Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.codegen.processor/src/com/oracle/truffle/codegen/processor/compiler/JavaCCompiler.java @ 9799:41de6947dbc9
VerifyUsageWithEquals: check for null before passing it to isAssignableForm()
author | Bernhard Urban <bernhard.urban@jku.at> |
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date | Thu, 23 May 2013 10:57:51 +0200 |
parents | 5e3d1a68664e |
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rev | line source |
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1 /* |
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2 * Copyright (c) 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.codegen.processor.compiler; |
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24 |
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25 import javax.annotation.processing.*; |
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26 import javax.lang.model.element.*; |
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27 |
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28 import com.oracle.truffle.codegen.processor.*; |
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29 |
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30 public class JavaCCompiler extends AbstractCompiler { |
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31 |
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32 public static boolean isValidElement(Element currentElement) { |
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33 try { |
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34 Class<?> elementClass = Class.forName("com.sun.tools.javac.code.Symbol"); |
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35 return elementClass.isAssignableFrom(currentElement.getClass()); |
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36 } catch (ClassNotFoundException e) { |
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37 return false; |
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38 } |
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39 } |
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40 |
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41 private static final Class[] getTreeAndTopLevelSignature = new Class[]{Element.class, AnnotationMirror.class, AnnotationValue.class}; |
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42 private static final Class[] getCharContentSignature = new Class[]{boolean.class}; |
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43 |
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44 @Override |
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45 public String getMethodBody(ProcessingEnvironment env, ExecutableElement method) { |
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46 try { |
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47 /* |
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48 * if (false) { Pair<JCTree, JCCompilationUnit> treeAndTopLevel = ((JavacElements) |
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49 * env.getElementUtils()).getTreeAndTopLevel(method, null, null); JCBlock block = |
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50 * ((JCMethodDecl) treeAndTopLevel.fst).getBody(); int startPos = block.pos; int endPos |
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51 * = block.endpos; String methodBody = |
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52 * treeAndTopLevel.snd.getSourceFile().getCharContent(true).subSequence(startPos + 1, |
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53 * endPos).toString(); return methodBody; } |
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54 */ |
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55 |
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56 Object treeAndTopLevel = getTreeAndTopLevel(env, method); |
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57 Object block = method(field(treeAndTopLevel, "fst"), "getBody"); |
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58 int startPos = (int) field(block, "pos"); |
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59 int endPos = (int) field(block, "endpos"); |
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60 return getContent(treeAndTopLevel).subSequence(startPos + 1, endPos).toString(); |
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61 } catch (Exception e) { |
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62 return Utils.printException(e); |
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63 } |
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64 } |
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65 |
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66 private static CharSequence getContent(Object treeAndTopLevel) throws Exception { |
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67 /* |
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68 * CharSequence content = treeAndTopLevel.snd.getSourceFile().getCharContent(true); |
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69 */ |
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70 return (CharSequence) method(method(field(treeAndTopLevel, "snd"), "getSourceFile"), "getCharContent", getCharContentSignature, true); |
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71 } |
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72 |
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73 private static Object getTreeAndTopLevel(ProcessingEnvironment env, Element element) throws Exception { |
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74 /* |
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75 * Pair<JCTree, JCCompilationUnit> treeAndTopLevel = ((JavacElements) |
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76 * env.getElementUtils()).getTreeAndTopLevel(method, null, null); |
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77 */ |
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78 return method(method(env, "getElementUtils"), "getTreeAndTopLevel", getTreeAndTopLevelSignature, element, null, null); |
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79 } |
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80 |
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81 @Override |
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82 public String getHeaderComment(ProcessingEnvironment env, Element type) { |
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83 try { |
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84 String content = getContent(getTreeAndTopLevel(env, type)).toString(); |
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85 return parseHeader(content); |
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86 } catch (Exception e) { |
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87 return Utils.printException(e); |
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88 } |
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89 } |
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90 |
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91 } |