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comparison graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/DefinedNode.java @ 13514:0fbee3eb71f0

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Ruby: import project.
author Chris Seaton <chris.seaton@oracle.com>
date Mon, 06 Jan 2014 17:12:09 +0000
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13513:64a23ce736a0 13514:0fbee3eb71f0
1 /*
2 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
3 * code is released under a tri EPL/GPL/LGPL license. You can use it,
4 * redistribute it and/or modify it under the terms of the:
5 *
6 * Eclipse Public License version 1.0
7 * GNU General Public License version 2
8 * GNU Lesser General Public License version 2.1
9 */
10 package com.oracle.truffle.ruby.nodes;
11
12 import com.oracle.truffle.api.*;
13 import com.oracle.truffle.api.frame.*;
14 import com.oracle.truffle.api.nodes.*;
15 import com.oracle.truffle.ruby.runtime.*;
16
17 /**
18 * Switches execution to the parallel {@link RubyNode#isDefined} semantic path. Represents the
19 * {@code defined?} keyword in Ruby.
20 */
21 @NodeInfo(shortName = "defined")
22 public class DefinedNode extends RubyNode {
23
24 @Child protected RubyNode child;
25
26 public DefinedNode(RubyContext context, SourceSection sourceSection, RubyNode child) {
27 super(context, sourceSection);
28 this.child = adoptChild(child);
29 }
30
31 @Override
32 public Object execute(VirtualFrame frame) {
33 return child.isDefined(frame);
34 }
35
36 }