Interpreter.java 文件源码

public void interpret() {

    ProgramContext parseTree = matrixParser.program();

    ParseTreeWalker.DEFAULT.walk(semanticListener, parseTree);

    List<SemanticError> errorList = semanticListener.getSemanticErrors();

    if (matrixParser.getNumberOfSyntaxErrors() > 0) {
      System.err.println("Aborting...");
    } else if (!errorList.isEmpty()) {
      System.err.println("------------------- ERRORS ---------------------");
      errorList.forEach(System.err::println);
    } else {
      CodeExecutor codeExecutor = new CodeExecutor(semanticListener.getSymbolTable(), parseTree);

      try {
        codeExecutor.execute();
      } catch (RuntimeError e) {
        System.err.println("[" + e.getClass().getSimpleName() + "]: " + e.getMessage());
        System.err.println("Aborting...");
      }
    }

  }