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comparison graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/control/RescueClassesNode.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.control;
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.nodes.*;
16 import com.oracle.truffle.ruby.runtime.*;
17 import com.oracle.truffle.ruby.runtime.core.*;
18 import com.oracle.truffle.ruby.runtime.objects.*;
19
20 /**
21 * Rescues any of a set of classes.
22 */
23 @NodeInfo(shortName = "rescue-classes")
24 public class RescueClassesNode extends RescueNode {
25
26 @Children final RubyNode[] handlingClassNodes;
27
28 public RescueClassesNode(RubyContext context, SourceSection sourceSection, RubyNode[] handlingClassNodes, RubyNode body) {
29 super(context, sourceSection, body);
30 this.handlingClassNodes = adoptChildren(handlingClassNodes);
31 }
32
33 @ExplodeLoop
34 @Override
35 public boolean canHandle(VirtualFrame frame, RubyBasicObject exception) {
36 final RubyClass exceptionRubyClass = exception.getRubyClass();
37
38 for (RubyNode handlingClassNode : handlingClassNodes) {
39 // TODO(CS): what if we don't get a class?
40
41 final RubyClass handlingClass = (RubyClass) handlingClassNode.execute(frame);
42
43 if (exceptionRubyClass.assignableTo(handlingClass)) {
44 return true;
45 }
46 }
47
48 return false;
49 }
50 }