|
13514
|
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.ruby.nodes.*;
|
|
|
15 import com.oracle.truffle.ruby.runtime.*;
|
|
|
16 import com.oracle.truffle.ruby.runtime.objects.*;
|
|
|
17
|
|
|
18 /**
|
|
|
19 * Base node for all nodes which may be able to rescue an exception. They have a test method
|
|
|
20 * {@link #canHandle} and a body to execute if that test passes.
|
|
|
21 */
|
|
|
22 public abstract class RescueNode extends RubyNode {
|
|
|
23
|
|
|
24 @Child protected RubyNode body;
|
|
|
25
|
|
|
26 public RescueNode(RubyContext context, SourceSection sourceSection, RubyNode body) {
|
|
|
27 super(context, sourceSection);
|
|
|
28 this.body = adoptChild(body);
|
|
|
29 }
|
|
|
30
|
|
|
31 public abstract boolean canHandle(VirtualFrame frame, RubyBasicObject exception);
|
|
|
32
|
|
|
33 @Override
|
|
|
34 public Object execute(VirtualFrame frame) {
|
|
|
35 return body.execute(frame);
|
|
|
36 }
|
|
|
37
|
|
|
38 @Override
|
|
|
39 public void executeVoid(VirtualFrame frame) {
|
|
|
40 body.executeVoid(frame);
|
|
|
41 }
|
|
|
42
|
|
|
43 }
|
