问题描述
我正在尝试使基本的ECMAScript解析器正常工作，并为 ECMAScript 3 ，似乎可以编译并生成适当的Lexer/Parser/Walker Java文件.
(在Eclipse 3.5的 ANTLR IDE插件中运行)
I am attempting to get a basic ECMAScript parser working, and found a complete ANTLR grammar for ECMAScript 3, which appears to compile ok and produces the appropriate Lexer/Parser/Walker Java files.
(Running inside ANTLR IDE plugin for Eclipse 3.5)
但是，当实际尝试将其与一些简单的测试代码一起使用时(遵循有关ANTLR Wiki的指南)，它只是在尝试创建解析器时挂起:
However, when actually trying to use it with some simple test code (following guide on ANTLR wiki), it just hangs when trying to create the parser:
CharStream MyChars = new ANTLRFileStream(FileName); // FileName is valid
ES3Lexer MyLexer = new ES3Lexer(MyChars);
CommonTokenStream MyTokens = new CommonTokenStream(MyLexer);
MyTokens.setTokenSource(MyLexer);
ES3Parser MyParser = new ES3Parser( MyTokens ); // hangs here
ES3Parser.program_return MyReturn = MyParser.program();
我已经在ES3Parser构造函数内部找到了问题，在该构造函数中调用了函数proxy.handshake()-在此行之前，我可以成功执行System.out.println("text")，但之后却一无所获.
I've tracked down the problem to inside the ES3Parser constructor, where it's calling the function proxy.handshake() - before this line I can successfully do System.out.println("text") but after it I get nothing.
所以，我如何找出它为什么挂起并停止它-甚至只是绕过本节(我可以/应该禁用调试吗?)-只要它能够正常工作并使我继续做有用的事情.
So, how do I go about finding out why it's hanging, and stopping it - or even just bypassing this section (can/should I disable debugging?) - so long as that lets it work and allows me to get on with doing useful stuff.
推荐答案
我通过禁用ANTLR IDE插件中的调试代码生成来解决了这个问题.
I solved this by disabling the generation of debug code within the ANTLR IDE plugin.
此设置位于Windows>偏好设置">"ANTLR">代码生成"下.
The setting for this is under Windows > Preferences > ANTLR > Code Generation.
展开常规"部分，然后取消选中调试选项:
Expand the General section and untick the debug option:
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