示例#1
0
  @Override
  public RubyNode visitBlockArgNode(org.jruby.ast.BlockArgNode node) {
    final SourceSection sourceSection = translate(node.getPosition());

    final RubyNode readNode = new ReadBlockNode(context, sourceSection, NilPlaceholder.INSTANCE);
    final FrameSlot slot =
        methodBodyTranslator.getEnvironment().getFrameDescriptor().findFrameSlot(node.getName());
    return WriteLocalVariableNodeFactory.create(context, sourceSection, slot, readNode);
  }
示例#2
0
文件: SexpMaker.java 项目: xb/jruby
 private void blockArgNode(BlockArgNode node) {
   sb.append(" ").append(node.getName());
 }
示例#3
0
  @JRubyMethod(name = "parameters", compat = CompatVersion.RUBY1_9)
  public IRubyObject parameters(ThreadContext context) {
    Ruby runtime = context.getRuntime();
    RubyArray parms = RubyArray.newEmptyArray(runtime);
    ArgsNode args;

    if (!(this.getBlock().getBody() instanceof Interpreted19Block)) {
      return parms;
    }

    // argument names are easily accessible from interpreter
    RubyArray elem = RubyArray.newEmptyArray(runtime);
    args = ((Interpreted19Block) this.getBlock().getBody()).getArgs();

    // required parameters
    List<Node> children = new ArrayList();
    if (args.getPreCount() > 0) children.addAll(args.getPre().childNodes());
    if (args.getPostCount() > 0) children.addAll(args.getPost().childNodes());

    Iterator iter = children.iterator();
    while (iter.hasNext()) {
      Node node = (Node) iter.next();
      elem = RubyArray.newEmptyArray(runtime);
      elem.add(RubySymbol.newSymbol(runtime, this.isLambda() ? "req" : "opt"));
      if (node instanceof ArgumentNode) {
        elem.add(RubySymbol.newSymbol(runtime, ((ArgumentNode) node).getName()));
      }
      parms.add(elem);
    }

    // optional parameters
    if (args.getOptArgs() != null) {
      children = args.getOptArgs().childNodes();
      if (!children.isEmpty()) {
        iter = children.iterator();
        while (iter.hasNext()) {
          Node node = (Node) iter.next();
          elem = RubyArray.newEmptyArray(runtime);
          elem.add(RubySymbol.newSymbol(runtime, "opt"));
          if (node instanceof OptArgNode) {
            elem.add(RubySymbol.newSymbol(runtime, ((OptArgNode) node).getName()));
          }
          parms.add(elem);
        }
      }
    }

    ArgumentNode rest = args.getRestArgNode();
    if (rest != null) {
      elem = RubyArray.newEmptyArray(runtime);
      elem.add(RubySymbol.newSymbol(runtime, "rest"));
      elem.add(RubySymbol.newSymbol(runtime, rest.getName()));
      parms.add(elem);
    }

    BlockArgNode blockArg = args.getBlock();
    if (blockArg != null) {
      elem = RubyArray.newEmptyArray(runtime);
      elem.add(RubySymbol.newSymbol(runtime, "block"));
      elem.add(RubySymbol.newSymbol(runtime, blockArg.getName()));
      parms.add(elem);
    }

    return parms;
  }