@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);
}
private void blockArgNode(BlockArgNode node) {
sb.append(" ").append(node.getName());
}
@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;
}