List of usage examples for org.eclipse.jdt.internal.compiler.classfmt ClassFileConstants JDK1_4
long JDK1_4
To view the source code for org.eclipse.jdt.internal.compiler.classfmt ClassFileConstants JDK1_4.
Click Source Link
From source file:ch.uzh.ifi.seal.changedistiller.ast.java.JavaASTHelper.java
License:Apache License
@Inject
JavaASTHelper(@Assisted File file, @Assisted String javaVersion, JavaASTNodeTypeConverter astHelper,
JavaDeclarationConverter declarationConverter, JavaMethodBodyConverter bodyConverter) {
long versionNumber;
switch (javaVersion) {
case "1.1":
versionNumber = ClassFileConstants.JDK1_1;
break;//from w ww .jav a 2 s.co m
case "1.2":
versionNumber = ClassFileConstants.JDK1_2;
break;
case "1.3":
versionNumber = ClassFileConstants.JDK1_3;
break;
case "1.4":
versionNumber = ClassFileConstants.JDK1_4;
break;
case "1.5":
versionNumber = ClassFileConstants.JDK1_5;
break;
case "1.6":
versionNumber = ClassFileConstants.JDK1_6;
break;
case "1.7":
versionNumber = ClassFileConstants.JDK1_7;
break;
default:
versionNumber = ClassFileConstants.JDK1_7;
}
fCompilation = JavaCompilationUtils.compile(file, versionNumber);
prepareComments();
fASTHelper = astHelper;
fDeclarationConverter = declarationConverter;
fBodyConverter = bodyConverter;
}
From source file:org.eclipse.jdt.internal.compiler.lookup.Scope.java
License:Open Source License
protected MethodBinding findDefaultAbstractMethod(ReferenceBinding receiverType, char[] selector, TypeBinding[] argumentTypes, InvocationSite invocationSite, ReferenceBinding classHierarchyStart, ObjectVector found, MethodBinding concreteMatch) { int startFoundSize = found.size; ReferenceBinding currentType = classHierarchyStart; while (currentType != null) { findMethodInSuperInterfaces(currentType, selector, found, invocationSite); currentType = currentType.superclass(); }//from w w w . jav a 2s .c o m MethodBinding[] candidates = null; int candidatesCount = 0; MethodBinding problemMethod = null; int foundSize = found.size; if (foundSize > startFoundSize) { // argument type compatibility check for (int i = startFoundSize; i < foundSize; i++) { MethodBinding methodBinding = (MethodBinding) found.elementAt(i); MethodBinding compatibleMethod = computeCompatibleMethod(methodBinding, argumentTypes, invocationSite); if (compatibleMethod != null) { if (compatibleMethod.isValidBinding()) { if (concreteMatch != null && environment().methodVerifier() .areMethodsCompatible(concreteMatch, compatibleMethod)) continue; // can skip this method since concreteMatch overrides it if (candidatesCount == 0) { candidates = new MethodBinding[foundSize - startFoundSize + 1]; if (concreteMatch != null) candidates[candidatesCount++] = concreteMatch; } candidates[candidatesCount++] = compatibleMethod; } else if (problemMethod == null) { problemMethod = compatibleMethod; } } } } if (candidatesCount < 2) { if (concreteMatch == null) { if (candidatesCount == 0) return problemMethod; // can be null concreteMatch = candidates[0]; } compilationUnitScope().recordTypeReferences(concreteMatch.thrownExceptions); return concreteMatch; } // no need to check for visibility - interface methods are public if (compilerOptions().complianceLevel >= ClassFileConstants.JDK1_4) return mostSpecificMethodBinding(candidates, candidatesCount, argumentTypes, invocationSite, receiverType); return mostSpecificInterfaceMethodBinding(candidates, candidatesCount, invocationSite); }
From source file:org.eclipse.jdt.internal.compiler.lookup.Scope.java
License:Open Source License
public MethodBinding findMethod(ReferenceBinding receiverType, char[] selector, TypeBinding[] argumentTypes, InvocationSite invocationSite, boolean inStaticContext) { ReferenceBinding currentType = receiverType; boolean receiverTypeIsInterface = receiverType.isInterface(); ObjectVector found = new ObjectVector(3); CompilationUnitScope unitScope = compilationUnitScope(); unitScope.recordTypeReferences(argumentTypes); if (receiverTypeIsInterface) { unitScope.recordTypeReference(receiverType); MethodBinding[] receiverMethods = receiverType.getMethods(selector, argumentTypes.length); if (receiverMethods.length > 0) found.addAll(receiverMethods); findMethodInSuperInterfaces(receiverType, selector, found, invocationSite); currentType = getJavaLangObject(); }/*w ww . j a va 2 s . c om*/ // superclass lookup long complianceLevel = compilerOptions().complianceLevel; boolean isCompliant14 = complianceLevel >= ClassFileConstants.JDK1_4; boolean isCompliant15 = complianceLevel >= ClassFileConstants.JDK1_5; ReferenceBinding classHierarchyStart = currentType; MethodVerifier verifier = environment().methodVerifier(); while (currentType != null) { unitScope.recordTypeReference(currentType); currentType = (ReferenceBinding) currentType.capture(this, invocationSite == null ? 0 : invocationSite.sourceEnd()); MethodBinding[] currentMethods = currentType.getMethods(selector, argumentTypes.length); int currentLength = currentMethods.length; if (currentLength > 0) { if (isCompliant14 && (receiverTypeIsInterface || found.size > 0)) { nextMethod: for (int i = 0, l = currentLength; i < l; i++) { // currentLength can be modified inside the loop MethodBinding currentMethod = currentMethods[i]; if (currentMethod == null) continue nextMethod; if (receiverTypeIsInterface && !currentMethod.isPublic()) { // only public methods from Object are visible to interface receiverTypes currentLength--; currentMethods[i] = null; continue nextMethod; } // if 1.4 compliant, must filter out redundant protected methods from superclasses // protected method need to be checked only - default access is already dealt with in #canBeSeen implementation // when checking that p.C -> q.B -> p.A cannot see default access members from A through B. // if ((currentMethod.modifiers & AccProtected) == 0) continue nextMethod; // BUT we can also ignore any overridden method since we already know the better match (fixes 80028) for (int j = 0, max = found.size; j < max; j++) { MethodBinding matchingMethod = (MethodBinding) found.elementAt(j); MethodBinding matchingOriginal = matchingMethod.original(); MethodBinding currentOriginal = matchingOriginal .findOriginalInheritedMethod(currentMethod); if (currentOriginal != null && verifier.isParameterSubsignature(matchingOriginal, currentOriginal)) { if (isCompliant15) { if (matchingMethod.isBridge() && !currentMethod.isBridge()) continue nextMethod; // keep inherited methods to find concrete method over a bridge method } currentLength--; currentMethods[i] = null; continue nextMethod; } } } } if (currentLength > 0) { // append currentMethods, filtering out null entries if (currentMethods.length == currentLength) { found.addAll(currentMethods); } else { for (int i = 0, max = currentMethods.length; i < max; i++) { MethodBinding currentMethod = currentMethods[i]; if (currentMethod != null) found.add(currentMethod); } } } } currentType = currentType.superclass(); } // if found several candidates, then eliminate those not matching argument types int foundSize = found.size; MethodBinding[] candidates = null; int candidatesCount = 0; MethodBinding problemMethod = null; boolean searchForDefaultAbstractMethod = isCompliant14 && !receiverTypeIsInterface && (receiverType.isAbstract() || receiverType.isTypeVariable()); if (foundSize > 0) { // argument type compatibility check for (int i = 0; i < foundSize; i++) { MethodBinding methodBinding = (MethodBinding) found.elementAt(i); MethodBinding compatibleMethod = computeCompatibleMethod(methodBinding, argumentTypes, invocationSite); if (compatibleMethod != null) { if (compatibleMethod.isValidBinding()) { if (foundSize == 1 && compatibleMethod.canBeSeenBy(receiverType, invocationSite, this)) { // return the single visible match now if (searchForDefaultAbstractMethod) return findDefaultAbstractMethod(receiverType, selector, argumentTypes, invocationSite, classHierarchyStart, found, compatibleMethod); unitScope.recordTypeReferences(compatibleMethod.thrownExceptions); return compatibleMethod; } if (candidatesCount == 0) candidates = new MethodBinding[foundSize]; candidates[candidatesCount++] = compatibleMethod; } else if (problemMethod == null) { problemMethod = compatibleMethod; } } } } // no match was found if (candidatesCount == 0) { if (problemMethod != null) { switch (problemMethod.problemId()) { case ProblemReasons.TypeArgumentsForRawGenericMethod: case ProblemReasons.TypeParameterArityMismatch: return problemMethod; } } // abstract classes may get a match in interfaces; for non abstract // classes, reduces secondary errors since missing interface method // error is already reported MethodBinding interfaceMethod = findDefaultAbstractMethod(receiverType, selector, argumentTypes, invocationSite, classHierarchyStart, found, null); if (interfaceMethod != null) return interfaceMethod; if (found.size == 0) return null; if (problemMethod != null) return problemMethod; // still no match; try to find a close match when the parameter // order is wrong or missing some parameters // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=69471 // bad guesses are foo(), when argument types have been supplied // and foo(X, Y), when the argument types are (int, float, Y) // so answer the method with the most argType matches and least parameter type mismatches int bestArgMatches = -1; MethodBinding bestGuess = (MethodBinding) found.elementAt(0); // if no good match so just use the first one found int argLength = argumentTypes.length; foundSize = found.size; nextMethod: for (int i = 0; i < foundSize; i++) { MethodBinding methodBinding = (MethodBinding) found.elementAt(i); TypeBinding[] params = methodBinding.parameters; int paramLength = params.length; int argMatches = 0; next: for (int a = 0; a < argLength; a++) { TypeBinding arg = argumentTypes[a]; for (int p = a == 0 ? 0 : a - 1; p < paramLength && p < a + 1; p++) { // look one slot before & after to see if the type matches if (params[p] == arg) { argMatches++; continue next; } } } if (argMatches < bestArgMatches) continue nextMethod; if (argMatches == bestArgMatches) { int diff1 = paramLength < argLength ? 2 * (argLength - paramLength) : paramLength - argLength; int bestLength = bestGuess.parameters.length; int diff2 = bestLength < argLength ? 2 * (argLength - bestLength) : bestLength - argLength; if (diff1 >= diff2) continue nextMethod; } bestArgMatches = argMatches; bestGuess = methodBinding; } return new ProblemMethodBinding(bestGuess, bestGuess.selector, argumentTypes, ProblemReasons.NotFound); } // tiebreak using visibility check int visiblesCount = 0; if (receiverTypeIsInterface) { if (candidatesCount == 1) { unitScope.recordTypeReferences(candidates[0].thrownExceptions); return candidates[0]; } visiblesCount = candidatesCount; } else { for (int i = 0; i < candidatesCount; i++) { MethodBinding methodBinding = candidates[i]; if (methodBinding.canBeSeenBy(receiverType, invocationSite, this)) { if (visiblesCount != i) { candidates[i] = null; candidates[visiblesCount] = methodBinding; } visiblesCount++; } } switch (visiblesCount) { case 0: MethodBinding interfaceMethod = findDefaultAbstractMethod(receiverType, selector, argumentTypes, invocationSite, classHierarchyStart, found, null); if (interfaceMethod != null) return interfaceMethod; return new ProblemMethodBinding(candidates[0], candidates[0].selector, candidates[0].parameters, ProblemReasons.NotVisible); case 1: if (searchForDefaultAbstractMethod) return findDefaultAbstractMethod(receiverType, selector, argumentTypes, invocationSite, classHierarchyStart, found, candidates[0]); unitScope.recordTypeReferences(candidates[0].thrownExceptions); return candidates[0]; default: break; } } if (complianceLevel <= ClassFileConstants.JDK1_3) { ReferenceBinding declaringClass = candidates[0].declaringClass; return !declaringClass.isInterface() ? mostSpecificClassMethodBinding(candidates, visiblesCount, invocationSite) : mostSpecificInterfaceMethodBinding(candidates, visiblesCount, invocationSite); } // check for duplicate parameterized methods if (compilerOptions().sourceLevel >= ClassFileConstants.JDK1_5) { for (int i = 0; i < visiblesCount; i++) { MethodBinding candidate = candidates[i]; if (candidate instanceof ParameterizedGenericMethodBinding) candidate = ((ParameterizedGenericMethodBinding) candidate).originalMethod; if (candidate.hasSubstitutedParameters()) { for (int j = i + 1; j < visiblesCount; j++) { MethodBinding otherCandidate = candidates[j]; if (otherCandidate.hasSubstitutedParameters()) { if (otherCandidate == candidate || (candidate.declaringClass == otherCandidate.declaringClass && candidate.areParametersEqual(otherCandidate))) { return new ProblemMethodBinding(candidates[i], candidates[i].selector, candidates[i].parameters, ProblemReasons.Ambiguous); } } } } } } if (inStaticContext) { MethodBinding[] staticCandidates = new MethodBinding[visiblesCount]; int staticCount = 0; for (int i = 0; i < visiblesCount; i++) if (candidates[i].isStatic()) staticCandidates[staticCount++] = candidates[i]; if (staticCount == 1) return staticCandidates[0]; if (staticCount > 1) return mostSpecificMethodBinding(staticCandidates, staticCount, argumentTypes, invocationSite, receiverType); } MethodBinding mostSpecificMethod = mostSpecificMethodBinding(candidates, visiblesCount, argumentTypes, invocationSite, receiverType); if (searchForDefaultAbstractMethod) { // search interfaces for a better match if (mostSpecificMethod.isValidBinding()) // see if there is a better match in the interfaces - see AutoBoxingTest 99, LookupTest#81 return findDefaultAbstractMethod(receiverType, selector, argumentTypes, invocationSite, classHierarchyStart, found, mostSpecificMethod); // see if there is a match in the interfaces - see LookupTest#84 MethodBinding interfaceMethod = findDefaultAbstractMethod(receiverType, selector, argumentTypes, invocationSite, classHierarchyStart, found, null); if (interfaceMethod != null && interfaceMethod.isValidBinding() /* else return the same error as before */) return interfaceMethod; } return mostSpecificMethod; }
From source file:org.eclipse.jdt.internal.compiler.lookup.Scope.java
License:Open Source License
public Binding getBinding(char[] name, int mask, InvocationSite invocationSite, boolean needResolve) { CompilationUnitScope unitScope = compilationUnitScope(); LookupEnvironment env = unitScope.environment; try {/*from w w w . j a v a 2 s .c o m*/ env.missingClassFileLocation = invocationSite; Binding binding = null; FieldBinding problemField = null; if ((mask & Binding.VARIABLE) != 0) { boolean insideStaticContext = false; boolean insideConstructorCall = false; boolean insideTypeAnnotation = false; FieldBinding foundField = null; // can be a problem field which is answered if a valid field is not found ProblemFieldBinding foundInsideProblem = null; // inside Constructor call or inside static context Scope scope = this; int depth = 0; int foundDepth = 0; ReferenceBinding foundActualReceiverType = null; done: while (true) { // done when a COMPILATION_UNIT_SCOPE is found switch (scope.kind) { case METHOD_SCOPE: MethodScope methodScope = (MethodScope) scope; insideStaticContext |= methodScope.isStatic; insideConstructorCall |= methodScope.isConstructorCall; insideTypeAnnotation = methodScope.insideTypeAnnotation; //$FALL-THROUGH$ could duplicate the code below to save a cast - questionable optimization case BLOCK_SCOPE: LocalVariableBinding variableBinding = scope.findVariable(name); // looks in this scope only if (variableBinding != null) { if (foundField != null && foundField.isValidBinding()) return new ProblemFieldBinding(foundField, // closest match foundField.declaringClass, name, ProblemReasons.InheritedNameHidesEnclosingName); if (depth > 0) invocationSite.setDepth(depth); return variableBinding; } break; case CLASS_SCOPE: ClassScope classScope = (ClassScope) scope; ReferenceBinding receiverType = classScope.enclosingReceiverType(); if (!insideTypeAnnotation) { FieldBinding fieldBinding = classScope.findField(receiverType, name, invocationSite, needResolve); // Use next line instead if willing to enable protected access accross inner types // FieldBinding fieldBinding = findField(enclosingType, name, invocationSite); if (fieldBinding != null) { // skip it if we did not find anything if (fieldBinding.problemId() == ProblemReasons.Ambiguous) { if (foundField == null || foundField.problemId() == ProblemReasons.NotVisible) // supercedes any potential InheritedNameHidesEnclosingName problem return fieldBinding; // make the user qualify the field, likely wants the first inherited field (javac generates an ambiguous error instead) return new ProblemFieldBinding(foundField, // closest match foundField.declaringClass, name, ProblemReasons.InheritedNameHidesEnclosingName); } ProblemFieldBinding insideProblem = null; if (fieldBinding.isValidBinding()) { if (!fieldBinding.isStatic()) { if (insideConstructorCall) { insideProblem = new ProblemFieldBinding(fieldBinding, // closest match fieldBinding.declaringClass, name, ProblemReasons.NonStaticReferenceInConstructorInvocation); } else if (insideStaticContext) { insideProblem = new ProblemFieldBinding(fieldBinding, // closest match fieldBinding.declaringClass, name, ProblemReasons.NonStaticReferenceInStaticContext); } } if (receiverType == fieldBinding.declaringClass || compilerOptions().complianceLevel >= ClassFileConstants.JDK1_4) { // found a valid field in the 'immediate' scope (i.e. not inherited) // OR in 1.4 mode (inherited shadows enclosing) if (foundField == null) { if (depth > 0) { invocationSite.setDepth(depth); invocationSite.setActualReceiverType(receiverType); } // return the fieldBinding if it is not declared in a superclass of the scope's binding (that is, inherited) return insideProblem == null ? fieldBinding : insideProblem; } if (foundField.isValidBinding()) // if a valid field was found, complain when another is found in an 'immediate' enclosing type (that is, not inherited) // but only if "valid field" was inherited in the first place. if (foundField.declaringClass != fieldBinding.declaringClass && foundField.declaringClass != foundActualReceiverType) // https://bugs.eclipse.org/bugs/show_bug.cgi?id=316956 // i.e. have we found the same field - do not trust field identity yet return new ProblemFieldBinding(foundField, // closest match foundField.declaringClass, name, ProblemReasons.InheritedNameHidesEnclosingName); } } if (foundField == null || (foundField.problemId() == ProblemReasons.NotVisible && fieldBinding.problemId() != ProblemReasons.NotVisible)) { // only remember the fieldBinding if its the first one found or the previous one was not visible & fieldBinding is... foundDepth = depth; foundActualReceiverType = receiverType; foundInsideProblem = insideProblem; foundField = fieldBinding; } } } insideTypeAnnotation = false; depth++; insideStaticContext |= receiverType.isStatic(); // 1EX5I8Z - accessing outer fields within a constructor call is permitted // in order to do so, we change the flag as we exit from the type, not the method // itself, because the class scope is used to retrieve the fields. MethodScope enclosingMethodScope = scope.methodScope(); insideConstructorCall = enclosingMethodScope == null ? false : enclosingMethodScope.isConstructorCall; break; case COMPILATION_UNIT_SCOPE: break done; } scope = scope.parent; } if (foundInsideProblem != null) return foundInsideProblem; if (foundField != null) { if (foundField.isValidBinding()) { if (foundDepth > 0) { invocationSite.setDepth(foundDepth); invocationSite.setActualReceiverType(foundActualReceiverType); } return foundField; } problemField = foundField; foundField = null; } if (compilerOptions().sourceLevel >= ClassFileConstants.JDK1_5) { // at this point the scope is a compilation unit scope & need to check for imported static fields unitScope.faultInImports(); // ensure static imports are resolved ImportBinding[] imports = unitScope.imports; if (imports != null) { // check single static imports for (int i = 0, length = imports.length; i < length; i++) { ImportBinding importBinding = imports[i]; if (importBinding.isStatic() && !importBinding.onDemand) { if (CharOperation.equals( importBinding.compoundName[importBinding.compoundName.length - 1], name)) { if (unitScope.resolveSingleImport(importBinding, Binding.TYPE | Binding.FIELD | Binding.METHOD) != null && importBinding.resolvedImport instanceof FieldBinding) { foundField = (FieldBinding) importBinding.resolvedImport; ImportReference importReference = importBinding.reference; if (importReference != null && needResolve) { importReference.bits |= ASTNode.Used; } invocationSite.setActualReceiverType(foundField.declaringClass); if (foundField.isValidBinding()) { return foundField; } if (problemField == null) problemField = foundField; } } } } // check on demand imports boolean foundInImport = false; for (int i = 0, length = imports.length; i < length; i++) { ImportBinding importBinding = imports[i]; if (importBinding.isStatic() && importBinding.onDemand) { Binding resolvedImport = importBinding.resolvedImport; if (resolvedImport instanceof ReferenceBinding) { FieldBinding temp = findField((ReferenceBinding) resolvedImport, name, invocationSite, needResolve); if (temp != null) { if (!temp.isValidBinding()) { if (problemField == null) problemField = temp; } else if (temp.isStatic()) { if (foundField == temp) continue; ImportReference importReference = importBinding.reference; if (importReference != null && needResolve) { importReference.bits |= ASTNode.Used; } if (foundInImport) // Answer error binding -- import on demand conflict; name found in two import on demand packages. return new ProblemFieldBinding(foundField, // closest match foundField.declaringClass, name, ProblemReasons.Ambiguous); foundField = temp; foundInImport = true; } } } } } if (foundField != null) { invocationSite.setActualReceiverType(foundField.declaringClass); return foundField; } } } } // We did not find a local or instance variable. if ((mask & Binding.TYPE) != 0) { if ((binding = getBaseType(name)) != null) return binding; binding = getTypeOrPackage(name, (mask & Binding.PACKAGE) == 0 ? Binding.TYPE : Binding.TYPE | Binding.PACKAGE, needResolve); if (binding.isValidBinding() || mask == Binding.TYPE) return binding; // answer the problem type binding if we are only looking for a type } else if ((mask & Binding.PACKAGE) != 0) { unitScope.recordSimpleReference(name); if ((binding = env.getTopLevelPackage(name)) != null) return binding; } if (problemField != null) return problemField; if (binding != null && binding.problemId() != ProblemReasons.NotFound) return binding; // answer the better problem binding return new ProblemBinding(name, enclosingSourceType(), ProblemReasons.NotFound); } catch (AbortCompilation e) { e.updateContext(invocationSite, referenceCompilationUnit().compilationResult); throw e; } finally { env.missingClassFileLocation = null; } }
From source file:org.eclipse.jdt.internal.compiler.lookup.Scope.java
License:Open Source License
public MethodBinding getImplicitMethod(char[] selector, TypeBinding[] argumentTypes, InvocationSite invocationSite) { boolean insideStaticContext = false; boolean insideConstructorCall = false; boolean insideTypeAnnotation = false; MethodBinding foundMethod = null;/*from w w w . j a v a 2s . com*/ MethodBinding foundProblem = null; boolean foundProblemVisible = false; Scope scope = this; int depth = 0; // in 1.4 mode (inherited visible shadows enclosing) CompilerOptions options; boolean inheritedHasPrecedence = (options = compilerOptions()).complianceLevel >= ClassFileConstants.JDK1_4; done: while (true) { // done when a COMPILATION_UNIT_SCOPE is found switch (scope.kind) { case METHOD_SCOPE: MethodScope methodScope = (MethodScope) scope; insideStaticContext |= methodScope.isStatic; insideConstructorCall |= methodScope.isConstructorCall; insideTypeAnnotation = methodScope.insideTypeAnnotation; break; case CLASS_SCOPE: ClassScope classScope = (ClassScope) scope; ReferenceBinding receiverType = classScope.enclosingReceiverType(); if (!insideTypeAnnotation) { // retrieve an exact visible match (if possible) // compilationUnitScope().recordTypeReference(receiverType); not needed since receiver is the source type MethodBinding methodBinding = classScope.findExactMethod(receiverType, selector, argumentTypes, invocationSite); if (methodBinding == null) methodBinding = classScope.findMethod(receiverType, selector, argumentTypes, invocationSite); if (methodBinding != null) { // skip it if we did not find anything if (foundMethod == null) { if (methodBinding.isValidBinding()) { if (!methodBinding.isStatic() && (insideConstructorCall || insideStaticContext)) { if (foundProblem != null && foundProblem.problemId() != ProblemReasons.NotVisible) return foundProblem; // takes precedence return new ProblemMethodBinding(methodBinding, // closest match methodBinding.selector, methodBinding.parameters, insideConstructorCall ? ProblemReasons.NonStaticReferenceInConstructorInvocation : ProblemReasons.NonStaticReferenceInStaticContext); } if (inheritedHasPrecedence || receiverType == methodBinding.declaringClass || (receiverType.getMethods(selector)) != Binding.NO_METHODS) { // found a valid method in the 'immediate' scope (i.e. not inherited) // OR in 1.4 mode (inherited visible shadows enclosing) // OR the receiverType implemented a method with the correct name // return the methodBinding if it is not declared in a superclass of the scope's binding (that is, inherited) if (foundProblemVisible) { return foundProblem; } if (depth > 0) { invocationSite.setDepth(depth); invocationSite.setActualReceiverType(receiverType); } // special treatment for Object.getClass() in 1.5 mode (substitute parameterized return type) if (argumentTypes == Binding.NO_PARAMETERS && CharOperation.equals(selector, TypeConstants.GETCLASS) && methodBinding.returnType.isParameterizedType()/*1.5*/) { return environment().createGetClassMethod(receiverType, methodBinding, this); } return methodBinding; } if (foundProblem == null || foundProblem.problemId() == ProblemReasons.NotVisible) { if (foundProblem != null) foundProblem = null; // only remember the methodBinding if its the first one found // remember that private methods are visible if defined directly by an enclosing class if (depth > 0) { invocationSite.setDepth(depth); invocationSite.setActualReceiverType(receiverType); } foundMethod = methodBinding; } } else { // methodBinding is a problem method if (methodBinding.problemId() != ProblemReasons.NotVisible && methodBinding.problemId() != ProblemReasons.NotFound) return methodBinding; // return the error now if (foundProblem == null) { foundProblem = methodBinding; // hold onto the first not visible/found error and keep the second not found if first is not visible } if (!foundProblemVisible && methodBinding.problemId() == ProblemReasons.NotFound) { MethodBinding closestMatch = ((ProblemMethodBinding) methodBinding).closestMatch; if (closestMatch != null && closestMatch.canBeSeenBy(receiverType, invocationSite, this)) { foundProblem = methodBinding; // hold onto the first not visible/found error and keep the second not found if first is not visible foundProblemVisible = true; } } } } else { // found a valid method so check to see if this is a hiding case if (methodBinding.problemId() == ProblemReasons.Ambiguous || (foundMethod.declaringClass != methodBinding.declaringClass && (receiverType == methodBinding.declaringClass || receiverType.getMethods(selector) != Binding.NO_METHODS))) // ambiguous case -> must qualify the method (javac generates an ambiguous error instead) // otherwise if a method was found, complain when another is found in an 'immediate' enclosing type (that is, not inherited) // NOTE: Unlike fields, a non visible method hides a visible method return new ProblemMethodBinding(methodBinding, // closest match selector, argumentTypes, ProblemReasons.InheritedNameHidesEnclosingName); } } } insideTypeAnnotation = false; depth++; insideStaticContext |= receiverType.isStatic(); // 1EX5I8Z - accessing outer fields within a constructor call is permitted // in order to do so, we change the flag as we exit from the type, not the method // itself, because the class scope is used to retrieve the fields. MethodScope enclosingMethodScope = scope.methodScope(); insideConstructorCall = enclosingMethodScope == null ? false : enclosingMethodScope.isConstructorCall; break; case COMPILATION_UNIT_SCOPE: break done; } scope = scope.parent; } if (insideStaticContext && options.sourceLevel >= ClassFileConstants.JDK1_5) { if (foundProblem != null) { if (foundProblem.declaringClass != null && foundProblem.declaringClass.id == TypeIds.T_JavaLangObject) return foundProblem; // static imports lose to methods from Object if (foundProblem.problemId() == ProblemReasons.NotFound && foundProblemVisible) { return foundProblem; // visible method selectors take precedence } } // at this point the scope is a compilation unit scope & need to check for imported static methods CompilationUnitScope unitScope = (CompilationUnitScope) scope; unitScope.faultInImports(); // field constants can cause static imports to be accessed before they're resolved ImportBinding[] imports = unitScope.imports; if (imports != null) { ObjectVector visible = null; boolean skipOnDemand = false; // set to true when matched static import of method name so stop looking for on demand methods for (int i = 0, length = imports.length; i < length; i++) { ImportBinding importBinding = imports[i]; if (importBinding.isStatic()) { Binding resolvedImport = importBinding.resolvedImport; MethodBinding possible = null; if (importBinding.onDemand) { if (!skipOnDemand && resolvedImport instanceof ReferenceBinding) // answers closest approximation, may not check argumentTypes or visibility possible = findMethod((ReferenceBinding) resolvedImport, selector, argumentTypes, invocationSite, true); } else { if (resolvedImport instanceof MethodBinding) { MethodBinding staticMethod = (MethodBinding) resolvedImport; if (CharOperation.equals(staticMethod.selector, selector)) // answers closest approximation, may not check argumentTypes or visibility possible = findMethod(staticMethod.declaringClass, selector, argumentTypes, invocationSite, true); } else if (resolvedImport instanceof FieldBinding) { // check to see if there are also methods with the same name FieldBinding staticField = (FieldBinding) resolvedImport; if (CharOperation.equals(staticField.name, selector)) { // must find the importRef's type again since the field can be from an inherited type char[][] importName = importBinding.reference.tokens; TypeBinding referencedType = getType(importName, importName.length - 1); if (referencedType != null) // answers closest approximation, may not check argumentTypes or visibility possible = findMethod((ReferenceBinding) referencedType, selector, argumentTypes, invocationSite, true); } } } if (possible != null && possible != foundProblem) { if (!possible.isValidBinding()) { if (foundProblem == null) foundProblem = possible; // answer as error case match } else if (possible.isStatic()) { MethodBinding compatibleMethod = computeCompatibleMethod(possible, argumentTypes, invocationSite); if (compatibleMethod != null) { if (compatibleMethod.isValidBinding()) { if (compatibleMethod.canBeSeenBy(unitScope.fPackage)) { if (visible == null || !visible.contains(compatibleMethod)) { ImportReference importReference = importBinding.reference; if (importReference != null) { importReference.bits |= ASTNode.Used; } if (!skipOnDemand && !importBinding.onDemand) { visible = null; // forget previous matches from on demand imports skipOnDemand = true; } if (visible == null) visible = new ObjectVector(3); visible.add(compatibleMethod); } } else if (foundProblem == null) { foundProblem = new ProblemMethodBinding(compatibleMethod, selector, compatibleMethod.parameters, ProblemReasons.NotVisible); } } else if (foundProblem == null) { foundProblem = compatibleMethod; } } else if (foundProblem == null) { foundProblem = new ProblemMethodBinding(possible, selector, argumentTypes, ProblemReasons.NotFound); } } } } } if (visible != null) { MethodBinding[] temp = new MethodBinding[visible.size]; visible.copyInto(temp); foundMethod = mostSpecificMethodBinding(temp, temp.length, argumentTypes, invocationSite, null); } } } if (foundMethod != null) { invocationSite.setActualReceiverType(foundMethod.declaringClass); return foundMethod; } if (foundProblem != null) return foundProblem; return new ProblemMethodBinding(selector, argumentTypes, ProblemReasons.NotFound); }
From source file:org.eclipse.jdt.internal.compiler.lookup.Scope.java
License:Open Source License
final Binding getTypeOrPackage(char[] name, int mask, boolean needResolve) { Scope scope = this; ReferenceBinding foundType = null;/*from w w w.j a va2 s .c om*/ boolean insideStaticContext = false; boolean insideTypeAnnotation = false; if ((mask & Binding.TYPE) == 0) { Scope next = scope; while ((next = scope.parent) != null) scope = next; } else { boolean inheritedHasPrecedence = compilerOptions().complianceLevel >= ClassFileConstants.JDK1_4; done: while (true) { // done when a COMPILATION_UNIT_SCOPE is found switch (scope.kind) { case METHOD_SCOPE: MethodScope methodScope = (MethodScope) scope; AbstractMethodDeclaration methodDecl = methodScope.referenceMethod(); if (methodDecl != null) { if (methodDecl.binding != null) { TypeVariableBinding typeVariable = methodDecl.binding.getTypeVariable(name); if (typeVariable != null) return typeVariable; } else { // use the methodDecl's typeParameters to handle problem cases when the method binding doesn't exist TypeParameter[] params = methodDecl.typeParameters(); for (int i = params == null ? 0 : params.length; --i >= 0;) if (CharOperation.equals(params[i].name, name)) if (params[i].binding != null && params[i].binding.isValidBinding()) return params[i].binding; } } insideStaticContext |= methodScope.isStatic; insideTypeAnnotation = methodScope.insideTypeAnnotation; //$FALL-THROUGH$ case BLOCK_SCOPE: ReferenceBinding localType = ((BlockScope) scope).findLocalType(name); // looks in this scope only if (localType != null) { if (foundType != null && foundType != localType) return new ProblemReferenceBinding(new char[][] { name }, foundType, ProblemReasons.InheritedNameHidesEnclosingName); return localType; } break; case CLASS_SCOPE: SourceTypeBinding sourceType = ((ClassScope) scope).referenceContext.binding; if (scope == this && (sourceType.tagBits & TagBits.TypeVariablesAreConnected) == 0) { // type variables take precedence over the source type, ex. class X <X> extends X == class X <Y> extends Y // but not when we step out to the enclosing type TypeVariableBinding typeVariable = sourceType.getTypeVariable(name); if (typeVariable != null) return typeVariable; if (CharOperation.equals(name, sourceType.sourceName)) return sourceType; insideStaticContext |= sourceType.isStatic(); break; } // member types take precedence over type variables if (!insideTypeAnnotation) { // 6.5.5.1 - member types have precedence over top-level type in same unit ReferenceBinding memberType = findMemberType(name, sourceType); if (memberType != null) { // skip it if we did not find anything if (memberType.problemId() == ProblemReasons.Ambiguous) { if (foundType == null || foundType.problemId() == ProblemReasons.NotVisible) // supercedes any potential InheritedNameHidesEnclosingName problem return memberType; // make the user qualify the type, likely wants the first inherited type return new ProblemReferenceBinding(new char[][] { name }, foundType, ProblemReasons.InheritedNameHidesEnclosingName); } if (memberType.isValidBinding()) { if (sourceType == memberType.enclosingType() || inheritedHasPrecedence) { if (insideStaticContext && !memberType.isStatic() && sourceType.isGenericType()) return new ProblemReferenceBinding(new char[][] { name }, memberType, ProblemReasons.NonStaticReferenceInStaticContext); // found a valid type in the 'immediate' scope (i.e. not inherited) // OR in 1.4 mode (inherited visible shadows enclosing) if (foundType == null || (inheritedHasPrecedence && foundType.problemId() == ProblemReasons.NotVisible)) return memberType; // if a valid type was found, complain when another is found in an 'immediate' enclosing type (i.e. not inherited) if (foundType.isValidBinding() && foundType != memberType) return new ProblemReferenceBinding(new char[][] { name }, foundType, ProblemReasons.InheritedNameHidesEnclosingName); } } if (foundType == null || (foundType.problemId() == ProblemReasons.NotVisible && memberType.problemId() != ProblemReasons.NotVisible)) // only remember the memberType if its the first one found or the previous one was not visible & memberType is... foundType = memberType; } } TypeVariableBinding typeVariable = sourceType.getTypeVariable(name); if (typeVariable != null) { if (insideStaticContext) // do not consider this type modifiers: access is legite within same type return new ProblemReferenceBinding(new char[][] { name }, typeVariable, ProblemReasons.NonStaticReferenceInStaticContext); return typeVariable; } insideStaticContext |= sourceType.isStatic(); insideTypeAnnotation = false; if (CharOperation.equals(sourceType.sourceName, name)) { if (foundType != null && foundType != sourceType && foundType.problemId() != ProblemReasons.NotVisible) return new ProblemReferenceBinding(new char[][] { name }, foundType, ProblemReasons.InheritedNameHidesEnclosingName); return sourceType; } break; case COMPILATION_UNIT_SCOPE: break done; } scope = scope.parent; } if (foundType != null && foundType.problemId() != ProblemReasons.NotVisible) return foundType; } // at this point the scope is a compilation unit scope CompilationUnitScope unitScope = (CompilationUnitScope) scope; HashtableOfObject typeOrPackageCache = unitScope.typeOrPackageCache; if (typeOrPackageCache != null) { Binding cachedBinding = (Binding) typeOrPackageCache.get(name); if (cachedBinding != null) { // can also include NotFound ProblemReferenceBindings if we already know this name is not found if (cachedBinding instanceof ImportBinding) { // single type import cached in faultInImports(), replace it in the cache with the type ImportReference importReference = ((ImportBinding) cachedBinding).reference; if (importReference != null) { importReference.bits |= ASTNode.Used; } if (cachedBinding instanceof ImportConflictBinding) typeOrPackageCache.put(name, cachedBinding = ((ImportConflictBinding) cachedBinding).conflictingTypeBinding); // already know its visible else typeOrPackageCache.put(name, cachedBinding = ((ImportBinding) cachedBinding).resolvedImport); // already know its visible } if ((mask & Binding.TYPE) != 0) { if (foundType != null && foundType.problemId() != ProblemReasons.NotVisible && cachedBinding.problemId() != ProblemReasons.Ambiguous) return foundType; // problem type from above supercedes NotFound type but not Ambiguous import case if (cachedBinding instanceof ReferenceBinding) return cachedBinding; // cached type found in previous walk below } if ((mask & Binding.PACKAGE) != 0 && cachedBinding instanceof PackageBinding) return cachedBinding; // cached package found in previous walk below } } // ask for the imports + name if ((mask & Binding.TYPE) != 0) { ImportBinding[] imports = unitScope.imports; if (imports != null && typeOrPackageCache == null) { // walk single type imports since faultInImports() has not run yet nextImport: for (int i = 0, length = imports.length; i < length; i++) { ImportBinding importBinding = imports[i]; if (!importBinding.onDemand) { // GROOVY start /* old { if (CharOperation.equals(importBinding.compoundName[importBinding.compoundName.length - 1], name)) { } new */ if (CharOperation.equals(getSimpleName(importBinding), name)) { // GROOVY end Binding resolvedImport = unitScope.resolveSingleImport(importBinding, Binding.TYPE); if (resolvedImport == null) continue nextImport; if (resolvedImport instanceof TypeBinding) { ImportReference importReference = importBinding.reference; if (importReference != null) importReference.bits |= ASTNode.Used; return resolvedImport; // already know its visible } } } } } // check if the name is in the current package, skip it if its a sub-package PackageBinding currentPackage = unitScope.fPackage; unitScope.recordReference(currentPackage.compoundName, name); Binding binding = currentPackage.getTypeOrPackage(name); if (binding instanceof ReferenceBinding) { ReferenceBinding referenceType = (ReferenceBinding) binding; if ((referenceType.tagBits & TagBits.HasMissingType) == 0) { if (typeOrPackageCache != null) typeOrPackageCache.put(name, referenceType); return referenceType; // type is always visible to its own package } } // check on demand imports if (imports != null) { boolean foundInImport = false; ReferenceBinding type = null; for (int i = 0, length = imports.length; i < length; i++) { ImportBinding someImport = imports[i]; if (someImport.onDemand) { Binding resolvedImport = someImport.resolvedImport; ReferenceBinding temp = null; if (resolvedImport instanceof PackageBinding) { temp = findType(name, (PackageBinding) resolvedImport, currentPackage); } else if (someImport.isStatic()) { temp = findMemberType(name, (ReferenceBinding) resolvedImport); // static imports are allowed to see inherited member types if (temp != null && !temp.isStatic()) temp = null; } else { temp = findDirectMemberType(name, (ReferenceBinding) resolvedImport); } if (temp != type && temp != null) { if (temp.isValidBinding()) { // GROOVY - start - allow for imports expressed in source to override 'default' imports - GRECLIPSE-945 boolean conflict = true; // do we need to continue checking if (this.parent != null && foundInImport) { CompilationUnitScope cuScope = compilationUnitScope(); if (cuScope != null) { ReferenceBinding chosenBinding = cuScope.selectBinding(temp, type, someImport.reference != null); if (chosenBinding != null) { // The new binding was selected as a valid answer conflict = false; foundInImport = true; type = chosenBinding; } } } if (conflict) { // GROOVY - end ImportReference importReference = someImport.reference; if (importReference != null) { importReference.bits |= ASTNode.Used; } if (foundInImport) { // Answer error binding -- import on demand conflict; name found in two import on demand packages. temp = new ProblemReferenceBinding(new char[][] { name }, type, ProblemReasons.Ambiguous); if (typeOrPackageCache != null) typeOrPackageCache.put(name, temp); return temp; } type = temp; foundInImport = true; // GROOVY - start } // GROOVY - end } else if (foundType == null) { foundType = temp; } } } } if (type != null) { if (typeOrPackageCache != null) typeOrPackageCache.put(name, type); return type; } } } unitScope.recordSimpleReference(name); if ((mask & Binding.PACKAGE) != 0) { PackageBinding packageBinding = unitScope.environment.getTopLevelPackage(name); if (packageBinding != null) { if (typeOrPackageCache != null) typeOrPackageCache.put(name, packageBinding); return packageBinding; } } // Answer error binding -- could not find name if (foundType == null) { char[][] qName = new char[][] { name }; ReferenceBinding closestMatch = null; if ((mask & Binding.PACKAGE) != 0) { if (needResolve) { closestMatch = environment().createMissingType(unitScope.fPackage, qName); } } else { PackageBinding packageBinding = unitScope.environment.getTopLevelPackage(name); if (packageBinding == null || !packageBinding.isValidBinding()) { if (needResolve) { closestMatch = environment().createMissingType(unitScope.fPackage, qName); } } } foundType = new ProblemReferenceBinding(qName, closestMatch, ProblemReasons.NotFound); if (typeOrPackageCache != null && (mask & Binding.PACKAGE) != 0) { // only put NotFound type in cache if you know its not a package typeOrPackageCache.put(name, foundType); } } else if ((foundType.tagBits & TagBits.HasMissingType) != 0) { char[][] qName = new char[][] { name }; foundType = new ProblemReferenceBinding(qName, foundType, ProblemReasons.NotFound); if (typeOrPackageCache != null && (mask & Binding.PACKAGE) != 0) // only put NotFound type in cache if you know its not a package typeOrPackageCache.put(name, foundType); } return foundType; }
From source file:org.eclipse.jdt.internal.compiler.parser.Parser.java
License:Open Source License
private static void buildFileForCompliance(String file, int length, String[] tokens) { byte[] result = new byte[length * 8]; for (int i = 0; i < tokens.length; i = i + 3) { if ("2".equals(tokens[i])) { //$NON-NLS-1$ int index = Integer.parseInt(tokens[i + 1]); String token = tokens[i + 2].trim(); long compliance = 0; if ("1.4".equals(token)) { //$NON-NLS-1$ compliance = ClassFileConstants.JDK1_4; } else if ("1.5".equals(token)) { //$NON-NLS-1$ compliance = ClassFileConstants.JDK1_5; } else if ("recovery".equals(token)) { //$NON-NLS-1$ compliance = ClassFileConstants.JDK_DEFERRED; }//from w w w . j a v a2s .com int j = index * 8; result[j] = (byte) (compliance >>> 56); result[j + 1] = (byte) (compliance >>> 48); result[j + 2] = (byte) (compliance >>> 40); result[j + 3] = (byte) (compliance >>> 32); result[j + 4] = (byte) (compliance >>> 24); result[j + 5] = (byte) (compliance >>> 16); result[j + 6] = (byte) (compliance >>> 8); result[j + 7] = (byte) (compliance); } } buildFileForTable(file, result); }
From source file:org.eclipse.jdt.internal.compiler.parser.Parser.java
License:Open Source License
protected void checkForDiamond(TypeReference allocType) { if (allocType instanceof ParameterizedSingleTypeReference) { ParameterizedSingleTypeReference type = (ParameterizedSingleTypeReference) allocType; if (type.typeArguments == TypeReference.NO_TYPE_ARGUMENTS) { if (this.options.sourceLevel < ClassFileConstants.JDK1_7) { problemReporter().diamondNotBelow17(allocType); }//from w w w .ja v a2 s .c o m if (this.options.sourceLevel > ClassFileConstants.JDK1_4) { // https://bugs.eclipse.org/bugs/show_bug.cgi?id=351965 type.bits |= ASTNode.IsDiamond; } // else don't even bother to recognize this as <> } } else if (allocType instanceof ParameterizedQualifiedTypeReference) { ParameterizedQualifiedTypeReference type = (ParameterizedQualifiedTypeReference) allocType; if (type.typeArguments[type.typeArguments.length - 1] == TypeReference.NO_TYPE_ARGUMENTS) { // Don't care for X<>.Y<> and X<>.Y<String> if (this.options.sourceLevel < ClassFileConstants.JDK1_7) { problemReporter().diamondNotBelow17(allocType, type.typeArguments.length - 1); } if (this.options.sourceLevel > ClassFileConstants.JDK1_4) { // https://bugs.eclipse.org/bugs/show_bug.cgi?id=351965 type.bits |= ASTNode.IsDiamond; } // else don't even bother to recognize this as <> } } }
From source file:org.hibernate.eclipse.console.workbench.ProjectCompilerVersionChecker.java
License:Open Source License
private static long versionToJdkLevel(Object versionID) { if (versionID instanceof String) { String version = (String) versionID; // verification is optimized for all versions with same length and same "1." prefix if (version.length() == 3 && version.charAt(0) == '1' && version.charAt(1) == '.') { switch (version.charAt(2)) { case '1': return ClassFileConstants.JDK1_1; case '2': return ClassFileConstants.JDK1_2; case '3': return ClassFileConstants.JDK1_3; case '4': return ClassFileConstants.JDK1_4; case '5': return ClassFileConstants.JDK1_5; case '6': return ClassFileConstants.JDK1_6; case '7': return ClassFileConstants.JDK1_7; case '8': return ClassFileConstants.JDK1_8; default: return 0; // unknown }//from w w w .java2 s .c om } if (VERSION_JSR14.equals(versionID)) { return ClassFileConstants.JDK1_4; } if (VERSION_CLDC1_1.equals(versionID)) { return ClassFileConstants.CLDC_1_1; } } return 0; // unknown }
From source file:spoon.support.ByteCodeOutputProcessor.java
License:Open Source License
/** * Tells if the source is Java 1.4 or lower. *//*from w ww . j av a 2s. c om*/ public long getJavaCompliance() { switch (getFactory().getEnvironment().getComplianceLevel()) { case 1: return ClassFileConstants.JDK1_1; case 2: return ClassFileConstants.JDK1_2; case 3: return ClassFileConstants.JDK1_3; case 4: return ClassFileConstants.JDK1_4; case 5: return ClassFileConstants.JDK1_5; case 6: return ClassFileConstants.JDK1_6; } return ClassFileConstants.JDK1_5; }