ProtobufEditorParser.java 文件源码

@Override
public void parse(
        Snapshot snapshot,
        Task task,
        SourceModificationEvent event) throws ParseException {

    Assert.notNull(snapshot);

    this.snapshot = snapshot;

    CharStream input =
            new ANTLRInputStream(snapshot.getText().toString());

    Lexer lexer = new ProtobufLexer(input);
    CommonTokenStream tokens = new CommonTokenStream(lexer);
    ProtobufParser parser = new ProtobufParser(tokens);

    parser.removeErrorListeners();
    ParsingErrorListener listener = new ParsingErrorListener();
    parser.addErrorListener(listener);

    ParseTree tree = parser.proto();
    // TODO def and ref phases

    this.errors.clear();
    this.errors.addAll(listener.errors());
}