Java JavacTypes.instance方法代码示例

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
/**Return variables declared in the given scope.
 */
public Iterable<? extends Element> getLocalVars(Scope scope, ElementAcceptor acceptor) {
    ArrayList<Element> members = new ArrayList<Element>();
    Elements elements = JavacElements.instance(ctx);
    Types types = JavacTypes.instance(ctx);
    while(scope != null && scope.getEnclosingClass() != null) {
        for (Element local : scope.getLocalElements()) {
            if (acceptor == null || acceptor.accept(local, null)) {
                if (!isHidden(local, members, elements, types)) {
                    members.add(local);
                }
            }
        }
        scope = scope.getEnclosingScope();
    }
    return members;
}
 

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
/**
 * Constructor
 *
 * @param context      Context for this javadoc instance.
 */
protected ToolEnvironment(Context context) {
    context.put(ToolEnvKey, this);
    this.context = context;

    messager = Messager.instance0(context);
    syms = Symtab.instance(context);
    finder = JavadocClassFinder.instance(context);
    enter = JavadocEnter.instance(context);
    names = Names.instance(context);
    externalizableSym = syms.enterClass(syms.java_base, names.fromString("java.io.Externalizable"));
    chk = Check.instance(context);
    types = com.sun.tools.javac.code.Types.instance(context);
    fileManager = context.get(JavaFileManager.class);
    if (fileManager instanceof JavacFileManager) {
        ((JavacFileManager)fileManager).setSymbolFileEnabled(false);
    }
    docTrees = JavacTrees.instance(context);
    source = Source.instance(context);
    elements =  JavacElements.instance(context);
    typeutils = JavacTypes.instance(context);
    elementToTreePath = new HashMap<>();
}
 

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
/**
 * Constructor
 *
 * @param context      Context for this javadoc instance.
 */
protected DocEnv(Context context) {
    context.put(docEnvKey, this);
    this.context = context;

    messager = Messager.instance0(context);
    syms = Symtab.instance(context);
    finder = JavadocClassFinder.instance(context);
    enter = JavadocEnter.instance(context);
    names = Names.instance(context);
    externalizableSym = syms.enterClass(syms.java_base, names.fromString("java.io.Externalizable"));
    chk = Check.instance(context);
    types = com.sun.tools.javac.code.Types.instance(context);
    fileManager = context.get(JavaFileManager.class);
    if (fileManager instanceof JavacFileManager) {
        ((JavacFileManager)fileManager).setSymbolFileEnabled(false);
    }
    docTrees = JavacTrees.instance(context);
    source = Source.instance(context);
    elements =  JavacElements.instance(context);
    typeutils = JavacTypes.instance(context);
    elementToTreePath = new HashMap<>();
}
 

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
public TreeScannerStateful(CompilationTask task, JCCompilationUnit jcc) {
  	this.jcc = jcc ;
      trees = Trees.instance(task);
      treesC = (JavacTrees)trees;
              
      //Rabbit hole to Wonderland
      context = ((BasicJavacTask)task).getContext() ;
this.task = ((BasicJavacTask)task) ;
      
      //Initialize magical classes !
      make = TreeMaker.instance(context) ;
      names = Names.instance(context) ;
      syms = Symtab.instance(context);
      types = Types.instance(context) ;
      typesC = JavacTypes.instance(context) ;
      attr = Attr.instance(context) ;
      enter = Enter.instance(context) ;
      resolve = Resolve.instance(context) ;
      memberEnter = MemberEnter.instance(context) ;
javacElements = JavacElements.instance(context) ;
info = TreeInfo.instance(context) ;

      sourcePositions = trees.getSourcePositions();
      elements = ((JavacTask)task).getElements();
      elementsC = (JavacElements)elements;
}
 

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
protected TreeFactory(Context context) {
    context.put(contextKey, this);
    model = ASTService.instance(context);
    names = Names.instance(context);
    classReader = ClassReader.instance(context);
    make = com.sun.tools.javac.tree.TreeMaker.instance(context);
    docMake = com.sun.tools.javac.tree.DocTreeMaker.instance(context);
    elements = JavacElements.instance(context);
    types = JavacTypes.instance(context);
    chs = CommentHandlerService.instance(context);
    make.toplevel = null;
}
 

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
protected ElementsService(Context context) {
    context.put(KEY, this);
    jctypes = com.sun.tools.javac.code.Types.instance(context);
    names = Names.instance(context);
    types = JavacTypes.instance(context);
    allowDefaultMethods = SourceLevelUtils.allowDefaultMethods(Source.instance(context));
}
 

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
/**Find all methods in given type and its supertypes, which are overridable.
 * 
 * @param type to inspect
 * @return list of all overridable methods
 *
 * @since 0.136
 */
public List<? extends ExecutableElement> findOverridableMethods(TypeElement type) {
    List<ExecutableElement> overridable = new ArrayList<>();
    final Set<Modifier> notOverridable = EnumSet.copyOf(NOT_OVERRIDABLE);
    if (!type.getModifiers().contains(Modifier.ABSTRACT)) {
        notOverridable.add(Modifier.ABSTRACT);
    }
    DeclaredType dt = (DeclaredType)type.asType();
    Types types = JavacTypes.instance(ctx);
    Set<String> typeStrings = new HashSet<>();
    for (ExecutableElement ee : ElementFilter.methodsIn(info.getElements().getAllMembers(type))) {
        
        TypeMirror methodType = types.erasure(types.asMemberOf(dt, ee));
        String methodTypeString = ee.getSimpleName().toString() + methodType.toString();
        if (typeStrings.contains(methodTypeString)) {
            continue;
        }
        Set<Modifier> set = EnumSet.copyOf(notOverridable);                
        set.removeAll(ee.getModifiers());                
        if (set.size() == notOverridable.size()
                && !overridesPackagePrivateOutsidePackage(ee, type) //do not offer package private methods in case they're from different package
                && !isOverridden(ee, type)) {
            overridable.add(ee);
            if (ee.getModifiers().contains(Modifier.ABSTRACT)) {
                typeStrings.add(methodTypeString);
            }
        }
    }
    Collections.reverse(overridable);
    return overridable;
}
 

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
/**
 * Initialize and associate this Query instance with the
 * specified QueryEnvironment.
 */
public void attach(Context context, WorkingCopy copy) {
    make = copy.getTreeMaker();
    types = JavacTypes.instance(context);
    commentHandler = CommentHandlerService.instance(context);
    model = ASTService.instance(context);
    this.copy = copy;
}
 

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
public JavacProcessingEnvironment(Context context, Iterable<? extends Processor> processors) {
    this.context = context;
    log = Log.instance(context);
    source = Source.instance(context);
    diags = JCDiagnostic.Factory.instance(context);
    options = Options.instance(context);
    printProcessorInfo = options.isSet(XPRINTPROCESSORINFO);
    printRounds = options.isSet(XPRINTROUNDS);
    verbose = options.isSet(VERBOSE);
    lint = Lint.instance(context).isEnabled(PROCESSING);
    procOnly = options.isSet(PROC, "only") || options.isSet(XPRINT);
    fatalErrors = options.isSet("fatalEnterError");
    showResolveErrors = options.isSet("showResolveErrors");
    werror = options.isSet(WERROR);
    platformAnnotations = initPlatformAnnotations();
    foundTypeProcessors = false;

    // Initialize services before any processors are initialized
    // in case processors use them.
    filer = new JavacFiler(context);
    messager = new JavacMessager(context, this);
    elementUtils = JavacElements.instance(context);
    typeUtils = JavacTypes.instance(context);
    processorOptions = initProcessorOptions(context);
    unmatchedProcessorOptions = initUnmatchedProcessorOptions();
    messages = JavacMessages.instance(context);
    initProcessorIterator(context, processors);
}
 

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
private void lazyInit() {
    if (mangler == null) {
        elements = JavacElements.instance(context);
        types = JavacTypes.instance(context);
        mangler = new Mangle(elements, types);
    }
}
 

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
protected JavacProcessingEnvironment(Context context) {
    this.context = context;
    context.put(JavacProcessingEnvironment.class, this);
    log = Log.instance(context);
    source = Source.instance(context);
    diags = JCDiagnostic.Factory.instance(context);
    options = Options.instance(context);
    printProcessorInfo = options.isSet(XPRINTPROCESSORINFO);
    printRounds = options.isSet(XPRINTROUNDS);
    verbose = options.isSet(VERBOSE);
    lint = Lint.instance(context).isEnabled(PROCESSING);
    if (options.isSet(PROC, "only") || options.isSet(XPRINT)) {
        JavaCompiler compiler = JavaCompiler.instance(context);
        compiler.shouldStopPolicyIfNoError = CompileState.PROCESS;
    }
    fatalErrors = options.isSet("fatalEnterError");
    showResolveErrors = options.isSet("showResolveErrors");
    werror = options.isSet(WERROR);
    platformAnnotations = initPlatformAnnotations();

    // Initialize services before any processors are initialized
    // in case processors use them.
    filer = new JavacFiler(context);
    messager = new JavacMessager(context, this);
    elementUtils = JavacElements.instance(context);
    typeUtils = JavacTypes.instance(context);
    processorOptions = initProcessorOptions(context);
    unmatchedProcessorOptions = initUnmatchedProcessorOptions();
    messages = JavacMessages.instance(context);
    taskListener = MultiTaskListener.instance(context);
    initProcessorClassLoader();
}
 

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
public AbstractCodingRulesAnalyzer(JavacTask task) {
    BasicJavacTask impl = (BasicJavacTask)task;
    Context context = impl.getContext();
    log = Log.instance(context);
    options = Options.instance(context);
    rawDiagnostics = options.isSet("rawDiagnostics");
    diags = JCDiagnostic.Factory.instance(context);
    messages = new Messages();
    syms = Symtab.instance(context);
    elements = JavacElements.instance(context);
    types = JavacTypes.instance(context);
}
 

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
void run() throws Exception {
        Context c = new Context();
        JavacFileManager.preRegister(c);
        Symtab syms = Symtab.instance(c);
        JavacTypes types = JavacTypes.instance(c);
        JavaCompiler.instance(c);  // will init ClassReader.sourceCompleter

//        print("noSymbol", syms.noSymbol);
//        print("errSymbol", syms.errSymbol);
//        print("unknownSymbol", syms.unknownSymbol);
//        print("botType", syms.botType);
//        print("errType", syms.errType);
//        print("unknownType", syms.unknownType);

        for (Field f: Symtab.class.getDeclaredFields()) {
//            System.err.println(f.getType() + " " + f.getName());

            // Temporarily ignore methodHandle and transientMethodHandle
            // during API evolution
            if (f.getName().toLowerCase().contains("methodhandle"))
                continue;

            //both noModule and unnamedModule claim the unnamed package, ignore noModule for now:
            if (f.getName().equals("noModule"))
                continue;

            f.setAccessible(true);
            Class<?> ft = f.getType();
            if (TypeMirror.class.isAssignableFrom(ft))
                print(f.getName(), (TypeMirror) f.get(syms), types);
            else if(Element.class.isAssignableFrom(ft))
                print(f.getName(), (Element) f.get(syms));
        }

        if (errors > 0)
            throw new Exception(errors + " errors occurred");
    }
 

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
private static void verifyLambdaScopeCorrect(final String packageClause) throws Exception {
    JavacTool tool = JavacTool.create();
    JavaFileObject source = new SimpleJavaFileObject(URI.create("mem://Test.java"), Kind.SOURCE) {
        @Override public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException {
            return packageClause + SOURCE_CODE;
        }
        @Override public boolean isNameCompatible(String simpleName, Kind kind) {
            return !"module-info".equals(simpleName);
        }
    };
    Iterable<? extends JavaFileObject> fos = Collections.singletonList(source);
    JavacTask task = tool.getTask(null, null, null, new ArrayList<String>(), null, fos);
    final Types types = JavacTypes.instance(((JavacTaskImpl) task).getContext());
    final Trees trees = Trees.instance(task);
    CompilationUnitTree cu = task.parse().iterator().next();

    task.analyze();

    new TreePathScanner<Void, Void>() {
        @Override public Void visitMemberSelect(MemberSelectTree node, Void p) {
            if (node.getIdentifier().contentEquals("correct")) {
                TypeMirror xType = trees.getTypeMirror(new TreePath(getCurrentPath(), node.getExpression()));
                Scope scope = trees.getScope(getCurrentPath());
                for (Element l : scope.getLocalElements()) {
                    if (!l.getSimpleName().contentEquals("x")) continue;
                    if (!types.isSameType(xType, l.asType())) {
                        throw new IllegalStateException("Incorrect variable type in scope: " + l.asType() + "; should be: " + xType);
                    }
                }
            }
            return super.visitMemberSelect(node, p);
        }
    }.scan(cu, null);
}
 

import com.sun.tools.javac.model.JavacTypes; //导入方法依赖的package包/类
/**
 * Creates a new JavacAST of the provided Compilation Unit.
 * 
 * @param messager A Messager for warning and error reporting.
 * @param context A Context object for interfacing with the compiler.
 * @param top The compilation unit, which serves as the top level node in the tree to be built.
 */
public JavacAST(Messager messager, Context context, JCCompilationUnit top) {
	super(sourceName(top), PackageName.getPackageName(top), new JavacImportList(top));
	setTop(buildCompilationUnit(top));
	this.context = context;
	this.messager = messager;
	this.log = Log.instance(context);
	this.elements = JavacElements.instance(context);
	this.treeMaker = new JavacTreeMaker(TreeMaker.instance(context));
	this.symtab = Symtab.instance(context);
	this.javacTypes = JavacTypes.instance(context);
	clearChanged();
}