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/***** BEGIN LICENSE BLOCK *****
 * Version: EPL 1.0/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Eclipse 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/epl-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) 2008 Thomas E Enebo 
 *
 * 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"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
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package org.jruby.ast;

import java.util.List;
import org.jruby.Ruby;
import org.jruby.RubyProc;
import org.jruby.ast.visitor.NodeVisitor;
import org.jruby.lexer.yacc.ISourcePosition;
import org.jruby.parser.StaticScope;
import org.jruby.runtime.Block;
import org.jruby.runtime.Interpreted19Block;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;

/**
 * Stubby lambda node (1.9 only)
 */
public class LambdaNode extends IterNode {
    public LambdaNode(ISourcePosition position, ArgsNode args, Node body, StaticScope scope) {
        super(position, args, body, scope);
    }

    @Override
    public NodeType getNodeType() {
        return NodeType.LAMBDANODE;
    }

    public ArgsNode getArgs() {
        return (ArgsNode)getVarNode();
    }

    public Node getBody() {
        return getBodyNode();
    }

    @Override
    public Object accept(NodeVisitor visitor) {
        return visitor.visitLambdaNode(this);
    }

    @Override
    public List childNodes() {
        return Node.createList(getArgs(), getBody());
    }

    @Override
    public IRubyObject interpret(Ruby runtime, ThreadContext context, IRubyObject self, Block aBlock) {
        // JRUBY-5686: do this before executing so first time sets cref module
        getScope().determineModule();
        
        return RubyProc.newProc(runtime, Interpreted19Block.newInterpretedClosure(context, getBlockBody(), self), Block.Type.LAMBDA, getPosition());
    }
}