如何从VariableDeclarationStatement获取方法名称

Question

我有一个VariableDeclarationStatement类型的变量。我想从这个变量中获取方法的名称。我该怎么做？帮助

Answer 1

您可以使用this thread中的代码并使用VariableDeclarationFragment：

    public boolean visit(VariableDeclarationStatement node)
    {
        System.out.println("Visiting variable declaration statement.");
        for(int i = 0; i < node.fragments().size(); ++i)
        {
            VariableDeclarationFragment frag = (VariableDeclarationFragment)node.fragments().get(i);
            System.out.println("Fragment: " + node.getType() + " " + frag.getName());
        }

        System.out.println("");        
        return true;
    }

为了获得定义此（变量）的方法，我将使用CompilationUnit的访问者，在记忆我正在解析的VariableDeclarationFragment时查找IMethod：

        IJavaElement element = delta.getElement();

        if(element.getElementType() != IJavaElement.COMPILATION_UNIT)
            return;

        ICompilationUnit compilationUnit = (ICompilationUnit)element;

        try
        {

            IType type = compilationUnit.findPrimaryType();
            IMethod[] methods = type.getMethods();
            for(IMethod method : methods)
            {                
                ASTParser parser = ASTParser.newParser(AST.JLS3);                
                parser.setSource(compilationUnit);
                parser.setSourceRange(method.getSourceRange().getOffset(), method.getSourceRange().getLength());
                //parser.setKind(ASTParser.K_CLASS_BODY_DECLARATIONS);
                //parser.setSource(method.getSource().toCharArray());
                //parser.setProject(method.getJavaProject());                
                parser.setResolveBindings(true);
                CompilationUnit cu = (CompilationUnit)parser.createAST(null);
                cu.accept(new ASTMethodVisitor());

                // If the visitor visit the right VariableDeclarationFragment,
                // then the right IMethod is the current 'method' variable

            }                        
        }
        catch(JavaModelException e)
        {         
            e.printStackTrace();
        }