macEditorParser.java 文件源码

@Override
    public void parse(Snapshot snapshot, Task task, SourceModificationEvent event) {
        this.snapshot = snapshot;
        Document document = snapshot.getSource().getDocument(true);
        syntaxErrors = (List<SyntaxError>) document.getProperty("syntaxErrors");
        if (syntaxErrors == null) {
            syntaxErrors = new ArrayList<>();
            document.putProperty("syntaxErrors", syntaxErrors);
        }
        embeddedOffset = snapshot.getOriginalOffset(0);
//        Logger.Log("macparse: " + syntaxErrors.size() + " - " + embeddedOffset);
        if (embeddedOffset <= 0) {
            syntaxErrors.clear();
        }
        ANTLRInputStream input = new ANTLRInputStream(snapshot.getText().toString());
        Lexer lexer = new macLexer(input);
        CommonTokenStream tokens = new CommonTokenStream(lexer);
        macParser = new macParser(tokens);
        macParser.removeErrorListeners();
        macParser.addErrorListener(new ErrorListener(syntaxErrors, embeddedOffset));
        try {
            ProgContext prog = macParser.prog();
        } catch (RecognitionException ex) {
            ex.printStackTrace();
        }
    }