[gardening] Fix accidental trailing whitespace.

Author: practicalswift

Diff for: CMakeLists.txt

@@ -506,20 +506,20 @@ if(XCODE)
 endif()
 
 # FIXME: the parameters we specify in SWIFT_SDKS are lacking architecture specifics,
-# so we need to hard-code it. For example, the SDK for Android is just 'ANDROID', 
-# which we assume below to be armv7. 
+# so we need to hard-code it. For example, the SDK for Android is just 'ANDROID',
+# which we assume below to be armv7.
 # The iOS SDKs all have their architectures hardcoded because they are just specified by name (e.g. 'IOS' or 'WATCHOS').
 # We can't cross-compile the standard library for another linux architecture,
 # because the SDK list would just be 'LINUX' and we couldn't disambiguate it from the host.
-# 
+#
 # To fix it, we would need to append the architecture to the SDKs,
 # for example: 'OSX-x86_64;IOS-armv7;...etc'.
 # We could easily do that - we have all of that information in build-script-impl.
 # Also, we would need to be provided with the sysroot for each SDK (see SWIFT_ANDROID_SDK_PATH/SWIFT_SDK_ANDROID_PATH).
 # Darwin targets cheat and use `xcrun`.
 
 if("${SWIFT_HOST_VARIANT_SDK}" STREQUAL "LINUX")
-  
+
   set(CMAKE_EXECUTABLE_FORMAT "ELF")
   set(SWIFT_HOST_VARIANT "linux" CACHE STRING
       "Deployment OS for Swift host tools (the compiler) [linux].")
@@ -550,7 +550,7 @@ if("${SWIFT_HOST_VARIANT_SDK}" STREQUAL "LINUX")
   endif()
 
 elseif("${SWIFT_HOST_VARIANT_SDK}" STREQUAL "FREEBSD")
-  
+
   set(CMAKE_EXECUTABLE_FORMAT "ELF")
   set(SWIFT_HOST_VARIANT "freebsd" CACHE STRING
       "Deployment OS for Swift host tools (the compiler) [freebsd].")
@@ -563,13 +563,13 @@ elseif("${SWIFT_HOST_VARIANT_SDK}" STREQUAL "FREEBSD")
     "x86_64-unknown-freebsd${FREEBSD_SYSTEM_VERSION}" "/")
   set(SWIFT_PRIMARY_VARIANT_SDK_default  "${SWIFT_HOST_VARIANT_SDK}")
   set(SWIFT_PRIMARY_VARIANT_ARCH_default "x86_64")
-  
+
 elseif("${SWIFT_HOST_VARIANT_SDK}" STREQUAL "CYGWIN")
-  
+
   # set(CMAKE_EXECUTABLE_FORMAT "ELF")
   set(SWIFT_HOST_VARIANT "windows" CACHE STRING
       "Deployment OS for Swift host tools (the compiler) [windows].")
-  
+
   configure_sdk_unix(CYGWIN "Cygwin" "windows" "cygwin" "windows" "x86_64-unknown-windows-cygnus" "/")
   set(SWIFT_PRIMARY_VARIANT_SDK_default  "${SWIFT_HOST_VARIANT_SDK}")
   set(SWIFT_PRIMARY_VARIANT_ARCH_default "x86_64")
@@ -579,7 +579,7 @@ elseif("${SWIFT_HOST_VARIANT_SDK}" MATCHES "(OSX|IOS*|TVOS*|WATCHOS*)")
   set(SWIFT_HOST_VARIANT "macosx" CACHE STRING
       "Deployment OS for Swift host tools (the compiler) [macosx, iphoneos].")
 
-  # Display Xcode toolchain version. 
+  # Display Xcode toolchain version.
   # The SDK configuration below prints each SDK version.
   execute_process(
     COMMAND "xcodebuild" "-version"

Diff for: LICENSE.txt

@@ -200,8 +200,8 @@
     See the License for the specific language governing permissions and
     limitations under the License.
 
-   
-   
+
+
 ## Runtime Library Exception to the Apache 2.0 License: ##
 
 

Diff for: apinotes/CoreGraphics.apinotes

@@ -90,7 +90,7 @@ Functions:
   # replaced by Equatable / ==
   SwiftName: CGAffineTransform.__equalTo(self:_:)
   SwiftPrivate: true
-  
+
 # CGBitmapContext
 - Name: CGBitmapContextCreateWithData
   SwiftName: CGContext.init(data:width:height:bitsPerComponent:bytesPerRow:space:bitmapInfo:releaseCallback:releaseInfo:)
@@ -114,7 +114,7 @@ Functions:
   SwiftName: getter:CGContext.alphaInfo(self:)
 - Name: CGBitmapContextCreateImage
   SwiftName: CGContext.makeImage(self:)
-  
+
 # CGColor
 #
 - Name: CGColorCreate
@@ -409,7 +409,7 @@ Functions:
 - Name: CGGetLastMouseDelta
   # replaced by a version that returns CGVector instead of using out-pointers
   SwiftPrivate: true
-  
+
 # CGEvent
 - Name: CGEventCreateFromData
   SwiftName: CGEvent.init(withDataAllocator:data:)
@@ -421,7 +421,7 @@ Functions:
   SwiftName: CGEvent.postToPid(_:self:)
 - Name: CGEventCreateSourceFromEvent
   SwiftName: CGEventSource.init(event:)
-  
+
 # CGFont
 - Name: CGFontCreateWithDataProvider
   SwiftName: CGFont.init(_:)
@@ -443,7 +443,7 @@ Functions:
   SwiftName: CGFont.table(self:for:)
 - Name: CGFontCreateCopyWithVariations
   SwiftName: CGFont.copy(self:withVariations:)
-  
+
 # CGGeometry
 - Name: CGPointCreateDictionaryRepresentation
   SwiftName: getter:CGPoint.dictionaryRepresentation(self:)
@@ -474,7 +474,7 @@ Functions:
   # hide in favor of an init (can't map to initializer because out-pointer)
   SwiftName: CGRect.__setFromDictionaryRepresentation(_:_:)
   SwiftPrivate: true
-  
+
 # CGGradient
 - Name: CGGradientCreateWithColorComponents
   SwiftName: CGGradient.init(colorSpace:colorComponents:locations:count:)
@@ -557,7 +557,7 @@ Functions:
 # CGPSConverter
 - Name: CGPSConverterIsConverting
   SwiftName: getter:CGPSConverter.isConverting(self:)
-  
+
 # CGPath
 - Name: CGPathCreateCopy
   SwiftName: CGPath.copy(self:)

Diff for: apinotes/GameplayKit.apinotes

@@ -206,7 +206,7 @@ Classes:
   - Selector: 'shuffledArrayWithRandomSource:'
     SwiftName: shuffled(using:)
     MethodKind: Instance
-- Name: GKARC4RandomSource 
+- Name: GKARC4RandomSource
   Methods:
   - Selector: 'dropValuesWithCount:'
     SwiftName: dropValues(_:)

Diff for: apinotes/README.md

@@ -11,7 +11,7 @@ API notes are organized into a set of `.apinotes` files. Each
 written in YAML (FIXME: to be) described below. These YAML sources
 must be manually compiled into a binary representation (`.apinotesc`)
 that the Swift compiler will lazily load when it builds code, also
-described below. 
+described below.
 
 # API Notes YAML Format
 
@@ -42,7 +42,7 @@ When updating API notes for a system module, recompile the API notes
 and place the result in the appropriate directories listed above. The
 Swift compiler itself need not be recompiled except in rare cases
 where the changes affect how the SDK overlays are built. To recompile
-API notes for a given module `$MODULE` and place them into their 
+API notes for a given module `$MODULE` and place them into their
 
 ### OS X
 ```

Diff for: cmake/modules/AddSwift.cmake

@@ -95,7 +95,7 @@ endfunction()
 #   ANALYZE_CODE_COVERAGE analyze_code_coverage
 #   RESULT_VAR_NAME result_var_name
 #   DEPLOYMENT_VERSION_IOS deployment_version_ios # If provided, overrides the default value of the iOS deployment target set by the Swift project for this compilation only.
-# 
+#
 # )
 function(_add_variant_c_compile_link_flags)
   set(oneValueArgs SDK ARCH BUILD_TYPE RESULT_VAR_NAME ENABLE_LTO ANALYZE_CODE_COVERAGE DEPLOYMENT_VERSION_IOS)
@@ -104,7 +104,7 @@ function(_add_variant_c_compile_link_flags)
     "${oneValueArgs}"
     ""
     ${ARGN})
-  
+
   set(result
     ${${CFLAGS_RESULT_VAR_NAME}}
     "-target" "${SWIFT_SDK_${CFLAGS_SDK}_ARCH_${CFLAGS_ARCH}_TRIPLE}")
@@ -1297,12 +1297,12 @@ function(add_swift_library name)
     message(FATAL_ERROR
         "Either SHARED, STATIC, or OBJECT_LIBRARY must be specified")
   endif()
-  
+
   if(SWIFTLIB_TARGET_LIBRARY)
     if(NOT SWIFT_BUILD_RUNTIME_WITH_HOST_COMPILER)
       list(APPEND SWIFTLIB_DEPENDS clang)
     endif()
-    
+
     # If we are building this library for targets, loop through the various
     # SDKs building the variants of this library.
     list_intersect(
@@ -1675,7 +1675,7 @@ function(_add_swift_executable_single name)
   # Determine compiler flags.
   set(c_compile_flags)
   set(link_flags)
-  
+
   # Add variant-specific flags.
   _add_variant_c_compile_flags(
     SDK "${SWIFTEXE_SINGLE_SDK}"

Diff for: cmake/modules/FindICU.cmake

@@ -8,7 +8,7 @@ set(ICU_REQUIRED)
 foreach(MODULE ${ICU_FIND_COMPONENTS})
   string(TOUPPER "${MODULE}" MODULE)
   string(TOLOWER "${MODULE}" module)
-  list(APPEND ICU_REQUIRED 
+  list(APPEND ICU_REQUIRED
     ICU_${MODULE}_INCLUDE_DIR ICU_${MODULE}_LIBRARIES)
 
   pkg_check_modules(PC_ICU_${MODULE} QUIET icu-${module})

Diff for: docs/ABI.rst

@@ -29,7 +29,7 @@ Structs and tuples currently share the same layout algorithm, noted as the
 is as follows:
 
 - Start with a **size** of **0** and an **alignment** of **1**.
-- Iterate through the fields, in element order for tuples, or in ``var`` 
+- Iterate through the fields, in element order for tuples, or in ``var``
   declaration order for structs. For each field:
 
   * Update **size** by rounding up to the **alignment of the field**, that is,
@@ -41,7 +41,7 @@ is as follows:
     **alignment of the field**.
 
 - The final **size** and **alignment** are the size and alignment of the
-  aggregate. The **stride** of the type is the final **size** rounded up to 
+  aggregate. The **stride** of the type is the final **size** rounded up to
   **alignment**.
 
 Note that this differs from C or LLVM's normal layout rules in that *size*
@@ -852,7 +852,7 @@ The first identifier in a ``<private-decl-name>`` is a string that represents
 the file the original declaration came from. It should be considered unique
 within the enclosing module. The second identifier is the name of the entity.
 
-Not all declarations marked ``private`` declarations will use the 
+Not all declarations marked ``private`` declarations will use the
 ``<private-decl-name>`` mangling; if the entity's context is enough to uniquely
 identify the entity, the simple ``identifier`` form is preferred.
 
@@ -929,7 +929,7 @@ Types
   type ::= 'b' type type                     // objc block function type
   type ::= 'c' type type                     // C function pointer type
   type ::= 'F' throws-annotation? type type  // function type
-  type ::= 'f' throws-annotation? type type  // uncurried function type  
+  type ::= 'f' throws-annotation? type type  // uncurried function type
   type ::= 'G' type <type>+ '_'              // generic type application
   type ::= 'K' type type                     // @auto_closure function type
   type ::= 'M' type                          // metatype without representation

Diff for: docs/AccessControl.rst

@@ -25,7 +25,7 @@ This optimizes for the most common case—a single-target application
 project—while not accidentally revealing entities to clients of a framework
 module.
 
-.. warning:: This document has not yet been updated for SE-0117, which adds the 
+.. warning:: This document has not yet been updated for SE-0117, which adds the
   "open" level of access.
 
 
@@ -220,7 +220,7 @@ functionality beyond ``private``, ``fileprivate``, ``internal``, and ``public``.
   limited with regards to extensions. Beyond that, however, a "class-only"
   limit forces code to be declared within the class that might otherwise
   naturally be a top-level helper or an extension method on another type.
-  
+
   ``private`` and ``fileprivate`` serve the use case of limiting access to the
   implementation details of a class (even from the rest of the module!) while
   not tying access to the notion of type.
@@ -232,7 +232,7 @@ functionality beyond ``private``, ``fileprivate``, ``internal``, and ``public``.
   plans for resilient APIs. Additionally, it increases the complexity of the
   access control model for both the compiler and for developers, and like
   "class-only" it is not immediately clear how it interacts with extensions.
-  
+
   Though it is not compiler-enforced, members that might be considered
   "protected" are effectively publicly accessible, and thus should be marked
   ``public`` in Swift. They can still be documented as intended for overriding

Diff for: docs/CMakeLists.txt

@@ -42,18 +42,18 @@ if(LITRE_EXECUTABLE)
   set(subdir_CMakeLists)
 
   foreach(rst ${rst_files})
-    # Prepare a testing directory containing a CMakeLists.txt 
+    # Prepare a testing directory containing a CMakeLists.txt
     # and example files extracted from the .rst
     set(test_dir "litre-tests/${rst}.litre-tests")
 
     add_custom_command(
-      OUTPUT 
+      OUTPUT
         ${test_dir}/CMakeLists.txt
-      COMMAND 
-        ${LITRE_EXECUTABLE} 
+      COMMAND
+        ${LITRE_EXECUTABLE}
         --default_compiler=${CMAKE_BINARY_DIR}/bin/swift
         "--dump_dir=${test_dir}"
-        --traceback 
+        --traceback
         --report=severe  # suppress most .rst errors.  We have lots of them.
         ${CMAKE_CURRENT_SOURCE_DIR}/${rst}
       DEPENDS
@@ -71,7 +71,7 @@ if(LITRE_EXECUTABLE)
     OUTPUT
       litre-top-CMakeLists.cmake
     COMMAND
-      ${CMAKE_COMMAND} -DOUTPUT=litre-top-CMakeLists.cmake 
+      ${CMAKE_COMMAND} -DOUTPUT=litre-top-CMakeLists.cmake
                       -DSOURCE_DIR=${CMAKE_CURRENT_SOURCE_DIR}
           -P ${CMAKE_CURRENT_SOURCE_DIR}/GenerateTopLevelLitreCMakeLists.cmake
           ${rst_files}
@@ -134,7 +134,7 @@ if (LLVM_ENABLE_DOXYGEN)
 if (DOXYGEN_FOUND)
   set(abs_srcdir ${CMAKE_CURRENT_SOURCE_DIR})
   set(abs_builddir ${CMAKE_CURRENT_BINARY_DIR})
-  
+
   if (HAVE_DOT)
     set(DOT ${LLVM_PATH_DOT})
   endif()
@@ -152,7 +152,7 @@ if (DOXYGEN_FOUND)
     set(enable_external_search "NO")
     set(extra_search_mappings "")
   endif()
-  
+
   configure_file(${CMAKE_CURRENT_SOURCE_DIR}/doxygen.cfg.in
     ${CMAKE_CURRENT_BINARY_DIR}/doxygen.cfg @ONLY)
 
@@ -164,11 +164,11 @@ if (DOXYGEN_FOUND)
   set(enable_server_based_search)
   set(enable_external_search)
   set(extra_search_mappings)
-  
+
   add_custom_target(doxygen-swift
     ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/doxygen.cfg
     WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
-    COMMENT "Generating swift doxygen documentation." VERBATIM)  
+    COMMENT "Generating swift doxygen documentation." VERBATIM)
 
   if(LLVM_BUILD_DOCS)
     add_dependencies(doxygen doxygen-swift)

Diff for: docs/CallingConvention.rst

@@ -59,8 +59,8 @@ of an l-value, but Swift does, so it's pertinent.
 In general, the terms "pass-by-X" and "call-by-X" are used
 interchangeably.  It's unfortunate, because these conventions are
 argument specific, and functions can be passed multiple arguments
-that are each handled in a different way.  As such, we'll prefer 
-"pass-by-X" for consistency and to emphasize that these conventions 
+that are each handled in a different way.  As such, we'll prefer
+"pass-by-X" for consistency and to emphasize that these conventions
 are argument-specific.
 
 Pass-by-reference

Diff for: docs/ContinuousIntegration.md

@@ -70,8 +70,8 @@ A smoke test on Linux does the following:
 
         Platform     | Comment | Check Status
         ------------ | ------- | ------------
-        All supported platforms     | @swift-ci Please test                         | Swift Test Linux Platform (smoke test)<br>Swift Test OS X Platform (smoke test)<br>Swift Test Linux Platform<br>Swift Test OS X Platform<br>  
-        All supported platforms     | @swift-ci Please clean test                   | Swift Test Linux Platform (smoke test)<br>Swift Test OS X Platform (smoke test)<br>Swift Test Linux Platform<br>Swift Test OS X Platform<br>  
+        All supported platforms     | @swift-ci Please test                         | Swift Test Linux Platform (smoke test)<br>Swift Test OS X Platform (smoke test)<br>Swift Test Linux Platform<br>Swift Test OS X Platform<br>
+        All supported platforms     | @swift-ci Please clean test                   | Swift Test Linux Platform (smoke test)<br>Swift Test OS X Platform (smoke test)<br>Swift Test Linux Platform<br>Swift Test OS X Platform<br>
         All supported platforms     | @swift-ci Please test and merge               | Swift Test Linux Platform (smoke test)<br>Swift Test OS X Platform (smoke test)<br> Swift Test Linux Platform <br>Swift Test OS X Platform
         All supported platforms     | @swift-ci Please clean test and merge               | Swift Test Linux Platform (smoke test)<br>Swift Test OS X Platform (smoke test)<br> Swift Test Linux Platform <br>Swift Test OS X Platform
         OS X platform               | @swift-ci Please test OS X platform           | Swift Test OS X Platform (smoke test)<br>Swift Test OS X Platform
@@ -123,9 +123,9 @@ A validation test on Linux does the following:
 
 ## Cross Repository Testing
 
-Simply provide the URL from corresponding pull requests in the same comment as "@swift-ci Please test" phrase. List all of the pull requests and then provide the specific test phrase you would like to trigger. Currently, it will only merge the main pull request you requested testing from as opposed to all of the PR's. 
+Simply provide the URL from corresponding pull requests in the same comment as "@swift-ci Please test" phrase. List all of the pull requests and then provide the specific test phrase you would like to trigger. Currently, it will only merge the main pull request you requested testing from as opposed to all of the PR's.
 
-For example:   
+For example:
 
 ```
 Please test with following pull request:

Diff for: docs/DependencyAnalysis.rst

@@ -20,7 +20,7 @@ to is tantamount to a debug-time miscompile!
 Kinds of Dependency
 ===================
 
-There are four major kinds of dependency between files: 
+There are four major kinds of dependency between files:
 
 - ``top-level``: use of an unqualified name that is looked up at module scope,
   and definition of a name at module scope. This includes free functions,

Diff for: docs/Driver.md

@@ -270,10 +270,10 @@ past that, so:
 
 1. Generate an output file map that contains all the per-file outputs you care
    about. Most likely this is just the object files and incremental build
-   dependency files; everything else is an intermediate. (There should probably 
+   dependency files; everything else is an intermediate. (There should probably
    be a tool that does this, perhaps built on what the package manager does.)
 
-2. Set TMPDIR to somewhere you don't mind uninteresting intermediate files 
+2. Set TMPDIR to somewhere you don't mind uninteresting intermediate files
    going.
 
 3. Do one of the following: