TreeViewGenerator.java 文件源码

public static Forest generate(String code) throws SyntaxError {
    Java8Lexer lexer = new Java8Lexer(CharStreams.fromString(code));
    CommonTokenStream tokens = new CommonTokenStream(lexer);
    Java8Parser parser = new Java8Parser(tokens);
    Java8Parser.CompilationUnitContext ast = parser.compilationUnit();
    if(parser.getNumberOfSyntaxErrors() > 0) {
        throw new SyntaxError();
    }
    Forest forest = new Forest();
    TreeViewListener treeViewListener = new TreeViewListener(forest);
    ParseTreeWalker.DEFAULT.walk(treeViewListener, ast);
    return forest;
}