version 1.2 (#93)

* initial working language server
* first hacky version of source parsing and type checking
* first iteration of method body parser
* add support for prefix/postfix inc expressions
* add basic support for parsing new expressions
* different attempt to parse using collapsable text ranges
* fix parsing of binary operstors following a bracket expression
* updated validation to use new JavaTypes module instead of MTIs
* add support for array-literal expressions
* fix || and && not being tokenized as operators allow float literals starting with dot
* add new method body parser to use direct linear parsing
* add super as an object literal
* fix interface constructors check constructor type modifiers
* fix assignment operator types
* Fix resolving of enclosed type identifiers
* add default constructor for class types with no explicit constructors
* add missing constructor validator
* add constructor parameters to list of resolvable types
* update SourceMethod to pass name in super constructor
* add Any* classes to reduce cascading errors
* update method call parameter checking use isTypeAssignable instead of getParameterCompatibleTypeSignatures
* tidy up isTypeAssignable allow class equivilents for primitives
* add more info when methods/ctrs cannot be matched
* allow interfaces to be cast to class instances
* use isTypeAssignable for checking branch test expressions
* allow AnyValue to be a constant value
* split shift operators from bitwise operators
* add support for literal numbers to be assignable to multiple primtive types
* clear diagnostics when document is closed
* update check for cast expression
* casting only applies to qualified term not a whole expression
* allow all primitive-number-type casts
* add support for synchronized statement
* update primitive type compatibility
* allow null to be cast to any non-primitve
* use better regex for string literals
* allow character literals to be assigned to number types
* add support for array qualifiers after a variable name
* make sure any long specifier is stripped from a bigint value
* improve invalid array expression message add AnyType array element to prevent cascading errors
* make default a modifer keyword for interface default method support
* initial support for wildcard type arguments
* fix parse issue with nested generic types
* allow generic types to be assigned to inherited types with compatible type arguments
* allow unicode characters, $ and _ in identifiers
* map primitive types to their boxed versions for class member
* support assert statement
* allow unicode char literals
* make type parser and body parser use same tokenizer
* reuse parsed tokens instead of tokenizing each method body
* re-add throws as a keyword
* treat default and synchronized as modifiers
* add SourceInitialiser support
* refactor to prepare for merging with type parsing
* add support for array qualifiers in type identifiers
* pass scoped type instead of method to typeIdent
* update ResolvableType to use same type resolving as method body parsing
* add support for post-name array qualifiers in fields and parameters
* post-name array qualifiers in method decls
* add type variables to SourceMethod
* initial attempt to support type variable arguments in methods
* specialise methods with type variables
* don't require default interface methods to be implemented
* make variable arity parameters an array type
* tidy array constructors and fix some warnings
* update isCallCompatible to handle variable arity calls
* improve assert statement support
* parse labels and break/continue targets
* refactor new term qualifiers
* add support for generic inferred-type arguments
* improve modifier checks for interface types
* improve reporting of unresolved type errors
* fix type checking of field and method declarations
* add missng strictfp modifier
* refactor in preparation for parsing local types
* replace Locals with scopeable MethodDeclarations to allow labels and types to be stored
* initial changes to support local type declarations
* update to use new set of SourceX classes
* refactor to allow expressions to have a type scope
* replace regex parsing with linear parsing
* generate source types before parsing
* fix support for resolving type variables in method declarations
* fix checking of array literal compatability
* report errors from unit parsing
* remove local modifier validation during parse add parameter modifier checking to validation
* allow trailing comma for array literals
* start separating validation from parsing
* add support for parsing enum values
* allow uppercase 0X in hex literals
* include enclosing types in identifier search
* add support for parsing parameterless lambdas
* ignore unresolved types in extends/implements
* implement specialisation of SourceType
* allow super as a member qualifier
* allow empty enums
* don't report missing constructors if superclass has none
* update typemap declarations to use CEIType instead of JavaType
* fix resolving of class type variables
* fix bad imports when resolving annotations
* allow null scope in findIdentifier
* add support for static member imports
* import types from same package
* remove this qualifier from isCastExpression
* add hex exponent support
* parse try-with-resources
* fix resolving imported enclosed types
* extract expression types into separate files
* extract statement types into separate files
* fix type warnings
* extract literals into separate files
* remove Value class, add NewExpression and separate out Any classes
* rename source types module
* remove some parse checks that should be in verify
* support token extraction in expressions
* implement resolveExpression
* add type cast checking
* check for valid type in class member expressions
* allow assigns for assignable type arguments
* improve reporting of unresolved identifiers
* add new array validation
* validate array literals
* validate array indexes
* improve validation of binary operators
* rename ResolvedType  to ResolvedValue
* improve checking of number literals
* support package name as a resolved value
* implement method body and ststement validation
* improve method call resolving
* add support for this() and super() constructor calls
* remove return type for source constructors
* add checks for unary operators
* ensure tokens are assigned for qualified expressions
* check castability using type assignments
* add implicit enum methods values() and valueOf()
* add basic type checking of lambda expressions
* fix return type check
* fix assert statement checks
* improve support for ternary operators in assignments and method invocations
* perform more detailed search of implemented methods
* initial test of context-dependant code completion
* support package, type and static field import completion
* support for member expressions
* use exact type signatures for locating types for completion items
* add support for field and method docs
* add support for docs in source types
* support member completion for array types improve comment formatting
* ensure Object is always last in the list of inherited types
* add owning method to statements create common keyword statement class
* improve code completion list add method parameters order list items by scope
* add source types to list hide this and super for non-methods
* fix bad member resolution at end of block fix missing method and type docs
* add support for editing multiple files
* allow multiple source files to be used in parsing
* load and parse files at startup
* add support for displaying method signatures
* add single trace function with timestamps
* implement shceduleReparse to reduce parsing load while typing
* remove parsed type list logging
* wait for reparsing before returning method signatures
* resolve new object contructors
* improve extraction of parameter docs
* update @types/vscode
* cache decoded android library in globalStoragePath
* load single android library cache from local folder
* android-29 library cache
* allow configurable app root setting
* set configurable trace logging and update section names
* description updates
* handle null token passed to ParseProblem
* refactoring
* Rename language client extension to Android
* ignore unnamed type declarations
* handle java file change notifications
* make sure we only try and parse java files
* add option to allow language server to be shutdown
* simplify handling of this and class member qualifiers
* relocate java-mti package into project
* get main node install to install langserver dependencies
* remove debugging pause
* rename body-parser3 to body-parser
* clean up import resolving code
* remove unused field from ResolvedImport
* remove validation modules that used old parser types
* remove old parser files
* remove redundant types and functions used by old parser
* move addproblem into TokenList
* remove unused ResolvedType class
* validate more statements
* add support for parsing and validating anonymous types
* hide some method modifiers which aren't useful to show
* code comments and minor improvements
* fix some type warnings
* improve support for completion of enum values
* add type name to parameter completion labels
* ignore synthetic members in completion list
* use a specialised map for handling case-insenstive file uris
* add basic build script
* reference java-mti package from GitHub
* revert @types/vscode
* update initial file loading to use URIs passed from the client changes to the appSourceRoot now require an extension restart
* add support for loading filtered androidx libraries for code completion
* update version of java-mti
* add mixpanel package
* add basic analytics
* fix dependency versions
* fix dependency versions
* set empty cache file markers
* add language server debug config
* add file to build script
* add unqualified type members when inside a method
* apply statics filter to enum values
* add basic debugger analytics
* include current time in startup event
* add terminate reason to debugger
* update changelog and readme

extension.js

@@ -1,18 +1,127 @@
 // The module 'vscode' contains the VS Code extensibility API
 // Import the module and reference it with the alias vscode in your code below
+const path = require('path');
 const vscode = require('vscode');
+const analytics = require('./langserver/analytics');
+const package_json = require('./package.json');
+const { LanguageClient, TransportKind, } = require('vscode-languageclient');
 const { AndroidContentProvider } = require('./src/contentprovider');
 const { openLogcatWindow } = require('./src/logcat');
 const { selectAndroidProcessID } = require('./src/process-attach');
 const { selectTargetDevice } = require('./src/utils/device');
 
-// this method is called when your extension is activated
-// your extension is activated the very first time the command is executed
+/**
+ * @param {vscode.ExtensionContext} context
+ */
+async function createLanguageClient(context) {
+  // The server is implemented in node
+  let serverModule = context.asAbsolutePath(path.join('langserver', 'server.js'));
+  // The debug options for the server
+  // --inspect=6009: runs the server in Node's Inspector mode so VS Code can attach to the server for debugging
+  let debugOptions = { execArgv: ['--nolazy', '--inspect=6009'] };
+
+  // If the extension is launched in debug mode then the debug server options are used
+  // Otherwise the run options are used
+  /** @type {import('vscode-languageclient').ServerOptions} */
+  let serverOptions = {
+    run: {
+        module: serverModule,
+        transport: TransportKind.ipc,
+    },
+    debug: {
+      module: serverModule,
+      transport: TransportKind.ipc,
+      options: debugOptions
+    }
+  };
+
+  const config = vscode.workspace.getConfiguration('android-dev-ext');
+  const appSourceRoot = config.get('appSourceRoot', '');
+  let globSearchRoot = appSourceRoot;
+  if (globSearchRoot) {
+      // for findFiles to work properly, the path cannot begin with slash or have any relative components
+      globSearchRoot = path.normalize(appSourceRoot.replace(/(^[\\/]+)|([\\/]+$)/,''));
+      if (globSearchRoot) globSearchRoot += '/';
+  }
+  const sourceFiles = (await vscode.workspace.findFiles(`${globSearchRoot}**/*.java`, null, 1000, null)).map(uri => uri.toString());
+
+  const mpids = analytics.getIDs(context);
+
+  // Options to control the language client
+  /** @type {import('vscode-languageclient').LanguageClientOptions} */
+  let clientOptions = {
+    // Register the server for Java source documents
+    documentSelector: [{
+        scheme: 'file', language: 'java'
+    }],
+    initializationOptions: {
+        // extensionPath points to the root of the extension (the folder where this file is)
+        extensionPath: context.extensionPath,
+        mpuid: mpids.uid,
+        mpsid: mpids.sid,
+        initialSettings: config,
+        sourceFiles,
+        vscodeVersion: vscode.version,
+        workspaceFolders: (vscode.workspace.workspaceFolders || []).map(z => z.uri.toString()),
+    },
+    synchronize: {
+      // Notify the server about file changes to '.java files contained in the workspace
+      fileEvents: vscode.workspace.createFileSystemWatcher('**/*.java')
+    },
+  };
+
+  // Create the language client - this won't do anything until start() is called
+  return new LanguageClient(
+    'androidJavaLanguageServer',
+    'Android',
+    serverOptions,
+    clientOptions
+  );
+}
+
+/** @type {LanguageClient} */
+let languageClient;
+let languageSupportEnabled = false;
+function refreshLanguageServerEnabledState() {
+    if (!languageClient) {
+        return;
+    }
+    let langSupport = vscode.workspace.getConfiguration('android-dev-ext').get('languageSupport', false);
+    if (langSupport === languageSupportEnabled) {
+        return;
+    }
+    if (langSupport) {
+        if (languageClient.needsStart()) {
+            languageClient.start();
+        }
+        languageSupportEnabled = true;
+    } else {
+        if (languageClient.needsStop()) {
+            languageClient.stop().then(() => {
+                languageSupportEnabled = false;
+                refreshLanguageServerEnabledState();
+            });
+        }
+    }
+}
+
+
+/**
+ * @param {vscode.ExtensionContext} context
+ */
 function activate(context) {
 
     /* Only the logcat stuff is configured here. The debugger is launched from src/debugMain.js  */
     AndroidContentProvider.register(context, vscode.workspace);
 
+    const mpids = analytics.getIDs(context);
+    analytics.init(undefined, mpids.uid, mpids.sid, package_json, { vscode_version: vscode.version });
+
+    createLanguageClient(context).then(client => {
+        languageClient = client;
+        refreshLanguageServerEnabledState();
+    });
+
     // The commandId parameter must match the command field in package.json
     const disposables = [
         // add the view logcat handler
@@ -50,6 +159,12 @@ function activate(context) {
             // the debugger requires a string value to be returned
             return JSON.stringify(o);
         }),
+
+        vscode.workspace.onDidChangeConfiguration(e => {
+            // perform the refresh on the next tick to prevent spurious errors when
+            // trying to shut down the language server in the middle of a change-configuration request
+            process.nextTick(() => refreshLanguageServerEnabledState());
+        }),
     ];
 
     context.subscriptions.splice(context.subscriptions.length, 0, ...disposables);