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annotate 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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1 /*
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2 * Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.truffle.dsl.processor.parser;
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25 import java.lang.annotation.*;
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27 import javax.lang.model.element.*;
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29 import com.oracle.truffle.api.dsl.*;
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30 import com.oracle.truffle.dsl.processor.*;
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31 import com.oracle.truffle.dsl.processor.java.*;
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32 import com.oracle.truffle.dsl.processor.model.*;
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34 class TypeCastParser extends TypeSystemMethodParser<TypeCastData> {
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35
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36 public TypeCastParser(ProcessorContext context, TypeSystemData typeSystem) {
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37 super(context, typeSystem);
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38 }
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39
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40 @Override
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41 public MethodSpec createSpecification(ExecutableElement method, AnnotationMirror mirror) {
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42 TypeData targetType = findTypeByMethodName(method.getSimpleName().toString(), "as");
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43 if (targetType == null) {
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44 return null;
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45 }
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46 MethodSpec spec = new MethodSpec(new ParameterSpec("returnType", targetType.getPrimitiveType()));
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47 spec.addRequired(new ParameterSpec("value", getTypeSystem().getPrimitiveTypeMirrors()));
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48 return spec;
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49 }
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51 @Override
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52 public TypeCastData create(TemplateMethod method, boolean invalid) {
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53 if (invalid) {
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54 return new TypeCastData(method, null, null);
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55 }
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56
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57 TypeData targetType = findTypeByMethodName(method, "as");
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58 Parameter parameter = method.findParameter("valueValue");
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60 TypeData sourceType = null;
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61 if (parameter != null) {
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62 sourceType = getTypeSystem().findTypeData(parameter.getType());
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63 }
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64 TypeCastData cast = new TypeCastData(method, sourceType, targetType);
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65
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66 if (targetType != method.getReturnType().getTypeSystemType()) {
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67 cast.addError("Cast type %s does not match to the returned type %s.", ElementUtils.getSimpleName(targetType.getPrimitiveType()),
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68 method.getReturnType() != null ? ElementUtils.getSimpleName(method.getReturnType().getTypeSystemType().getPrimitiveType()) : null);
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69 }
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70 return cast;
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71 }
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73 @Override
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74 public Class<? extends Annotation> getAnnotationType() {
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75 return TypeCast.class;
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76 }
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77 }