add languageserver support

[pngdrift]

At the moment, autocomplete doesn't work correctly, all kinds of options are offered that do not even fit, and somewhere it doesn't work at all, idk why.

[Fancy2209]

What do you mean by options that don't fit? Do you mean the Apache Royale specific options?

[pngdrift]

As it turned out, this is due to an error in the as3mxml language-server

stderr: Feb 08, 2025 5:45:59 PM org.eclipse.lsp4j.jsonrpc.RemoteEndpoint handleNotification
stderr: WARNING: Notification threw an exception: {
stderr: "jsonrpc": "2.0",
stderr: "method": "textDocument/didChange",
stderr: "params": {
stderr: "textDocument": {
stderr: "version": 1,
stderr: "uri": "file:///home/aivaz/Documents/ProTLVK/src/pngdrift/test/BlownOffTurretPhysics.as"
stderr: },
stderr: "contentChanges": [
stderr: {
stderr: "range": {
stderr: "start": {
stderr: "line": 120,
stderr: "character": 64
stderr: },
stderr: "end": {
stderr: "line": 120,
stderr: "character": 65
stderr: }
stderr: },
stderr: "text": ""
stderr: }
stderr: ]
stderr: }
stderr: }
stderr: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
stderr: at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:67)
stderr: at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.notify(GenericEndpoint.java:152)
stderr: at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleNotification(RemoteEndpoint.java:220)
stderr: at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:187)
stderr: at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:194)
stderr: at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:94)
stderr: at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:113)
stderr: at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
stderr: at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
stderr: at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
stderr: at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
stderr: at java.base/java.lang.Thread.run(Thread.java:1575)
stderr: Caused by: java.lang.reflect.InvocationTargetException
stderr: at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:115)
stderr: at java.base/java.lang.reflect.Method.invoke(Method.java:580)
stderr: at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$null$0(GenericEndpoint.java:65)
stderr: ... 11 more
stderr: Caused by: java.lang.NullPointerException: Cannot invoke "java.lang.Integer.intValue()" because the return value of "org.eclipse.lsp4j.TextDocumentContentChangeEvent.getRangeLength()" is null
stderr: at com.as3mxml.vscode.utils.FileTracker.patch(FileTracker.java:131)
stderr: at com.as3mxml.vscode.utils.FileTracker.changeFile(FileTracker.java:67)
stderr: at com.as3mxml.vscode.ActionScriptServices.didChange(ActionScriptServices.java:924)
stderr: at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
stderr: ... 13 more
stderr:

It should be fixed with the acceptance of BowlerHatLLC/vscode-as3mxml#792