Mercurial > hg > truffle

annotate truffle/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/expression/SLLogicalAndNode.java @ 22157:dc83cc1f94f2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Using fully qualified imports
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 16 Sep 2015 11:33:22 +0200
parents 503529c65456
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
7503
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
1 /*
13821
b16ec83edc73 Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13761
diff changeset
2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
7503
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
4 *
21997
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
5 * The Universal Permissive License (UPL), Version 1.0
22065
503529c65456 Remove trailing whitespace from UPL license
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 21997
diff changeset
6 *
21997
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
7 * Subject to the condition set forth below, permission is hereby granted to any
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
8 * person obtaining a copy of this software, associated documentation and/or
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
9 * data (collectively the "Software"), free of charge and under any and all
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
10 * copyright rights in the Software, and any and all patent rights owned or
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
11 * freely licensable by each licensor hereunder covering either (i) the
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
12 * unmodified Software as contributed to or provided by such licensor, or (ii)
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
13 * the Larger Works (as defined below), to deal in both
22065
503529c65456 Remove trailing whitespace from UPL license
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 21997
diff changeset
14 *
21997
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
15 * (a) the Software, and
22065
503529c65456 Remove trailing whitespace from UPL license
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 21997
diff changeset
16 *
21997
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
17 * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
18 * one is included with the Software each a "Larger Work" to which the Software
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
19 * is contributed by such licensors),
22065
503529c65456 Remove trailing whitespace from UPL license
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 21997
diff changeset
20 *
21997
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
21 * without restriction, including without limitation the rights to copy, create
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
22 * derivative works of, display, perform, and distribute the Software and make,
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
23 * use, sell, offer for sale, import, export, have made, and have sold the
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
24 * Software and the Larger Work(s), and to sublicense the foregoing rights on
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
25 * either these or other terms.
22065
503529c65456 Remove trailing whitespace from UPL license
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 21997
diff changeset
26 *
21997
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
27 * This license is subject to the following condition:
22065
503529c65456 Remove trailing whitespace from UPL license
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 21997
diff changeset
28 *
21997
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
29 * The above copyright notice and either this complete permission notice or at a
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
30 * minimum a reference to the UPL must be included in all copies or substantial
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
31 * portions of the Software.
22065
503529c65456 Remove trailing whitespace from UPL license
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 21997
diff changeset
32 *
21997
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
33 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
34 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
35 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
36 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
37 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
38 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
c07e64ecb528 Update SL copyright headers to use UPL
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21951
diff changeset
39 * SOFTWARE.
7503
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
40 */
13761
7c418666c6c9 Refactoring and cleanup of Simple Language (more to come soon)
Christian Wimmer <christian.wimmer@oracle.com>
parents: 10597
diff changeset
41 package com.oracle.truffle.sl.nodes.expression;
7503
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
42
22157
dc83cc1f94f2 Using fully qualified imports
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22065
diff changeset
43 import com.oracle.truffle.api.dsl.ShortCircuit;
dc83cc1f94f2 Using fully qualified imports
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22065
diff changeset
44 import com.oracle.truffle.api.dsl.Specialization;
dc83cc1f94f2 Using fully qualified imports
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22065
diff changeset
45 import com.oracle.truffle.api.frame.VirtualFrame;
dc83cc1f94f2 Using fully qualified imports
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22065
diff changeset
46 import com.oracle.truffle.api.nodes.NodeInfo;
dc83cc1f94f2 Using fully qualified imports
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22065
diff changeset
47 import com.oracle.truffle.api.source.SourceSection;
dc83cc1f94f2 Using fully qualified imports
Jaroslav Tulach <jaroslav.tulach@oracle.com>
parents: 22065
diff changeset
48 import com.oracle.truffle.sl.nodes.SLBinaryNode;
7503
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
49
13836
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
50 /**
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
51 * This class declares specializations similar to the extensively documented {@link SLAddNode}. It
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
52 * uses one additional feature of the Truffle DSL: {@link ShortCircuit}.
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
53 * <p>
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
54 * Logical operations in SL use short circuit evaluation: if the evaluation of the left operand
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
55 * already decides the result of the operation, the right operand must not be executed. This is
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
56 * expressed in the Truffle DSL via a method annotated with {@link ShortCircuit}, which returns
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
57 * whether a child needs to be executed based on the result of already executed children.
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
58 */
13821
b16ec83edc73 Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13761
diff changeset
59 @NodeInfo(shortName = "&&")
7503
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
60 @SuppressWarnings("unused")
13761
7c418666c6c9 Refactoring and cleanup of Simple Language (more to come soon)
Christian Wimmer <christian.wimmer@oracle.com>
parents: 10597
diff changeset
61 public abstract class SLLogicalAndNode extends SLBinaryNode {
7503
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
62
16512
abe7128ca473 SL: upgrade source attribution
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 13836
diff changeset
63 public SLLogicalAndNode(SourceSection src) {
abe7128ca473 SL: upgrade source attribution
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 13836
diff changeset
64 super(src);
abe7128ca473 SL: upgrade source attribution
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 13836
diff changeset
65 }
abe7128ca473 SL: upgrade source attribution
Michael Van De Vanter <michael.van.de.vanter@oracle.com>
parents: 13836
diff changeset
66
20953
c0455554d45b SL: some minor simplifications.
Christian Humer <christian.humer@gmail.com>
parents: 16512
diff changeset
67 @Override
c0455554d45b SL: some minor simplifications.
Christian Humer <christian.humer@gmail.com>
parents: 16512
diff changeset
68 public abstract boolean executeBoolean(VirtualFrame frame);
c0455554d45b SL: some minor simplifications.
Christian Humer <christian.humer@gmail.com>
parents: 16512
diff changeset
69
13836
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
70 /**
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
71 * This method is called after the left child was evaluated, but before the right child is
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
72 * evaluated. The right child is only evaluated when the return value is {code true}.
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
73 */
7503
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
74 @ShortCircuit("rightNode")
13821
b16ec83edc73 Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13761
diff changeset
75 protected boolean needsRightNode(boolean left) {
7503
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
76 return left;
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
77 }
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
78
13836
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
79 /**
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
80 * Similar to {@link #needsRightNode(boolean)}, but for generic cases where the type of the left
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
81 * child is not known.
64c77f0577bb More documentation and improvements of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13821
diff changeset
82 */
7503
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
83 @ShortCircuit("rightNode")
13821
b16ec83edc73 Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13761
diff changeset
84 protected boolean needsRightNode(Object left) {
13761
7c418666c6c9 Refactoring and cleanup of Simple Language (more to come soon)
Christian Wimmer <christian.wimmer@oracle.com>
parents: 10597
diff changeset
85 return left instanceof Boolean && needsRightNode(((Boolean) left).booleanValue());
7503
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
86 }
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
87
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
88 @Specialization
13821
b16ec83edc73 Documentation and more refactoring of Simple Language
Christian Wimmer <christian.wimmer@oracle.com>
parents: 13761
diff changeset
89 protected boolean doBoolean(boolean left, boolean hasRight, boolean right) {
13761
7c418666c6c9 Refactoring and cleanup of Simple Language (more to come soon)
Christian Wimmer <christian.wimmer@oracle.com>
parents: 10597
diff changeset
90 return left && right;
7503
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
91 }
31da1716950f Updated truffle-sl for the changed operation code generation.
Christian Humer <christian.humer@gmail.com>
parents:
diff changeset
92 }