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comparison graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/parser/TypeCastParser.java @ 16759:23415229349b

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Truffle-DSL: new package structure.
author Christian Humer <christian.humer@gmail.com>
date Mon, 11 Aug 2014 15:57:14 +0200
parents graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/typesystem/TypeCastParser.java@43eab069ca9b
children 0370880ac9ce
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16758:c5f8eeb3cbc8 16759:23415229349b
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
27 import javax.lang.model.element.*;
28
29 import com.oracle.truffle.api.dsl.*;
30 import com.oracle.truffle.dsl.processor.*;
31 import com.oracle.truffle.dsl.processor.java.*;
32 import com.oracle.truffle.dsl.processor.model.*;
33
34 class TypeCastParser extends TypeSystemMethodParser<TypeCastData> {
35
36 public TypeCastParser(ProcessorContext context, TypeSystemData typeSystem) {
37 super(context, typeSystem);
38 }
39
40 @Override
41 public MethodSpec createSpecification(ExecutableElement method, AnnotationMirror mirror) {
42 TypeData targetType = findTypeByMethodName(method.getSimpleName().toString(), "as");
43 if (targetType == null) {
44 return null;
45 }
46 MethodSpec spec = new MethodSpec(new ParameterSpec("returnType", targetType.getPrimitiveType()));
47 spec.addRequired(new ParameterSpec("value", getTypeSystem().getPrimitiveTypeMirrors()));
48 return spec;
49 }
50
51 @Override
52 public TypeCastData create(TemplateMethod method, boolean invalid) {
53 if (invalid) {
54 return new TypeCastData(method, null, null);
55 }
56
57 TypeData targetType = findTypeByMethodName(method, "as");
58 Parameter parameter = method.findParameter("valueValue");
59
60 TypeData sourceType = null;
61 if (parameter != null) {
62 sourceType = getTypeSystem().findTypeData(parameter.getType());
63 }
64 TypeCastData cast = new TypeCastData(method, sourceType, targetType);
65
66 if (targetType != method.getReturnType().getTypeSystemType()) {
67 cast.addError("Cast type %s does not match to the returned type %s.", ElementUtils.getSimpleName(targetType.getPrimitiveType()),
68 method.getReturnType() != null ? ElementUtils.getSimpleName(method.getReturnType().getTypeSystemType().getPrimitiveType()) : null);
69 }
70 return cast;
71 }
72
73 @Override
74 public Class<? extends Annotation> getAnnotationType() {
75 return TypeCast.class;
76 }
77 }