }\n}\n\nmodule.exports = closest;\n\n\n/***/ }),\n\n/***/ 438:\n/***/ (function(module, __unused_webpack_exports, __webpack_require__) {\n\nvar closest = __webpack_require__(828);\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction _delegate(element, selector, type, callback, useCapture) {\n var listenerFn = listener.apply(this, arguments);\n\n element.addEventListener(type, listenerFn, useCapture);\n\n return {\n destroy: function() {\n element.removeEventListener(type, listenerFn, useCapture);\n }\n }\n}\n\n/**\n * Delegates event to a selector.\n *\n * @param {Element|String|Array} [elements]\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @param {Boolean} useCapture\n * @return {Object}\n */\nfunction delegate(elements, selector, type, callback, useCapture) {\n // Handle the regular Element usage\n if (typeof elements.addEventListener === 'function') {\n return _delegate.apply(null, arguments);\n }\n\n // Handle Element-less usage, it defaults to global delegation\n if (typeof type === 'function') {\n // Use `document` as the first parameter, then apply arguments\n // This is a short way to .unshift `arguments` without running into deoptimizations\n return _delegate.bind(null, document).apply(null, arguments);\n }\n\n // Handle Selector-based usage\n if (typeof elements === 'string') {\n elements = document.querySelectorAll(elements);\n }\n\n // Handle Array-like based usage\n return Array.prototype.map.call(elements, function (element) {\n return _delegate(element, selector, type, callback, useCapture);\n });\n}\n\n/**\n * Finds closest match and invokes callback.\n *\n * @param {Element} element\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Function}\n */\nfunction listener(element, selector, type, callback) {\n return function(e) {\n e.delegateTarget = closest(e.target, selector);\n\n if (e.delegateTarget) {\n callback.call(element, e);\n }\n }\n}\n\nmodule.exports = delegate;\n\n\n/***/ }),\n\n/***/ 879:\n/***/ (function(__unused_webpack_module, exports) {\n\n/**\n * Check if argument is a HTML element.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.node = function(value) {\n return value !== undefined\n && value instanceof HTMLElement\n && value.nodeType === 1;\n};\n\n/**\n * Check if argument is a list of HTML elements.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.nodeList = function(value) {\n var type = Object.prototype.toString.call(value);\n\n return value !== undefined\n && (type === '[object NodeList]' || type === '[object HTMLCollection]')\n && ('length' in value)\n && (value.length === 0 || exports.node(value[0]));\n};\n\n/**\n * Check if argument is a string.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.string = function(value) {\n return typeof value === 'string'\n || value instanceof String;\n};\n\n/**\n * Check if argument is a function.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nexports.fn = function(value) {\n var type = Object.prototype.toString.call(value);\n\n return type === '[object Function]';\n};\n\n\n/***/ }),\n\n/***/ 370:\n/***/ (function(module, __unused_webpack_exports, __webpack_require__) {\n\nvar is = __webpack_require__(879);\nvar delegate = __webpack_require__(438);\n\n/**\n * Validates all params and calls the right\n * listener function based on its target type.\n *\n * @param {String|HTMLElement|HTMLCollection|NodeList} target\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listen(target, type, callback) {\n if (!target && !type && !callback) {\n throw new Error('Missing required arguments');\n }\n\n if (!is.string(type)) {\n throw new TypeError('Second argument must be a String');\n }\n\n if (!is.fn(callback)) {\n throw new TypeError('Third argument must be a Function');\n }\n\n if (is.node(target)) {\n return listenNode(target, type, callback);\n }\n else if (is.nodeList(target)) {\n return listenNodeList(target, type, callback);\n }\n else if (is.string(target)) {\n return listenSelector(target, type, callback);\n }\n else {\n throw new TypeError('First argument must be a String, HTMLElement, HTMLCollection, or NodeList');\n }\n}\n\n/**\n * Adds an event listener to a HTML element\n * and returns a remove listener function.\n *\n * @param {HTMLElement} node\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNode(node, type, callback) {\n node.addEventListener(type, callback);\n\n return {\n destroy: function() {\n node.removeEventListener(type, callback);\n }\n }\n}\n\n/**\n * Add an event listener to a list of HTML elements\n * and returns a remove listener function.\n *\n * @param {NodeList|HTMLCollection} nodeList\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenNodeList(nodeList, type, callback) {\n Array.prototype.forEach.call(nodeList, function(node) {\n node.addEventListener(type, callback);\n });\n\n return {\n destroy: function() {\n Array.prototype.forEach.call(nodeList, function(node) {\n node.removeEventListener(type, callback);\n });\n }\n }\n}\n\n/**\n * Add an event listener to a selector\n * and returns a remove listener function.\n *\n * @param {String} selector\n * @param {String} type\n * @param {Function} callback\n * @return {Object}\n */\nfunction listenSelector(selector, type, callback) {\n return delegate(document.body, selector, type, callback);\n}\n\nmodule.exports = listen;\n\n\n/***/ }),\n\n/***/ 817:\n/***/ (function(module) {\n\nfunction select(element) {\n var selectedText;\n\n if (element.nodeName === 'SELECT') {\n element.focus();\n\n selectedText = element.value;\n }\n else if (element.nodeName === 'INPUT' || element.nodeName === 'TEXTAREA') {\n var isReadOnly = element.hasAttribute('readonly');\n\n if (!isReadOnly) {\n element.setAttribute('readonly', '');\n }\n\n element.select();\n element.setSelectionRange(0, element.value.length);\n\n if (!isReadOnly) {\n element.removeAttribute('readonly');\n }\n\n selectedText = element.value;\n }\n else {\n if (element.hasAttribute('contenteditable')) {\n element.focus();\n }\n\n var selection = window.getSelection();\n var range = document.createRange();\n\n range.selectNodeContents(element);\n selection.removeAllRanges();\n selection.addRange(range);\n\n selectedText = selection.toString();\n }\n\n return selectedText;\n}\n\nmodule.exports = select;\n\n\n/***/ }),\n\n/***/ 279:\n/***/ (function(module) {\n\nfunction E () {\n // Keep this empty so it's easier to inherit from\n // (via https://github.com/lipsmack from https://github.com/scottcorgan/tiny-emitter/issues/3)\n}\n\nE.prototype = {\n on: function (name, callback, ctx) {\n var e = this.e || (this.e = {});\n\n (e[name] || (e[name] = [])).push({\n fn: callback,\n ctx: ctx\n });\n\n return this;\n },\n\n once: function (name, callback, ctx) {\n var self = this;\n function listener () {\n self.off(name, listener);\n callback.apply(ctx, arguments);\n };\n\n listener._ = callback\n return this.on(name, listener, ctx);\n },\n\n emit: function (name) {\n var data = [].slice.call(arguments, 1);\n var evtArr = ((this.e || (this.e = {}))[name] || []).slice();\n var i = 0;\n var len = evtArr.length;\n\n for (i; i < len; i++) {\n evtArr[i].fn.apply(evtArr[i].ctx, data);\n }\n\n return this;\n },\n\n off: function (name, callback) {\n var e = this.e || (this.e = {});\n var evts = e[name];\n var liveEvents = [];\n\n if (evts && callback) {\n for (var i = 0, len = evts.length; i < len; i++) {\n if (evts[i].fn !== callback && evts[i].fn._ !== callback)\n liveEvents.push(evts[i]);\n }\n }\n\n // Remove event from queue to prevent memory leak\n // Suggested by https://github.com/lazd\n // Ref: https://github.com/scottcorgan/tiny-emitter/commit/c6ebfaa9bc973b33d110a84a307742b7cf94c953#commitcomment-5024910\n\n (liveEvents.length)\n ? e[name] = liveEvents\n : delete e[name];\n\n return this;\n }\n};\n\nmodule.exports = E;\nmodule.exports.TinyEmitter = E;\n\n\n/***/ })\n\n/******/ \t});\n/************************************************************************/\n/******/ \t// The module cache\n/******/ \tvar __webpack_module_cache__ = {};\n/******/ \t\n/******/ \t// The require function\n/******/ \tfunction __webpack_require__(moduleId) {\n/******/ \t\t// Check if module is in cache\n/******/ \t\tif(__webpack_module_cache__[moduleId]) {\n/******/ \t\t\treturn __webpack_module_cache__[moduleId].exports;\n/******/ \t\t}\n/******/ \t\t// Create a new module (and put it into the cache)\n/******/ \t\tvar module = __webpack_module_cache__[moduleId] = {\n/******/ \t\t\t// no module.id needed\n/******/ \t\t\t// no module.loaded needed\n/******/ \t\t\texports: {}\n/******/ \t\t};\n/******/ \t\n/******/ \t\t// Execute the module function\n/******/ \t\t__webpack_modules__[moduleId](module, module.exports, __webpack_require__);\n/******/ \t\n/******/ \t\t// Return the exports of the module\n/******/ \t\treturn module.exports;\n/******/ \t}\n/******/ \t\n/************************************************************************/\n/******/ \t/* webpack/runtime/compat get default export */\n/******/ \t!function() {\n/******/ \t\t// getDefaultExport function for compatibility with non-harmony modules\n/******/ \t\t__webpack_require__.n = function(module) {\n/******/ \t\t\tvar getter = module && module.__esModule ?\n/******/ \t\t\t\tfunction() { return module['default']; } :\n/******/ \t\t\t\tfunction() { return module; };\n/******/ \t\t\t__webpack_require__.d(getter, { a: getter });\n/******/ \t\t\treturn getter;\n/******/ \t\t};\n/******/ \t}();\n/******/ \t\n/******/ \t/* webpack/runtime/define property getters */\n/******/ \t!function() {\n/******/ \t\t// define getter functions for harmony exports\n/******/ \t\t__webpack_require__.d = function(exports, definition) {\n/******/ \t\t\tfor(var key in definition) {\n/******/ \t\t\t\tif(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {\n/******/ \t\t\t\t\tObject.defineProperty(exports, key, { enumerable: true, get: definition[key] });\n/******/ \t\t\t\t}\n/******/ \t\t\t}\n/******/ \t\t};\n/******/ \t}();\n/******/ \t\n/******/ \t/* webpack/runtime/hasOwnProperty shorthand */\n/******/ \t!function() {\n/******/ \t\t__webpack_require__.o = function(obj, prop) { return Object.prototype.hasOwnProperty.call(obj, prop); }\n/******/ \t}();\n/******/ \t\n/************************************************************************/\n/******/ \t// module exports must be returned from runtime so entry inlining is disabled\n/******/ \t// startup\n/******/ \t// Load entry module and return exports\n/******/ \treturn __webpack_require__(686);\n/******/ })()\n.default;\n});", "/*\n * Copyright (c) 2016-2024 Martin Donath \n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to\n * deal in the Software without restriction, including without limitation the\n * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n * sell copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS\n * IN THE SOFTWARE.\n */\n\nimport \"focus-visible\"\n\nimport {\n EMPTY,\n NEVER,\n Observable,\n Subject,\n defer,\n delay,\n filter,\n map,\n merge,\n mergeWith,\n shareReplay,\n switchMap\n} from \"rxjs\"\n\nimport { configuration, feature } from \"./_\"\nimport {\n at,\n getActiveElement,\n getOptionalElement,\n requestJSON,\n setLocation,\n setToggle,\n watchDocument,\n watchKeyboard,\n watchLocation,\n watchLocationTarget,\n watchMedia,\n watchPrint,\n watchScript,\n watchViewport\n} from \"./browser\"\nimport {\n getComponentElement,\n getComponentElements,\n mountAnnounce,\n mountBackToTop,\n mountConsent,\n mountContent,\n mountDialog,\n mountHeader,\n mountHeaderTitle,\n mountPalette,\n mountProgress,\n mountSearch,\n mountSearchHiglight,\n mountSidebar,\n mountSource,\n mountTableOfContents,\n mountTabs,\n watchHeader,\n watchMain\n} from \"./components\"\nimport {\n SearchIndex,\n setupClipboardJS,\n setupInstantNavigation,\n setupVersionSelector\n} from \"./integrations\"\nimport {\n patchEllipsis,\n patchIndeterminate,\n patchScrollfix,\n patchScrolllock\n} from \"./patches\"\nimport \"./polyfills\"\n\n/* ----------------------------------------------------------------------------\n * Functions - @todo refactor\n * ------------------------------------------------------------------------- */\n\n/**\n * Fetch search index\n *\n * @returns Search index observable\n */\nfunction fetchSearchIndex(): Observable {\n if (location.protocol === \"file:\") {\n return watchScript(\n `${new URL(\"search/search_index.js\", config.base)}`\n )\n .pipe(\n // @ts-ignore - @todo fix typings\n map(() => __index),\n shareReplay(1)\n )\n } else {\n return requestJSON(\n new URL(\"search/search_index.json\", config.base)\n )\n }\n}\n\n/* ----------------------------------------------------------------------------\n * Application\n * ------------------------------------------------------------------------- */\n\n/* Yay, JavaScript is available */\ndocument.documentElement.classList.remove(\"no-js\")\ndocument.documentElement.classList.add(\"js\")\n\n/* Set up navigation observables and subjects */\nconst document$ = watchDocument()\nconst location$ = watchLocation()\nconst target$ = watchLocationTarget(location$)\nconst keyboard$ = watchKeyboard()\n\n/* Set up media observables */\nconst viewport$ = watchViewport()\nconst tablet$ = watchMedia(\"(min-width: 960px)\")\nconst screen$ = watchMedia(\"(min-width: 1220px)\")\nconst print$ = watchPrint()\n\n/* Retrieve search index, if search is enabled */\nconst config = configuration()\nconst index$ = document.forms.namedItem(\"search\")\n ? fetchSearchIndex()\n : NEVER\n\n/* Set up Clipboard.js integration */\nconst alert$ = new Subject()\nsetupClipboardJS({ alert$ })\n\n/* Set up progress indicator */\nconst progress$ = new Subject()\n\n/* Set up instant navigation, if enabled */\nif (feature(\"navigation.instant\"))\n setupInstantNavigation({ location$, viewport$, progress$ })\n .subscribe(document$)\n\n/* Set up version selector */\nif (config.version?.provider === \"mike\")\n setupVersionSelector({ document$ })\n\n/* Always close drawer and search on navigation */\nmerge(location$, target$)\n .pipe(\n delay(125)\n )\n .subscribe(() => {\n setToggle(\"drawer\", false)\n setToggle(\"search\", false)\n })\n\n/* Set up global keyboard handlers */\nkeyboard$\n .pipe(\n filter(({ mode }) => mode === \"global\")\n )\n .subscribe(key => {\n switch (key.type) {\n\n /* Go to previous page */\n case \"p\":\n case \",\":\n const prev = getOptionalElement(\"link[rel=prev]\")\n if (typeof prev !== \"undefined\")\n setLocation(prev)\n break\n\n /* Go to next page */\n case \"n\":\n case \".\":\n const next = getOptionalElement(\"link[rel=next]\")\n if (typeof next !== \"undefined\")\n setLocation(next)\n break\n\n /* Expand navigation, see https://bit.ly/3ZjG5io */\n case \"Enter\":\n const active = getActiveElement()\n if (active instanceof HTMLLabelElement)\n active.click()\n }\n })\n\n/* Set up patches */\npatchEllipsis({ viewport$, document$ })\npatchIndeterminate({ document$, tablet$ })\npatchScrollfix({ document$ })\npatchScrolllock({ viewport$, tablet$ })\n\n/* Set up header and main area observable */\nconst header$ = watchHeader(getComponentElement(\"header\"), { viewport$ })\nconst main$ = document$\n .pipe(\n map(() => getComponentElement(\"main\")),\n switchMap(el => watchMain(el, { viewport$, header$ })),\n shareReplay(1)\n )\n\n/* Set up control component observables */\nconst control$ = merge(\n\n /* Consent */\n ...getComponentElements(\"consent\")\n .map(el => mountConsent(el, { target$ })),\n\n /* Dialog */\n ...getComponentElements(\"dialog\")\n .map(el => mountDialog(el, { alert$ })),\n\n /* Color palette */\n ...getComponentElements(\"palette\")\n .map(el => mountPalette(el)),\n\n /* Progress bar */\n ...getComponentElements(\"progress\")\n .map(el => mountProgress(el, { progress$ })),\n\n /* Search */\n ...getComponentElements(\"search\")\n .map(el => mountSearch(el, { index$, keyboard$ })),\n\n /* Repository information */\n ...getComponentElements(\"source\")\n .map(el => mountSource(el))\n)\n\n/* Set up content component observables */\nconst content$ = defer(() => merge(\n\n /* Announcement bar */\n ...getComponentElements(\"announce\")\n .map(el => mountAnnounce(el)),\n\n /* Content */\n ...getComponentElements(\"content\")\n .map(el => mountContent(el, { viewport$, target$, print$ })),\n\n /* Search highlighting */\n ...getComponentElements(\"content\")\n .map(el => feature(\"search.highlight\")\n ? mountSearchHiglight(el, { index$, location$ })\n : EMPTY\n ),\n\n /* Header */\n ...getComponentElements(\"header\")\n .map(el => mountHeader(el, { viewport$, header$, main$ })),\n\n /* Header title */\n ...getComponentElements(\"header-title\")\n .map(el => mountHeaderTitle(el, { viewport$, header$ })),\n\n /* Sidebar */\n ...getComponentElements(\"sidebar\")\n .map(el => el.getAttribute(\"data-md-type\") === \"navigation\"\n ? at(screen$, () => mountSidebar(el, { viewport$, header$, main$ }))\n : at(tablet$, () => mountSidebar(el, { viewport$, header$, main$ }))\n ),\n\n /* Navigation tabs */\n ...getComponentElements(\"tabs\")\n .map(el => mountTabs(el, { viewport$, header$ })),\n\n /* Table of contents */\n ...getComponentElements(\"toc\")\n .map(el => mountTableOfContents(el, {\n viewport$, header$, main$, target$\n })),\n\n /* Back-to-top button */\n ...getComponentElements(\"top\")\n .map(el => mountBackToTop(el, { viewport$, header$, main$, target$ }))\n))\n\n/* Set up component observables */\nconst component$ = document$\n .pipe(\n switchMap(() => content$),\n mergeWith(control$),\n shareReplay(1)\n )\n\n/* Subscribe to all components */\ncomponent$.subscribe()\n\n/* ----------------------------------------------------------------------------\n * Exports\n * ------------------------------------------------------------------------- */\n\nwindow.document$ = document$ /* Document observable */\nwindow.location$ = location$ /* Location subject */\nwindow.target$ = target$ /* Location target observable */\nwindow.keyboard$ = keyboard$ /* Keyboard observable */\nwindow.viewport$ = viewport$ /* Viewport observable */\nwindow.tablet$ = tablet$ /* Media tablet observable */\nwindow.screen$ = screen$ /* Media screen observable */\nwindow.print$ = print$ /* Media print observable */\nwindow.alert$ = alert$ /* Alert subject */\nwindow.progress$ = progress$ /* Progress indicator subject */\nwindow.component$ = component$ /* Component observable */\n", "/******************************************************************************\nCopyright (c) Microsoft Corporation.\n\nPermission to use, copy, modify, and/or distribute this software for any\npurpose with or without fee is hereby granted.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\nPERFORMANCE OF THIS SOFTWARE.\n***************************************************************************** */\n/* global Reflect, Promise, SuppressedError, Symbol, Iterator */\n\nvar extendStatics = function(d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };\n return extendStatics(d, b);\n};\n\nexport function __extends(d, b) {\n if (typeof b !== \"function\" && b !== null)\n throw new TypeError(\"Class extends value \" + String(b) + \" is not a constructor or null\");\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n}\n\nexport var __assign = function() {\n __assign = Object.assign || function __assign(t) {\n for (var s, i = 1, n = arguments.length; i < n; i++) {\n s = arguments[i];\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\n }\n return t;\n }\n return __assign.apply(this, arguments);\n}\n\nexport function __rest(s, e) {\n var t = {};\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\n t[p] = s[p];\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\n t[p[i]] = s[p[i]];\n }\n return t;\n}\n\nexport function __decorate(decorators, target, key, desc) {\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n return c > 3 && r && Object.defineProperty(target, key, r), r;\n}\n\nexport function __param(paramIndex, decorator) {\n return function (target, key) { decorator(target, key, paramIndex); }\n}\n\nexport function __esDecorate(ctor, descriptorIn, decorators, contextIn, initializers, extraInitializers) {\n function accept(f) { if (f !== void 0 && typeof f !== \"function\") throw new TypeError(\"Function expected\"); return f; }\n var kind = contextIn.kind, key = kind === \"getter\" ? \"get\" : kind === \"setter\" ? \"set\" : \"value\";\n var target = !descriptorIn && ctor ? contextIn[\"static\"] ? ctor : ctor.prototype : null;\n var descriptor = descriptorIn || (target ? Object.getOwnPropertyDescriptor(target, contextIn.name) : {});\n var _, done = false;\n for (var i = decorators.length - 1; i >= 0; i--) {\n var context = {};\n for (var p in contextIn) context[p] = p === \"access\" ? {} : contextIn[p];\n for (var p in contextIn.access) context.access[p] = contextIn.access[p];\n context.addInitializer = function (f) { if (done) throw new TypeError(\"Cannot add initializers after decoration has completed\"); extraInitializers.push(accept(f || null)); };\n var result = (0, decorators[i])(kind === \"accessor\" ? { get: descriptor.get, set: descriptor.set } : descriptor[key], context);\n if (kind === \"accessor\") {\n if (result === void 0) continue;\n if (result === null || typeof result !== \"object\") throw new TypeError(\"Object expected\");\n if (_ = accept(result.get)) descriptor.get = _;\n if (_ = accept(result.set)) descriptor.set = _;\n if (_ = accept(result.init)) initializers.unshift(_);\n }\n else if (_ = accept(result)) {\n if (kind === \"field\") initializers.unshift(_);\n else descriptor[key] = _;\n }\n }\n if (target) Object.defineProperty(target, contextIn.name, descriptor);\n done = true;\n};\n\nexport function __runInitializers(thisArg, initializers, value) {\n var useValue = arguments.length > 2;\n for (var i = 0; i < initializers.length; i++) {\n value = useValue ? initializers[i].call(thisArg, value) : initializers[i].call(thisArg);\n }\n return useValue ? value : void 0;\n};\n\nexport function __propKey(x) {\n return typeof x === \"symbol\" ? x : \"\".concat(x);\n};\n\nexport function __setFunctionName(f, name, prefix) {\n if (typeof name === \"symbol\") name = name.description ? \"[\".concat(name.description, \"]\") : \"\";\n return Object.defineProperty(f, \"name\", { configurable: true, value: prefix ? \"\".concat(prefix, \" \", name) : name });\n};\n\nexport function __metadata(metadataKey, metadataValue) {\n if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\n}\n\nexport function __awaiter(thisArg, _arguments, P, generator) {\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n return new (P || (P = Promise))(function (resolve, reject) {\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n step((generator = generator.apply(thisArg, _arguments || [])).next());\n });\n}\n\nexport function __generator(thisArg, body) {\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g = Object.create((typeof Iterator === \"function\" ? Iterator : Object).prototype);\n return g.next = verb(0), g[\"throw\"] = verb(1), g[\"return\"] = verb(2), typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\n function verb(n) { return function (v) { return step([n, v]); }; }\n function step(op) {\n if (f) throw new TypeError(\"Generator is already executing.\");\n while (g && (g = 0, op[0] && (_ = 0)), _) try {\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\n if (y = 0, t) op = [op[0] & 2, t.value];\n switch (op[0]) {\n case 0: case 1: t = op; break;\n case 4: _.label++; return { value: op[1], done: false };\n case 5: _.label++; y = op[1]; op = [0]; continue;\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\n default:\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n if (t[2]) _.ops.pop();\n _.trys.pop(); continue;\n }\n op = body.call(thisArg, _);\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n }\n}\n\nexport var __createBinding = Object.create ? (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n var desc = Object.getOwnPropertyDescriptor(m, k);\n if (!desc || (\"get\" in desc ? !m.__esModule : desc.writable || desc.configurable)) {\n desc = { enumerable: true, get: function() { return m[k]; } };\n }\n Object.defineProperty(o, k2, desc);\n}) : (function(o, m, k, k2) {\n if (k2 === undefined) k2 = k;\n o[k2] = m[k];\n});\n\nexport function __exportStar(m, o) {\n for (var p in m) if (p !== \"default\" && !Object.prototype.hasOwnProperty.call(o, p)) __createBinding(o, m, p);\n}\n\nexport function __values(o) {\n var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\n if (m) return m.call(o);\n if (o && typeof o.length === \"number\") return {\n next: function () {\n if (o && i >= o.length) o = void 0;\n return { value: o && o[i++], done: !o };\n }\n };\n throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\n}\n\nexport function __read(o, n) {\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\n if (!m) return o;\n var i = m.call(o), r, ar = [], e;\n try {\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\n }\n catch (error) { e = { error: error }; }\n finally {\n try {\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\n }\n finally { if (e) throw e.error; }\n }\n return ar;\n}\n\n/** @deprecated */\nexport function __spread() {\n for (var ar = [], i = 0; i < arguments.length; i++)\n ar = ar.concat(__read(arguments[i]));\n return ar;\n}\n\n/** @deprecated */\nexport function __spreadArrays() {\n for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\n for (var r = Array(s), k = 0, i = 0; i < il; i++)\n for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\n r[k] = a[j];\n return r;\n}\n\nexport function __spreadArray(to, from, pack) {\n if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {\n if (ar || !(i in from)) {\n if (!ar) ar = Array.prototype.slice.call(from, 0, i);\n ar[i] = from[i];\n }\n }\n return to.concat(ar || Array.prototype.slice.call(from));\n}\n\nexport function __await(v) {\n return this instanceof __await ? (this.v = v, this) : new __await(v);\n}\n\nexport function __asyncGenerator(thisArg, _arguments, generator) {\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\n var g = generator.apply(thisArg, _arguments || []), i, q = [];\n return i = Object.create((typeof AsyncIterator === \"function\" ? AsyncIterator : Object).prototype), verb(\"next\"), verb(\"throw\"), verb(\"return\", awaitReturn), i[Symbol.asyncIterator] = function () { return this; }, i;\n function awaitReturn(f) { return function (v) { return Promise.resolve(v).then(f, reject); }; }\n function verb(n, f) { if (g[n]) { i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; if (f) i[n] = f(i[n]); } }\n function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\n function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\n function fulfill(value) { resume(\"next\", value); }\n function reject(value) { resume(\"throw\", value); }\n function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\n}\n\nexport function __asyncDelegator(o) {\n var i, p;\n return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\n function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: false } : f ? f(v) : v; } : f; }\n}\n\nexport function __asyncValues(o) {\n if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\n var m = o[Symbol.asyncIterator], i;\n return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\n function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\n function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\n}\n\nexport function __makeTemplateObject(cooked, raw) {\n if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\n return cooked;\n};\n\nvar __setModuleDefault = Object.create ? (function(o, v) {\n Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n o[\"default\"] = v;\n};\n\nexport function __importStar(mod) {\n if (mod && mod.__esModule) return mod;\n var result = {};\n if (mod != null) for (var k in mod) if (k !== \"default\" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n __setModuleDefault(result, mod);\n return result;\n}\n\nexport function __importDefault(mod) {\n return (mod && mod.__esModule) ? mod : { default: mod };\n}\n\nexport function __classPrivateFieldGet(receiver, state, kind, f) {\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a getter\");\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot read private member from an object whose class did not declare it\");\n return kind === \"m\" ? f : kind === \"a\" ? f.call(receiver) : f ? f.value : state.get(receiver);\n}\n\nexport function __classPrivateFieldSet(receiver, state, value, kind, f) {\n if (kind === \"m\") throw new TypeError(\"Private method is not writable\");\n if (kind === \"a\" && !f) throw new TypeError(\"Private accessor was defined without a setter\");\n if (typeof state === \"function\" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError(\"Cannot write private member to an object whose class did not declare it\");\n return (kind === \"a\" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;\n}\n\nexport function __classPrivateFieldIn(state, receiver) {\n if (receiver === null || (typeof receiver !== \"object\" && typeof receiver !== \"function\")) throw new TypeError(\"Cannot use 'in' operator on non-object\");\n return typeof state === \"function\" ? receiver === state : state.has(receiver);\n}\n\nexport function __addDisposableResource(env, value, async) {\n if (value !== null && value !== void 0) {\n if (typeof value !== \"object\" && typeof value !== \"function\") throw new TypeError(\"Object expected.\");\n var dispose, inner;\n if (async) {\n if (!Symbol.asyncDispose) throw new TypeError(\"Symbol.asyncDispose is not defined.\");\n dispose = value[Symbol.asyncDispose];\n }\n if (dispose === void 0) {\n if (!Symbol.dispose) throw new TypeError(\"Symbol.dispose is not defined.\");\n dispose = value[Symbol.dispose];\n if (async) inner = dispose;\n }\n if (typeof dispose !== \"function\") throw new TypeError(\"Object not disposable.\");\n if (inner) dispose = function() { try { inner.call(this); } catch (e) { return Promise.reject(e); } };\n env.stack.push({ value: value, dispose: dispose, async: async });\n }\n else if (async) {\n env.stack.push({ async: true });\n }\n return value;\n}\n\nvar _SuppressedError = typeof SuppressedError === \"function\" ? SuppressedError : function (error, suppressed, message) {\n var e = new Error(message);\n return e.name = \"SuppressedError\", e.error = error, e.suppressed = suppressed, e;\n};\n\nexport function __disposeResources(env) {\n function fail(e) {\n env.error = env.hasError ? new _SuppressedError(e, env.error, \"An error was suppressed during disposal.\") : e;\n env.hasError = true;\n }\n var r, s = 0;\n function next() {\n while (r = env.stack.pop()) {\n try {\n if (!r.async && s === 1) return s = 0, env.stack.push(r), Promise.resolve().then(next);\n if (r.dispose) {\n var result = r.dispose.call(r.value);\n if (r.async) return s |= 2, Promise.resolve(result).then(next, function(e) { fail(e); return next(); });\n }\n else s |= 1;\n }\n catch (e) {\n fail(e);\n }\n }\n if (s === 1) return env.hasError ? Promise.reject(env.error) : Promise.resolve();\n if (env.hasError) throw env.error;\n }\n return next();\n}\n\nexport default {\n __extends,\n __assign,\n __rest,\n __decorate,\n __param,\n __metadata,\n __awaiter,\n __generator,\n __createBinding,\n __exportStar,\n __values,\n __read,\n __spread,\n __spreadArrays,\n __spreadArray,\n __await,\n __asyncGenerator,\n __asyncDelegator,\n __asyncValues,\n __makeTemplateObject,\n __importStar,\n __importDefault,\n __classPrivateFieldGet,\n __classPrivateFieldSet,\n __classPrivateFieldIn,\n __addDisposableResource,\n __disposeResources,\n};\n", "/**\n * Returns true if the object is a function.\n * @param value The value to check\n */\nexport function isFunction(value: any): value is (...args: any[]) => any {\n return typeof value === 'function';\n}\n", "/**\n * Used to create Error subclasses until the community moves away from ES5.\n *\n * This is because compiling from TypeScript down to ES5 has issues with subclassing Errors\n * as well as other built-in types: https://github.com/Microsoft/TypeScript/issues/12123\n *\n * @param createImpl A factory function to create the actual constructor implementation. The returned\n * function should be a named function that calls `_super` internally.\n */\nexport function createErrorClass(createImpl: (_super: any) => any): T {\n const _super = (instance: any) => {\n Error.call(instance);\n instance.stack = new Error().stack;\n };\n\n const ctorFunc = createImpl(_super);\n ctorFunc.prototype = Object.create(Error.prototype);\n ctorFunc.prototype.constructor = ctorFunc;\n return ctorFunc;\n}\n", "import { createErrorClass } from './createErrorClass';\n\nexport interface UnsubscriptionError extends Error {\n readonly errors: any[];\n}\n\nexport interface UnsubscriptionErrorCtor {\n /**\n * @deprecated Internal implementation detail. Do not construct error instances.\n * Cannot be tagged as internal: https://github.com/ReactiveX/rxjs/issues/6269\n */\n new (errors: any[]): UnsubscriptionError;\n}\n\n/**\n * An error thrown when one or more errors have occurred during the\n * `unsubscribe` of a {@link Subscription}.\n */\nexport const UnsubscriptionError: UnsubscriptionErrorCtor = createErrorClass(\n (_super) =>\n function UnsubscriptionErrorImpl(this: any, errors: (Error | string)[]) {\n _super(this);\n this.message = errors\n ? `${errors.length} errors occurred during unsubscription:\n${errors.map((err, i) => `${i + 1}) ${err.toString()}`).join('\\n ')}`\n : '';\n this.name = 'UnsubscriptionError';\n this.errors = errors;\n }\n);\n", "/**\n * Removes an item from an array, mutating it.\n * @param arr The array to remove the item from\n * @param item The item to remove\n */\nexport function arrRemove(arr: T[] | undefined | null, item: T) {\n if (arr) {\n const index = arr.indexOf(item);\n 0 <= index && arr.splice(index, 1);\n }\n}\n", "import { isFunction } from './util/isFunction';\nimport { UnsubscriptionError } from './util/UnsubscriptionError';\nimport { SubscriptionLike, TeardownLogic, Unsubscribable } from './types';\nimport { arrRemove } from './util/arrRemove';\n\n/**\n * Represents a disposable resource, such as the execution of an Observable. A\n * Subscription has one important method, `unsubscribe`, that takes no argument\n * and just disposes the resource held by the subscription.\n *\n * Additionally, subscriptions may be grouped together through the `add()`\n * method, which will attach a child Subscription to the current Subscription.\n * When a Subscription is unsubscribed, all its children (and its grandchildren)\n * will be unsubscribed as well.\n *\n * @class Subscription\n */\nexport class Subscription implements SubscriptionLike {\n /** @nocollapse */\n public static EMPTY = (() => {\n const empty = new Subscription();\n empty.closed = true;\n return empty;\n })();\n\n /**\n * A flag to indicate whether this Subscription has already been unsubscribed.\n */\n public closed = false;\n\n private _parentage: Subscription[] | Subscription | null = null;\n\n /**\n * The list of registered finalizers to execute upon unsubscription. Adding and removing from this\n * list occurs in the {@link #add} and {@link #remove} methods.\n */\n private _finalizers: Exclude[] | null = null;\n\n /**\n * @param initialTeardown A function executed first as part of the finalization\n * process that is kicked off when {@link #unsubscribe} is called.\n */\n constructor(private initialTeardown?: () => void) {}\n\n /**\n * Disposes the resources held by the subscription. May, for instance, cancel\n * an ongoing Observable execution or cancel any other type of work that\n * started when the Subscription was created.\n * @return {void}\n */\n unsubscribe(): void {\n let errors: any[] | undefined;\n\n if (!this.closed) {\n this.closed = true;\n\n // Remove this from it's parents.\n const { _parentage } = this;\n if (_parentage) {\n this._parentage = null;\n if (Array.isArray(_parentage)) {\n for (const parent of _parentage) {\n parent.remove(this);\n }\n } else {\n _parentage.remove(this);\n }\n }\n\n const { initialTeardown: initialFinalizer } = this;\n if (isFunction(initialFinalizer)) {\n try {\n initialFinalizer();\n } catch (e) {\n errors = e instanceof UnsubscriptionError ? e.errors : [e];\n }\n }\n\n const { _finalizers } = this;\n if (_finalizers) {\n this._finalizers = null;\n for (const finalizer of _finalizers) {\n try {\n execFinalizer(finalizer);\n } catch (err) {\n errors = errors ?? [];\n if (err instanceof UnsubscriptionError) {\n errors = [...errors, ...err.errors];\n } else {\n errors.push(err);\n }\n }\n }\n }\n\n if (errors) {\n throw new UnsubscriptionError(errors);\n }\n }\n }\n\n /**\n * Adds a finalizer to this subscription, so that finalization will be unsubscribed/called\n * when this subscription is unsubscribed. If this subscription is already {@link #closed},\n * because it has already been unsubscribed, then whatever finalizer is passed to it\n * will automatically be executed (unless the finalizer itself is also a closed subscription).\n *\n * Closed Subscriptions cannot be added as finalizers to any subscription. Adding a closed\n * subscription to a any subscription will result in no operation. (A noop).\n *\n * Adding a subscription to itself, or adding `null` or `undefined` will not perform any\n * operation at all. (A noop).\n *\n * `Subscription` instances that are added to this instance will automatically remove themselves\n * if they are unsubscribed. Functions and {@link Unsubscribable} objects that you wish to remove\n * will need to be removed manually with {@link #remove}\n *\n * @param teardown The finalization logic to add to this subscription.\n */\n add(teardown: TeardownLogic): void {\n // Only add the finalizer if it's not undefined\n // and don't add a subscription to itself.\n if (teardown && teardown !== this) {\n if (this.closed) {\n // If this subscription is already closed,\n // execute whatever finalizer is handed to it automatically.\n execFinalizer(teardown);\n } else {\n if (teardown instanceof Subscription) {\n // We don't add closed subscriptions, and we don't add the same subscription\n // twice. Subscription unsubscribe is idempotent.\n if (teardown.closed || teardown._hasParent(this)) {\n return;\n }\n teardown._addParent(this);\n }\n (this._finalizers = this._finalizers ?? []).push(teardown);\n }\n }\n }\n\n /**\n * Checks to see if a this subscription already has a particular parent.\n * This will signal that this subscription has already been added to the parent in question.\n * @param parent the parent to check for\n */\n private _hasParent(parent: Subscription) {\n const { _parentage } = this;\n return _parentage === parent || (Array.isArray(_parentage) && _parentage.includes(parent));\n }\n\n /**\n * Adds a parent to this subscription so it can be removed from the parent if it\n * unsubscribes on it's own.\n *\n * NOTE: THIS ASSUMES THAT {@link _hasParent} HAS ALREADY BEEN CHECKED.\n * @param parent The parent subscription to add\n */\n private _addParent(parent: Subscription) {\n const { _parentage } = this;\n this._parentage = Array.isArray(_parentage) ? (_parentage.push(parent), _parentage) : _parentage ? [_parentage, parent] : parent;\n }\n\n /**\n * Called on a child when it is removed via {@link #remove}.\n * @param parent The parent to remove\n */\n private _removeParent(parent: Subscription) {\n const { _parentage } = this;\n if (_parentage === parent) {\n this._parentage = null;\n } else if (Array.isArray(_parentage)) {\n arrRemove(_parentage, parent);\n }\n }\n\n /**\n * Removes a finalizer from this subscription that was previously added with the {@link #add} method.\n *\n * Note that `Subscription` instances, when unsubscribed, will automatically remove themselves\n * from every other `Subscription` they have been added to. This means that using the `remove` method\n * is not a common thing and should be used thoughtfully.\n *\n * If you add the same finalizer instance of a function or an unsubscribable object to a `Subscription` instance\n * more than once, you will need to call `remove` the same number of times to remove all instances.\n *\n * All finalizer instances are removed to free up memory upon unsubscription.\n *\n * @param teardown The finalizer to remove from this subscription\n */\n remove(teardown: Exclude): void {\n const { _finalizers } = this;\n _finalizers && arrRemove(_finalizers, teardown);\n\n if (teardown instanceof Subscription) {\n teardown._removeParent(this);\n }\n }\n}\n\nexport const EMPTY_SUBSCRIPTION = Subscription.EMPTY;\n\nexport function isSubscription(value: any): value is Subscription {\n return (\n value instanceof Subscription ||\n (value && 'closed' in value && isFunction(value.remove) && isFunction(value.add) && isFunction(value.unsubscribe))\n );\n}\n\nfunction execFinalizer(finalizer: Unsubscribable | (() => void)) {\n if (isFunction(finalizer)) {\n finalizer();\n } else {\n finalizer.unsubscribe();\n }\n}\n", "import { Subscriber } from './Subscriber';\nimport { ObservableNotification } from './types';\n\n/**\n * The {@link GlobalConfig} object for RxJS. It is used to configure things\n * like how to react on unhandled errors.\n */\nexport const config: GlobalConfig = {\n onUnhandledError: null,\n onStoppedNotification: null,\n Promise: undefined,\n useDeprecatedSynchronousErrorHandling: false,\n useDeprecatedNextContext: false,\n};\n\n/**\n * The global configuration object for RxJS, used to configure things\n * like how to react on unhandled errors. Accessible via {@link config}\n * object.\n */\nexport interface GlobalConfig {\n /**\n * A registration point for unhandled errors from RxJS. These are errors that\n * cannot were not handled by consuming code in the usual subscription path. For\n * example, if you have this configured, and you subscribe to an observable without\n * providing an error handler, errors from that subscription will end up here. This\n * will _always_ be called asynchronously on another job in the runtime. This is because\n * we do not want errors thrown in this user-configured handler to interfere with the\n * behavior of the library.\n */\n onUnhandledError: ((err: any) => void) | null;\n\n /**\n * A registration point for notifications that cannot be sent to subscribers because they\n * have completed, errored or have been explicitly unsubscribed. By default, next, complete\n * and error notifications sent to stopped subscribers are noops. However, sometimes callers\n * might want a different behavior. For example, with sources that attempt to report errors\n * to stopped subscribers, a caller can configure RxJS to throw an unhandled error instead.\n * This will _always_ be called asynchronously on another job in the runtime. This is because\n * we do not want errors thrown in this user-configured handler to interfere with the\n * behavior of the library.\n */\n onStoppedNotification: ((notification: ObservableNotification, subscriber: Subscriber) => void) | null;\n\n /**\n * The promise constructor used by default for {@link Observable#toPromise toPromise} and {@link Observable#forEach forEach}\n * methods.\n *\n * @deprecated As of version 8, RxJS will no longer support this sort of injection of a\n * Promise constructor. If you need a Promise implementation other than native promises,\n * please polyfill/patch Promise as you see appropriate. Will be removed in v8.\n */\n Promise?: PromiseConstructorLike;\n\n /**\n * If true, turns on synchronous error rethrowing, which is a deprecated behavior\n * in v6 and higher. This behavior enables bad patterns like wrapping a subscribe\n * call in a try/catch block. It also enables producer interference, a nasty bug\n * where a multicast can be broken for all observers by a downstream consumer with\n * an unhandled error. DO NOT USE THIS FLAG UNLESS IT'S NEEDED TO BUY TIME\n * FOR MIGRATION REASONS.\n *\n * @deprecated As of version 8, RxJS will no longer support synchronous throwing\n * of unhandled errors. All errors will be thrown on a separate call stack to prevent bad\n * behaviors described above. Will be removed in v8.\n */\n useDeprecatedSynchronousErrorHandling: boolean;\n\n /**\n * If true, enables an as-of-yet undocumented feature from v5: The ability to access\n * `unsubscribe()` via `this` context in `next` functions created in observers passed\n * to `subscribe`.\n *\n * This is being removed because the performance was severely problematic, and it could also cause\n * issues when types other than POJOs are passed to subscribe as subscribers, as they will likely have\n * their `this` context overwritten.\n *\n * @deprecated As of version 8, RxJS will no longer support altering the\n * context of next functions provided as part of an observer to Subscribe. Instead,\n * you will have access to a subscription or a signal or token that will allow you to do things like\n * unsubscribe and test closed status. Will be removed in v8.\n */\n useDeprecatedNextContext: boolean;\n}\n", "import type { TimerHandle } from './timerHandle';\ntype SetTimeoutFunction = (handler: () => void, timeout?: number, ...args: any[]) => TimerHandle;\ntype ClearTimeoutFunction = (handle: TimerHandle) => void;\n\ninterface TimeoutProvider {\n setTimeout: SetTimeoutFunction;\n clearTimeout: ClearTimeoutFunction;\n delegate:\n | {\n setTimeout: SetTimeoutFunction;\n clearTimeout: ClearTimeoutFunction;\n }\n | undefined;\n}\n\nexport const timeoutProvider: TimeoutProvider = {\n // When accessing the delegate, use the variable rather than `this` so that\n // the functions can be called without being bound to the provider.\n setTimeout(handler: () => void, timeout?: number, ...args) {\n const { delegate } = timeoutProvider;\n if (delegate?.setTimeout) {\n return delegate.setTimeout(handler, timeout, ...args);\n }\n return setTimeout(handler, timeout, ...args);\n },\n clearTimeout(handle) {\n const { delegate } = timeoutProvider;\n return (delegate?.clearTimeout || clearTimeout)(handle as any);\n },\n delegate: undefined,\n};\n", "import { config } from '../config';\nimport { timeoutProvider } from '../scheduler/timeoutProvider';\n\n/**\n * Handles an error on another job either with the user-configured {@link onUnhandledError},\n * or by throwing it on that new job so it can be picked up by `window.onerror`, `process.on('error')`, etc.\n *\n * This should be called whenever there is an error that is out-of-band with the subscription\n * or when an error hits a terminal boundary of the subscription and no error handler was provided.\n *\n * @param err the error to report\n */\nexport function reportUnhandledError(err: any) {\n timeoutProvider.setTimeout(() => {\n const { onUnhandledError } = config;\n if (onUnhandledError) {\n // Execute the user-configured error handler.\n onUnhandledError(err);\n } else {\n // Throw so it is picked up by the runtime's uncaught error mechanism.\n throw err;\n }\n });\n}\n", "/* tslint:disable:no-empty */\nexport function noop() { }\n", "import { CompleteNotification, NextNotification, ErrorNotification } from './types';\n\n/**\n * A completion object optimized for memory use and created to be the\n * same \"shape\" as other notifications in v8.\n * @internal\n */\nexport const COMPLETE_NOTIFICATION = (() => createNotification('C', undefined, undefined) as CompleteNotification)();\n\n/**\n * Internal use only. Creates an optimized error notification that is the same \"shape\"\n * as other notifications.\n * @internal\n */\nexport function errorNotification(error: any): ErrorNotification {\n return createNotification('E', undefined, error) as any;\n}\n\n/**\n * Internal use only. Creates an optimized next notification that is the same \"shape\"\n * as other notifications.\n * @internal\n */\nexport function nextNotification(value: T) {\n return createNotification('N', value, undefined) as NextNotification;\n}\n\n/**\n * Ensures that all notifications created internally have the same \"shape\" in v8.\n *\n * TODO: This is only exported to support a crazy legacy test in `groupBy`.\n * @internal\n */\nexport function createNotification(kind: 'N' | 'E' | 'C', value: any, error: any) {\n return {\n kind,\n value,\n error,\n };\n}\n", "import { config } from '../config';\n\nlet context: { errorThrown: boolean; error: any } | null = null;\n\n/**\n * Handles dealing with errors for super-gross mode. Creates a context, in which\n * any synchronously thrown errors will be passed to {@link captureError}. Which\n * will record the error such that it will be rethrown after the call back is complete.\n * TODO: Remove in v8\n * @param cb An immediately executed function.\n */\nexport function errorContext(cb: () => void) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n const isRoot = !context;\n if (isRoot) {\n context = { errorThrown: false, error: null };\n }\n cb();\n if (isRoot) {\n const { errorThrown, error } = context!;\n context = null;\n if (errorThrown) {\n throw error;\n }\n }\n } else {\n // This is the general non-deprecated path for everyone that\n // isn't crazy enough to use super-gross mode (useDeprecatedSynchronousErrorHandling)\n cb();\n }\n}\n\n/**\n * Captures errors only in super-gross mode.\n * @param err the error to capture\n */\nexport function captureError(err: any) {\n if (config.useDeprecatedSynchronousErrorHandling && context) {\n context.errorThrown = true;\n context.error = err;\n }\n}\n", "import { isFunction } from './util/isFunction';\nimport { Observer, ObservableNotification } from './types';\nimport { isSubscription, Subscription } from './Subscription';\nimport { config } from './config';\nimport { reportUnhandledError } from './util/reportUnhandledError';\nimport { noop } from './util/noop';\nimport { nextNotification, errorNotification, COMPLETE_NOTIFICATION } from './NotificationFactories';\nimport { timeoutProvider } from './scheduler/timeoutProvider';\nimport { captureError } from './util/errorContext';\n\n/**\n * Implements the {@link Observer} interface and extends the\n * {@link Subscription} class. While the {@link Observer} is the public API for\n * consuming the values of an {@link Observable}, all Observers get converted to\n * a Subscriber, in order to provide Subscription-like capabilities such as\n * `unsubscribe`. Subscriber is a common type in RxJS, and crucial for\n * implementing operators, but it is rarely used as a public API.\n *\n * @class Subscriber\n */\nexport class Subscriber extends Subscription implements Observer {\n /**\n * A static factory for a Subscriber, given a (potentially partial) definition\n * of an Observer.\n * @param next The `next` callback of an Observer.\n * @param error The `error` callback of an\n * Observer.\n * @param complete The `complete` callback of an\n * Observer.\n * @return A Subscriber wrapping the (partially defined)\n * Observer represented by the given arguments.\n * @nocollapse\n * @deprecated Do not use. Will be removed in v8. There is no replacement for this\n * method, and there is no reason to be creating instances of `Subscriber` directly.\n * If you have a specific use case, please file an issue.\n */\n static create(next?: (x?: T) => void, error?: (e?: any) => void, complete?: () => void): Subscriber {\n return new SafeSubscriber(next, error, complete);\n }\n\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n protected isStopped: boolean = false;\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n protected destination: Subscriber | Observer; // this `any` is the escape hatch to erase extra type param (e.g. R)\n\n /**\n * @deprecated Internal implementation detail, do not use directly. Will be made internal in v8.\n * There is no reason to directly create an instance of Subscriber. This type is exported for typings reasons.\n */\n constructor(destination?: Subscriber | Observer) {\n super();\n if (destination) {\n this.destination = destination;\n // Automatically chain subscriptions together here.\n // if destination is a Subscription, then it is a Subscriber.\n if (isSubscription(destination)) {\n destination.add(this);\n }\n } else {\n this.destination = EMPTY_OBSERVER;\n }\n }\n\n /**\n * The {@link Observer} callback to receive notifications of type `next` from\n * the Observable, with a value. The Observable may call this method 0 or more\n * times.\n * @param {T} [value] The `next` value.\n * @return {void}\n */\n next(value?: T): void {\n if (this.isStopped) {\n handleStoppedNotification(nextNotification(value), this);\n } else {\n this._next(value!);\n }\n }\n\n /**\n * The {@link Observer} callback to receive notifications of type `error` from\n * the Observable, with an attached `Error`. Notifies the Observer that\n * the Observable has experienced an error condition.\n * @param {any} [err] The `error` exception.\n * @return {void}\n */\n error(err?: any): void {\n if (this.isStopped) {\n handleStoppedNotification(errorNotification(err), this);\n } else {\n this.isStopped = true;\n this._error(err);\n }\n }\n\n /**\n * The {@link Observer} callback to receive a valueless notification of type\n * `complete` from the Observable. Notifies the Observer that the Observable\n * has finished sending push-based notifications.\n * @return {void}\n */\n complete(): void {\n if (this.isStopped) {\n handleStoppedNotification(COMPLETE_NOTIFICATION, this);\n } else {\n this.isStopped = true;\n this._complete();\n }\n }\n\n unsubscribe(): void {\n if (!this.closed) {\n this.isStopped = true;\n super.unsubscribe();\n this.destination = null!;\n }\n }\n\n protected _next(value: T): void {\n this.destination.next(value);\n }\n\n protected _error(err: any): void {\n try {\n this.destination.error(err);\n } finally {\n this.unsubscribe();\n }\n }\n\n protected _complete(): void {\n try {\n this.destination.complete();\n } finally {\n this.unsubscribe();\n }\n }\n}\n\n/**\n * This bind is captured here because we want to be able to have\n * compatibility with monoid libraries that tend to use a method named\n * `bind`. In particular, a library called Monio requires this.\n */\nconst _bind = Function.prototype.bind;\n\nfunction bind any>(fn: Fn, thisArg: any): Fn {\n return _bind.call(fn, thisArg);\n}\n\n/**\n * Internal optimization only, DO NOT EXPOSE.\n * @internal\n */\nclass ConsumerObserver implements Observer {\n constructor(private partialObserver: Partial>) {}\n\n next(value: T): void {\n const { partialObserver } = this;\n if (partialObserver.next) {\n try {\n partialObserver.next(value);\n } catch (error) {\n handleUnhandledError(error);\n }\n }\n }\n\n error(err: any): void {\n const { partialObserver } = this;\n if (partialObserver.error) {\n try {\n partialObserver.error(err);\n } catch (error) {\n handleUnhandledError(error);\n }\n } else {\n handleUnhandledError(err);\n }\n }\n\n complete(): void {\n const { partialObserver } = this;\n if (partialObserver.complete) {\n try {\n partialObserver.complete();\n } catch (error) {\n handleUnhandledError(error);\n }\n }\n }\n}\n\nexport class SafeSubscriber extends Subscriber {\n constructor(\n observerOrNext?: Partial> | ((value: T) => void) | null,\n error?: ((e?: any) => void) | null,\n complete?: (() => void) | null\n ) {\n super();\n\n let partialObserver: Partial>;\n if (isFunction(observerOrNext) || !observerOrNext) {\n // The first argument is a function, not an observer. The next\n // two arguments *could* be observers, or they could be empty.\n partialObserver = {\n next: (observerOrNext ?? undefined) as (((value: T) => void) | undefined),\n error: error ?? undefined,\n complete: complete ?? undefined,\n };\n } else {\n // The first argument is a partial observer.\n let context: any;\n if (this && config.useDeprecatedNextContext) {\n // This is a deprecated path that made `this.unsubscribe()` available in\n // next handler functions passed to subscribe. This only exists behind a flag\n // now, as it is *very* slow.\n context = Object.create(observerOrNext);\n context.unsubscribe = () => this.unsubscribe();\n partialObserver = {\n next: observerOrNext.next && bind(observerOrNext.next, context),\n error: observerOrNext.error && bind(observerOrNext.error, context),\n complete: observerOrNext.complete && bind(observerOrNext.complete, context),\n };\n } else {\n // The \"normal\" path. Just use the partial observer directly.\n partialObserver = observerOrNext;\n }\n }\n\n // Wrap the partial observer to ensure it's a full observer, and\n // make sure proper error handling is accounted for.\n this.destination = new ConsumerObserver(partialObserver);\n }\n}\n\nfunction handleUnhandledError(error: any) {\n if (config.useDeprecatedSynchronousErrorHandling) {\n captureError(error);\n } else {\n // Ideal path, we report this as an unhandled error,\n // which is thrown on a new call stack.\n reportUnhandledError(error);\n }\n}\n\n/**\n * An error handler used when no error handler was supplied\n * to the SafeSubscriber -- meaning no error handler was supplied\n * do the `subscribe` call on our observable.\n * @param err The error to handle\n */\nfunction defaultErrorHandler(err: any) {\n throw err;\n}\n\n/**\n * A handler for notifications that cannot be sent to a stopped subscriber.\n * @param notification The notification being sent\n * @param subscriber The stopped subscriber\n */\nfunction handleStoppedNotification(notification: ObservableNotification, subscriber: Subscriber) {\n const { onStoppedNotification } = config;\n onStoppedNotification && timeoutProvider.setTimeout(() => onStoppedNotification(notification, subscriber));\n}\n\n/**\n * The observer used as a stub for subscriptions where the user did not\n * pass any arguments to `subscribe`. Comes with the default error handling\n * behavior.\n */\nexport const EMPTY_OBSERVER: Readonly> & { closed: true } = {\n closed: true,\n next: noop,\n error: defaultErrorHandler,\n complete: noop,\n};\n", "/**\n * Symbol.observable or a string \"@@observable\". Used for interop\n *\n * @deprecated We will no longer be exporting this symbol in upcoming versions of RxJS.\n * Instead polyfill and use Symbol.observable directly *or* use https://www.npmjs.com/package/symbol-observable\n */\nexport const observable: string | symbol = (() => (typeof Symbol === 'function' && Symbol.observable) || '@@observable')();\n", "/**\n * This function takes one parameter and just returns it. Simply put,\n * this is like `(x: T): T => x`.\n *\n * ## Examples\n *\n * This is useful in some cases when using things like `mergeMap`\n *\n * ```ts\n * import { interval, take, map, range, mergeMap, identity } from 'rxjs';\n *\n * const source$ = interval(1000).pipe(take(5));\n *\n * const result$ = source$.pipe(\n * map(i => range(i)),\n * mergeMap(identity) // same as mergeMap(x => x)\n * );\n *\n * result$.subscribe({\n * next: console.log\n * });\n * ```\n *\n * Or when you want to selectively apply an operator\n *\n * ```ts\n * import { interval, take, identity } from 'rxjs';\n *\n * const shouldLimit = () => Math.random() < 0.5;\n *\n * const source$ = interval(1000);\n *\n * const result$ = source$.pipe(shouldLimit() ? take(5) : identity);\n *\n * result$.subscribe({\n * next: console.log\n * });\n * ```\n *\n * @param x Any value that is returned by this function\n * @returns The value passed as the first parameter to this function\n */\nexport function identity(x: T): T {\n return x;\n}\n", "import { identity } from './identity';\nimport { UnaryFunction } from '../types';\n\nexport function pipe(): typeof identity;\nexport function pipe(fn1: UnaryFunction): UnaryFunction;\nexport function pipe(fn1: UnaryFunction, fn2: UnaryFunction): UnaryFunction;\nexport function pipe(fn1: UnaryFunction, fn2: UnaryFunction, fn3: UnaryFunction): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction,\n fn7: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction,\n fn7: UnaryFunction,\n fn8: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction,\n fn7: UnaryFunction,\n fn8: UnaryFunction,\n fn9: UnaryFunction\n): UnaryFunction;\nexport function pipe(\n fn1: UnaryFunction,\n fn2: UnaryFunction,\n fn3: UnaryFunction,\n fn4: UnaryFunction,\n fn5: UnaryFunction,\n fn6: UnaryFunction,\n fn7: UnaryFunction,\n fn8: UnaryFunction,\n fn9: UnaryFunction,\n ...fns: UnaryFunction[]\n): UnaryFunction;\n\n/**\n * pipe() can be called on one or more functions, each of which can take one argument (\"UnaryFunction\")\n * and uses it to return a value.\n * It returns a function that takes one argument, passes it to the first UnaryFunction, and then\n * passes the result to the next one, passes that result to the next one, and so on. \n */\nexport function pipe(...fns: Array>): UnaryFunction {\n return pipeFromArray(fns);\n}\n\n/** @internal */\nexport function pipeFromArray(fns: Array>): UnaryFunction {\n if (fns.length === 0) {\n return identity as UnaryFunction;\n }\n\n if (fns.length === 1) {\n return fns[0];\n }\n\n return function piped(input: T): R {\n return fns.reduce((prev: any, fn: UnaryFunction) => fn(prev), input as any);\n };\n}\n", "import { Operator } from './Operator';\nimport { SafeSubscriber, Subscriber } from './Subscriber';\nimport { isSubscription, Subscription } from './Subscription';\nimport { TeardownLogic, OperatorFunction, Subscribable, Observer } from './types';\nimport { observable as Symbol_observable } from './symbol/observable';\nimport { pipeFromArray } from './util/pipe';\nimport { config } from './config';\nimport { isFunction } from './util/isFunction';\nimport { errorContext } from './util/errorContext';\n\n/**\n * A representation of any set of values over any amount of time. This is the most basic building block\n * of RxJS.\n *\n * @class Observable\n */\nexport class Observable implements Subscribable {\n /**\n * @deprecated Internal implementation detail, do not use directly. Will be made internal in v8.\n */\n source: Observable | undefined;\n\n /**\n * @deprecated Internal implementation detail, do not use directly. Will be made internal in v8.\n */\n operator: Operator | undefined;\n\n /**\n * @constructor\n * @param {Function} subscribe the function that is called when the Observable is\n * initially subscribed to. This function is given a Subscriber, to which new values\n * can be `next`ed, or an `error` method can be called to raise an error, or\n * `complete` can be called to notify of a successful completion.\n */\n constructor(subscribe?: (this: Observable, subscriber: Subscriber) => TeardownLogic) {\n if (subscribe) {\n this._subscribe = subscribe;\n }\n }\n\n // HACK: Since TypeScript inherits static properties too, we have to\n // fight against TypeScript here so Subject can have a different static create signature\n /**\n * Creates a new Observable by calling the Observable constructor\n * @owner Observable\n * @method create\n * @param {Function} subscribe? the subscriber function to be passed to the Observable constructor\n * @return {Observable} a new observable\n * @nocollapse\n * @deprecated Use `new Observable()` instead. Will be removed in v8.\n */\n static create: (...args: any[]) => any = (subscribe?: (subscriber: Subscriber) => TeardownLogic) => {\n return new Observable(subscribe);\n };\n\n /**\n * Creates a new Observable, with this Observable instance as the source, and the passed\n * operator defined as the new observable's operator.\n * @method lift\n * @param operator the operator defining the operation to take on the observable\n * @return a new observable with the Operator applied\n * @deprecated Internal implementation detail, do not use directly. Will be made internal in v8.\n * If you have implemented an operator using `lift`, it is recommended that you create an\n * operator by simply returning `new Observable()` directly. See \"Creating new operators from\n * scratch\" section here: https://rxjs.dev/guide/operators\n */\n lift(operator?: Operator): Observable {\n const observable = new Observable();\n observable.source = this;\n observable.operator = operator;\n return observable;\n }\n\n subscribe(observerOrNext?: Partial> | ((value: T) => void)): Subscription;\n /** @deprecated Instead of passing separate callback arguments, use an observer argument. Signatures taking separate callback arguments will be removed in v8. Details: https://rxjs.dev/deprecations/subscribe-arguments */\n subscribe(next?: ((value: T) => void) | null, error?: ((error: any) => void) | null, complete?: (() => void) | null): Subscription;\n /**\n * Invokes an execution of an Observable and registers Observer handlers for notifications it will emit.\n *\n * Use it when you have all these Observables, but still nothing is happening.\n *\n * `subscribe` is not a regular operator, but a method that calls Observable's internal `subscribe` function. It\n * might be for example a function that you passed to Observable's constructor, but most of the time it is\n * a library implementation, which defines what will be emitted by an Observable, and when it be will emitted. This means\n * that calling `subscribe` is actually the moment when Observable starts its work, not when it is created, as it is often\n * the thought.\n *\n * Apart from starting the execution of an Observable, this method allows you to listen for values\n * that an Observable emits, as well as for when it completes or errors. You can achieve this in two\n * of the following ways.\n *\n * The first way is creating an object that implements {@link Observer} interface. It should have methods\n * defined by that interface, but note that it should be just a regular JavaScript object, which you can create\n * yourself in any way you want (ES6 class, classic function constructor, object literal etc.). In particular, do\n * not attempt to use any RxJS implementation details to create Observers - you don't need them. Remember also\n * that your object does not have to implement all methods. If you find yourself creating a method that doesn't\n * do anything, you can simply omit it. Note however, if the `error` method is not provided and an error happens,\n * it will be thrown asynchronously. Errors thrown asynchronously cannot be caught using `try`/`catch`. Instead,\n * use the {@link onUnhandledError} configuration option or use a runtime handler (like `window.onerror` or\n * `process.on('error)`) to be notified of unhandled errors. Because of this, it's recommended that you provide\n * an `error` method to avoid missing thrown errors.\n *\n * The second way is to give up on Observer object altogether and simply provide callback functions in place of its methods.\n * This means you can provide three functions as arguments to `subscribe`, where the first function is equivalent\n * of a `next` method, the second of an `error` method and the third of a `complete` method. Just as in case of an Observer,\n * if you do not need to listen for something, you can omit a function by passing `undefined` or `null`,\n * since `subscribe` recognizes these functions by where they were placed in function call. When it comes\n * to the `error` function, as with an Observer, if not provided, errors emitted by an Observable will be thrown asynchronously.\n *\n * You can, however, subscribe with no parameters at all. This may be the case where you're not interested in terminal events\n * and you also handled emissions internally by using operators (e.g. using `tap`).\n *\n * Whichever style of calling `subscribe` you use, in both cases it returns a Subscription object.\n * This object allows you to call `unsubscribe` on it, which in turn will stop the work that an Observable does and will clean\n * up all resources that an Observable used. Note that cancelling a subscription will not call `complete` callback\n * provided to `subscribe` function, which is reserved for a regular completion signal that comes from an Observable.\n *\n * Remember that callbacks provided to `subscribe` are not guaranteed to be called asynchronously.\n * It is an Observable itself that decides when these functions will be called. For example {@link of}\n * by default emits all its values synchronously. Always check documentation for how given Observable\n * will behave when subscribed and if its default behavior can be modified with a `scheduler`.\n *\n * #### Examples\n *\n * Subscribe with an {@link guide/observer Observer}\n *\n * ```ts\n * import { of } from 'rxjs';\n *\n * const sumObserver = {\n * sum: 0,\n * next(value) {\n * console.log('Adding: ' + value);\n * this.sum = this.sum + value;\n * },\n * error() {\n * // We actually could just remove this method,\n * // since we do not really care about errors right now.\n * },\n * complete() {\n * console.log('Sum equals: ' + this.sum);\n * }\n * };\n *\n * of(1, 2, 3) // Synchronously emits 1, 2, 3 and then completes.\n * .subscribe(sumObserver);\n *\n * // Logs:\n * // 'Adding: 1'\n * // 'Adding: 2'\n * // 'Adding: 3'\n * // 'Sum equals: 6'\n * ```\n *\n * Subscribe with functions ({@link deprecations/subscribe-arguments deprecated})\n *\n * ```ts\n * import { of } from 'rxjs'\n *\n * let sum = 0;\n *\n * of(1, 2, 3).subscribe(\n * value => {\n * console.log('Adding: ' + value);\n * sum = sum + value;\n * },\n * undefined,\n * () => console.log('Sum equals: ' + sum)\n * );\n *\n * // Logs:\n * // 'Adding: 1'\n * // 'Adding: 2'\n * // 'Adding: 3'\n * // 'Sum equals: 6'\n * ```\n *\n * Cancel a subscription\n *\n * ```ts\n * import { interval } from 'rxjs';\n *\n * const subscription = interval(1000).subscribe({\n * next(num) {\n * console.log(num)\n * },\n * complete() {\n * // Will not be called, even when cancelling subscription.\n * console.log('completed!');\n * }\n * });\n *\n * setTimeout(() => {\n * subscription.unsubscribe();\n * console.log('unsubscribed!');\n * }, 2500);\n *\n * // Logs:\n * // 0 after 1s\n * // 1 after 2s\n * // 'unsubscribed!' after 2.5s\n * ```\n *\n * @param {Observer|Function} observerOrNext (optional) Either an observer with methods to be called,\n * or the first of three possible handlers, which is the handler for each value emitted from the subscribed\n * Observable.\n * @param {Function} error (optional) A handler for a terminal event resulting from an error. If no error handler is provided,\n * the error will be thrown asynchronously as unhandled.\n * @param {Function} complete (optional) A handler for a terminal event resulting from successful completion.\n * @return {Subscription} a subscription reference to the registered handlers\n * @method subscribe\n */\n subscribe(\n observerOrNext?: Partial> | ((value: T) => void) | null,\n error?: ((error: any) => void) | null,\n complete?: (() => void) | null\n ): Subscription {\n const subscriber = isSubscriber(observerOrNext) ? observerOrNext : new SafeSubscriber(observerOrNext, error, complete);\n\n errorContext(() => {\n const { operator, source } = this;\n subscriber.add(\n operator\n ? // We're dealing with a subscription in the\n // operator chain to one of our lifted operators.\n operator.call(subscriber, source)\n : source\n ? // If `source` has a value, but `operator` does not, something that\n // had intimate knowledge of our API, like our `Subject`, must have\n // set it. We're going to just call `_subscribe` directly.\n this._subscribe(subscriber)\n : // In all other cases, we're likely wrapping a user-provided initializer\n // function, so we need to catch errors and handle them appropriately.\n this._trySubscribe(subscriber)\n );\n });\n\n return subscriber;\n }\n\n /** @internal */\n protected _trySubscribe(sink: Subscriber): TeardownLogic {\n try {\n return this._subscribe(sink);\n } catch (err) {\n // We don't need to return anything in this case,\n // because it's just going to try to `add()` to a subscription\n // above.\n sink.error(err);\n }\n }\n\n /**\n * Used as a NON-CANCELLABLE means of subscribing to an observable, for use with\n * APIs that expect promises, like `async/await`. You cannot unsubscribe from this.\n *\n * **WARNING**: Only use this with observables you *know* will complete. If the source\n * observable does not complete, you will end up with a promise that is hung up, and\n * potentially all of the state of an async function hanging out in memory. To avoid\n * this situation, look into adding something like {@link timeout}, {@link take},\n * {@link takeWhile}, or {@link takeUntil} amongst others.\n *\n * #### Example\n *\n * ```ts\n * import { interval, take } from 'rxjs';\n *\n * const source$ = interval(1000).pipe(take(4));\n *\n * async function getTotal() {\n * let total = 0;\n *\n * await source$.forEach(value => {\n * total += value;\n * console.log('observable -> ' + value);\n * });\n *\n * return total;\n * }\n *\n * getTotal().then(\n * total => console.log('Total: ' + total)\n * );\n *\n * // Expected:\n * // 'observable -> 0'\n * // 'observable -> 1'\n * // 'observable -> 2'\n * // 'observable -> 3'\n * // 'Total: 6'\n * ```\n *\n * @param next a handler for each value emitted by the observable\n * @return a promise that either resolves on observable completion or\n * rejects with the handled error\n */\n forEach(next: (value: T) => void): Promise;\n\n /**\n * @param next a handler for each value emitted by the observable\n * @param promiseCtor a constructor function used to instantiate the Promise\n * @return a promise that either resolves on observable completion or\n * rejects with the handled error\n * @deprecated Passing a Promise constructor will no longer be available\n * in upcoming versions of RxJS. This is because it adds weight to the library, for very\n * little benefit. If you need this functionality, it is recommended that you either\n * polyfill Promise, or you create an adapter to convert the returned native promise\n * to whatever promise implementation you wanted. Will be removed in v8.\n */\n forEach(next: (value: T) => void, promiseCtor: PromiseConstructorLike): Promise;\n\n forEach(next: (value: T) => void, promiseCtor?: PromiseConstructorLike): Promise {\n promiseCtor = getPromiseCtor(promiseCtor);\n\n return new promiseCtor((resolve, reject) => {\n const subscriber = new SafeSubscriber({\n next: (value) => {\n try {\n next(value);\n } catch (err) {\n reject(err);\n subscriber.unsubscribe();\n }\n },\n error: reject,\n complete: resolve,\n });\n this.subscribe(subscriber);\n }) as Promise;\n }\n\n /** @internal */\n protected _subscribe(subscriber: Subscriber): TeardownLogic {\n return this.source?.subscribe(subscriber);\n }\n\n /**\n * An interop point defined by the es7-observable spec https://github.com/zenparsing/es-observable\n * @method Symbol.observable\n * @return {Observable} this instance of the observable\n */\n [Symbol_observable]() {\n return this;\n }\n\n /* tslint:disable:max-line-length */\n pipe(): Observable;\n pipe(op1: OperatorFunction): Observable;\n pipe(op1: OperatorFunction, op2: OperatorFunction): Observable;\n pipe(op1: OperatorFunction, op2: OperatorFunction, op3: OperatorFunction): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction,\n op7: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction,\n op7: OperatorFunction,\n op8: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction,\n op7: OperatorFunction,\n op8: OperatorFunction,\n op9: OperatorFunction\n ): Observable;\n pipe(\n op1: OperatorFunction,\n op2: OperatorFunction,\n op3: OperatorFunction,\n op4: OperatorFunction,\n op5: OperatorFunction,\n op6: OperatorFunction,\n op7: OperatorFunction,\n op8: OperatorFunction,\n op9: OperatorFunction,\n ...operations: OperatorFunction[]\n ): Observable;\n /* tslint:enable:max-line-length */\n\n /**\n * Used to stitch together functional operators into a chain.\n * @method pipe\n * @return {Observable} the Observable result of all of the operators having\n * been called in the order they were passed in.\n *\n * ## Example\n *\n * ```ts\n * import { interval, filter, map, scan } from 'rxjs';\n *\n * interval(1000)\n * .pipe(\n * filter(x => x % 2 === 0),\n * map(x => x + x),\n * scan((acc, x) => acc + x)\n * )\n * .subscribe(x => console.log(x));\n * ```\n */\n pipe(...operations: OperatorFunction[]): Observable {\n return pipeFromArray(operations)(this);\n }\n\n /* tslint:disable:max-line-length */\n /** @deprecated Replaced with {@link firstValueFrom} and {@link lastValueFrom}. Will be removed in v8. Details: https://rxjs.dev/deprecations/to-promise */\n toPromise(): Promise;\n /** @deprecated Replaced with {@link firstValueFrom} and {@link lastValueFrom}. Will be removed in v8. Details: https://rxjs.dev/deprecations/to-promise */\n toPromise(PromiseCtor: typeof Promise): Promise;\n /** @deprecated Replaced with {@link firstValueFrom} and {@link lastValueFrom}. Will be removed in v8. Details: https://rxjs.dev/deprecations/to-promise */\n toPromise(PromiseCtor: PromiseConstructorLike): Promise;\n /* tslint:enable:max-line-length */\n\n /**\n * Subscribe to this Observable and get a Promise resolving on\n * `complete` with the last emission (if any).\n *\n * **WARNING**: Only use this with observables you *know* will complete. If the source\n * observable does not complete, you will end up with a promise that is hung up, and\n * potentially all of the state of an async function hanging out in memory. To avoid\n * this situation, look into adding something like {@link timeout}, {@link take},\n * {@link takeWhile}, or {@link takeUntil} amongst others.\n *\n * @method toPromise\n * @param [promiseCtor] a constructor function used to instantiate\n * the Promise\n * @return A Promise that resolves with the last value emit, or\n * rejects on an error. If there were no emissions, Promise\n * resolves with undefined.\n * @deprecated Replaced with {@link firstValueFrom} and {@link lastValueFrom}. Will be removed in v8. Details: https://rxjs.dev/deprecations/to-promise\n */\n toPromise(promiseCtor?: PromiseConstructorLike): Promise {\n promiseCtor = getPromiseCtor(promiseCtor);\n\n return new promiseCtor((resolve, reject) => {\n let value: T | undefined;\n this.subscribe(\n (x: T) => (value = x),\n (err: any) => reject(err),\n () => resolve(value)\n );\n }) as Promise;\n }\n}\n\n/**\n * Decides between a passed promise constructor from consuming code,\n * A default configured promise constructor, and the native promise\n * constructor and returns it. If nothing can be found, it will throw\n * an error.\n * @param promiseCtor The optional promise constructor to passed by consuming code\n */\nfunction getPromiseCtor(promiseCtor: PromiseConstructorLike | undefined) {\n return promiseCtor ?? config.Promise ?? Promise;\n}\n\nfunction isObserver(value: any): value is Observer {\n return value && isFunction(value.next) && isFunction(value.error) && isFunction(value.complete);\n}\n\nfunction isSubscriber(value: any): value is Subscriber {\n return (value && value instanceof Subscriber) || (isObserver(value) && isSubscription(value));\n}\n", "import { Observable } from '../Observable';\nimport { Subscriber } from '../Subscriber';\nimport { OperatorFunction } from '../types';\nimport { isFunction } from './isFunction';\n\n/**\n * Used to determine if an object is an Observable with a lift function.\n */\nexport function hasLift(source: any): source is { lift: InstanceType['lift'] } {\n return isFunction(source?.lift);\n}\n\n/**\n * Creates an `OperatorFunction`. Used to define operators throughout the library in a concise way.\n * @param init The logic to connect the liftedSource to the subscriber at the moment of subscription.\n */\nexport function operate(\n init: (liftedSource: Observable, subscriber: Subscriber) => (() => void) | void\n): OperatorFunction {\n return (source: Observable) => {\n if (hasLift(source)) {\n return source.lift(function (this: Subscriber, liftedSource: Observable) {\n try {\n return init(liftedSource, this);\n } catch (err) {\n this.error(err);\n }\n });\n }\n throw new TypeError('Unable to lift unknown Observable type');\n };\n}\n", "import { Subscriber } from '../Subscriber';\n\n/**\n * Creates an instance of an `OperatorSubscriber`.\n * @param destination The downstream subscriber.\n * @param onNext Handles next values, only called if this subscriber is not stopped or closed. Any\n * error that occurs in this function is caught and sent to the `error` method of this subscriber.\n * @param onError Handles errors from the subscription, any errors that occur in this handler are caught\n * and send to the `destination` error handler.\n * @param onComplete Handles completion notification from the subscription. Any errors that occur in\n * this handler are sent to the `destination` error handler.\n * @param onFinalize Additional teardown logic here. This will only be called on teardown if the\n * subscriber itself is not already closed. This is called after all other teardown logic is executed.\n */\nexport function createOperatorSubscriber(\n destination: Subscriber,\n onNext?: (value: T) => void,\n onComplete?: () => void,\n onError?: (err: any) => void,\n onFinalize?: () => void\n): Subscriber {\n return new OperatorSubscriber(destination, onNext, onComplete, onError, onFinalize);\n}\n\n/**\n * A generic helper for allowing operators to be created with a Subscriber and\n * use closures to capture necessary state from the operator function itself.\n */\nexport class OperatorSubscriber extends Subscriber {\n /**\n * Creates an instance of an `OperatorSubscriber`.\n * @param destination The downstream subscriber.\n * @param onNext Handles next values, only called if this subscriber is not stopped or closed. Any\n * error that occurs in this function is caught and sent to the `error` method of this subscriber.\n * @param onError Handles errors from the subscription, any errors that occur in this handler are caught\n * and send to the `destination` error handler.\n * @param onComplete Handles completion notification from the subscription. Any errors that occur in\n * this handler are sent to the `destination` error handler.\n * @param onFinalize Additional finalization logic here. This will only be called on finalization if the\n * subscriber itself is not already closed. This is called after all other finalization logic is executed.\n * @param shouldUnsubscribe An optional check to see if an unsubscribe call should truly unsubscribe.\n * NOTE: This currently **ONLY** exists to support the strange behavior of {@link groupBy}, where unsubscription\n * to the resulting observable does not actually disconnect from the source if there are active subscriptions\n * to any grouped observable. (DO NOT EXPOSE OR USE EXTERNALLY!!!)\n */\n constructor(\n destination: Subscriber,\n onNext?: (value: T) => void,\n onComplete?: () => void,\n onError?: (err: any) => void,\n private onFinalize?: () => void,\n private shouldUnsubscribe?: () => boolean\n ) {\n // It's important - for performance reasons - that all of this class's\n // members are initialized and that they are always initialized in the same\n // order. This will ensure that all OperatorSubscriber instances have the\n // same hidden class in V8. This, in turn, will help keep the number of\n // hidden classes involved in property accesses within the base class as\n // low as possible. If the number of hidden classes involved exceeds four,\n // the property accesses will become megamorphic and performance penalties\n // will be incurred - i.e. inline caches won't be used.\n //\n // The reasons for ensuring all instances have the same hidden class are\n // further discussed in this blog post from Benedikt Meurer:\n // https://benediktmeurer.de/2018/03/23/impact-of-polymorphism-on-component-based-frameworks-like-react/\n super(destination);\n this._next = onNext\n ? function (this: OperatorSubscriber, value: T) {\n try {\n onNext(value);\n } catch (err) {\n destination.error(err);\n }\n }\n : super._next;\n this._error = onError\n ? function (this: OperatorSubscriber, err: any) {\n try {\n onError(err);\n } catch (err) {\n // Send any errors that occur down stream.\n destination.error(err);\n } finally {\n // Ensure finalization.\n this.unsubscribe();\n }\n }\n : super._error;\n this._complete = onComplete\n ? function (this: OperatorSubscriber) {\n try {\n onComplete();\n } catch (err) {\n // Send any errors that occur down stream.\n destination.error(err);\n } finally {\n // Ensure finalization.\n this.unsubscribe();\n }\n }\n : super._complete;\n }\n\n unsubscribe() {\n if (!this.shouldUnsubscribe || this.shouldUnsubscribe()) {\n const { closed } = this;\n super.unsubscribe();\n // Execute additional teardown if we have any and we didn't already do so.\n !closed && this.onFinalize?.();\n }\n }\n}\n", "import { Subscription } from '../Subscription';\n\ninterface AnimationFrameProvider {\n schedule(callback: FrameRequestCallback): Subscription;\n requestAnimationFrame: typeof requestAnimationFrame;\n cancelAnimationFrame: typeof cancelAnimationFrame;\n delegate:\n | {\n requestAnimationFrame: typeof requestAnimationFrame;\n cancelAnimationFrame: typeof cancelAnimationFrame;\n }\n | undefined;\n}\n\nexport const animationFrameProvider: AnimationFrameProvider = {\n // When accessing the delegate, use the variable rather than `this` so that\n // the functions can be called without being bound to the provider.\n schedule(callback) {\n let request = requestAnimationFrame;\n let cancel: typeof cancelAnimationFrame | undefined = cancelAnimationFrame;\n const { delegate } = animationFrameProvider;\n if (delegate) {\n request = delegate.requestAnimationFrame;\n cancel = delegate.cancelAnimationFrame;\n }\n const handle = request((timestamp) => {\n // Clear the cancel function. The request has been fulfilled, so\n // attempting to cancel the request upon unsubscription would be\n // pointless.\n cancel = undefined;\n callback(timestamp);\n });\n return new Subscription(() => cancel?.(handle));\n },\n requestAnimationFrame(...args) {\n const { delegate } = animationFrameProvider;\n return (delegate?.requestAnimationFrame || requestAnimationFrame)(...args);\n },\n cancelAnimationFrame(...args) {\n const { delegate } = animationFrameProvider;\n return (delegate?.cancelAnimationFrame || cancelAnimationFrame)(...args);\n },\n delegate: undefined,\n};\n", "import { createErrorClass } from './createErrorClass';\n\nexport interface ObjectUnsubscribedError extends Error {}\n\nexport interface ObjectUnsubscribedErrorCtor {\n /**\n * @deprecated Internal implementation detail. Do not construct error instances.\n * Cannot be tagged as internal: https://github.com/ReactiveX/rxjs/issues/6269\n */\n new (): ObjectUnsubscribedError;\n}\n\n/**\n * An error thrown when an action is invalid because the object has been\n * unsubscribed.\n *\n * @see {@link Subject}\n * @see {@link BehaviorSubject}\n *\n * @class ObjectUnsubscribedError\n */\nexport const ObjectUnsubscribedError: ObjectUnsubscribedErrorCtor = createErrorClass(\n (_super) =>\n function ObjectUnsubscribedErrorImpl(this: any) {\n _super(this);\n this.name = 'ObjectUnsubscribedError';\n this.message = 'object unsubscribed';\n }\n);\n", "import { Operator } from './Operator';\nimport { Observable } from './Observable';\nimport { Subscriber } from './Subscriber';\nimport { Subscription, EMPTY_SUBSCRIPTION } from './Subscription';\nimport { Observer, SubscriptionLike, TeardownLogic } from './types';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { arrRemove } from './util/arrRemove';\nimport { errorContext } from './util/errorContext';\n\n/**\n * A Subject is a special type of Observable that allows values to be\n * multicasted to many Observers. Subjects are like EventEmitters.\n *\n * Every Subject is an Observable and an Observer. You can subscribe to a\n * Subject, and you can call next to feed values as well as error and complete.\n */\nexport class Subject extends Observable implements SubscriptionLike {\n closed = false;\n\n private currentObservers: Observer[] | null = null;\n\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n observers: Observer[] = [];\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n isStopped = false;\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n hasError = false;\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n thrownError: any = null;\n\n /**\n * Creates a \"subject\" by basically gluing an observer to an observable.\n *\n * @nocollapse\n * @deprecated Recommended you do not use. Will be removed at some point in the future. Plans for replacement still under discussion.\n */\n static create: (...args: any[]) => any = (destination: Observer, source: Observable): AnonymousSubject => {\n return new AnonymousSubject(destination, source);\n };\n\n constructor() {\n // NOTE: This must be here to obscure Observable's constructor.\n super();\n }\n\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n lift(operator: Operator): Observable {\n const subject = new AnonymousSubject(this, this);\n subject.operator = operator as any;\n return subject as any;\n }\n\n /** @internal */\n protected _throwIfClosed() {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n }\n\n next(value: T) {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n if (!this.currentObservers) {\n this.currentObservers = Array.from(this.observers);\n }\n for (const observer of this.currentObservers) {\n observer.next(value);\n }\n }\n });\n }\n\n error(err: any) {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n this.hasError = this.isStopped = true;\n this.thrownError = err;\n const { observers } = this;\n while (observers.length) {\n observers.shift()!.error(err);\n }\n }\n });\n }\n\n complete() {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n this.isStopped = true;\n const { observers } = this;\n while (observers.length) {\n observers.shift()!.complete();\n }\n }\n });\n }\n\n unsubscribe() {\n this.isStopped = this.closed = true;\n this.observers = this.currentObservers = null!;\n }\n\n get observed() {\n return this.observers?.length > 0;\n }\n\n /** @internal */\n protected _trySubscribe(subscriber: Subscriber): TeardownLogic {\n this._throwIfClosed();\n return super._trySubscribe(subscriber);\n }\n\n /** @internal */\n protected _subscribe(subscriber: Subscriber): Subscription {\n this._throwIfClosed();\n this._checkFinalizedStatuses(subscriber);\n return this._innerSubscribe(subscriber);\n }\n\n /** @internal */\n protected _innerSubscribe(subscriber: Subscriber) {\n const { hasError, isStopped, observers } = this;\n if (hasError || isStopped) {\n return EMPTY_SUBSCRIPTION;\n }\n this.currentObservers = null;\n observers.push(subscriber);\n return new Subscription(() => {\n this.currentObservers = null;\n arrRemove(observers, subscriber);\n });\n }\n\n /** @internal */\n protected _checkFinalizedStatuses(subscriber: Subscriber) {\n const { hasError, thrownError, isStopped } = this;\n if (hasError) {\n subscriber.error(thrownError);\n } else if (isStopped) {\n subscriber.complete();\n }\n }\n\n /**\n * Creates a new Observable with this Subject as the source. You can do this\n * to create custom Observer-side logic of the Subject and conceal it from\n * code that uses the Observable.\n * @return {Observable} Observable that the Subject casts to\n */\n asObservable(): Observable {\n const observable: any = new Observable();\n observable.source = this;\n return observable;\n }\n}\n\n/**\n * @class AnonymousSubject\n */\nexport class AnonymousSubject extends Subject {\n constructor(\n /** @deprecated Internal implementation detail, do not use directly. Will be made internal in v8. */\n public destination?: Observer,\n source?: Observable\n ) {\n super();\n this.source = source;\n }\n\n next(value: T) {\n this.destination?.next?.(value);\n }\n\n error(err: any) {\n this.destination?.error?.(err);\n }\n\n complete() {\n this.destination?.complete?.();\n }\n\n /** @internal */\n protected _subscribe(subscriber: Subscriber): Subscription {\n return this.source?.subscribe(subscriber) ?? EMPTY_SUBSCRIPTION;\n }\n}\n", "import { Subject } from './Subject';\nimport { Subscriber } from './Subscriber';\nimport { Subscription } from './Subscription';\n\n/**\n * A variant of Subject that requires an initial value and emits its current\n * value whenever it is subscribed to.\n *\n * @class BehaviorSubject\n */\nexport class BehaviorSubject extends Subject {\n constructor(private _value: T) {\n super();\n }\n\n get value(): T {\n return this.getValue();\n }\n\n /** @internal */\n protected _subscribe(subscriber: Subscriber): Subscription {\n const subscription = super._subscribe(subscriber);\n !subscription.closed && subscriber.next(this._value);\n return subscription;\n }\n\n getValue(): T {\n const { hasError, thrownError, _value } = this;\n if (hasError) {\n throw thrownError;\n }\n this._throwIfClosed();\n return _value;\n }\n\n next(value: T): void {\n super.next((this._value = value));\n }\n}\n", "import { TimestampProvider } from '../types';\n\ninterface DateTimestampProvider extends TimestampProvider {\n delegate: TimestampProvider | undefined;\n}\n\nexport const dateTimestampProvider: DateTimestampProvider = {\n now() {\n // Use the variable rather than `this` so that the function can be called\n // without being bound to the provider.\n return (dateTimestampProvider.delegate || Date).now();\n },\n delegate: undefined,\n};\n", "import { Subject } from './Subject';\nimport { TimestampProvider } from './types';\nimport { Subscriber } from './Subscriber';\nimport { Subscription } from './Subscription';\nimport { dateTimestampProvider } from './scheduler/dateTimestampProvider';\n\n/**\n * A variant of {@link Subject} that \"replays\" old values to new subscribers by emitting them when they first subscribe.\n *\n * `ReplaySubject` has an internal buffer that will store a specified number of values that it has observed. Like `Subject`,\n * `ReplaySubject` \"observes\" values by having them passed to its `next` method. When it observes a value, it will store that\n * value for a time determined by the configuration of the `ReplaySubject`, as passed to its constructor.\n *\n * When a new subscriber subscribes to the `ReplaySubject` instance, it will synchronously emit all values in its buffer in\n * a First-In-First-Out (FIFO) manner. The `ReplaySubject` will also complete, if it has observed completion; and it will\n * error if it has observed an error.\n *\n * There are two main configuration items to be concerned with:\n *\n * 1. `bufferSize` - This will determine how many items are stored in the buffer, defaults to infinite.\n * 2. `windowTime` - The amount of time to hold a value in the buffer before removing it from the buffer.\n *\n * Both configurations may exist simultaneously. So if you would like to buffer a maximum of 3 values, as long as the values\n * are less than 2 seconds old, you could do so with a `new ReplaySubject(3, 2000)`.\n *\n * ### Differences with BehaviorSubject\n *\n * `BehaviorSubject` is similar to `new ReplaySubject(1)`, with a couple of exceptions:\n *\n * 1. `BehaviorSubject` comes \"primed\" with a single value upon construction.\n * 2. `ReplaySubject` will replay values, even after observing an error, where `BehaviorSubject` will not.\n *\n * @see {@link Subject}\n * @see {@link BehaviorSubject}\n * @see {@link shareReplay}\n */\nexport class ReplaySubject extends Subject {\n private _buffer: (T | number)[] = [];\n private _infiniteTimeWindow = true;\n\n /**\n * @param bufferSize The size of the buffer to replay on subscription\n * @param windowTime The amount of time the buffered items will stay buffered\n * @param timestampProvider An object with a `now()` method that provides the current timestamp. This is used to\n * calculate the amount of time something has been buffered.\n */\n constructor(\n private _bufferSize = Infinity,\n private _windowTime = Infinity,\n private _timestampProvider: TimestampProvider = dateTimestampProvider\n ) {\n super();\n this._infiniteTimeWindow = _windowTime === Infinity;\n this._bufferSize = Math.max(1, _bufferSize);\n this._windowTime = Math.max(1, _windowTime);\n }\n\n next(value: T): void {\n const { isStopped, _buffer, _infiniteTimeWindow, _timestampProvider, _windowTime } = this;\n if (!isStopped) {\n _buffer.push(value);\n !_infiniteTimeWindow && _buffer.push(_timestampProvider.now() + _windowTime);\n }\n this._trimBuffer();\n super.next(value);\n }\n\n /** @internal */\n protected _subscribe(subscriber: Subscriber): Subscription {\n this._throwIfClosed();\n this._trimBuffer();\n\n const subscription = this._innerSubscribe(subscriber);\n\n const { _infiniteTimeWindow, _buffer } = this;\n // We use a copy here, so reentrant code does not mutate our array while we're\n // emitting it to a new subscriber.\n const copy = _buffer.slice();\n for (let i = 0; i < copy.length && !subscriber.closed; i += _infiniteTimeWindow ? 1 : 2) {\n subscriber.next(copy[i] as T);\n }\n\n this._checkFinalizedStatuses(subscriber);\n\n return subscription;\n }\n\n private _trimBuffer() {\n const { _bufferSize, _timestampProvider, _buffer, _infiniteTimeWindow } = this;\n // If we don't have an infinite buffer size, and we're over the length,\n // use splice to truncate the old buffer values off. Note that we have to\n // double the size for instances where we're not using an infinite time window\n // because we're storing the values and the timestamps in the same array.\n const adjustedBufferSize = (_infiniteTimeWindow ? 1 : 2) * _bufferSize;\n _bufferSize < Infinity && adjustedBufferSize < _buffer.length && _buffer.splice(0, _buffer.length - adjustedBufferSize);\n\n // Now, if we're not in an infinite time window, remove all values where the time is\n // older than what is allowed.\n if (!_infiniteTimeWindow) {\n const now = _timestampProvider.now();\n let last = 0;\n // Search the array for the first timestamp that isn't expired and\n // truncate the buffer up to that point.\n for (let i = 1; i < _buffer.length && (_buffer[i] as number) <= now; i += 2) {\n last = i;\n }\n last && _buffer.splice(0, last + 1);\n }\n }\n}\n", "import { Scheduler } from '../Scheduler';\nimport { Subscription } from '../Subscription';\nimport { SchedulerAction } from '../types';\n\n/**\n * A unit of work to be executed in a `scheduler`. An action is typically\n * created from within a {@link SchedulerLike} and an RxJS user does not need to concern\n * themselves about creating and manipulating an Action.\n *\n * ```ts\n * class Action extends Subscription {\n * new (scheduler: Scheduler, work: (state?: T) => void);\n * schedule(state?: T, delay: number = 0): Subscription;\n * }\n * ```\n *\n * @class Action\n */\nexport class Action extends Subscription {\n constructor(scheduler: Scheduler, work: (this: SchedulerAction, state?: T) => void) {\n super();\n }\n /**\n * Schedules this action on its parent {@link SchedulerLike} for execution. May be passed\n * some context object, `state`. May happen at some point in the future,\n * according to the `delay` parameter, if specified.\n * @param {T} [state] Some contextual data that the `work` function uses when\n * called by the Scheduler.\n * @param {number} [delay] Time to wait before executing the work, where the\n * time unit is implicit and defined by the Scheduler.\n * @return {void}\n */\n public schedule(state?: T, delay: number = 0): Subscription {\n return this;\n }\n}\n", "import type { TimerHandle } from './timerHandle';\ntype SetIntervalFunction = (handler: () => void, timeout?: number, ...args: any[]) => TimerHandle;\ntype ClearIntervalFunction = (handle: TimerHandle) => void;\n\ninterface IntervalProvider {\n setInterval: SetIntervalFunction;\n clearInterval: ClearIntervalFunction;\n delegate:\n | {\n setInterval: SetIntervalFunction;\n clearInterval: ClearIntervalFunction;\n }\n | undefined;\n}\n\nexport const intervalProvider: IntervalProvider = {\n // When accessing the delegate, use the variable rather than `this` so that\n // the functions can be called without being bound to the provider.\n setInterval(handler: () => void, timeout?: number, ...args) {\n const { delegate } = intervalProvider;\n if (delegate?.setInterval) {\n return delegate.setInterval(handler, timeout, ...args);\n }\n return setInterval(handler, timeout, ...args);\n },\n clearInterval(handle) {\n const { delegate } = intervalProvider;\n return (delegate?.clearInterval || clearInterval)(handle as any);\n },\n delegate: undefined,\n};\n", "import { Action } from './Action';\nimport { SchedulerAction } from '../types';\nimport { Subscription } from '../Subscription';\nimport { AsyncScheduler } from './AsyncScheduler';\nimport { intervalProvider } from './intervalProvider';\nimport { arrRemove } from '../util/arrRemove';\nimport { TimerHandle } from './timerHandle';\n\nexport class AsyncAction extends Action {\n public id: TimerHandle | undefined;\n public state?: T;\n // @ts-ignore: Property has no initializer and is not definitely assigned\n public delay: number;\n protected pending: boolean = false;\n\n constructor(protected scheduler: AsyncScheduler, protected work: (this: SchedulerAction, state?: T) => void) {\n super(scheduler, work);\n }\n\n public schedule(state?: T, delay: number = 0): Subscription {\n if (this.closed) {\n return this;\n }\n\n // Always replace the current state with the new state.\n this.state = state;\n\n const id = this.id;\n const scheduler = this.scheduler;\n\n //\n // Important implementation note:\n //\n // Actions only execute once by default, unless rescheduled from within the\n // scheduled callback. This allows us to implement single and repeat\n // actions via the same code path, without adding API surface area, as well\n // as mimic traditional recursion but across asynchronous boundaries.\n //\n // However, JS runtimes and timers distinguish between intervals achieved by\n // serial `setTimeout` calls vs. a single `setInterval` call. An interval of\n // serial `setTimeout` calls can be individually delayed, which delays\n // scheduling the next `setTimeout`, and so on. `setInterval` attempts to\n // guarantee the interval callback will be invoked more precisely to the\n // interval period, regardless of load.\n //\n // Therefore, we use `setInterval` to schedule single and repeat actions.\n // If the action reschedules itself with the same delay, the interval is not\n // canceled. If the action doesn't reschedule, or reschedules with a\n // different delay, the interval will be canceled after scheduled callback\n // execution.\n //\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, delay);\n }\n\n // Set the pending flag indicating that this action has been scheduled, or\n // has recursively rescheduled itself.\n this.pending = true;\n\n this.delay = delay;\n // If this action has already an async Id, don't request a new one.\n this.id = this.id ?? this.requestAsyncId(scheduler, this.id, delay);\n\n return this;\n }\n\n protected requestAsyncId(scheduler: AsyncScheduler, _id?: TimerHandle, delay: number = 0): TimerHandle {\n return intervalProvider.setInterval(scheduler.flush.bind(scheduler, this), delay);\n }\n\n protected recycleAsyncId(_scheduler: AsyncScheduler, id?: TimerHandle, delay: number | null = 0): TimerHandle | undefined {\n // If this action is rescheduled with the same delay time, don't clear the interval id.\n if (delay != null && this.delay === delay && this.pending === false) {\n return id;\n }\n // Otherwise, if the action's delay time is different from the current delay,\n // or the action has been rescheduled before it's executed, clear the interval id\n if (id != null) {\n intervalProvider.clearInterval(id);\n }\n\n return undefined;\n }\n\n /**\n * Immediately executes this action and the `work` it contains.\n * @return {any}\n */\n public execute(state: T, delay: number): any {\n if (this.closed) {\n return new Error('executing a cancelled action');\n }\n\n this.pending = false;\n const error = this._execute(state, delay);\n if (error) {\n return error;\n } else if (this.pending === false && this.id != null) {\n // Dequeue if the action didn't reschedule itself. Don't call\n // unsubscribe(), because the action could reschedule later.\n // For example:\n // ```\n // scheduler.schedule(function doWork(counter) {\n // /* ... I'm a busy worker bee ... */\n // var originalAction = this;\n // /* wait 100ms before rescheduling the action */\n // setTimeout(function () {\n // originalAction.schedule(counter + 1);\n // }, 100);\n // }, 1000);\n // ```\n this.id = this.recycleAsyncId(this.scheduler, this.id, null);\n }\n }\n\n protected _execute(state: T, _delay: number): any {\n let errored: boolean = false;\n let errorValue: any;\n try {\n this.work(state);\n } catch (e) {\n errored = true;\n // HACK: Since code elsewhere is relying on the \"truthiness\" of the\n // return here, we can't have it return \"\" or 0 or false.\n // TODO: Clean this up when we refactor schedulers mid-version-8 or so.\n errorValue = e ? e : new Error('Scheduled action threw falsy error');\n }\n if (errored) {\n this.unsubscribe();\n return errorValue;\n }\n }\n\n unsubscribe() {\n if (!this.closed) {\n const { id, scheduler } = this;\n const { actions } = scheduler;\n\n this.work = this.state = this.scheduler = null!;\n this.pending = false;\n\n arrRemove(actions, this);\n if (id != null) {\n this.id = this.recycleAsyncId(scheduler, id, null);\n }\n\n this.delay = null!;\n super.unsubscribe();\n }\n }\n}\n", "import { Action } from './scheduler/Action';\nimport { Subscription } from './Subscription';\nimport { SchedulerLike, SchedulerAction } from './types';\nimport { dateTimestampProvider } from './scheduler/dateTimestampProvider';\n\n/**\n * An execution context and a data structure to order tasks and schedule their\n * execution. Provides a notion of (potentially virtual) time, through the\n * `now()` getter method.\n *\n * Each unit of work in a Scheduler is called an `Action`.\n *\n * ```ts\n * class Scheduler {\n * now(): number;\n * schedule(work, delay?, state?): Subscription;\n * }\n * ```\n *\n * @class Scheduler\n * @deprecated Scheduler is an internal implementation detail of RxJS, and\n * should not be used directly. Rather, create your own class and implement\n * {@link SchedulerLike}. Will be made internal in v8.\n */\nexport class Scheduler implements SchedulerLike {\n public static now: () => number = dateTimestampProvider.now;\n\n constructor(private schedulerActionCtor: typeof Action, now: () => number = Scheduler.now) {\n this.now = now;\n }\n\n /**\n * A getter method that returns a number representing the current time\n * (at the time this function was called) according to the scheduler's own\n * internal clock.\n * @return {number} A number that represents the current time. May or may not\n * have a relation to wall-clock time. May or may not refer to a time unit\n * (e.g. milliseconds).\n */\n public now: () => number;\n\n /**\n * Schedules a function, `work`, for execution. May happen at some point in\n * the future, according to the `delay` parameter, if specified. May be passed\n * some context object, `state`, which will be passed to the `work` function.\n *\n * The given arguments will be processed an stored as an Action object in a\n * queue of actions.\n *\n * @param {function(state: ?T): ?Subscription} work A function representing a\n * task, or some unit of work to be executed by the Scheduler.\n * @param {number} [delay] Time to wait before executing the work, where the\n * time unit is implicit and defined by the Scheduler itself.\n * @param {T} [state] Some contextual data that the `work` function uses when\n * called by the Scheduler.\n * @return {Subscription} A subscription in order to be able to unsubscribe\n * the scheduled work.\n */\n public schedule(work: (this: SchedulerAction, state?: T) => void, delay: number = 0, state?: T): Subscription {\n return new this.schedulerActionCtor(this, work).schedule(state, delay);\n }\n}\n", "import { Scheduler } from '../Scheduler';\nimport { Action } from './Action';\nimport { AsyncAction } from './AsyncAction';\nimport { TimerHandle } from './timerHandle';\n\nexport class AsyncScheduler extends Scheduler {\n public actions: Array> = [];\n /**\n * A flag to indicate whether the Scheduler is currently executing a batch of\n * queued actions.\n * @type {boolean}\n * @internal\n */\n public _active: boolean = false;\n /**\n * An internal ID used to track the latest asynchronous task such as those\n * coming from `setTimeout`, `setInterval`, `requestAnimationFrame`, and\n * others.\n * @type {any}\n * @internal\n */\n public _scheduled: TimerHandle | undefined;\n\n constructor(SchedulerAction: typeof Action, now: () => number = Scheduler.now) {\n super(SchedulerAction, now);\n }\n\n public flush(action: AsyncAction): void {\n const { actions } = this;\n\n if (this._active) {\n actions.push(action);\n return;\n }\n\n let error: any;\n this._active = true;\n\n do {\n if ((error = action.execute(action.state, action.delay))) {\n break;\n }\n } while ((action = actions.shift()!)); // exhaust the scheduler queue\n\n this._active = false;\n\n if (error) {\n while ((action = actions.shift()!)) {\n action.unsubscribe();\n }\n throw error;\n }\n }\n}\n", "import { AsyncAction } from './AsyncAction';\nimport { AsyncScheduler } from './AsyncScheduler';\n\n/**\n *\n * Async Scheduler\n *\n * Schedule task as if you used setTimeout(task, duration)\n *\n * `async` scheduler schedules tasks asynchronously, by putting them on the JavaScript\n * event loop queue. It is best used to delay tasks in time or to schedule tasks repeating\n * in intervals.\n *\n * If you just want to \"defer\" task, that is to perform it right after currently\n * executing synchronous code ends (commonly achieved by `setTimeout(deferredTask, 0)`),\n * better choice will be the {@link asapScheduler} scheduler.\n *\n * ## Examples\n * Use async scheduler to delay task\n * ```ts\n * import { asyncScheduler } from 'rxjs';\n *\n * const task = () => console.log('it works!');\n *\n * asyncScheduler.schedule(task, 2000);\n *\n * // After 2 seconds logs:\n * // \"it works!\"\n * ```\n *\n * Use async scheduler to repeat task in intervals\n * ```ts\n * import { asyncScheduler } from 'rxjs';\n *\n * function task(state) {\n * console.log(state);\n * this.schedule(state + 1, 1000); // `this` references currently executing Action,\n * // which we reschedule with new state and delay\n * }\n *\n * asyncScheduler.schedule(task, 3000, 0);\n *\n * // Logs:\n * // 0 after 3s\n * // 1 after 4s\n * // 2 after 5s\n * // 3 after 6s\n * ```\n */\n\nexport const asyncScheduler = new AsyncScheduler(AsyncAction);\n\n/**\n * @deprecated Renamed to {@link asyncScheduler}. Will be removed in v8.\n */\nexport const async = asyncScheduler;\n", "import { AsyncAction } from './AsyncAction';\nimport { Subscription } from '../Subscription';\nimport { QueueScheduler } from './QueueScheduler';\nimport { SchedulerAction } from '../types';\nimport { TimerHandle } from './timerHandle';\n\nexport class QueueAction extends AsyncAction {\n constructor(protected scheduler: QueueScheduler, protected work: (this: SchedulerAction, state?: T) => void) {\n super(scheduler, work);\n }\n\n public schedule(state?: T, delay: number = 0): Subscription {\n if (delay > 0) {\n return super.schedule(state, delay);\n }\n this.delay = delay;\n this.state = state;\n this.scheduler.flush(this);\n return this;\n }\n\n public execute(state: T, delay: number): any {\n return delay > 0 || this.closed ? super.execute(state, delay) : this._execute(state, delay);\n }\n\n protected requestAsyncId(scheduler: QueueScheduler, id?: TimerHandle, delay: number = 0): TimerHandle {\n // If delay exists and is greater than 0, or if the delay is null (the\n // action wasn't rescheduled) but was originally scheduled as an async\n // action, then recycle as an async action.\n\n if ((delay != null && delay > 0) || (delay == null && this.delay > 0)) {\n return super.requestAsyncId(scheduler, id, delay);\n }\n\n // Otherwise flush the scheduler starting with this action.\n scheduler.flush(this);\n\n // HACK: In the past, this was returning `void`. However, `void` isn't a valid\n // `TimerHandle`, and generally the return value here isn't really used. So the\n // compromise is to return `0` which is both \"falsy\" and a valid `TimerHandle`,\n // as opposed to refactoring every other instanceo of `requestAsyncId`.\n return 0;\n }\n}\n", "import { AsyncScheduler } from './AsyncScheduler';\n\nexport class QueueScheduler extends AsyncScheduler {\n}\n", "import { QueueAction } from './QueueAction';\nimport { QueueScheduler } from './QueueScheduler';\n\n/**\n *\n * Queue Scheduler\n *\n * Put every next task on a queue, instead of executing it immediately\n *\n * `queue` scheduler, when used with delay, behaves the same as {@link asyncScheduler} scheduler.\n *\n * When used without delay, it schedules given task synchronously - executes it right when\n * it is scheduled. However when called recursively, that is when inside the scheduled task,\n * another task is scheduled with queue scheduler, instead of executing immediately as well,\n * that task will be put on a queue and wait for current one to finish.\n *\n * This means that when you execute task with `queue` scheduler, you are sure it will end\n * before any other task scheduled with that scheduler will start.\n *\n * ## Examples\n * Schedule recursively first, then do something\n * ```ts\n * import { queueScheduler } from 'rxjs';\n *\n * queueScheduler.schedule(() => {\n * queueScheduler.schedule(() => console.log('second')); // will not happen now, but will be put on a queue\n *\n * console.log('first');\n * });\n *\n * // Logs:\n * // \"first\"\n * // \"second\"\n * ```\n *\n * Reschedule itself recursively\n * ```ts\n * import { queueScheduler } from 'rxjs';\n *\n * queueScheduler.schedule(function(state) {\n * if (state !== 0) {\n * console.log('before', state);\n * this.schedule(state - 1); // `this` references currently executing Action,\n * // which we reschedule with new state\n * console.log('after', state);\n * }\n * }, 0, 3);\n *\n * // In scheduler that runs recursively, you would expect:\n * // \"before\", 3\n * // \"before\", 2\n * // \"before\", 1\n * // \"after\", 1\n * // \"after\", 2\n * // \"after\", 3\n *\n * // But with queue it logs:\n * // \"before\", 3\n * // \"after\", 3\n * // \"before\", 2\n * // \"after\", 2\n * // \"before\", 1\n * // \"after\", 1\n * ```\n */\n\nexport const queueScheduler = new QueueScheduler(QueueAction);\n\n/**\n * @deprecated Renamed to {@link queueScheduler}. Will be removed in v8.\n */\nexport const queue = queueScheduler;\n", "import { AsyncAction } from './AsyncAction';\nimport { AnimationFrameScheduler } from './AnimationFrameScheduler';\nimport { SchedulerAction } from '../types';\nimport { animationFrameProvider } from './animationFrameProvider';\nimport { TimerHandle } from './timerHandle';\n\nexport class AnimationFrameAction extends AsyncAction {\n constructor(protected scheduler: AnimationFrameScheduler, protected work: (this: SchedulerAction, state?: T) => void) {\n super(scheduler, work);\n }\n\n protected requestAsyncId(scheduler: AnimationFrameScheduler, id?: TimerHandle, delay: number = 0): TimerHandle {\n // If delay is greater than 0, request as an async action.\n if (delay !== null && delay > 0) {\n return super.requestAsyncId(scheduler, id, delay);\n }\n // Push the action to the end of the scheduler queue.\n scheduler.actions.push(this);\n // If an animation frame has already been requested, don't request another\n // one. If an animation frame hasn't been requested yet, request one. Return\n // the current animation frame request id.\n return scheduler._scheduled || (scheduler._scheduled = animationFrameProvider.requestAnimationFrame(() => scheduler.flush(undefined)));\n }\n\n protected recycleAsyncId(scheduler: AnimationFrameScheduler, id?: TimerHandle, delay: number = 0): TimerHandle | undefined {\n // If delay exists and is greater than 0, or if the delay is null (the\n // action wasn't rescheduled) but was originally scheduled as an async\n // action, then recycle as an async action.\n if (delay != null ? delay > 0 : this.delay > 0) {\n return super.recycleAsyncId(scheduler, id, delay);\n }\n // If the scheduler queue has no remaining actions with the same async id,\n // cancel the requested animation frame and set the scheduled flag to\n // undefined so the next AnimationFrameAction will request its own.\n const { actions } = scheduler;\n if (id != null && actions[actions.length - 1]?.id !== id) {\n animationFrameProvider.cancelAnimationFrame(id as number);\n scheduler._scheduled = undefined;\n }\n // Return undefined so the action knows to request a new async id if it's rescheduled.\n return undefined;\n }\n}\n", "import { AsyncAction } from './AsyncAction';\nimport { AsyncScheduler } from './AsyncScheduler';\n\nexport class AnimationFrameScheduler extends AsyncScheduler {\n public flush(action?: AsyncAction): void {\n this._active = true;\n // The async id that effects a call to flush is stored in _scheduled.\n // Before executing an action, it's necessary to check the action's async\n // id to determine whether it's supposed to be executed in the current\n // flush.\n // Previous implementations of this method used a count to determine this,\n // but that was unsound, as actions that are unsubscribed - i.e. cancelled -\n // are removed from the actions array and that can shift actions that are\n // scheduled to be executed in a subsequent flush into positions at which\n // they are executed within the current flush.\n const flushId = this._scheduled;\n this._scheduled = undefined;\n\n const { actions } = this;\n let error: any;\n action = action || actions.shift()!;\n\n do {\n if ((error = action.execute(action.state, action.delay))) {\n break;\n }\n } while ((action = actions[0]) && action.id === flushId && actions.shift());\n\n this._active = false;\n\n if (error) {\n while ((action = actions[0]) && action.id === flushId && actions.shift()) {\n action.unsubscribe();\n }\n throw error;\n }\n }\n}\n", "import { AnimationFrameAction } from './AnimationFrameAction';\nimport { AnimationFrameScheduler } from './AnimationFrameScheduler';\n\n/**\n *\n * Animation Frame Scheduler\n *\n * Perform task when `window.requestAnimationFrame` would fire\n *\n * When `animationFrame` scheduler is used with delay, it will fall back to {@link asyncScheduler} scheduler\n * behaviour.\n *\n * Without delay, `animationFrame` scheduler can be used to create smooth browser animations.\n * It makes sure scheduled task will happen just before next browser content repaint,\n * thus performing animations as efficiently as possible.\n *\n * ## Example\n * Schedule div height animation\n * ```ts\n * // html:
    \n * import { animationFrameScheduler } from 'rxjs';\n *\n * const div = document.querySelector('div');\n *\n * animationFrameScheduler.schedule(function(height) {\n * div.style.height = height + \"px\";\n *\n * this.schedule(height + 1); // `this` references currently executing Action,\n * // which we reschedule with new state\n * }, 0, 0);\n *\n * // You will see a div element growing in height\n * ```\n */\n\nexport const animationFrameScheduler = new AnimationFrameScheduler(AnimationFrameAction);\n\n/**\n * @deprecated Renamed to {@link animationFrameScheduler}. Will be removed in v8.\n */\nexport const animationFrame = animationFrameScheduler;\n", "import { Observable } from '../Observable';\nimport { SchedulerLike } from '../types';\n\n/**\n * A simple Observable that emits no items to the Observer and immediately\n * emits a complete notification.\n *\n * Just emits 'complete', and nothing else.\n *\n * ![](empty.png)\n *\n * A simple Observable that only emits the complete notification. It can be used\n * for composing with other Observables, such as in a {@link mergeMap}.\n *\n * ## Examples\n *\n * Log complete notification\n *\n * ```ts\n * import { EMPTY } from 'rxjs';\n *\n * EMPTY.subscribe({\n * next: () => console.log('Next'),\n * complete: () => console.log('Complete!')\n * });\n *\n * // Outputs\n * // Complete!\n * ```\n *\n * Emit the number 7, then complete\n *\n * ```ts\n * import { EMPTY, startWith } from 'rxjs';\n *\n * const result = EMPTY.pipe(startWith(7));\n * result.subscribe(x => console.log(x));\n *\n * // Outputs\n * // 7\n * ```\n *\n * Map and flatten only odd numbers to the sequence `'a'`, `'b'`, `'c'`\n *\n * ```ts\n * import { interval, mergeMap, of, EMPTY } from 'rxjs';\n *\n * const interval$ = interval(1000);\n * const result = interval$.pipe(\n * mergeMap(x => x % 2 === 1 ? of('a', 'b', 'c') : EMPTY),\n * );\n * result.subscribe(x => console.log(x));\n *\n * // Results in the following to the console:\n * // x is equal to the count on the interval, e.g. (0, 1, 2, 3, ...)\n * // x will occur every 1000ms\n * // if x % 2 is equal to 1, print a, b, c (each on its own)\n * // if x % 2 is not equal to 1, nothing will be output\n * ```\n *\n * @see {@link Observable}\n * @see {@link NEVER}\n * @see {@link of}\n * @see {@link throwError}\n */\nexport const EMPTY = new Observable((subscriber) => subscriber.complete());\n\n/**\n * @param scheduler A {@link SchedulerLike} to use for scheduling\n * the emission of the complete notification.\n * @deprecated Replaced with the {@link EMPTY} constant or {@link scheduled} (e.g. `scheduled([], scheduler)`). Will be removed in v8.\n */\nexport function empty(scheduler?: SchedulerLike) {\n return scheduler ? emptyScheduled(scheduler) : EMPTY;\n}\n\nfunction emptyScheduled(scheduler: SchedulerLike) {\n return new Observable((subscriber) => scheduler.schedule(() => subscriber.complete()));\n}\n", "import { SchedulerLike } from '../types';\nimport { isFunction } from './isFunction';\n\nexport function isScheduler(value: any): value is SchedulerLike {\n return value && isFunction(value.schedule);\n}\n", "import { SchedulerLike } from '../types';\nimport { isFunction } from './isFunction';\nimport { isScheduler } from './isScheduler';\n\nfunction last(arr: T[]): T | undefined {\n return arr[arr.length - 1];\n}\n\nexport function popResultSelector(args: any[]): ((...args: unknown[]) => unknown) | undefined {\n return isFunction(last(args)) ? args.pop() : undefined;\n}\n\nexport function popScheduler(args: any[]): SchedulerLike | undefined {\n return isScheduler(last(args)) ? args.pop() : undefined;\n}\n\nexport function popNumber(args: any[], defaultValue: number): number {\n return typeof last(args) === 'number' ? args.pop()! : defaultValue;\n}\n", "export const isArrayLike = ((x: any): x is ArrayLike => x && typeof x.length === 'number' && typeof x !== 'function');", "import { isFunction } from \"./isFunction\";\n\n/**\n * Tests to see if the object is \"thennable\".\n * @param value the object to test\n */\nexport function isPromise(value: any): value is PromiseLike {\n return isFunction(value?.then);\n}\n", "import { InteropObservable } from '../types';\nimport { observable as Symbol_observable } from '../symbol/observable';\nimport { isFunction } from './isFunction';\n\n/** Identifies an input as being Observable (but not necessary an Rx Observable) */\nexport function isInteropObservable(input: any): input is InteropObservable {\n return isFunction(input[Symbol_observable]);\n}\n", "import { isFunction } from './isFunction';\n\nexport function isAsyncIterable(obj: any): obj is AsyncIterable {\n return Symbol.asyncIterator && isFunction(obj?.[Symbol.asyncIterator]);\n}\n", "/**\n * Creates the TypeError to throw if an invalid object is passed to `from` or `scheduled`.\n * @param input The object that was passed.\n */\nexport function createInvalidObservableTypeError(input: any) {\n // TODO: We should create error codes that can be looked up, so this can be less verbose.\n return new TypeError(\n `You provided ${\n input !== null && typeof input === 'object' ? 'an invalid object' : `'${input}'`\n } where a stream was expected. You can provide an Observable, Promise, ReadableStream, Array, AsyncIterable, or Iterable.`\n );\n}\n", "export function getSymbolIterator(): symbol {\n if (typeof Symbol !== 'function' || !Symbol.iterator) {\n return '@@iterator' as any;\n }\n\n return Symbol.iterator;\n}\n\nexport const iterator = getSymbolIterator();\n", "import { iterator as Symbol_iterator } from '../symbol/iterator';\nimport { isFunction } from './isFunction';\n\n/** Identifies an input as being an Iterable */\nexport function isIterable(input: any): input is Iterable {\n return isFunction(input?.[Symbol_iterator]);\n}\n", "import { ReadableStreamLike } from '../types';\nimport { isFunction } from './isFunction';\n\nexport async function* readableStreamLikeToAsyncGenerator(readableStream: ReadableStreamLike): AsyncGenerator {\n const reader = readableStream.getReader();\n try {\n while (true) {\n const { value, done } = await reader.read();\n if (done) {\n return;\n }\n yield value!;\n }\n } finally {\n reader.releaseLock();\n }\n}\n\nexport function isReadableStreamLike(obj: any): obj is ReadableStreamLike {\n // We don't want to use instanceof checks because they would return\n // false for instances from another Realm, like an