/*
***** BEGIN LICENSE BLOCK *****
* Version: CPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Common Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.eclipse.org/legal/cpl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2001-2002 Jan Arne Petersen <jpetersen@uni-bonn.de>
* Copyright (C) 2001-2002 Benoit Cerrina <b.cerrina@wanadoo.fr>
* Copyright (C) 2002 Anders Bengtsson <ndrsbngtssn@yahoo.se>
* Copyright (C) 2004-2005 Thomas E Enebo <enebo@acm.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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package org.jruby.ast;
import java.util.List;
import org.jruby.Ruby;
import org.jruby.RubyModule;
import org.jruby.ast.types.IArityNode;
import org.jruby.ast.visitor.NodeVisitor;
import org.jruby.evaluator.ASTInterpreter;
import org.jruby.evaluator.Instruction;
import org.jruby.javasupport.util.RuntimeHelpers;
import org.jruby.lexer.yacc.ISourcePosition;
import org.jruby.runtime.Arity;
import org.jruby.runtime.Block;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
/**
* a call to 'super' with no arguments in a method.
*/
public class ZSuperNode extends Node implements IArityNode, BlockAcceptingNode {
private Node iterNode;
public ZSuperNode(ISourcePosition position) {
super(position, NodeType.ZSUPERNODE);
}
/**
* Accept for the visitor pattern.
* @param iVisitor the visitor
**/
public Instruction accept(NodeVisitor iVisitor) {
return iVisitor.visitZSuperNode(this);
}
/**
* 'super' can take any number of arguments.
*/
public Arity getArity() {
return Arity.optional();
}
public List<Node> childNodes() {
return iterNode != null ? createList(iterNode) : EMPTY_LIST;
}
public Node getIterNode() {
return iterNode;
}
public Node setIterNode(Node iterNode) {
this.iterNode = iterNode;
return this;
}
@Override
public IRubyObject interpret(Ruby runtime, ThreadContext context, IRubyObject self, Block aBlock) {
Block block = ASTInterpreter.getBlock(runtime, context, self, aBlock, iterNode);
return RuntimeHelpers.callZSuper(runtime, context, block, self);
}
@Override
public String definition(Ruby runtime, ThreadContext context, IRubyObject self, Block aBlock) {
String name = context.getFrameName();
RubyModule klazz = context.getFrameKlazz();
if (name != null && klazz != null && klazz.getSuperClass().isMethodBound(name, false)) {
return "super";
}
return null;
}
}