Question

我正在尝试使用eclipse插件，JDT和AST（抽象语法树）修改源代码。我可以读取所有Java文件并对所有这些文件进行操作，但是当我使用

将这些更改（编辑）保存到文件中时

    TextEdit edits = rewriter.rewriteAST();
    // apply the text edits to the compilation unit
    edits.apply(document);
    iCompilationUnit.getBuffer().setContents(document.get());

它只对在未保存模式下在eclipse中打开的文件进行更改。其余文件不受影响。

在下面找到我的代码段：

CompilationUnit cu = parse(iCompilationUnit);
    MethodVisitor visitor = new MethodVisitor();
    cu.accept(visitor);
    String source = iCompilationUnit.getSource();
    Document document= new Document(source);
    ASTRewrite rewriter = ASTRewrite.create(cu.getAST());
    cu.recordModifications();
    for (MethodDeclaration methodDeclaration : visitor.getMethods()) {
        System.out.print("Method name: " + methodDeclaration.getName()
                + " Return type: " + methodDeclaration.getReturnType2());
        MethodDeclaration methodDecl = methodDeclaration;
        Block block = methodDecl.getBody();
        ListRewrite listRewrite = rewriter.getListRewrite(block, Block.STATEMENTS_PROPERTY);
        Statement placeHolder = (Statement) rewriter.createStringPlaceholder("System.out.println(\"Test Print\");", ASTNode.EMPTY_STATEMENT);
        listRewrite.insertFirst(placeHolder, null);
    }
    TextEdit edits = rewriter.rewriteAST();
    // apply the text edits to the compilation unit
    edits.apply(document);
    iCompilationUnit.getBuffer().setContents(document.get());

Answer 1

尝试：

将TextEdit直接应用于ICompilationUnit，而不是使用Document。
使用ICompilationUnit.commitWorkingCopy保存更改

我使用类似的代码：

iCompilationUnit.becomeWorkingCopy(new NullProgressMonitor());
CompilationUnit cu = parse(iCompilationUnit);
ASTRewrite rewriter = ASTRewrite.create(cu.getAST());

... process AST ...

iCompilationUnit.applyTextEdit(rewrite.rewriteAST(), new NullProgressMonitor());
iCompilationUnit.commitWorkingCopy(false, new NullProgressMonitor());

Eclipse AST不会更改未在eclipse中打开的文件

1 个答案: