Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/parser/ImplicitCastParser.java @ 20940:476374f3fe9a
Truffle-DSL: generate better polymorphic execute signatures
author | Christian Humer <christian.humer@gmail.com> |
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date | Tue, 14 Apr 2015 15:12:48 +0200 |
parents | 18c0f02fa4d2 |
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rev | line source |
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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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24 |
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25 import java.lang.annotation.*; |
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26 |
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27 import javax.lang.model.element.*; |
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28 import javax.lang.model.type.*; |
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29 |
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30 import com.oracle.truffle.api.dsl.*; |
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31 import com.oracle.truffle.dsl.processor.*; |
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32 import com.oracle.truffle.dsl.processor.java.*; |
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33 import com.oracle.truffle.dsl.processor.model.*; |
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34 |
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35 public class ImplicitCastParser extends TypeSystemMethodParser<ImplicitCastData> { |
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36 |
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37 public ImplicitCastParser(ProcessorContext context, TypeSystemData typeSystem) { |
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38 super(context, typeSystem); |
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39 } |
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40 |
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41 @Override |
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42 public Class<? extends Annotation> getAnnotationType() { |
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43 return ImplicitCast.class; |
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44 } |
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45 |
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46 @Override |
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47 public MethodSpec createSpecification(ExecutableElement method, AnnotationMirror mirror) { |
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48 MethodSpec spec = new MethodSpec(new ParameterSpec("target", getContext().getType(Object.class))); |
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49 spec.addRequired(new ParameterSpec("source", getContext().getType(Object.class))).setSignature(true); |
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50 return spec; |
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51 } |
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52 |
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53 @Override |
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54 public ImplicitCastData create(TemplateMethod method, boolean invalid) { |
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55 if (invalid) { |
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56 return new ImplicitCastData(method, null, null); |
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57 } |
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58 |
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59 Parameter target = method.findParameter("targetValue"); |
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60 Parameter source = method.findParameter("sourceValue"); |
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61 |
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62 TypeMirror targetType = target.getType(); |
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63 TypeMirror sourceType = source.getType(); |
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64 |
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65 if (ElementUtils.typeEquals(targetType, sourceType)) { |
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66 method.addError("Target type and source type of an @%s must not be the same type.", ImplicitCast.class.getSimpleName()); |
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67 } |
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68 |
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69 if (!method.getMethod().getModifiers().contains(Modifier.STATIC)) { |
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70 method.addError("@%s annotated method %s must be static.", ImplicitCast.class.getSimpleName(), method.getMethodName()); |
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71 } |
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72 |
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73 return new ImplicitCastData(method, sourceType, targetType); |
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74 } |
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75 } |