LanguageImpl.java 文件源码

@Override
protected void parse(File sourceFile) throws ParseException {
    try {
        GrammarConfiguration configuration = LanguageBase.createGrammarConfiguration(
                this,
                sourceFile,
                SwiftLexer.class,
                SwiftParser.class,
                new DefaultErrorListener(sourceFile));
        ParseTree tree = ((SwiftParser) configuration.parser).top_level();
        ParseTreeWalker walker = new ParseTreeWalker();
        walker.walk(new SwiftParseTreeListener(this), tree);
        trees.put(sourceFile, tree);
    } catch (Exception e) {
        throw new ParseException(e);
    }
}