Mercurial > hg > graal-jvmci-8
comparison graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/parser/CreateCastParser.java @ 16759:23415229349b
Truffle-DSL: new package structure.
author | Christian Humer <christian.humer@gmail.com> |
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date | Mon, 11 Aug 2014 15:57:14 +0200 |
parents | graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/node/CreateCastParser.java@bd28da642eea |
children | 0370880ac9ce |
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16758:c5f8eeb3cbc8 | 16759:23415229349b |
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1 /* | |
2 * Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 */ | |
23 package com.oracle.truffle.dsl.processor.parser; | |
24 | |
25 import java.lang.annotation.*; | |
26 import java.util.*; | |
27 | |
28 import javax.lang.model.element.*; | |
29 import javax.lang.model.type.*; | |
30 | |
31 import com.oracle.truffle.api.dsl.*; | |
32 import com.oracle.truffle.dsl.processor.*; | |
33 import com.oracle.truffle.dsl.processor.java.*; | |
34 import com.oracle.truffle.dsl.processor.model.*; | |
35 | |
36 public class CreateCastParser extends NodeMethodParser<CreateCastData> { | |
37 | |
38 public CreateCastParser(ProcessorContext context, NodeData operation) { | |
39 super(context, operation); | |
40 } | |
41 | |
42 @Override | |
43 public Class<? extends Annotation> getAnnotationType() { | |
44 return CreateCast.class; | |
45 } | |
46 | |
47 @Override | |
48 public MethodSpec createSpecification(ExecutableElement method, AnnotationMirror mirror) { | |
49 List<String> childNames = ElementUtils.getAnnotationValueList(String.class, mirror, "value"); | |
50 NodeChildData foundChild = null; | |
51 for (String childName : childNames) { | |
52 foundChild = getNode().findChild(childName); | |
53 if (foundChild != null) { | |
54 break; | |
55 } | |
56 } | |
57 TypeMirror baseType = getContext().getTruffleTypes().getNode(); | |
58 if (foundChild != null) { | |
59 baseType = foundChild.getOriginalType(); | |
60 } | |
61 | |
62 MethodSpec spec = new MethodSpec(new InheritsParameterSpec("child", baseType)); | |
63 addDefaultFieldMethodSpec(spec); | |
64 ParameterSpec childSpec = new ParameterSpec("castedChild", baseType); | |
65 childSpec.setSignature(true); | |
66 spec.addRequired(childSpec); | |
67 return spec; | |
68 } | |
69 | |
70 @Override | |
71 public CreateCastData create(TemplateMethod method, boolean invalid) { | |
72 AnnotationMirror mirror = method.getMarkerAnnotation(); | |
73 List<String> childNames = ElementUtils.getAnnotationValueList(String.class, mirror, "value"); | |
74 CreateCastData cast = new CreateCastData(method, childNames); | |
75 AnnotationValue value = ElementUtils.getAnnotationValue(mirror, "value"); | |
76 TypeMirror type = null; | |
77 if (childNames == null || childNames.isEmpty()) { | |
78 cast.addError(value, "No value specified but required."); | |
79 return cast; | |
80 } | |
81 | |
82 for (String childName : childNames) { | |
83 NodeChildData child = getNode().findChild(childName); | |
84 if (child == null) { | |
85 // error | |
86 cast.addError(value, "Specified child '%s' not found.", childName); | |
87 continue; | |
88 } | |
89 if (type == null) { | |
90 type = child.getNodeType(); | |
91 } else if (!ElementUtils.typeEquals(type, child.getNodeType())) { | |
92 cast.addError(value, "All child nodes for a cast must have the same node type."); | |
93 continue; | |
94 } | |
95 } | |
96 return cast; | |
97 } | |
98 | |
99 private static class InheritsParameterSpec extends ParameterSpec { | |
100 | |
101 public InheritsParameterSpec(String name, TypeMirror... allowedTypes) { | |
102 super(name, Arrays.asList(allowedTypes)); | |
103 } | |
104 | |
105 @Override | |
106 public boolean matches(TypeMirror actualType) { | |
107 boolean found = false; | |
108 for (TypeMirror specType : getAllowedTypes()) { | |
109 if (ElementUtils.isAssignable(actualType, specType)) { | |
110 found = true; | |
111 break; | |
112 } | |
113 } | |
114 return found; | |
115 } | |
116 } | |
117 } |