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AspectDeclaration.java 50KB

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  1. /* *******************************************************************
  2. * Copyright (c) 2002-2010 Contributors
  3. * All rights reserved.
  4. * This program and the accompanying materials are made available
  5. * under the terms of the Eclipse Public License v1.0
  6. * which accompanies this distribution and is available at
  7. * http://www.eclipse.org/legal/epl-v10.html
  8. *
  9. * Contributors:
  10. * PARC, Andy Clement (SpringSource)
  11. * ******************************************************************/
  12. package org.aspectj.ajdt.internal.compiler.ast;
  13. import java.lang.reflect.Modifier;
  14. import java.util.ArrayList;
  15. import java.util.HashMap;
  16. import java.util.Iterator;
  17. import java.util.List;
  18. import java.util.Map;
  19. import org.aspectj.ajdt.internal.compiler.ast.AccessForInlineVisitor.SuperAccessMethodPair;
  20. import org.aspectj.ajdt.internal.compiler.lookup.EclipseFactory;
  21. import org.aspectj.ajdt.internal.compiler.lookup.EclipseScope;
  22. import org.aspectj.ajdt.internal.compiler.lookup.EclipseSourceType;
  23. import org.aspectj.ajdt.internal.compiler.lookup.EclipseTypeMunger;
  24. import org.aspectj.ajdt.internal.compiler.lookup.HelperInterfaceBinding;
  25. import org.aspectj.ajdt.internal.compiler.lookup.InlineAccessFieldBinding;
  26. import org.aspectj.ajdt.internal.compiler.lookup.IntertypeMemberTypeFinder;
  27. import org.aspectj.ajdt.internal.compiler.lookup.PrivilegedHandler;
  28. import org.aspectj.org.eclipse.jdt.core.compiler.CharOperation;
  29. import org.aspectj.org.eclipse.jdt.internal.compiler.ClassFile;
  30. import org.aspectj.org.eclipse.jdt.internal.compiler.CompilationResult;
  31. import org.aspectj.org.eclipse.jdt.internal.compiler.ast.Annotation;
  32. import org.aspectj.org.eclipse.jdt.internal.compiler.ast.Clinit;
  33. import org.aspectj.org.eclipse.jdt.internal.compiler.ast.MethodDeclaration;
  34. import org.aspectj.org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
  35. import org.aspectj.org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
  36. import org.aspectj.org.eclipse.jdt.internal.compiler.codegen.BranchLabel;
  37. import org.aspectj.org.eclipse.jdt.internal.compiler.codegen.CodeStream;
  38. import org.aspectj.org.eclipse.jdt.internal.compiler.codegen.ExceptionLabel;
  39. import org.aspectj.org.eclipse.jdt.internal.compiler.codegen.Opcodes;
  40. import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding;
  41. import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.Binding;
  42. import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ClassScope;
  43. import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.FieldBinding;
  44. import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.InvocationSite;
  45. import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.MethodBinding;
  46. import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ParameterizedTypeBinding;
  47. import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding;
  48. import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.Scope;
  49. import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding;
  50. import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.TagBits;
  51. import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
  52. import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.UnresolvedReferenceBinding;
  53. import org.aspectj.weaver.AjAttribute;
  54. import org.aspectj.weaver.AjcMemberMaker;
  55. import org.aspectj.weaver.NameMangler;
  56. import org.aspectj.weaver.NewMemberClassTypeMunger;
  57. import org.aspectj.weaver.ReferenceType;
  58. import org.aspectj.weaver.ResolvedMember;
  59. import org.aspectj.weaver.ResolvedType;
  60. import org.aspectj.weaver.Shadow;
  61. import org.aspectj.weaver.UnresolvedType;
  62. import org.aspectj.weaver.patterns.Declare;
  63. import org.aspectj.weaver.patterns.FormalBinding;
  64. import org.aspectj.weaver.patterns.PerClause;
  65. import org.aspectj.weaver.patterns.PerFromSuper;
  66. import org.aspectj.weaver.patterns.PerSingleton;
  67. import org.aspectj.weaver.patterns.TypePattern;
  68. import com.sun.org.apache.xpath.internal.compiler.OpCodes;
  69. /**
  70. * Represents an aspect declaration.
  71. *
  72. * @author PARC
  73. * @author Andy Clement
  74. */
  75. public class AspectDeclaration extends TypeDeclaration {
  76. // public IAjDeclaration[] ajDeclarations;
  77. // private AjAttribute.Aspect aspectAttribute;
  78. public PerClause perClause;
  79. public ResolvedMember aspectOfMethod;
  80. public ResolvedMember ptwGetWithinTypeNameMethod;
  81. public ResolvedMember hasAspectMethod;
  82. public Map<ResolvedMember, Binding> accessForInline = new HashMap<ResolvedMember, Binding>();
  83. public Map<ResolvedMember, AccessForInlineVisitor.SuperAccessMethodPair> superAccessForInline = new HashMap<ResolvedMember, AccessForInlineVisitor.SuperAccessMethodPair>();
  84. public boolean isPrivileged;
  85. public EclipseSourceType concreteName;
  86. public ReferenceType typeX;
  87. public EclipseFactory factory; // ??? should use this consistently
  88. public int adviceCounter = 1; // Used as a part of the generated name for advice methods
  89. public int declareCounter = 1; // Used as a part of the generated name for methods representing declares
  90. // for better error messages in 1.0 to 1.1 transition
  91. public TypePattern dominatesPattern;
  92. private int declaredModifiers;
  93. public AspectDeclaration(CompilationResult compilationResult) {
  94. super(compilationResult);
  95. // perClause = new PerSingleton();
  96. }
  97. public boolean isAbstract() {
  98. return (modifiers & ClassFileConstants.AccAbstract) != 0;
  99. }
  100. public void resolve() {
  101. declaredModifiers = modifiers; // remember our modifiers, we're going to be public in generateCode
  102. if (binding == null) {
  103. ignoreFurtherInvestigation = true;
  104. return;
  105. }
  106. super.resolve();
  107. }
  108. public void checkSpec(ClassScope scope) {
  109. if (ignoreFurtherInvestigation) {
  110. return;
  111. }
  112. if (dominatesPattern != null) {
  113. scope.problemReporter().signalError(
  114. dominatesPattern.getStart(),
  115. dominatesPattern.getEnd(),
  116. "dominates has changed for 1.1, use 'declare precedence: " + new String(this.name) + ", "
  117. + dominatesPattern.toString() + ";' " + "in the body of the aspect instead");
  118. }
  119. if (!isAbstract()) {
  120. MethodBinding[] methods = binding.methods();
  121. for (int i = 0, len = methods.length; i < len; i++) {
  122. MethodBinding m = methods[i];
  123. if (m.isConstructor()) {
  124. // this make all constructors in aspects invisible and thus uncallable
  125. // XXX this only works for aspects that come from source
  126. methods[i] = new MethodBinding(m, binding) {
  127. public boolean canBeSeenBy(InvocationSite invocationSite, Scope scope) {
  128. return false;
  129. }
  130. };
  131. if (m.parameters != null && m.parameters.length != 0) {
  132. scope.problemReporter().signalError(m.sourceStart(), m.sourceEnd(),
  133. "only zero-argument constructors allowed in concrete aspect");
  134. }
  135. }
  136. }
  137. // check the aspect was not declared generic, only abstract aspects can have type params
  138. if (typeParameters != null && typeParameters.length > 0) {
  139. scope.problemReporter().signalError(sourceStart(), sourceEnd(), "only abstract aspects can have type parameters");
  140. }
  141. }
  142. if (this.enclosingType != null) {
  143. if (!Modifier.isStatic(modifiers)) {
  144. scope.problemReporter().signalError(sourceStart, sourceEnd, "inner aspects must be static");
  145. ignoreFurtherInvestigation = true;
  146. return;
  147. }
  148. }
  149. EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(scope);
  150. ResolvedType myType = typeX;
  151. // if (myType == null) System.err.println("bad myType for: " + this);
  152. ResolvedType superType = myType.getSuperclass();
  153. // can't be Serializable/Cloneable unless -XserializableAspects
  154. if (!world.isXSerializableAspects()) {
  155. if (world.getWorld().getCoreType(UnresolvedType.SERIALIZABLE).isAssignableFrom(myType)) {
  156. scope.problemReporter().signalError(sourceStart, sourceEnd, "aspects may not implement Serializable");
  157. ignoreFurtherInvestigation = true;
  158. return;
  159. }
  160. if (world.getWorld().getCoreType(UnresolvedType.CLONEABLE).isAssignableFrom(myType)) {
  161. scope.problemReporter().signalError(sourceStart, sourceEnd, "aspects may not implement Cloneable");
  162. ignoreFurtherInvestigation = true;
  163. return;
  164. }
  165. }
  166. if (superType.isAspect()) {
  167. if (!superType.isAbstract()) {
  168. scope.problemReporter().signalError(sourceStart, sourceEnd, "can not extend a concrete aspect");
  169. ignoreFurtherInvestigation = true;
  170. return;
  171. }
  172. // if super type is generic, check that we have fully parameterized it
  173. if (superType.isRawType()) {
  174. scope.problemReporter().signalError(sourceStart, sourceEnd,
  175. "a generic super-aspect must be fully parameterized in an extends clause");
  176. ignoreFurtherInvestigation = true;
  177. return;
  178. }
  179. }
  180. }
  181. private FieldBinding initFailureField = null;
  182. /**
  183. * AMC - this method is called by the AtAspectJVisitor during beforeCompilation processing in the AjCompiler adapter. We use
  184. * this hook to add in the @AspectJ annotations.
  185. */
  186. public void addAtAspectJAnnotations() {
  187. Annotation atAspectAnnotation = AtAspectJAnnotationFactory.createAspectAnnotation(perClause.toDeclarationString(),
  188. declarationSourceStart);
  189. Annotation privilegedAnnotation = null;
  190. if (isPrivileged) {
  191. privilegedAnnotation = AtAspectJAnnotationFactory.createPrivilegedAnnotation(declarationSourceStart);
  192. }
  193. Annotation[] toAdd = new Annotation[isPrivileged ? 2 : 1];
  194. toAdd[0] = atAspectAnnotation;
  195. if (isPrivileged) {
  196. toAdd[1] = privilegedAnnotation;
  197. }
  198. if (annotations == null) {
  199. annotations = toAdd;
  200. } else {
  201. Annotation[] old = annotations;
  202. annotations = new Annotation[annotations.length + toAdd.length];
  203. System.arraycopy(old, 0, annotations, 0, old.length);
  204. System.arraycopy(toAdd, 0, annotations, old.length, toAdd.length);
  205. }
  206. }
  207. public void generateCode(ClassFile enclosingClassFile) {
  208. if (ignoreFurtherInvestigation) {
  209. if (binding == null) {
  210. return;
  211. }
  212. ClassFile.createProblemType(this, scope.referenceCompilationUnit().compilationResult);
  213. return;
  214. }
  215. // make me and my binding public
  216. this.modifiers = AstUtil.makePublic(this.modifiers);
  217. this.binding.modifiers = AstUtil.makePublic(this.binding.modifiers);
  218. if (!isAbstract()) {
  219. if (perClause != null && perClause.getKind() == PerClause.SINGLETON) {
  220. initFailureField = factory.createSyntheticFieldBinding(binding, AjcMemberMaker.initFailureCauseField(typeX));
  221. }
  222. // binding.addSyntheticField((SyntheticFieldBinding)initFailureField);
  223. // initFailureField = factory.makeFieldBinding(AjcMemberMaker.initFailureCauseField(typeX));
  224. // binding.addField(initFailureField);
  225. if (perClause == null) {
  226. // we've already produced an error for this
  227. } else if (perClause.getKind() == PerClause.SINGLETON) {
  228. factory.createSyntheticFieldBinding(binding, AjcMemberMaker.perSingletonField(typeX));
  229. // CUSTARD binding.addField(factory.makeFieldBinding(AjcMemberMaker.perSingletonField(typeX)));
  230. // CUSTARD
  231. methods[0] = new AspectClinit((Clinit) methods[0], compilationResult, false, true, initFailureField);
  232. } else if (perClause.getKind() == PerClause.PERCFLOW) {
  233. factory.createSyntheticFieldBinding(binding, AjcMemberMaker.perCflowField(typeX));
  234. // CUSTARD binding.addField(factory.makeFieldBinding(AjcMemberMaker.perCflowField(typeX)));
  235. methods[0] = new AspectClinit((Clinit) methods[0], compilationResult, true, false, null);
  236. } else if (perClause.getKind() == PerClause.PEROBJECT) {
  237. // binding.addField(
  238. // world.makeFieldBinding(
  239. // AjcMemberMaker.perCflowField(
  240. // typeX)));
  241. } else if (perClause.getKind() == PerClause.PERTYPEWITHIN) {
  242. factory.createSyntheticFieldBinding(binding, AjcMemberMaker.perTypeWithinWithinTypeField(typeX, typeX));
  243. // PTWIMPL Add field for storing typename in aspect for which the aspect instance exists
  244. // binding.addField(factory.makeFieldBinding(AjcMemberMaker.perTypeWithinWithinTypeField(typeX,typeX)));
  245. } else {
  246. throw new RuntimeException("unimplemented");
  247. }
  248. }
  249. if (EclipseFactory.DEBUG) {
  250. System.out.println(toString());
  251. }
  252. super.generateCode(enclosingClassFile);
  253. }
  254. public boolean needClassInitMethod() {
  255. return true;
  256. }
  257. @SuppressWarnings("unchecked")
  258. protected void generateAttributes(ClassFile classFile) {
  259. if (!isAbstract()) {
  260. generatePerSupportMembers(classFile);
  261. }
  262. generateInlineAccessMembers(classFile);
  263. addVersionAttributeIfNecessary(classFile);
  264. classFile.extraAttributes.add(new EclipseAttributeAdapter(new AjAttribute.Aspect(perClause)));
  265. if (binding.privilegedHandler != null) {
  266. // Only build the attribute if necessary
  267. PrivilegedHandler privilegedHandler = (PrivilegedHandler) binding.privilegedHandler;
  268. ResolvedMember[] members = privilegedHandler.getMembers();
  269. if (members.length > 0) {
  270. classFile.extraAttributes.add(new EclipseAttributeAdapter(new AjAttribute.PrivilegedAttribute(members)));
  271. }
  272. }
  273. if (memberTypes != null) {
  274. for (int i = 0; i < memberTypes.length; i++) {
  275. if (memberTypes[i] instanceof IntertypeMemberClassDeclaration) {
  276. IntertypeMemberClassDeclaration itdMemberClassDeclaration = (IntertypeMemberClassDeclaration) memberTypes[i];
  277. AjAttribute attribute = itdMemberClassDeclaration.getAttribute();
  278. if (attribute != null) {
  279. classFile.extraAttributes.add(new EclipseAttributeAdapter(attribute));
  280. }
  281. }
  282. }
  283. }
  284. // XXX need to get this attribute on anyone with a pointcut for good errors
  285. classFile.extraAttributes.add(new EclipseAttributeAdapter(new AjAttribute.SourceContextAttribute(new String(
  286. compilationResult().getFileName()), compilationResult().lineSeparatorPositions)));
  287. super.generateAttributes(classFile);
  288. }
  289. /**
  290. * A pointcut might have already added the attribute, let's not add it again.
  291. */
  292. @SuppressWarnings("unchecked")
  293. private void addVersionAttributeIfNecessary(ClassFile classFile) {
  294. for (Iterator iter = classFile.extraAttributes.iterator(); iter.hasNext();) {
  295. EclipseAttributeAdapter element = (EclipseAttributeAdapter) iter.next();
  296. if (CharOperation.equals(element.getNameChars(), weaverVersionChars)) {
  297. return;
  298. }
  299. }
  300. classFile.extraAttributes.add(new EclipseAttributeAdapter(new AjAttribute.WeaverVersionInfo()));
  301. }
  302. private static char[] weaverVersionChars = "org.aspectj.weaver.WeaverVersion".toCharArray();
  303. private void generateInlineAccessMembers(ClassFile classFile) {
  304. for (Iterator<SuperAccessMethodPair> i = superAccessForInline.values().iterator(); i.hasNext();) {
  305. AccessForInlineVisitor.SuperAccessMethodPair pair = i.next();
  306. generateSuperAccessMethod(classFile, pair.accessMethod, pair.originalMethod);
  307. }
  308. for (Iterator<Map.Entry<ResolvedMember, Binding>> i = accessForInline.entrySet().iterator(); i.hasNext();) {
  309. Map.Entry<ResolvedMember, Binding> e = i.next();
  310. generateInlineAccessMethod(classFile, e.getValue(), e.getKey());
  311. }
  312. }
  313. private void generatePerSupportMembers(ClassFile classFile) {
  314. if (isAbstract()) {
  315. return;
  316. }
  317. // XXX otherwise we need to have this (error handling?)
  318. if (aspectOfMethod == null) {
  319. return;
  320. }
  321. if (perClause == null) {
  322. System.err.println("has null perClause: " + this);
  323. return;
  324. }
  325. // EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  326. if (perClause.getKind() == PerClause.SINGLETON) {
  327. generatePerSingletonAspectOfMethod(classFile);
  328. generatePerSingletonHasAspectMethod(classFile);
  329. generatePerSingletonAjcClinitMethod(classFile);
  330. } else if (perClause.getKind() == PerClause.PERCFLOW) {
  331. generatePerCflowAspectOfMethod(classFile);
  332. generatePerCflowHasAspectMethod(classFile);
  333. generatePerCflowPushMethod(classFile);
  334. generatePerCflowAjcClinitMethod(classFile);
  335. } else if (perClause.getKind() == PerClause.PEROBJECT) {
  336. TypeBinding interfaceType = generatePerObjectInterface(classFile);
  337. generatePerObjectAspectOfMethod(classFile, interfaceType);
  338. generatePerObjectHasAspectMethod(classFile, interfaceType);
  339. generatePerObjectBindMethod(classFile, interfaceType);
  340. } else if (perClause.getKind() == PerClause.PERTYPEWITHIN) {
  341. // PTWIMPL Generate the methods required *in the aspect*
  342. generatePerTypeWithinAspectOfMethod(classFile); // public static <aspecttype> aspectOf(java.lang.Class)
  343. generatePerTypeWithinGetInstanceMethod(classFile); // private static <aspecttype> ajc$getInstance(Class c) throws
  344. // Exception
  345. generatePerTypeWithinHasAspectMethod(classFile);
  346. generatePerTypeWithinCreateAspectInstanceMethod(classFile); // generate public static X ajc$createAspectInstance(Class
  347. // forClass) {
  348. generatePerTypeWithinGetWithinTypeNameMethod(classFile);
  349. } else {
  350. throw new RuntimeException("unimplemented");
  351. }
  352. }
  353. private static interface BodyGenerator {
  354. public void generate(CodeStream codeStream);
  355. }
  356. private void generateMethod(ClassFile classFile, ResolvedMember member, BodyGenerator gen) {
  357. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  358. generateMethod(classFile, world.makeMethodBinding(member), gen);
  359. }
  360. private void generateMethod(ClassFile classFile, MethodBinding methodBinding, BodyGenerator gen) {
  361. generateMethod(classFile, methodBinding, null, gen);
  362. }
  363. protected List<EclipseAttributeAdapter> makeEffectiveSignatureAttribute(ResolvedMember sig, Shadow.Kind kind, boolean weaveBody) {
  364. List<EclipseAttributeAdapter> l = new ArrayList<EclipseAttributeAdapter>(1);
  365. l.add(new EclipseAttributeAdapter(new AjAttribute.EffectiveSignatureAttribute(sig, kind, weaveBody)));
  366. return l;
  367. }
  368. /*
  369. * additionalAttributes allows us to pass some optional attributes we want to attach to the method we generate. Currently this
  370. * is used for inline accessor methods that have been generated to allow private field references or private method calls to be
  371. * inlined (PR71377). In these cases the optional attribute is an effective signature attribute which means calls to these
  372. * methods are able to masquerade as any join point (a field set, field get or method call). The effective signature attribute
  373. * is 'unwrapped' in BcelClassWeaver.matchInvokeInstruction()
  374. */
  375. private void generateMethod(ClassFile classFile, MethodBinding methodBinding, List additionalAttributes, BodyGenerator gen) {
  376. // EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  377. classFile.generateMethodInfoHeader(methodBinding);
  378. int methodAttributeOffset = classFile.contentsOffset;
  379. int attributeNumber;
  380. if (additionalAttributes != null) { // mini optimization
  381. List attrs = new ArrayList();
  382. attrs.addAll(AstUtil.getAjSyntheticAttribute());
  383. attrs.addAll(additionalAttributes);
  384. attributeNumber = classFile.generateMethodInfoAttributes(methodBinding, attrs);
  385. } else {
  386. attributeNumber = classFile.generateMethodInfoAttributes(methodBinding, AstUtil.getAjSyntheticAttribute());
  387. }
  388. int codeAttributeOffset = classFile.contentsOffset;
  389. classFile.generateCodeAttributeHeader();
  390. CodeStream codeStream = classFile.codeStream;
  391. // Use reset() rather than init()
  392. // XXX We need a scope to keep reset happy, initializerScope is *not* the right one, but it works !
  393. // codeStream.init(classFile);
  394. // codeStream.initializeMaxLocals(methodBinding);
  395. MethodDeclaration md = AstUtil.makeMethodDeclaration(methodBinding);
  396. md.scope = initializerScope;
  397. codeStream.reset(md, classFile);
  398. // body starts here
  399. gen.generate(codeStream);
  400. // body ends here
  401. if (codeStream.pcToSourceMapSize == 0) {
  402. codeStream.recordPositionsFrom(0, 1);
  403. }
  404. boolean b = ((codeStream.generateAttributes & ClassFileConstants.ATTR_VARS) != 0 ? true : false); // pr148693
  405. if (codeStream.maxLocals == 0) {
  406. codeStream.generateAttributes &= ~ClassFileConstants.ATTR_VARS;
  407. }
  408. classFile.completeCodeAttribute(codeAttributeOffset);
  409. if (b) {
  410. codeStream.generateAttributes |= ClassFileConstants.ATTR_VARS;
  411. }
  412. attributeNumber++;
  413. classFile.completeMethodInfo(methodBinding,methodAttributeOffset, attributeNumber);
  414. }
  415. private void generatePerCflowAspectOfMethod(ClassFile classFile) {
  416. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  417. generateMethod(classFile, aspectOfMethod, new BodyGenerator() {
  418. public void generate(CodeStream codeStream) {
  419. // body starts here
  420. codeStream.fieldAccess(Opcodes.OPC_getstatic,world.makeFieldBinding(AjcMemberMaker.perCflowField(typeX)),null);
  421. codeStream.invoke(Opcodes.OPC_invokevirtual,world.makeMethodBindingForCall(AjcMemberMaker.cflowStackPeekInstance()),null);
  422. codeStream.checkcast(binding);
  423. codeStream.areturn();
  424. // body ends here
  425. }
  426. });
  427. }
  428. private void generatePerCflowHasAspectMethod(ClassFile classFile) {
  429. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  430. generateMethod(classFile, hasAspectMethod, new BodyGenerator() {
  431. public void generate(CodeStream codeStream) {
  432. // body starts here
  433. codeStream.fieldAccess(Opcodes.OPC_getstatic,world.makeFieldBinding(AjcMemberMaker.perCflowField(typeX)),null);
  434. codeStream.invoke(Opcodes.OPC_invokevirtual,world.makeMethodBindingForCall(AjcMemberMaker.cflowStackIsValid()),null);
  435. codeStream.ireturn();
  436. // body ends here
  437. }
  438. });
  439. }
  440. private void generatePerCflowPushMethod(ClassFile classFile) {
  441. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  442. generateMethod(classFile, world.makeMethodBinding(AjcMemberMaker.perCflowPush(factory.fromBinding(binding))),
  443. new BodyGenerator() {
  444. public void generate(CodeStream codeStream) {
  445. // body starts here
  446. codeStream.fieldAccess(Opcodes.OPC_getstatic,world.makeFieldBinding(AjcMemberMaker.perCflowField(typeX)),null);
  447. codeStream.new_(binding);
  448. codeStream.dup();
  449. codeStream.invoke(Opcodes.OPC_invokespecial,new MethodBinding(0, "<init>".toCharArray(), TypeBinding.VOID, new TypeBinding[0],
  450. new ReferenceBinding[0], binding),null);
  451. codeStream.invoke(Opcodes.OPC_invokevirtual, world.makeMethodBindingForCall(AjcMemberMaker.cflowStackPushInstance()), null);
  452. codeStream.return_();
  453. // body ends here
  454. }
  455. });
  456. }
  457. private void generatePerCflowAjcClinitMethod(ClassFile classFile) {
  458. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  459. generateMethod(classFile, world.makeMethodBinding(AjcMemberMaker.ajcPreClinitMethod(world.fromBinding(binding))),
  460. new BodyGenerator() {
  461. public void generate(CodeStream codeStream) {
  462. // body starts here
  463. codeStream.new_(world.makeTypeBinding(AjcMemberMaker.CFLOW_STACK_TYPE));
  464. codeStream.dup();
  465. codeStream.invoke(Opcodes.OPC_invokespecial,world.makeMethodBindingForCall(AjcMemberMaker.cflowStackInit()),null);
  466. codeStream.fieldAccess(Opcodes.OPC_putstatic,world.makeFieldBinding(AjcMemberMaker.perCflowField(typeX)),null);
  467. codeStream.return_();
  468. // body ends here
  469. }
  470. });
  471. }
  472. private TypeBinding generatePerObjectInterface(ClassFile classFile) {
  473. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  474. UnresolvedType interfaceTypeX = AjcMemberMaker.perObjectInterfaceType(typeX);
  475. HelperInterfaceBinding interfaceType = new HelperInterfaceBinding(this.binding, interfaceTypeX);
  476. world.addTypeBindingAndStoreInWorld(interfaceType);
  477. interfaceType.addMethod(world, AjcMemberMaker.perObjectInterfaceGet(typeX));
  478. interfaceType.addMethod(world, AjcMemberMaker.perObjectInterfaceSet(typeX));
  479. interfaceType.generateClass(compilationResult, classFile);
  480. return interfaceType;
  481. }
  482. /*
  483. * private void generatePerTypeWithinGetWithinTypeMethod(ClassFile classFile) { final EclipseFactory world =
  484. * EclipseFactory.fromScopeLookupEnvironment(this.scope); generateMethod(classFile,ptwGetWithinTypeMethod,new BodyGenerator() {
  485. * public void generate(CodeStream codeStream) { codeStream.aload_0();
  486. * codeStream.getfield(world.makeFieldBinding(AjcMemberMaker.perTypeWithinWithinTypeField(typeX,typeX))); codeStream.areturn();
  487. * }}); }
  488. */
  489. // PTWIMPL Generate aspectOf() method
  490. private void generatePerTypeWithinAspectOfMethod(ClassFile classFile) {
  491. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  492. generateMethod(classFile, aspectOfMethod, new BodyGenerator() {
  493. public void generate(CodeStream codeStream) {
  494. BranchLabel instanceFound = new BranchLabel(codeStream);
  495. ExceptionLabel anythingGoesWrong = new ExceptionLabel(codeStream, world
  496. .makeTypeBinding(UnresolvedType.JL_EXCEPTION));
  497. anythingGoesWrong.placeStart();
  498. codeStream.aload_0();
  499. codeStream.invoke(Opcodes.OPC_invokestatic,world.makeMethodBindingForCall(AjcMemberMaker.perTypeWithinGetInstance(typeX)),null);
  500. codeStream.astore_1();
  501. codeStream.aload_1();
  502. codeStream.ifnonnull(instanceFound);
  503. codeStream.new_(world.makeTypeBinding(AjcMemberMaker.NO_ASPECT_BOUND_EXCEPTION));
  504. codeStream.dup();
  505. codeStream.ldc(typeX.getName());
  506. codeStream.aconst_null();
  507. codeStream.invoke(Opcodes.OPC_invokespecial,world.makeMethodBindingForCall(AjcMemberMaker.noAspectBoundExceptionInit2()),null);
  508. codeStream.athrow();
  509. instanceFound.place();
  510. codeStream.aload_1();
  511. codeStream.areturn();
  512. anythingGoesWrong.placeEnd();
  513. anythingGoesWrong.place();
  514. codeStream.astore_1();
  515. codeStream.new_(world.makeTypeBinding(AjcMemberMaker.NO_ASPECT_BOUND_EXCEPTION));
  516. codeStream.dup();
  517. // Run the simple ctor for NABE
  518. codeStream.invoke(Opcodes.OPC_invokespecial,world.makeMethodBindingForCall(AjcMemberMaker.noAspectBoundExceptionInit()),null);
  519. codeStream.athrow();
  520. }
  521. });
  522. }
  523. private void generatePerObjectAspectOfMethod(ClassFile classFile, final TypeBinding interfaceType) {
  524. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  525. generateMethod(classFile, aspectOfMethod, new BodyGenerator() {
  526. public void generate(CodeStream codeStream) {
  527. // body starts here
  528. BranchLabel wrongType = new BranchLabel(codeStream);
  529. BranchLabel popWrongType = new BranchLabel(codeStream);
  530. codeStream.aload_0();
  531. codeStream.instance_of(interfaceType);
  532. codeStream.ifeq(wrongType);
  533. codeStream.aload_0();
  534. codeStream.checkcast(interfaceType);
  535. codeStream.invoke(Opcodes.OPC_invokeinterface,world.makeMethodBindingForCall(AjcMemberMaker.perObjectInterfaceGet(typeX)),null);
  536. codeStream.dup();
  537. codeStream.ifnull(popWrongType);
  538. codeStream.areturn();
  539. popWrongType.place();
  540. codeStream.pop();
  541. wrongType.place();
  542. codeStream.new_(world.makeTypeBinding(AjcMemberMaker.NO_ASPECT_BOUND_EXCEPTION));
  543. codeStream.dup();
  544. codeStream.invoke(Opcodes.OPC_invokespecial,world.makeMethodBindingForCall(AjcMemberMaker.noAspectBoundExceptionInit()),null);
  545. codeStream.athrow();
  546. // body ends here
  547. }
  548. });
  549. }
  550. private void generatePerObjectHasAspectMethod(ClassFile classFile, final TypeBinding interfaceType) {
  551. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  552. generateMethod(classFile, hasAspectMethod, new BodyGenerator() {
  553. public void generate(CodeStream codeStream) {
  554. // body starts here
  555. BranchLabel wrongType = new BranchLabel(codeStream);
  556. codeStream.aload_0();
  557. codeStream.instance_of(interfaceType);
  558. codeStream.ifeq(wrongType);
  559. codeStream.aload_0();
  560. codeStream.checkcast(interfaceType);
  561. codeStream.invoke(Opcodes.OPC_invokeinterface,world.makeMethodBindingForCall(AjcMemberMaker.perObjectInterfaceGet(typeX)),null);
  562. codeStream.ifnull(wrongType);
  563. codeStream.iconst_1();
  564. codeStream.ireturn();
  565. wrongType.place();
  566. codeStream.iconst_0();
  567. codeStream.ireturn();
  568. // body ends here
  569. }
  570. });
  571. }
  572. // PTWIMPL Generate hasAspect() method
  573. private void generatePerTypeWithinHasAspectMethod(ClassFile classFile) {
  574. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  575. generateMethod(classFile, hasAspectMethod, new BodyGenerator() {
  576. public void generate(CodeStream codeStream) {
  577. ExceptionLabel goneBang = new ExceptionLabel(codeStream, world.makeTypeBinding(UnresolvedType.JL_EXCEPTION));
  578. BranchLabel noInstanceExists = new BranchLabel(codeStream);
  579. BranchLabel leave = new BranchLabel(codeStream);
  580. goneBang.placeStart();
  581. codeStream.aload_0();
  582. codeStream.invoke(Opcodes.OPC_invokestatic,world.makeMethodBinding(AjcMemberMaker.perTypeWithinGetInstance(typeX)),null);
  583. codeStream.ifnull(noInstanceExists);
  584. codeStream.iconst_1();
  585. codeStream.goto_(leave);
  586. noInstanceExists.place();
  587. codeStream.iconst_0();
  588. leave.place();
  589. goneBang.placeEnd();
  590. codeStream.ireturn();
  591. goneBang.place();
  592. codeStream.astore_1();
  593. codeStream.iconst_0();
  594. codeStream.ireturn();
  595. }
  596. });
  597. }
  598. private void generatePerObjectBindMethod(ClassFile classFile, final TypeBinding interfaceType) {
  599. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  600. generateMethod(classFile, AjcMemberMaker.perObjectBind(world.fromBinding(binding)), new BodyGenerator() {
  601. public void generate(CodeStream codeStream) {
  602. // body starts here
  603. BranchLabel wrongType = new BranchLabel(codeStream);
  604. codeStream.aload_0();
  605. codeStream.instance_of(interfaceType);
  606. codeStream.ifeq(wrongType); // XXX this case might call for screaming
  607. codeStream.aload_0();
  608. codeStream.checkcast(interfaceType);
  609. codeStream.invoke(Opcodes.OPC_invokeinterface,world.makeMethodBindingForCall(AjcMemberMaker.perObjectInterfaceGet(typeX)),null);
  610. // XXX should do a check for null here and throw a NoAspectBound
  611. codeStream.ifnonnull(wrongType);
  612. codeStream.aload_0();
  613. codeStream.checkcast(interfaceType);
  614. codeStream.new_(binding);
  615. codeStream.dup();
  616. codeStream.invoke(Opcodes.OPC_invokespecial,new MethodBinding(0, "<init>".toCharArray(), TypeBinding.VOID, new TypeBinding[0],
  617. new ReferenceBinding[0], binding),null);
  618. codeStream.invoke(Opcodes.OPC_invokeinterface,world.makeMethodBindingForCall(AjcMemberMaker.perObjectInterfaceSet(typeX)),null);
  619. wrongType.place();
  620. codeStream.return_();
  621. // body ends here
  622. }
  623. });
  624. }
  625. private void generatePerTypeWithinGetWithinTypeNameMethod(ClassFile classFile) {
  626. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  627. // Code:
  628. /*
  629. * Code: Stack=1, Locals=1, Args_size=1 0: aload_0 1: getfield #14; //Field ajc$withinType:Ljava/lang/String; 4: areturn
  630. */
  631. generateMethod(classFile,
  632. AjcMemberMaker.perTypeWithinGetWithinTypeNameMethod(world.fromBinding(binding), world.getWorld().isInJava5Mode()),
  633. new BodyGenerator() {
  634. public void generate(CodeStream codeStream) {
  635. ExceptionLabel exc = new ExceptionLabel(codeStream, world.makeTypeBinding(UnresolvedType.JL_EXCEPTION));
  636. exc.placeStart();
  637. codeStream.aload_0();
  638. codeStream.fieldAccess(Opcodes.OPC_getfield,world.makeFieldBinding(AjcMemberMaker.perTypeWithinWithinTypeField(typeX, typeX)),null);
  639. codeStream.areturn();
  640. }
  641. });
  642. }
  643. // PTWIMPL Generate getInstance method
  644. private void generatePerTypeWithinGetInstanceMethod(ClassFile classFile) {
  645. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  646. generateMethod(classFile, AjcMemberMaker.perTypeWithinGetInstance(world.fromBinding(binding)), new BodyGenerator() {
  647. public void generate(CodeStream codeStream) {
  648. ExceptionLabel exc = new ExceptionLabel(codeStream, world.makeTypeBinding(UnresolvedType.JL_EXCEPTION));
  649. exc.placeStart();
  650. codeStream.aload_0();
  651. codeStream.ldc(NameMangler.perTypeWithinLocalAspectOf(typeX));
  652. codeStream.aconst_null();
  653. codeStream.invoke(Opcodes.OPC_invokevirtual,new MethodBinding(0, "getDeclaredMethod".toCharArray(),
  654. world.makeTypeBinding(UnresolvedType.forSignature("Ljava/lang/reflect/Method;")), // return type
  655. new TypeBinding[] { world.makeTypeBinding(UnresolvedType.forSignature("Ljava/lang/String;")),
  656. world.makeTypeBinding(UnresolvedType.forSignature("[Ljava/lang/Class;")) },
  657. new ReferenceBinding[0], (ReferenceBinding) world.makeTypeBinding(UnresolvedType.JL_CLASS)),null);
  658. codeStream.astore_1();
  659. codeStream.aload_1();
  660. codeStream.aconst_null();
  661. codeStream.aconst_null();
  662. codeStream.invoke(Opcodes.OPC_invokevirtual,new MethodBinding(0, "invoke".toCharArray(), world.makeTypeBinding(UnresolvedType.OBJECT),
  663. new TypeBinding[] { world.makeTypeBinding(UnresolvedType.OBJECT),
  664. world.makeTypeBinding(UnresolvedType.forSignature("[Ljava/lang/Object;")) },
  665. new ReferenceBinding[0], (ReferenceBinding) world.makeTypeBinding(UnresolvedType.JAVA_LANG_REFLECT_METHOD)),null);
  666. codeStream.checkcast(world.makeTypeBinding(typeX));
  667. codeStream.astore_2();
  668. codeStream.aload_2();
  669. exc.placeEnd();
  670. codeStream.areturn();
  671. exc.place();
  672. codeStream.astore_1();
  673. // this just returns null now - the old version used to throw the caught exception!
  674. codeStream.aconst_null();
  675. codeStream.areturn();
  676. }
  677. });
  678. }
  679. private void generatePerTypeWithinCreateAspectInstanceMethod(ClassFile classFile) {
  680. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  681. generateMethod(classFile, AjcMemberMaker.perTypeWithinCreateAspectInstance(world.fromBinding(binding)),
  682. new BodyGenerator() {
  683. public void generate(CodeStream codeStream) {
  684. codeStream.new_(world.makeTypeBinding(typeX));
  685. codeStream.dup();
  686. codeStream.invoke(Opcodes.OPC_invokespecial,new MethodBinding(0, "<init>".toCharArray(), TypeBinding.VOID, new TypeBinding[0],
  687. new ReferenceBinding[0], binding),null);
  688. codeStream.astore_1();
  689. codeStream.aload_1();
  690. codeStream.aload_0();
  691. codeStream.fieldAccess(Opcodes.OPC_putfield,world.makeFieldBinding(AjcMemberMaker.perTypeWithinWithinTypeField(typeX, typeX)),null);
  692. codeStream.aload_1();
  693. codeStream.areturn();
  694. }
  695. });
  696. }
  697. private void generatePerSingletonAspectOfMethod(ClassFile classFile) {
  698. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  699. generateMethod(classFile, aspectOfMethod, new BodyGenerator() {
  700. public void generate(CodeStream codeStream) {
  701. // Old style aspectOf() method which confused decompilers
  702. // // body starts here
  703. // codeStream.getstatic(world.makeFieldBinding(AjcMemberMaker.perSingletonField(
  704. // typeX)));
  705. // Label isNull = new Label(codeStream);
  706. // codeStream.dup();
  707. // codeStream.ifnull(isNull);
  708. // codeStream.areturn();
  709. // isNull.place();
  710. //
  711. // codeStream.incrStackSize(+1); // the dup trick above confuses the stack counter
  712. // codeStream.new_(world.makeTypeBinding(AjcMemberMaker.NO_ASPECT_BOUND_EXCEPTION));
  713. // codeStream.dup();
  714. // codeStream.ldc(typeX.getNameAsIdentifier());
  715. // codeStream.getstatic(initFailureField);
  716. // codeStream.invokespecial(world.makeMethodBindingForCall(
  717. // AjcMemberMaker.noAspectBoundExceptionInitWithCause()
  718. // ));
  719. // codeStream.athrow();
  720. // // body ends here
  721. // The stuff below generates code that looks like this:
  722. /*
  723. * if (ajc$perSingletonInstance == null) throw new NoAspectBoundException("A", ajc$initFailureCause); else return
  724. * ajc$perSingletonInstance;
  725. */
  726. // body starts here (see end of each line for what it is doing!)
  727. FieldBinding fb = world.makeFieldBinding(AjcMemberMaker.perSingletonField(typeX));
  728. codeStream.fieldAccess(Opcodes.OPC_getstatic, fb, null);
  729. BranchLabel isNonNull = new BranchLabel(codeStream);
  730. codeStream.ifnonnull(isNonNull); // IFNONNULL
  731. codeStream.new_(world.makeTypeBinding(AjcMemberMaker.NO_ASPECT_BOUND_EXCEPTION)); // NEW
  732. codeStream.dup(); // DUP
  733. codeStream.ldc(typeX.getNameAsIdentifier()); // LDC
  734. codeStream.fieldAccess(Opcodes.OPC_getstatic,initFailureField,null);
  735. codeStream.invoke(Opcodes.OPC_invokespecial,world.makeMethodBindingForCall(AjcMemberMaker.noAspectBoundExceptionInitWithCause()),null); // INVOKESPECIAL
  736. codeStream.athrow(); // ATHROW
  737. isNonNull.place();
  738. codeStream.fieldAccess(Opcodes.OPC_getstatic,fb,null);
  739. codeStream.areturn(); // ARETURN
  740. // body ends here
  741. }
  742. });
  743. }
  744. private void generatePerSingletonHasAspectMethod(ClassFile classFile) {
  745. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  746. generateMethod(classFile, hasAspectMethod, new BodyGenerator() {
  747. public void generate(CodeStream codeStream) {
  748. // body starts here
  749. codeStream.fieldAccess(Opcodes.OPC_getstatic,world.makeFieldBinding(AjcMemberMaker.perSingletonField(typeX)),null);
  750. BranchLabel isNull = new BranchLabel(codeStream);
  751. codeStream.ifnull(isNull);
  752. codeStream.iconst_1();
  753. codeStream.ireturn();
  754. isNull.place();
  755. codeStream.iconst_0();
  756. codeStream.ireturn();
  757. // body ends here
  758. }
  759. });
  760. }
  761. private void generatePerSingletonAjcClinitMethod(ClassFile classFile) {
  762. final EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(this.scope);
  763. generateMethod(classFile, world.makeMethodBinding(AjcMemberMaker.ajcPostClinitMethod(world.fromBinding(binding))),
  764. new BodyGenerator() {
  765. public void generate(CodeStream codeStream) {
  766. // body starts here
  767. codeStream.new_(binding);
  768. codeStream.dup();
  769. codeStream.invoke(Opcodes.OPC_invokespecial,new MethodBinding(0, "<init>".toCharArray(), TypeBinding.VOID, new TypeBinding[0],
  770. new ReferenceBinding[0], binding),null);
  771. codeStream.fieldAccess(Opcodes.OPC_putstatic, world.makeFieldBinding(AjcMemberMaker.perSingletonField(typeX)), null);
  772. codeStream.return_();
  773. // body ends here
  774. }
  775. });
  776. }
  777. private void generateSuperAccessMethod(ClassFile classFile, final MethodBinding accessMethod, final ResolvedMember method) {
  778. generateMethod(classFile, accessMethod, new BodyGenerator() {
  779. public void generate(CodeStream codeStream) {
  780. // body starts here
  781. codeStream.aload_0();
  782. AstUtil.generateParameterLoads(accessMethod.parameters, codeStream, 1);
  783. codeStream.invoke(Opcodes.OPC_invokespecial,factory.makeMethodBinding(method),null);
  784. AstUtil.generateReturn(accessMethod.returnType, codeStream);
  785. // body ends here
  786. }
  787. });
  788. }
  789. private void generateInlineAccessMethod(ClassFile classFile, final Binding binding, final ResolvedMember member) {
  790. if (binding instanceof InlineAccessFieldBinding) {
  791. generateInlineAccessors(classFile, (InlineAccessFieldBinding) binding, member);
  792. } else {
  793. generateInlineAccessMethod(classFile, (MethodBinding) binding, member);
  794. }
  795. }
  796. private void generateInlineAccessors(ClassFile classFile, final InlineAccessFieldBinding accessField, final ResolvedMember field) {
  797. final FieldBinding fieldBinding = factory.makeFieldBinding(field);
  798. generateMethod(classFile, accessField.reader, makeEffectiveSignatureAttribute(field, Shadow.FieldGet, false),
  799. new BodyGenerator() {
  800. public void generate(CodeStream codeStream) {
  801. // body starts here
  802. if (Modifier.isStatic(field.getModifiers())) {
  803. codeStream.fieldAccess(Opcodes.OPC_getstatic,fieldBinding,null);
  804. } else {
  805. codeStream.aload_0();
  806. codeStream.fieldAccess(Opcodes.OPC_getfield,fieldBinding,null);
  807. }
  808. AstUtil.generateReturn(accessField.reader.returnType, codeStream);
  809. // body ends here
  810. }
  811. });
  812. generateMethod(classFile, accessField.writer, makeEffectiveSignatureAttribute(field, Shadow.FieldSet, false),
  813. new BodyGenerator() {
  814. public void generate(CodeStream codeStream) {
  815. // body starts here
  816. if (Modifier.isStatic(field.getModifiers())) {
  817. codeStream.load(fieldBinding.type, 0);
  818. codeStream.fieldAccess(Opcodes.OPC_putstatic,fieldBinding,null);
  819. } else {
  820. codeStream.aload_0();
  821. codeStream.load(fieldBinding.type, 1);
  822. codeStream.fieldAccess(Opcodes.OPC_putfield,fieldBinding,null);
  823. }
  824. codeStream.return_();
  825. // body ends here
  826. }
  827. });
  828. }
  829. private void generateInlineAccessMethod(ClassFile classFile, final MethodBinding accessMethod, final ResolvedMember method) {
  830. generateMethod(classFile, accessMethod, makeEffectiveSignatureAttribute(method, Shadow.MethodCall, false),
  831. new BodyGenerator() {
  832. public void generate(CodeStream codeStream) {
  833. // body starts here
  834. AstUtil.generateParameterLoads(accessMethod.parameters, codeStream);
  835. if (Modifier.isStatic(method.getModifiers())) {
  836. codeStream.invoke(Opcodes.OPC_invokestatic,factory.makeMethodBinding(method),null);
  837. } else {
  838. codeStream.invoke(Opcodes.OPC_invokevirtual,factory.makeMethodBinding(method),null);
  839. }
  840. AstUtil.generateReturn(accessMethod.returnType, codeStream);
  841. // body ends here
  842. }
  843. });
  844. }
  845. private PerClause.Kind lookupPerClauseKind(ReferenceBinding binding) {
  846. PerClause perClause;
  847. if (binding instanceof BinaryTypeBinding) {
  848. ResolvedType superTypeX = factory.fromEclipse(binding);
  849. perClause = superTypeX.getPerClause();
  850. } else if (binding instanceof SourceTypeBinding) {
  851. SourceTypeBinding sourceSc = (SourceTypeBinding) binding;
  852. if (sourceSc.scope.referenceContext instanceof AspectDeclaration) {
  853. perClause = ((AspectDeclaration) sourceSc.scope.referenceContext).perClause;
  854. } else {
  855. return null;
  856. }
  857. } else if (binding instanceof ParameterizedTypeBinding) {
  858. ParameterizedTypeBinding pBinding = (ParameterizedTypeBinding) binding;
  859. if (pBinding.type instanceof SourceTypeBinding) {
  860. SourceTypeBinding sourceSc = (SourceTypeBinding) pBinding.type;
  861. if (sourceSc.scope != null && sourceSc.scope.referenceContext instanceof AspectDeclaration) {
  862. perClause = ((AspectDeclaration) sourceSc.scope.referenceContext).perClause;
  863. } else {
  864. return null;
  865. }
  866. } else {
  867. perClause = null;
  868. }
  869. } else {
  870. // XXX need to handle this too
  871. return null;
  872. }
  873. if (perClause == null) {
  874. return lookupPerClauseKind(binding.superclass());
  875. } else {
  876. return perClause.getKind();
  877. }
  878. }
  879. private void buildPerClause(ClassScope scope) {
  880. EclipseFactory world = EclipseFactory.fromScopeLookupEnvironment(scope);
  881. if (perClause == null) {
  882. PerClause.Kind kind = lookupPerClauseKind(binding.superclass);
  883. if (kind == null) {
  884. perClause = new PerSingleton();
  885. } else {
  886. perClause = new PerFromSuper(kind);
  887. }
  888. }
  889. // aspectAttribute = new AjAttribute.Aspect(perClause);
  890. if (ignoreFurtherInvestigation) {
  891. return; // ???
  892. }
  893. if (!isAbstract()) {
  894. if (perClause.getKind() == PerClause.SINGLETON) {
  895. aspectOfMethod = AjcMemberMaker.perSingletonAspectOfMethod(typeX);
  896. hasAspectMethod = AjcMemberMaker.perSingletonHasAspectMethod(typeX);
  897. } else if (perClause.getKind() == PerClause.PERCFLOW) {
  898. aspectOfMethod = AjcMemberMaker.perCflowAspectOfMethod(typeX);
  899. hasAspectMethod = AjcMemberMaker.perCflowHasAspectMethod(typeX);
  900. } else if (perClause.getKind() == PerClause.PEROBJECT) {
  901. aspectOfMethod = AjcMemberMaker.perObjectAspectOfMethod(typeX);
  902. hasAspectMethod = AjcMemberMaker.perObjectHasAspectMethod(typeX);
  903. } else if (perClause.getKind() == PerClause.PERTYPEWITHIN) {
  904. // PTWIMPL Use these variants of aspectOf()/hasAspect()
  905. aspectOfMethod = AjcMemberMaker.perTypeWithinAspectOfMethod(typeX, world.getWorld().isInJava5Mode());
  906. hasAspectMethod = AjcMemberMaker.perTypeWithinHasAspectMethod(typeX, world.getWorld().isInJava5Mode());
  907. ptwGetWithinTypeNameMethod = AjcMemberMaker.perTypeWithinGetWithinTypeNameMethod(typeX, world.getWorld()
  908. .isInJava5Mode());
  909. binding.addMethod(world.makeMethodBinding(ptwGetWithinTypeNameMethod));
  910. } else {
  911. throw new RuntimeException("bad per clause: " + perClause);
  912. }
  913. binding.addMethod(world.makeMethodBinding(aspectOfMethod));
  914. binding.addMethod(world.makeMethodBinding(hasAspectMethod));
  915. }
  916. resolvePerClause(); // XXX might be too soon for some error checking
  917. }
  918. private PerClause resolvePerClause() {
  919. EclipseScope iscope = new EclipseScope(new FormalBinding[0], scope);
  920. perClause.resolve(iscope);
  921. return perClause;
  922. }
  923. public void processIntertypeMemberTypes(ClassScope classScope) {
  924. factory = EclipseFactory.fromScopeLookupEnvironment(scope);
  925. if (memberTypes != null) {
  926. for (int i = 0; i < memberTypes.length; i++) {
  927. if (memberTypes[i] instanceof IntertypeMemberClassDeclaration) {
  928. EclipseTypeMunger m = ((IntertypeMemberClassDeclaration) memberTypes[i]).build(classScope);
  929. if (m != null) {
  930. mungeNewInnerClass(m, factory);
  931. concreteName.typeMungers.add(m);
  932. }
  933. }
  934. }
  935. }
  936. }
  937. public void buildInterTypeAndPerClause(ClassScope classScope) {
  938. factory = EclipseFactory.fromScopeLookupEnvironment(scope);
  939. if (isPrivileged) {
  940. binding.privilegedHandler = new PrivilegedHandler(this);
  941. }
  942. checkSpec(classScope);
  943. if (ignoreFurtherInvestigation) {
  944. return;
  945. }
  946. buildPerClause(scope);
  947. if (methods != null) {
  948. for (int i = 0; i < methods.length; i++) {
  949. if (methods[i] instanceof InterTypeDeclaration) {
  950. EclipseTypeMunger m = ((InterTypeDeclaration) methods[i]).build(classScope);
  951. if (m != null) {
  952. concreteName.typeMungers.add(m);
  953. }
  954. } else if (methods[i] instanceof DeclareDeclaration) {
  955. Declare d = ((DeclareDeclaration) methods[i]).build(classScope);
  956. if (d != null) {
  957. concreteName.declares.add(d);
  958. }
  959. }
  960. }
  961. }
  962. concreteName.getDeclaredPointcuts();
  963. }
  964. // public String toString(int tab) {
  965. // return tabString(tab) + toStringHeader() + toStringBody(tab);
  966. // }
  967. //
  968. // public String toStringBody(int tab) {
  969. //
  970. // String s = " {"; //$NON-NLS-1$
  971. //
  972. //
  973. // if (memberTypes != null) {
  974. // for (int i = 0; i < memberTypes.length; i++) {
  975. // if (memberTypes[i] != null) {
  976. // s += "\n" + memberTypes[i].toString(tab + 1); //$NON-NLS-1$
  977. // }
  978. // }
  979. // }
  980. // if (fields != null) {
  981. // for (int fieldI = 0; fieldI < fields.length; fieldI++) {
  982. // if (fields[fieldI] != null) {
  983. // s += "\n" + fields[fieldI].toString(tab + 1); //$NON-NLS-1$
  984. // if (fields[fieldI].isField())
  985. // s += ";"; //$NON-NLS-1$
  986. // }
  987. // }
  988. // }
  989. // if (methods != null) {
  990. // for (int i = 0; i < methods.length; i++) {
  991. // if (methods[i] != null) {
  992. // s += "\n" + methods[i].toString(tab + 1); //$NON-NLS-1$
  993. // }
  994. // }
  995. // }
  996. // s += "\n" + tabString(tab) + "}"; //$NON-NLS-2$ //$NON-NLS-1$
  997. // return s;
  998. // }
  999. // very similar to code in EclipseTypeMunger
  1000. private void mungeNewInnerClass(EclipseTypeMunger m, EclipseFactory world) {
  1001. NewMemberClassTypeMunger munger = (NewMemberClassTypeMunger) m.getMunger();
  1002. // private boolean mungeNewInnerClass(SourceTypeBinding sourceType, ResolvedType onType, NewMemberClassTypeMunger munger,
  1003. // boolean isExactTargetType) {
  1004. SourceTypeBinding aspectTypeBinding = (SourceTypeBinding) world.makeTypeBinding(m.getAspectType());
  1005. char[] mungerMemberTypeName = ("$" + munger.getMemberTypeName()).toCharArray();
  1006. ReferenceBinding innerTypeBinding = null;
  1007. for (ReferenceBinding innerType : aspectTypeBinding.memberTypes) {
  1008. char[] compounded = CharOperation.concatWith(innerType.compoundName, '.');
  1009. if (org.aspectj.org.eclipse.jdt.core.compiler.CharOperation.endsWith(compounded, mungerMemberTypeName)) {
  1010. innerTypeBinding = innerType;
  1011. break;
  1012. }
  1013. }
  1014. // may be unresolved if the aspect type binding was a BinaryTypeBinding
  1015. if (innerTypeBinding instanceof UnresolvedReferenceBinding) {
  1016. innerTypeBinding = (ReferenceBinding)BinaryTypeBinding.resolveType(innerTypeBinding, world.getLookupEnvironment(), true);
  1017. }
  1018. if (innerTypeBinding == null) {
  1019. throw new IllegalStateException("Could not find inner type binding for '" + munger.getMemberTypeName() + "'");
  1020. }
  1021. // TODO adjust modifier?
  1022. // TODO deal with itd of it onto an interface
  1023. SourceTypeBinding targetSourceTypeBinding = (SourceTypeBinding) world.makeTypeBinding(munger.getTargetType());
  1024. // if it is a binary type binding it is likely to be something we ITD'd on before
  1025. // TODO should probably avoid putting it onto BTBs at all (since already there)
  1026. if (!(targetSourceTypeBinding instanceof BinaryTypeBinding)) {
  1027. ReferenceBinding[] existingMemberTypes = targetSourceTypeBinding.memberTypes();
  1028. for (int i = 0; i < existingMemberTypes.length; i++) {
  1029. char[] compounded = CharOperation.concatWith(existingMemberTypes[i].compoundName, '.');
  1030. if (CharOperation.endsWith(compounded, mungerMemberTypeName)) {
  1031. scope.problemReporter().signalError(sourceStart(), sourceEnd(),
  1032. "target type already declares a member type with the name '" + munger.getMemberTypeName() + "'");
  1033. return;
  1034. }
  1035. }
  1036. }
  1037. /*
  1038. * char[][] className = CharOperation.deepCopy(targetSourceTypeBinding.compoundName); className[className.length - 1] =
  1039. * CharOperation.concat(className[className.length - 1], munger.getMemberTypeName() .toCharArray(), '$'); //
  1040. * ReferenceBinding existingType = packageBinding.getType0(className[className.length - 1]); innerTypeBinding.compoundName =
  1041. * className; innerTypeBinding.fPackage = targetSourceTypeBinding.fPackage;
  1042. */
  1043. findOrCreateInterTypeMemberClassFinder(targetSourceTypeBinding).addInterTypeMemberType(innerTypeBinding);
  1044. }
  1045. private IntertypeMemberTypeFinder findOrCreateInterTypeMemberClassFinder(SourceTypeBinding sourceType) {
  1046. IntertypeMemberTypeFinder finder = (IntertypeMemberTypeFinder) sourceType.typeFinder;
  1047. if (finder == null) {
  1048. finder = new IntertypeMemberTypeFinder();
  1049. sourceType.typeFinder = finder;
  1050. finder.targetTypeBinding = sourceType;
  1051. sourceType.tagBits &= ~TagBits.HasNoMemberTypes; // ensure it thinks it has one
  1052. }
  1053. return finder;
  1054. }
  1055. public StringBuffer printHeader(int indent, StringBuffer output) {
  1056. // since all aspects are made public we want to print the
  1057. // modifiers that were supplied in the original source code
  1058. printModifiers(this.declaredModifiers, output);
  1059. output.append("aspect ");
  1060. output.append(name);
  1061. if (superclass != null) {
  1062. output.append(" extends "); //$NON-NLS-1$
  1063. superclass.print(0, output);
  1064. }
  1065. if (superInterfaces != null && superInterfaces.length > 0) {
  1066. output.append((TypeDeclaration.kind(this.modifiers) == TypeDeclaration.INTERFACE_DECL) ? " extends " : " implements ");//$NON-NLS-2$ //$NON-NLS-1$
  1067. for (int i = 0; i < superInterfaces.length; i++) {
  1068. if (i > 0) {
  1069. output.append(", "); //$NON-NLS-1$
  1070. }
  1071. superInterfaces[i].print(0, output);
  1072. }
  1073. }
  1074. return output;
  1075. // XXX we should append the per-clause
  1076. }
  1077. /**
  1078. * All aspects are made public after type checking etc. and before generating code (so that the advice can be called!). This
  1079. * method returns the modifiers as specified in the original source code declaration so that the structure model sees the right
  1080. * thing.
  1081. */
  1082. public int getDeclaredModifiers() {
  1083. return declaredModifiers;
  1084. }
  1085. public char[] getLocalTypeNameSuffix() {
  1086. return name;
  1087. }
  1088. }