Copyright (c) 2000, 2019 IBM Corporation and others. This program and the accompanying materials are made available under the terms of the Eclipse Public License 2.0 which accompanies this distribution, and is available at https://www.eclipse.org/legal/epl-2.0/ SPDX-License-Identifier: EPL-2.0 Contributors: IBM Corporation - initial API and implementation Stephan Herrmann - Contributions for bug 349326 - [1.7] new warning for missing try-with-resources bug 186342 - [compiler][null] Using annotations for null checking bug 364890 - BinaryTypeBinding should use char constants from Util bug 365387 - [compiler][null] bug 186342: Issues to follow up post review and verification. bug 358903 - Filter practically unimportant resource leak warnings bug 365531 - [compiler][null] investigate alternative strategy for internally encoding nullness defaults bug 388800 - [1.8][compiler] detect default methods in class files bug 388281 - [compiler][null] inheritance of null annotations as an option bug 331649 - [compiler][null] consider null annotations for fields bug 392384 - [1.8][compiler][null] Restore nullness info from type annotations in class files Bug 392099 - [1.8][compiler][null] Apply null annotation on types for null analysis Bug 415043 - [1.8][null] Follow-up re null type annotations after bug 392099 Bug 415850 - [1.8] Ensure RunJDTCoreTests can cope with null annotations enabled Bug 417295 - [1.8[[null] Massage type annotated null analysis to gel well with deep encoded type bindings. Bug 427199 - [1.8][resource] avoid resource leak warnings on Streams that have no resource Bug 392245 - [1.8][compiler][null] Define whether / how @NonNullByDefault applies to TYPE_USE locations Bug 429958 - [1.8][null] evaluate new DefaultLocation attribute of @NonNullByDefault Bug 390889 - [1.8][compiler] Evaluate options to support 1.7- projects against 1.8 JRE. Bug 438458 - [1.8][null] clean up handling of null type annotations wrt type variables Bug 439516 - [1.8][null] NonNullByDefault wrongly applied to implicit type bound of binary type Bug 434602 - Possible error with inferred null annotations leading to contradictory null annotations Bug 440477 - [null] Infrastructure for feeding external annotations into compilation Bug 441693 - [1.8][null] Bogus warning for type argument annotated with @NonNull Bug 435805 - [1.8][compiler][null] Java 8 compiler does not recognize declaration style null annotations Bug 453475 - [1.8][null] Contradictory null annotations (4.5 M3 edition) Bug 454182 - Internal compiler error when using 1.8 compliance for simple project Bug 470467 - [null] Nullness of special Enum methods not detected from .class file Bug 447661 - [1.8][null] Incorrect 'expression needs unchecked conversion' warning Jesper Steen Moller - Contributions for Bug 412150 [1.8] [compiler] Enable reflected parameter names during annotation processing Bug 412153 - [1.8][compiler] Check validity of annotations which may be repeatable Sebastian Zarnekow - Contributions for bug 544921 - [performance] Poor performance with large source files
/******************************************************************************* * Copyright (c) 2000, 2019 IBM Corporation and others. * * This program and the accompanying materials * are made available under the terms of the Eclipse Public License 2.0 * which accompanies this distribution, and is available at * https://www.eclipse.org/legal/epl-2.0/ * * SPDX-License-Identifier: EPL-2.0 * * Contributors: * IBM Corporation - initial API and implementation * Stephan Herrmann - Contributions for * bug 349326 - [1.7] new warning for missing try-with-resources * bug 186342 - [compiler][null] Using annotations for null checking * bug 364890 - BinaryTypeBinding should use char constants from Util * bug 365387 - [compiler][null] bug 186342: Issues to follow up post review and verification. * bug 358903 - Filter practically unimportant resource leak warnings * bug 365531 - [compiler][null] investigate alternative strategy for internally encoding nullness defaults * bug 388800 - [1.8][compiler] detect default methods in class files * bug 388281 - [compiler][null] inheritance of null annotations as an option * bug 331649 - [compiler][null] consider null annotations for fields * bug 392384 - [1.8][compiler][null] Restore nullness info from type annotations in class files * Bug 392099 - [1.8][compiler][null] Apply null annotation on types for null analysis * Bug 415043 - [1.8][null] Follow-up re null type annotations after bug 392099 * Bug 415850 - [1.8] Ensure RunJDTCoreTests can cope with null annotations enabled * Bug 417295 - [1.8[[null] Massage type annotated null analysis to gel well with deep encoded type bindings. * Bug 427199 - [1.8][resource] avoid resource leak warnings on Streams that have no resource * Bug 392245 - [1.8][compiler][null] Define whether / how @NonNullByDefault applies to TYPE_USE locations * Bug 429958 - [1.8][null] evaluate new DefaultLocation attribute of @NonNullByDefault * Bug 390889 - [1.8][compiler] Evaluate options to support 1.7- projects against 1.8 JRE. * Bug 438458 - [1.8][null] clean up handling of null type annotations wrt type variables * Bug 439516 - [1.8][null] NonNullByDefault wrongly applied to implicit type bound of binary type * Bug 434602 - Possible error with inferred null annotations leading to contradictory null annotations * Bug 440477 - [null] Infrastructure for feeding external annotations into compilation * Bug 441693 - [1.8][null] Bogus warning for type argument annotated with @NonNull * Bug 435805 - [1.8][compiler][null] Java 8 compiler does not recognize declaration style null annotations * Bug 453475 - [1.8][null] Contradictory null annotations (4.5 M3 edition) * Bug 454182 - Internal compiler error when using 1.8 compliance for simple project * Bug 470467 - [null] Nullness of special Enum methods not detected from .class file * Bug 447661 - [1.8][null] Incorrect 'expression needs unchecked conversion' warning * Jesper Steen Moller - Contributions for * Bug 412150 [1.8] [compiler] Enable reflected parameter names during annotation processing * Bug 412153 - [1.8][compiler] Check validity of annotations which may be repeatable * Sebastian Zarnekow - Contributions for * bug 544921 - [performance] Poor performance with large source files *******************************************************************************/
package org.eclipse.jdt.internal.compiler.lookup; import java.util.ArrayList; import org.eclipse.jdt.core.compiler.CharOperation; import org.eclipse.jdt.internal.compiler.ast.Annotation; import org.eclipse.jdt.internal.compiler.classfmt.AnnotationInfo; import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants; import org.eclipse.jdt.internal.compiler.classfmt.ExternalAnnotationProvider.IMethodAnnotationWalker; import org.eclipse.jdt.internal.compiler.classfmt.MethodInfoWithAnnotations; import org.eclipse.jdt.internal.compiler.classfmt.NonNullDefaultAwareTypeAnnotationWalker; import org.eclipse.jdt.internal.compiler.classfmt.TypeAnnotationWalker; import org.eclipse.jdt.internal.compiler.codegen.ConstantPool; import org.eclipse.jdt.internal.compiler.env.ClassSignature; import org.eclipse.jdt.internal.compiler.env.EnumConstantSignature; import org.eclipse.jdt.internal.compiler.env.IBinaryAnnotation; import org.eclipse.jdt.internal.compiler.env.IBinaryElementValuePair; import org.eclipse.jdt.internal.compiler.env.IBinaryField; import org.eclipse.jdt.internal.compiler.env.IBinaryMethod; import org.eclipse.jdt.internal.compiler.env.IBinaryNestedType; import org.eclipse.jdt.internal.compiler.env.IBinaryType; import org.eclipse.jdt.internal.compiler.env.IBinaryTypeAnnotation; import org.eclipse.jdt.internal.compiler.env.ITypeAnnotationWalker; import org.eclipse.jdt.internal.compiler.impl.BooleanConstant; import org.eclipse.jdt.internal.compiler.impl.CompilerOptions; import org.eclipse.jdt.internal.compiler.impl.Constant; import org.eclipse.jdt.internal.compiler.problem.AbortCompilation; import org.eclipse.jdt.internal.compiler.util.SimpleLookupTable; import org.eclipse.jdt.internal.compiler.util.Util; /* Not all fields defined by this type are initialized when it is created. Some are initialized only when needed. Accessors have been provided for some public fields so all TypeBindings have the same API... but access public fields directly whenever possible. Non-public fields have accessors which should be used everywhere you expect the field to be initialized. null is NOT a valid value for a non-public field... it just means the field is not initialized. */ @SuppressWarnings({ "rawtypes", "unchecked" }) public class BinaryTypeBinding extends ReferenceBinding { public static final char[] TYPE_QUALIFIER_DEFAULT = "TypeQualifierDefault".toCharArray(); //$NON-NLS-1$ private static final IBinaryMethod[] NO_BINARY_METHODS = new IBinaryMethod[0]; // all of these fields are ONLY guaranteed to be initialized if accessed using their public accessor method protected ReferenceBinding superclass; protected ReferenceBinding enclosingType; protected ReferenceBinding[] superInterfaces; protected FieldBinding[] fields; protected MethodBinding[] methods; protected ReferenceBinding[] memberTypes; protected TypeVariableBinding[] typeVariables; protected ModuleBinding module; private BinaryTypeBinding prototype; // For the link with the principle structure protected LookupEnvironment environment; protected SimpleLookupTable storedAnnotations = null; // keys are this ReferenceBinding & its fields and methods, value is an AnnotationHolder private ReferenceBinding containerAnnotationType; int defaultNullness = 0; boolean memberTypesSorted = false; public enum ExternalAnnotationStatus { FROM_SOURCE, NOT_EEA_CONFIGURED, NO_EEA_FILE, TYPE_IS_ANNOTATED; public boolean isPotentiallyUnannotatedLib() { switch (this) { case FROM_SOURCE: case TYPE_IS_ANNOTATED: return false; default: return true; } } } public ExternalAnnotationStatus externalAnnotationStatus = ExternalAnnotationStatus.NOT_EEA_CONFIGURED; // unless proven differently static Object convertMemberValue(Object binaryValue, LookupEnvironment env, char[][][] missingTypeNames, boolean resolveEnumConstants) { if (binaryValue == null) return null; if (binaryValue instanceof Constant) return binaryValue; if (binaryValue instanceof ClassSignature) return env.getTypeFromSignature(((ClassSignature) binaryValue).getTypeName(), 0, -1, false, null, missingTypeNames, ITypeAnnotationWalker.EMPTY_ANNOTATION_WALKER); if (binaryValue instanceof IBinaryAnnotation) return createAnnotation((IBinaryAnnotation) binaryValue, env, missingTypeNames); if (binaryValue instanceof EnumConstantSignature) { EnumConstantSignature ref = (EnumConstantSignature) binaryValue; ReferenceBinding enumType = (ReferenceBinding) env.getTypeFromSignature(ref.getTypeName(), 0, -1, false, null, missingTypeNames, ITypeAnnotationWalker.EMPTY_ANNOTATION_WALKER); if (enumType.isUnresolvedType() && !resolveEnumConstants) return new ElementValuePair.UnresolvedEnumConstant(enumType, env, ref.getEnumConstantName()); enumType = (ReferenceBinding) resolveType(enumType, env, false /* no raw conversion */); return enumType.getField(ref.getEnumConstantName(), false); } if (binaryValue instanceof Object[]) { Object[] objects = (Object[]) binaryValue; int length = objects.length; if (length == 0) return objects; Object[] values = new Object[length]; for (int i = 0; i < length; i++) values[i] = convertMemberValue(objects[i], env, missingTypeNames, resolveEnumConstants); return values; } // should never reach here. throw new IllegalStateException(); } @Override public TypeBinding clone(TypeBinding outerType) { BinaryTypeBinding copy = new BinaryTypeBinding(this); copy.enclosingType = (ReferenceBinding) outerType; /* BinaryTypeBinding construction is not "atomic" and is split between the constructor and cachePartsFrom and between the two stages of construction, clone can kick in when LookupEnvironment.createBinaryTypeFrom calls PackageBinding.addType. This can result in some URB's being resolved, which could trigger the clone call, leaving the clone with semi-initialized prototype. Fortunately, the protocol for this type demands all clients to use public access methods, where we can deflect the call to the prototype. enclosingType() and memberTypes() should not delegate, so ... */ if (copy.enclosingType != null) copy.tagBits |= TagBits.HasUnresolvedEnclosingType; else copy.tagBits &= ~TagBits.HasUnresolvedEnclosingType; copy.tagBits |= TagBits.HasUnresolvedMemberTypes; return copy; } static AnnotationBinding createAnnotation(IBinaryAnnotation annotationInfo, LookupEnvironment env, char[][][] missingTypeNames) { // temporary debug for Bug 532176 - [10] NPE during reconcile if (annotationInfo instanceof AnnotationInfo) { RuntimeException ex = ((AnnotationInfo) annotationInfo).exceptionDuringDecode; if (ex != null) new IllegalStateException("Accessing annotation with decode error", ex).printStackTrace(); //$NON-NLS-1$ } //-- IBinaryElementValuePair[] binaryPairs = annotationInfo.getElementValuePairs(); int length = binaryPairs == null ? 0 : binaryPairs.length; ElementValuePair[] pairs = length == 0 ? Binding.NO_ELEMENT_VALUE_PAIRS : new ElementValuePair[length]; for (int i = 0; i < length; i++) pairs[i] = new ElementValuePair(binaryPairs[i].getName(), convertMemberValue(binaryPairs[i].getValue(), env, missingTypeNames, false), null); char[] typeName = annotationInfo.getTypeName(); LookupEnvironment env2 = annotationInfo.isExternalAnnotation() ? env.root : env; ReferenceBinding annotationType = env2.getTypeFromConstantPoolName(typeName, 1, typeName.length - 1, false, missingTypeNames); return env2.createUnresolvedAnnotation(annotationType, pairs); } public static AnnotationBinding[] createAnnotations(IBinaryAnnotation[] annotationInfos, LookupEnvironment env, char[][][] missingTypeNames) { int length = annotationInfos == null ? 0 : annotationInfos.length; AnnotationBinding[] result = length == 0 ? Binding.NO_ANNOTATIONS : new AnnotationBinding[length]; for (int i = 0; i < length; i++) result[i] = createAnnotation(annotationInfos[i], env, missingTypeNames); return result; } public static TypeBinding resolveType(TypeBinding type, LookupEnvironment environment, boolean convertGenericToRawType) { switch (type.kind()) { case Binding.PARAMETERIZED_TYPE : ((ParameterizedTypeBinding) type).resolve(); break; case Binding.WILDCARD_TYPE : case Binding.INTERSECTION_TYPE : return ((WildcardBinding) type).resolve(); case Binding.ARRAY_TYPE : ArrayBinding arrayBinding = (ArrayBinding) type; TypeBinding leafComponentType = arrayBinding.leafComponentType; resolveType(leafComponentType, environment, convertGenericToRawType); if (leafComponentType.hasNullTypeAnnotations() && environment.usesNullTypeAnnotations()) { if (arrayBinding.nullTagBitsPerDimension == null) arrayBinding.nullTagBitsPerDimension = new long[arrayBinding.dimensions+1]; arrayBinding.nullTagBitsPerDimension[arrayBinding.dimensions] = leafComponentType.tagBits & TagBits.AnnotationNullMASK; } break; case Binding.TYPE_PARAMETER : ((TypeVariableBinding) type).resolve(); break; case Binding.GENERIC_TYPE : if (convertGenericToRawType) // raw reference to generic ? return environment.convertUnresolvedBinaryToRawType(type); break; default: if (type instanceof UnresolvedReferenceBinding) return ((UnresolvedReferenceBinding) type).resolve(environment, convertGenericToRawType); if (convertGenericToRawType) // raw reference to generic ? return environment.convertUnresolvedBinaryToRawType(type); break; } return type; }
Default empty constructor for subclasses only.
/** * Default empty constructor for subclasses only. */
protected BinaryTypeBinding() { // only for subclasses this.prototype = this; } public BinaryTypeBinding(BinaryTypeBinding prototype) { super(prototype); this.superclass = prototype.superclass; this.enclosingType = prototype.enclosingType; this.superInterfaces = prototype.superInterfaces; this.fields = prototype.fields; this.methods = prototype.methods; this.memberTypes = prototype.memberTypes; this.typeVariables = prototype.typeVariables; this.prototype = prototype.prototype; this.environment = prototype.environment; this.storedAnnotations = prototype.storedAnnotations; }
Standard constructor for creating binary type bindings from binary models (classfiles)
Params:
  • packageBinding –
  • binaryType –
  • environment –
/** * Standard constructor for creating binary type bindings from binary models (classfiles) * @param packageBinding * @param binaryType * @param environment */
public BinaryTypeBinding(PackageBinding packageBinding, IBinaryType binaryType, LookupEnvironment environment) { this(packageBinding, binaryType, environment, false); }
Standard constructor for creating binary type bindings from binary models (classfiles)
Params:
  • packageBinding –
  • binaryType –
  • environment –
  • needFieldsAndMethods –
/** * Standard constructor for creating binary type bindings from binary models (classfiles) * @param packageBinding * @param binaryType * @param environment * @param needFieldsAndMethods */
public BinaryTypeBinding(PackageBinding packageBinding, IBinaryType binaryType, LookupEnvironment environment, boolean needFieldsAndMethods) { this.prototype = this; this.compoundName = CharOperation.splitOn('/', binaryType.getName()); computeId(); this.tagBits |= TagBits.IsBinaryBinding; this.environment = environment; this.fPackage = packageBinding; this.fileName = binaryType.getFileName(); /* https://bugs.eclipse.org/bugs/show_bug.cgi?id=324850, even in a 1.4 project, we must internalize type variables and observe any parameterization of super class and/or super interfaces in order to be able to detect overriding in the presence of generics. */ char[] typeSignature = binaryType.getGenericSignature(); this.typeVariables = typeSignature != null && typeSignature.length > 0 && typeSignature[0] == Util.C_GENERIC_START ? null // is initialized in cachePartsFrom (called from LookupEnvironment.createBinaryTypeFrom())... must set to null so isGenericType() answers true : Binding.NO_TYPE_VARIABLES; this.sourceName = binaryType.getSourceName(); this.modifiers = binaryType.getModifiers(); if ((binaryType.getTagBits() & TagBits.HierarchyHasProblems) != 0) this.tagBits |= TagBits.HierarchyHasProblems; if (binaryType.isAnonymous()) { this.tagBits |= TagBits.AnonymousTypeMask; } else if (binaryType.isLocal()) { this.tagBits |= TagBits.LocalTypeMask; } else if (binaryType.isMember()) { this.tagBits |= TagBits.MemberTypeMask; } // need enclosing type to access type variables char[] enclosingTypeName = binaryType.getEnclosingTypeName(); if (enclosingTypeName != null) { // attempt to find the enclosing type if it exists in the cache (otherwise - resolve it when requested) this.enclosingType = environment.getTypeFromConstantPoolName(enclosingTypeName, 0, -1, true, null /* could not be missing */); // pretend parameterized to avoid raw this.tagBits |= TagBits.MemberTypeMask; // must be a member type not a top-level or local type this.tagBits |= TagBits.HasUnresolvedEnclosingType; if (enclosingType().isStrictfp()) this.modifiers |= ClassFileConstants.AccStrictfp; if (enclosingType().isDeprecated()) this.modifiers |= ExtraCompilerModifiers.AccDeprecatedImplicitly; } if (needFieldsAndMethods) cachePartsFrom(binaryType, true); } @Override public boolean canBeSeenBy(Scope sco) { ModuleBinding mod = sco.module(); return mod.canAccess(this.fPackage) && super.canBeSeenBy(sco); }
See Also:
  • availableFields.availableFields()
/** * @see org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding#availableFields() */
@Override public FieldBinding[] availableFields() { if (!isPrototype()) { return this.prototype.availableFields(); } if ((this.tagBits & TagBits.AreFieldsComplete) != 0) return this.fields; // lazily sort fields if ((this.tagBits & TagBits.AreFieldsSorted) == 0) { int length = this.fields.length; if (length > 1) ReferenceBinding.sortFields(this.fields, 0, length); this.tagBits |= TagBits.AreFieldsSorted; } FieldBinding[] availableFields = new FieldBinding[this.fields.length]; int count = 0; for (int i = 0; i < this.fields.length; i++) { try { availableFields[count] = resolveTypeFor(this.fields[i]); count++; } catch (AbortCompilation a){ // silent abort } } if (count < availableFields.length) System.arraycopy(availableFields, 0, availableFields = new FieldBinding[count], 0, count); return availableFields; } private TypeVariableBinding[] addMethodTypeVariables(TypeVariableBinding[] methodTypeVars) { if (!isPrototype()) throw new IllegalStateException(); if (this.typeVariables == null || this.typeVariables == Binding.NO_TYPE_VARIABLES) { return methodTypeVars; } if (methodTypeVars == null || methodTypeVars == Binding.NO_TYPE_VARIABLES) { return this.typeVariables; } // uniq-merge both the arrays int total = this.typeVariables.length + methodTypeVars.length; TypeVariableBinding[] combinedTypeVars = new TypeVariableBinding[total]; System.arraycopy(this.typeVariables, 0, combinedTypeVars, 0, this.typeVariables.length); int size = this.typeVariables.length; loop: for (int i = 0, len = methodTypeVars.length; i < len; i++) { for (int j = this.typeVariables.length -1 ; j >= 0; j--) { if (CharOperation.equals(methodTypeVars[i].sourceName, this.typeVariables[j].sourceName)) continue loop; } combinedTypeVars[size++] = methodTypeVars[i]; } if (size != total) { System.arraycopy(combinedTypeVars, 0, combinedTypeVars = new TypeVariableBinding[size], 0, size); } return combinedTypeVars; }
See Also:
  • availableMethods.availableMethods()
/** * @see org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding#availableMethods() */
@Override public MethodBinding[] availableMethods() { if (!isPrototype()) { return this.prototype.availableMethods(); } if ((this.tagBits & TagBits.AreMethodsComplete) != 0) return this.methods; // lazily sort methods if ((this.tagBits & TagBits.AreMethodsSorted) == 0) { int length = this.methods.length; if (length > 1) ReferenceBinding.sortMethods(this.methods, 0, length); this.tagBits |= TagBits.AreMethodsSorted; } MethodBinding[] availableMethods = new MethodBinding[this.methods.length]; int count = 0; for (int i = 0; i < this.methods.length; i++) { try { availableMethods[count] = resolveTypesFor(this.methods[i]); count++; } catch (AbortCompilation a){ // silent abort } } if (count < availableMethods.length) System.arraycopy(availableMethods, 0, availableMethods = new MethodBinding[count], 0, count); return availableMethods; } void cachePartsFrom(IBinaryType binaryType, boolean needFieldsAndMethods) { if (!isPrototype()) throw new IllegalStateException(); try { // default initialization for super-interfaces early, in case some aborting compilation error occurs, // and still want to use binaries passed that point (e.g. type hierarchy resolver, see bug 63748). this.typeVariables = Binding.NO_TYPE_VARIABLES; this.superInterfaces = Binding.NO_SUPERINTERFACES; // must retrieve member types in case superclass/interfaces need them this.memberTypes = Binding.NO_MEMBER_TYPES; IBinaryNestedType[] memberTypeStructures = binaryType.getMemberTypes(); if (memberTypeStructures != null) { int size = memberTypeStructures.length; if (size > 0) { this.memberTypes = new ReferenceBinding[size]; for (int i = 0; i < size; i++) { // attempt to find each member type if it exists in the cache (otherwise - resolve it when requested) this.memberTypes[i] = this.environment.getTypeFromConstantPoolName(memberTypeStructures[i].getName(), 0, -1, false, null /* could not be missing */); } this.tagBits |= TagBits.HasUnresolvedMemberTypes; } } CompilerOptions globalOptions = this.environment.globalOptions; long sourceLevel = globalOptions.originalSourceLevel; /* https://bugs.eclipse.org/bugs/show_bug.cgi?id=324850, even in a 1.4 project, we must internalize type variables and observe any parameterization of super class and/or super interfaces in order to be able to detect overriding in the presence of generics. */ if (this.environment.globalOptions.isAnnotationBasedNullAnalysisEnabled) { // need annotations on the type before processing null annotations on members respecting any @NonNullByDefault: scanTypeForNullDefaultAnnotation(binaryType, this.fPackage); } ITypeAnnotationWalker walker = getTypeAnnotationWalker(binaryType.getTypeAnnotations(), Binding.NO_NULL_DEFAULT); ITypeAnnotationWalker toplevelWalker = binaryType.enrichWithExternalAnnotationsFor(walker, null, this.environment); this.externalAnnotationStatus = binaryType.getExternalAnnotationStatus(); if (this.externalAnnotationStatus.isPotentiallyUnannotatedLib() && this.defaultNullness != 0) { this.externalAnnotationStatus = ExternalAnnotationStatus.TYPE_IS_ANNOTATED; } char[] typeSignature = binaryType.getGenericSignature(); // use generic signature even in 1.4 this.tagBits |= binaryType.getTagBits(); if (this.environment.globalOptions.complianceLevel < ClassFileConstants.JDK1_8) this.tagBits &= ~TagBits.AnnotationForTypeUse; // avoid confusion with semantics that are not supported at 1.7- char[][][] missingTypeNames = binaryType.getMissingTypeNames(); SignatureWrapper wrapper = null; if (typeSignature != null) { // ClassSignature = ParameterPart(optional) super_TypeSignature interface_signature wrapper = new SignatureWrapper(typeSignature); if (wrapper.signature[wrapper.start] == Util.C_GENERIC_START) { // ParameterPart = '<' ParameterSignature(s) '>' wrapper.start++; // skip '<' this.typeVariables = createTypeVariables(wrapper, true, missingTypeNames, toplevelWalker, true/*class*/); wrapper.start++; // skip '>' this.tagBits |= TagBits.HasUnresolvedTypeVariables; this.modifiers |= ExtraCompilerModifiers.AccGenericSignature; } } TypeVariableBinding[] typeVars = Binding.NO_TYPE_VARIABLES; char[] methodDescriptor = binaryType.getEnclosingMethod(); if (methodDescriptor != null) { MethodBinding enclosingMethod = findMethod(methodDescriptor, missingTypeNames); if (enclosingMethod != null) { typeVars = enclosingMethod.typeVariables; this.typeVariables = addMethodTypeVariables(typeVars); } } if (typeSignature == null) { char[] superclassName = binaryType.getSuperclassName(); if (superclassName != null) { // attempt to find the superclass if it exists in the cache (otherwise - resolve it when requested) this.superclass = this.environment.getTypeFromConstantPoolName(superclassName, 0, -1, false, missingTypeNames, toplevelWalker.toSupertype((short) -1, superclassName)); this.tagBits |= TagBits.HasUnresolvedSuperclass; } this.superInterfaces = Binding.NO_SUPERINTERFACES; char[][] interfaceNames = binaryType.getInterfaceNames(); if (interfaceNames != null) { int size = interfaceNames.length; if (size > 0) { this.superInterfaces = new ReferenceBinding[size]; for (short i = 0; i < size; i++) // attempt to find each superinterface if it exists in the cache (otherwise - resolve it when requested) this.superInterfaces[i] = this.environment.getTypeFromConstantPoolName(interfaceNames[i], 0, -1, false, missingTypeNames, toplevelWalker.toSupertype(i, superclassName)); this.tagBits |= TagBits.HasUnresolvedSuperinterfaces; } } } else { // attempt to find the superclass if it exists in the cache (otherwise - resolve it when requested) this.superclass = (ReferenceBinding) this.environment.getTypeFromTypeSignature(wrapper, typeVars, this, missingTypeNames, toplevelWalker.toSupertype((short) -1, wrapper.peekFullType())); this.tagBits |= TagBits.HasUnresolvedSuperclass; this.superInterfaces = Binding.NO_SUPERINTERFACES; if (!wrapper.atEnd()) { // attempt to find each superinterface if it exists in the cache (otherwise - resolve it when requested) java.util.ArrayList types = new java.util.ArrayList(2); short rank = 0; do { types.add(this.environment.getTypeFromTypeSignature(wrapper, typeVars, this, missingTypeNames, toplevelWalker.toSupertype(rank++, wrapper.peekFullType()))); } while (!wrapper.atEnd()); this.superInterfaces = new ReferenceBinding[types.size()]; types.toArray(this.superInterfaces); this.tagBits |= TagBits.HasUnresolvedSuperinterfaces; } } boolean canUseNullTypeAnnotations = this.environment.globalOptions.isAnnotationBasedNullAnalysisEnabled && this.environment.globalOptions.sourceLevel >= ClassFileConstants.JDK1_8; if (canUseNullTypeAnnotations && this.externalAnnotationStatus.isPotentiallyUnannotatedLib()) { if (this.superclass != null && this.superclass.hasNullTypeAnnotations()) { this.externalAnnotationStatus = ExternalAnnotationStatus.TYPE_IS_ANNOTATED; } else { for (TypeBinding ifc : this.superInterfaces) { if (ifc.hasNullTypeAnnotations()) { this.externalAnnotationStatus = ExternalAnnotationStatus.TYPE_IS_ANNOTATED; break; } } } } if (needFieldsAndMethods) { IBinaryField[] iFields = binaryType.getFields(); createFields(iFields, binaryType, sourceLevel, missingTypeNames); IBinaryMethod[] iMethods = createMethods(binaryType.getMethods(), binaryType, sourceLevel, missingTypeNames); boolean isViewedAsDeprecated = isViewedAsDeprecated(); if (isViewedAsDeprecated) { for (int i = 0, max = this.fields.length; i < max; i++) { FieldBinding field = this.fields[i]; if (!field.isDeprecated()) { field.modifiers |= ExtraCompilerModifiers.AccDeprecatedImplicitly; } } for (int i = 0, max = this.methods.length; i < max; i++) { MethodBinding method = this.methods[i]; if (!method.isDeprecated()) { method.modifiers |= ExtraCompilerModifiers.AccDeprecatedImplicitly; } } } if (this.environment.globalOptions.isAnnotationBasedNullAnalysisEnabled) { if (iFields != null) { for (int i = 0; i < iFields.length; i++) { // below 1.8 we still might use an annotation walker to discover external annotations: ITypeAnnotationWalker fieldWalker = ITypeAnnotationWalker.EMPTY_ANNOTATION_WALKER; if (sourceLevel < ClassFileConstants.JDK1_8) fieldWalker = binaryType.enrichWithExternalAnnotationsFor(walker, iFields[i], this.environment); scanFieldForNullAnnotation(iFields[i], this.fields[i], this.isEnum(), fieldWalker); } } if (iMethods != null) { for (int i = 0; i < iMethods.length; i++) { // below 1.8 we still might use an annotation walker to discover external annotations: ITypeAnnotationWalker methodWalker = ITypeAnnotationWalker.EMPTY_ANNOTATION_WALKER; if (sourceLevel < ClassFileConstants.JDK1_8) methodWalker = binaryType.enrichWithExternalAnnotationsFor(methodWalker, iMethods[i], this.environment); scanMethodForNullAnnotation(iMethods[i], this.methods[i], methodWalker, canUseNullTypeAnnotations); } } } } if (this.environment.globalOptions.storeAnnotations) { setAnnotations(createAnnotations(binaryType.getAnnotations(), this.environment, missingTypeNames), false); } else if (sourceLevel >= ClassFileConstants.JDK9 && isDeprecated() && binaryType.getAnnotations() != null) { // prior to Java 9 all standard annotations were marker annotations, not needing to be stored, // but since Java 9 we need more information from the @Deprecated annotation: for (IBinaryAnnotation annotation : binaryType.getAnnotations()) { if (annotation.isDeprecatedAnnotation()) { AnnotationBinding[] annotationBindings = createAnnotations(new IBinaryAnnotation[] { annotation }, this.environment, missingTypeNames); setAnnotations(annotationBindings, true); // force storing for (ElementValuePair elementValuePair : annotationBindings[0].getElementValuePairs()) { if (CharOperation.equals(elementValuePair.name, TypeConstants.FOR_REMOVAL)) { if (elementValuePair.value instanceof BooleanConstant && ((BooleanConstant) elementValuePair.value).booleanValue()) { this.tagBits |= TagBits.AnnotationTerminallyDeprecated; markImplicitTerminalDeprecation(this); } } } break; } } } if (this.isAnnotationType()) scanTypeForContainerAnnotation(binaryType, missingTypeNames); } finally { // protect against incorrect use of the needFieldsAndMethods flag, see 48459 if (this.fields == null) this.fields = Binding.NO_FIELDS; if (this.methods == null) this.methods = Binding.NO_METHODS; } } void markImplicitTerminalDeprecation(ReferenceBinding type) { for (ReferenceBinding member : type.memberTypes()) { member.tagBits |= TagBits.AnnotationTerminallyDeprecated; markImplicitTerminalDeprecation(member); } MethodBinding[] methodsOfType = type.unResolvedMethods(); if (methodsOfType != null) for (MethodBinding methodBinding : methodsOfType) methodBinding.tagBits |= TagBits.AnnotationTerminallyDeprecated; FieldBinding[] fieldsOfType = type.unResolvedFields(); if (fieldsOfType != null) for (FieldBinding fieldBinding : fieldsOfType) fieldBinding.tagBits |= TagBits.AnnotationTerminallyDeprecated; } /* When creating a method we need to pass in any default 'nullness' from a @NNBD immediately on this method. */ private ITypeAnnotationWalker getTypeAnnotationWalker(IBinaryTypeAnnotation[] annotations, int nullness) { if (!isPrototype()) throw new IllegalStateException(); if (annotations == null || annotations.length == 0 || !this.environment.usesAnnotatedTypeSystem()) { if (this.environment.globalOptions.isAnnotationBasedNullAnalysisEnabled) { if (nullness == Binding.NO_NULL_DEFAULT) nullness = getNullDefault(); if (nullness > Binding.NULL_UNSPECIFIED_BY_DEFAULT) return new NonNullDefaultAwareTypeAnnotationWalker(nullness, this.environment); } return ITypeAnnotationWalker.EMPTY_ANNOTATION_WALKER; } if (this.environment.globalOptions.isAnnotationBasedNullAnalysisEnabled) { if (nullness == Binding.NO_NULL_DEFAULT) nullness = getNullDefault(); if (nullness > Binding.NULL_UNSPECIFIED_BY_DEFAULT) return new NonNullDefaultAwareTypeAnnotationWalker(annotations, nullness, this.environment); } return new TypeAnnotationWalker(annotations); } private int getNullDefaultFrom(IBinaryAnnotation[] declAnnotations) { int result = 0; if (declAnnotations != null) { for (IBinaryAnnotation annotation : declAnnotations) { char[][] typeName = signature2qualifiedTypeName(annotation.getTypeName()); if (this.environment.getNullAnnotationBit(typeName) == TypeIds.BitNonNullByDefaultAnnotation) result |= getNonNullByDefaultValue(annotation, this.environment); } } return result; } private void createFields(IBinaryField[] iFields, IBinaryType binaryType, long sourceLevel, char[][][] missingTypeNames) { if (!isPrototype()) throw new IllegalStateException(); boolean save = this.environment.mayTolerateMissingType; this.environment.mayTolerateMissingType = true; try { this.fields = Binding.NO_FIELDS; if (iFields != null) { int size = iFields.length; if (size > 0) { FieldBinding[] fields1 = new FieldBinding[size]; boolean use15specifics = sourceLevel >= ClassFileConstants.JDK1_5; boolean hasRestrictedAccess = hasRestrictedAccess(); int firstAnnotatedFieldIndex = -1; for (int i = 0; i < size; i++) { IBinaryField binaryField = iFields[i]; char[] fieldSignature = use15specifics ? binaryField.getGenericSignature() : null; ITypeAnnotationWalker walker = getTypeAnnotationWalker(binaryField.getTypeAnnotations(), getNullDefaultFrom(binaryField.getAnnotations())); if (sourceLevel >= ClassFileConstants.JDK1_8) { // below 1.8, external annotations will be attached later walker = binaryType.enrichWithExternalAnnotationsFor(walker, iFields[i], this.environment); } walker = walker.toField(); TypeBinding type = fieldSignature == null ? this.environment.getTypeFromSignature(binaryField.getTypeName(), 0, -1, false, this, missingTypeNames, walker) : this.environment.getTypeFromTypeSignature(new SignatureWrapper(fieldSignature), Binding.NO_TYPE_VARIABLES, this, missingTypeNames, walker); FieldBinding field = new FieldBinding( binaryField.getName(), type, binaryField.getModifiers() | ExtraCompilerModifiers.AccUnresolved, this, binaryField.getConstant()); boolean forceStoreAnnotations = !this.environment.globalOptions.storeAnnotations && (this.environment.globalOptions.sourceLevel >= ClassFileConstants.JDK9 && binaryField.getAnnotations() != null && (binaryField.getTagBits() & TagBits.AnnotationDeprecated) != 0); if (firstAnnotatedFieldIndex < 0 && (this.environment.globalOptions.storeAnnotations || forceStoreAnnotations) && binaryField.getAnnotations() != null) { firstAnnotatedFieldIndex = i; if (forceStoreAnnotations) storedAnnotations(true, true); // for Java 9 @Deprecated we need to force storing annotations } field.id = i; // ordinal if (use15specifics) field.tagBits |= binaryField.getTagBits(); if (hasRestrictedAccess) field.modifiers |= ExtraCompilerModifiers.AccRestrictedAccess; if (fieldSignature != null) field.modifiers |= ExtraCompilerModifiers.AccGenericSignature; fields1[i] = field; } this.fields = fields1; // second pass for reifying annotations, since may refer to fields being constructed (147875) if (firstAnnotatedFieldIndex >= 0) { for (int i = firstAnnotatedFieldIndex; i <size; i++) { IBinaryField binaryField = iFields[i]; this.fields[i].setAnnotations(createAnnotations(binaryField.getAnnotations(), this.environment, missingTypeNames), false); } } } } } finally { this.environment.mayTolerateMissingType = save; } } private MethodBinding createMethod(IBinaryMethod method, IBinaryType binaryType, long sourceLevel, char[][][] missingTypeNames) { if (!isPrototype()) throw new IllegalStateException(); int methodModifiers = method.getModifiers() | ExtraCompilerModifiers.AccUnresolved; if (sourceLevel < ClassFileConstants.JDK1_5) methodModifiers &= ~ClassFileConstants.AccVarargs; // vararg methods are not recognized until 1.5 if (isInterface() && (methodModifiers & ClassFileConstants.AccAbstract) == 0) { // see https://bugs.eclipse.org/388954 superseded by https://bugs.eclipse.org/390889 if (((methodModifiers & ClassFileConstants.AccStatic) == 0 && (methodModifiers & ClassFileConstants.AccPrivate) == 0)) { // i.e. even at 1.7- we record AccDefaultMethod when reading a 1.8+ interface to avoid errors caused by default methods added to a library methodModifiers |= ExtraCompilerModifiers.AccDefaultMethod; } } ReferenceBinding[] exceptions = Binding.NO_EXCEPTIONS; TypeBinding[] parameters = Binding.NO_PARAMETERS; TypeVariableBinding[] typeVars = Binding.NO_TYPE_VARIABLES; AnnotationBinding[][] paramAnnotations = null; TypeBinding returnType = null; char[][] argumentNames = method.getArgumentNames(); final boolean use15specifics = sourceLevel >= ClassFileConstants.JDK1_5; /* https://bugs.eclipse.org/bugs/show_bug.cgi?id=324850, Since a 1.4 project can have a 1.5 type as a super type and the 1.5 type could be generic, we must internalize usages of type variables properly in order to be able to apply substitutions and thus be able to detect overriding in the presence of generics. Seeing the erased form is not good enough. */ ITypeAnnotationWalker walker = getTypeAnnotationWalker(method.getTypeAnnotations(), getNullDefaultFrom(method.getAnnotations())); char[] methodSignature = method.getGenericSignature(); // always use generic signature, even in 1.4 if (methodSignature == null) { // no generics char[] methodDescriptor = method.getMethodDescriptor(); // of the form (I[Ljava/jang/String;)V if (sourceLevel >= ClassFileConstants.JDK1_8) { // below 1.8, external annotations will be attached later walker = binaryType.enrichWithExternalAnnotationsFor(walker, method, this.environment); } int numOfParams = 0; char nextChar; int index = 0; // first character is always '(' so skip it while ((nextChar = methodDescriptor[++index]) != Util.C_PARAM_END) { if (nextChar != Util.C_ARRAY) { numOfParams++; if (nextChar == Util.C_RESOLVED) while ((nextChar = methodDescriptor[++index]) != Util.C_NAME_END){/*empty*/} } } // Ignore synthetic argument for member types or enum types. int startIndex = 0; if (method.isConstructor()) { if (isMemberType() && !isStatic()) { // enclosing type startIndex++; } if (isEnum()) { // synthetic arguments (String, int) startIndex += 2; } } int size = numOfParams - startIndex; if (size > 0) { parameters = new TypeBinding[size]; if (this.environment.globalOptions.storeAnnotations) paramAnnotations = new AnnotationBinding[size][]; index = 1; short visibleIdx = 0; int end = 0; // first character is always '(' so skip it for (int i = 0; i < numOfParams; i++) { while ((nextChar = methodDescriptor[++end]) == Util.C_ARRAY){/*empty*/} if (nextChar == Util.C_RESOLVED) while ((nextChar = methodDescriptor[++end]) != Util.C_NAME_END){/*empty*/} if (i >= startIndex) { // skip the synthetic arg if necessary // checking for param specific non-null default is not necessary here as no type arguments are present (application to params themselves is handled by ImplicitNullAnnotationVerifier) parameters[i - startIndex] = this.environment.getTypeFromSignature(methodDescriptor, index, end, false, this, missingTypeNames, walker.toMethodParameter(visibleIdx++)); // 'paramAnnotations' line up with 'parameters' // int parameter to method.getParameterAnnotations() include the synthetic arg if (paramAnnotations != null) paramAnnotations[i - startIndex] = createAnnotations(method.getParameterAnnotations(i - startIndex, this.fileName), this.environment, missingTypeNames); } index = end + 1; } } char[][] exceptionTypes = method.getExceptionTypeNames(); if (exceptionTypes != null) { size = exceptionTypes.length; if (size > 0) { exceptions = new ReferenceBinding[size]; for (int i = 0; i < size; i++) exceptions[i] = this.environment.getTypeFromConstantPoolName(exceptionTypes[i], 0, -1, false, missingTypeNames, walker.toThrows(i)); } } if (!method.isConstructor()) returnType = this.environment.getTypeFromSignature(methodDescriptor, index + 1, -1, false, this, missingTypeNames, walker.toMethodReturn()); // index is currently pointing at the ')' final int argumentNamesLength = argumentNames == null ? 0 : argumentNames.length; if (startIndex > 0 && argumentNamesLength > 0) { // We'll have to slice the starting arguments off if (startIndex >= argumentNamesLength) { argumentNames = Binding.NO_PARAMETER_NAMES; // We know nothing about the argument names } else { char[][] slicedArgumentNames = new char[argumentNamesLength - startIndex][]; System.arraycopy(argumentNames, startIndex, slicedArgumentNames, 0, argumentNamesLength - startIndex); argumentNames = slicedArgumentNames; } } } else { if (sourceLevel >= ClassFileConstants.JDK1_8) { // below 1.8, external annotations will be attached later walker = binaryType.enrichWithExternalAnnotationsFor(walker, method, this.environment); } methodModifiers |= ExtraCompilerModifiers.AccGenericSignature; // MethodTypeSignature = ParameterPart(optional) '(' TypeSignatures ')' return_typeSignature ['^' TypeSignature (optional)] SignatureWrapper wrapper = new SignatureWrapper(methodSignature, use15specifics); if (wrapper.signature[wrapper.start] == Util.C_GENERIC_START) { // <A::Ljava/lang/annotation/Annotation;>(Ljava/lang/Class<TA;>;)TA; // ParameterPart = '<' ParameterSignature(s) '>' wrapper.start++; // skip '<' typeVars = createTypeVariables(wrapper, false, missingTypeNames, walker, false/*class*/); wrapper.start++; // skip '>' } if (wrapper.signature[wrapper.start] == Util.C_PARAM_START) { wrapper.start++; // skip '(' if (wrapper.signature[wrapper.start] == Util.C_PARAM_END) { wrapper.start++; // skip ')' } else { java.util.ArrayList types = new java.util.ArrayList(2); short rank = 0; while (wrapper.signature[wrapper.start] != Util.C_PARAM_END) { IBinaryAnnotation[] binaryParameterAnnotations = method.getParameterAnnotations(rank, this.fileName); ITypeAnnotationWalker updatedWalker = NonNullDefaultAwareTypeAnnotationWalker.updateWalkerForParamNonNullDefault(walker, getNullDefaultFrom(binaryParameterAnnotations), this.environment); types.add(this.environment.getTypeFromTypeSignature(wrapper, typeVars, this, missingTypeNames, updatedWalker.toMethodParameter(rank))); rank++; } wrapper.start++; // skip ')' int numParam = types.size(); parameters = new TypeBinding[numParam]; types.toArray(parameters); if (this.environment.globalOptions.storeAnnotations) { paramAnnotations = new AnnotationBinding[numParam][]; for (int i = 0; i < numParam; i++) paramAnnotations[i] = createAnnotations(method.getParameterAnnotations(i, this.fileName), this.environment, missingTypeNames); } } } // always retrieve return type (for constructors, its V for void - will be ignored) returnType = this.environment.getTypeFromTypeSignature(wrapper, typeVars, this, missingTypeNames, walker.toMethodReturn()); if (!wrapper.atEnd() && wrapper.signature[wrapper.start] == Util.C_EXCEPTION_START) { // attempt to find each exception if it exists in the cache (otherwise - resolve it when requested) java.util.ArrayList types = new java.util.ArrayList(2); int excRank = 0; do { wrapper.start++; // skip '^' types.add(this.environment.getTypeFromTypeSignature(wrapper, typeVars, this, missingTypeNames, walker.toThrows(excRank++))); } while (!wrapper.atEnd() && wrapper.signature[wrapper.start] == Util.C_EXCEPTION_START); exceptions = new ReferenceBinding[types.size()]; types.toArray(exceptions); } else { // get the exceptions the old way char[][] exceptionTypes = method.getExceptionTypeNames(); if (exceptionTypes != null) { int size = exceptionTypes.length; if (size > 0) { exceptions = new ReferenceBinding[size]; for (int i = 0; i < size; i++) exceptions[i] = this.environment.getTypeFromConstantPoolName(exceptionTypes[i], 0, -1, false, missingTypeNames, walker.toThrows(i)); } } } } MethodBinding result = method.isConstructor() ? new MethodBinding(methodModifiers, parameters, exceptions, this) : new MethodBinding(methodModifiers, method.getSelector(), returnType, parameters, exceptions, this); IBinaryAnnotation[] receiverAnnotations = walker.toReceiver().getAnnotationsAtCursor(this.id, false); if (receiverAnnotations != null && receiverAnnotations.length > 0) { result.receiver = this.environment.createAnnotatedType(this, createAnnotations(receiverAnnotations, this.environment, missingTypeNames)); } boolean forceStoreAnnotations = !this.environment.globalOptions.storeAnnotations && (this.environment.globalOptions.sourceLevel >= ClassFileConstants.JDK9 && method instanceof MethodInfoWithAnnotations && (method.getTagBits() & TagBits.AnnotationDeprecated) != 0); if (this.environment.globalOptions.storeAnnotations || forceStoreAnnotations) { if (forceStoreAnnotations) storedAnnotations(true, true); // for Java 9 @Deprecated we need to force storing annotations IBinaryAnnotation[] annotations = method.getAnnotations(); if (method.isConstructor()) { IBinaryAnnotation[] tAnnotations = walker.toMethodReturn().getAnnotationsAtCursor(this.id, false); result.setTypeAnnotations(createAnnotations(tAnnotations, this.environment, missingTypeNames)); } result.setAnnotations( createAnnotations(annotations, this.environment, missingTypeNames), paramAnnotations, isAnnotationType() ? convertMemberValue(method.getDefaultValue(), this.environment, missingTypeNames, true) : null, this.environment); } if (argumentNames != null) result.parameterNames = argumentNames; if (use15specifics) result.tagBits |= method.getTagBits(); result.typeVariables = typeVars; // fixup the declaring element of all type variables for (int i = 0, length = typeVars.length; i < length; i++) this.environment.typeSystem.fixTypeVariableDeclaringElement(typeVars[i], result); return result; }
Create method bindings for binary type, filtering out and synthetics As some iMethods may be ignored in this process we return the matching array of those iMethods for which MethodBindings have been created; indices match those in this.methods.
/** * Create method bindings for binary type, filtering out <clinit> and synthetics * As some iMethods may be ignored in this process we return the matching array of those * iMethods for which MethodBindings have been created; indices match those in this.methods. */
private IBinaryMethod[] createMethods(IBinaryMethod[] iMethods, IBinaryType binaryType, long sourceLevel, char[][][] missingTypeNames) { if (!isPrototype()) throw new IllegalStateException(); boolean save = this.environment.mayTolerateMissingType; this.environment.mayTolerateMissingType = true; try { int total = 0, initialTotal = 0, iClinit = -1; int[] toSkip = null; if (iMethods != null) { total = initialTotal = iMethods.length; boolean keepBridgeMethods = sourceLevel < ClassFileConstants.JDK1_5; // https://bugs.eclipse.org/bugs/show_bug.cgi?id=330347 for (int i = total; --i >= 0;) { IBinaryMethod method = iMethods[i]; if ((method.getModifiers() & ClassFileConstants.AccSynthetic) != 0) { if (keepBridgeMethods && (method.getModifiers() & ClassFileConstants.AccBridge) != 0) continue; // want to see bridge methods as real methods // discard synthetics methods if (toSkip == null) toSkip = new int[iMethods.length]; toSkip[i] = -1; total--; } else if (iClinit == -1) { char[] methodName = method.getSelector(); if (methodName.length == 8 && methodName[0] == Util.C_GENERIC_START) { // discard <clinit> iClinit = i; total--; } } } } if (total == 0) { this.methods = Binding.NO_METHODS; return NO_BINARY_METHODS; } boolean hasRestrictedAccess = hasRestrictedAccess(); MethodBinding[] methods1 = new MethodBinding[total]; if (total == initialTotal) { for (int i = 0; i < initialTotal; i++) { MethodBinding method = createMethod(iMethods[i], binaryType, sourceLevel, missingTypeNames); if (hasRestrictedAccess) method.modifiers |= ExtraCompilerModifiers.AccRestrictedAccess; methods1[i] = method; } this.methods = methods1; return iMethods; } else { IBinaryMethod[] mappedBinaryMethods = new IBinaryMethod[total]; for (int i = 0, index = 0; i < initialTotal; i++) { if (iClinit != i && (toSkip == null || toSkip[i] != -1)) { MethodBinding method = createMethod(iMethods[i], binaryType, sourceLevel, missingTypeNames); if (hasRestrictedAccess) method.modifiers |= ExtraCompilerModifiers.AccRestrictedAccess; mappedBinaryMethods[index] = iMethods[i]; methods1[index++] = method; } } this.methods = methods1; return mappedBinaryMethods; } } finally { this.environment.mayTolerateMissingType = save; } } private TypeVariableBinding[] createTypeVariables(SignatureWrapper wrapper, boolean assignVariables, char[][][] missingTypeNames, ITypeAnnotationWalker walker, boolean isClassTypeParameter) { if (!isPrototype()) throw new IllegalStateException(); // detect all type variables first char[] typeSignature = wrapper.signature; int depth = 0, length = typeSignature.length; int rank = 0; ArrayList variables = new ArrayList(1); depth = 0; boolean pendingVariable = true; createVariables: { for (int i = 1; i < length; i++) { switch(typeSignature[i]) { case Util.C_GENERIC_START : depth++; break; case Util.C_GENERIC_END : if (--depth < 0) break createVariables; break; case Util.C_NAME_END : if ((depth == 0) && (i +1 < length) && (typeSignature[i+1] != Util.C_COLON)) pendingVariable = true; break; default: if (pendingVariable) { pendingVariable = false; int colon = CharOperation.indexOf(Util.C_COLON, typeSignature, i); char[] variableName = CharOperation.subarray(typeSignature, i, colon); TypeVariableBinding typeVariable = new TypeVariableBinding(variableName, this, rank, this.environment); AnnotationBinding [] annotations = BinaryTypeBinding.createAnnotations(walker.toTypeParameter(isClassTypeParameter, rank++).getAnnotationsAtCursor(0, false), this.environment, missingTypeNames); if (annotations != null && annotations != Binding.NO_ANNOTATIONS) typeVariable.setTypeAnnotations(annotations, this.environment.globalOptions.isAnnotationBasedNullAnalysisEnabled); variables.add(typeVariable); } } } } // initialize type variable bounds - may refer to forward variables TypeVariableBinding[] result; variables.toArray(result = new TypeVariableBinding[rank]); // when creating the type variables for a type, the type must remember them before initializing each variable // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=163680 if (assignVariables) this.typeVariables = result; for (int i = 0; i < rank; i++) { initializeTypeVariable(result[i], result, wrapper, missingTypeNames, walker.toTypeParameterBounds(isClassTypeParameter, i)); if (this.externalAnnotationStatus.isPotentiallyUnannotatedLib() && result[i].hasNullTypeAnnotations()) this.externalAnnotationStatus = ExternalAnnotationStatus.TYPE_IS_ANNOTATED; } return result; } /* Answer the receiver's enclosing type... null if the receiver is a top level type. * * NOTE: enclosingType of a binary type is resolved when needed */ @Override public ReferenceBinding enclosingType() { // should not delegate to prototype. if ((this.tagBits & TagBits.HasUnresolvedEnclosingType) == 0) return this.enclosingType; // finish resolving the type this.enclosingType = (ReferenceBinding) resolveType(this.enclosingType, this.environment, false /* no raw conversion */); this.tagBits &= ~TagBits.HasUnresolvedEnclosingType; return this.enclosingType; } // NOTE: the type of each field of a binary type is resolved when needed @Override public FieldBinding[] fields() { if (!isPrototype()) { return this.fields = this.prototype.fields(); } if ((this.tagBits & TagBits.AreFieldsComplete) != 0) return this.fields; // lazily sort fields if ((this.tagBits & TagBits.AreFieldsSorted) == 0) { int length = this.fields.length; if (length > 1) ReferenceBinding.sortFields(this.fields, 0, length); this.tagBits |= TagBits.AreFieldsSorted; } for (int i = this.fields.length; --i >= 0;) resolveTypeFor(this.fields[i]); this.tagBits |= TagBits.AreFieldsComplete; return this.fields; } private MethodBinding findMethod(char[] methodDescriptor, char[][][] missingTypeNames) { if (!isPrototype()) throw new IllegalStateException(); int index = -1; while (methodDescriptor[++index] != Util.C_PARAM_START) { // empty } char[] selector = new char[index]; System.arraycopy(methodDescriptor, 0, selector, 0, index); TypeBinding[] parameters = Binding.NO_PARAMETERS; int numOfParams = 0; char nextChar; int paramStart = index; while ((nextChar = methodDescriptor[++index]) != Util.C_PARAM_END) { if (nextChar != Util.C_ARRAY) { numOfParams++; if (nextChar == Util.C_RESOLVED) while ((nextChar = methodDescriptor[++index]) != Util.C_NAME_END){/*empty*/} } } if (numOfParams > 0) { parameters = new TypeBinding[numOfParams]; index = paramStart + 1; int end = paramStart; // first character is always '(' so skip it for (int i = 0; i < numOfParams; i++) { while ((nextChar = methodDescriptor[++end]) == Util.C_ARRAY){/*empty*/} if (nextChar == Util.C_RESOLVED) while ((nextChar = methodDescriptor[++end]) != Util.C_NAME_END){/*empty*/} // not interested in type annotations, type will be used for comparison only, and erasure() is used if needed TypeBinding param = this.environment.getTypeFromSignature(methodDescriptor, index, end, false, this, missingTypeNames, ITypeAnnotationWalker.EMPTY_ANNOTATION_WALKER); if (param instanceof UnresolvedReferenceBinding) { param = resolveType(param, this.environment, true /* raw conversion */); } parameters[i] = param; index = end + 1; } } int parameterLength = parameters.length; MethodBinding[] methods2 = this.enclosingType.getMethods(selector, parameterLength); // find matching method using parameters loop: for (int i = 0, max = methods2.length; i < max; i++) { MethodBinding currentMethod = methods2[i]; TypeBinding[] parameters2 = currentMethod.parameters; int currentMethodParameterLength = parameters2.length; if (parameterLength == currentMethodParameterLength) { for (int j = 0; j < currentMethodParameterLength; j++) { if (TypeBinding.notEquals(parameters[j], parameters2[j]) && TypeBinding.notEquals(parameters[j].erasure(), parameters2[j].erasure())) { continue loop; } } return currentMethod; } } return null; }
See Also:
  • genericTypeSignature.genericTypeSignature()
/** * @see org.eclipse.jdt.internal.compiler.lookup.TypeBinding#genericTypeSignature() */
@Override public char[] genericTypeSignature() { if (!isPrototype()) return this.prototype.computeGenericTypeSignature(this.typeVariables); return computeGenericTypeSignature(this.typeVariables); } //NOTE: the return type, arg & exception types of each method of a binary type are resolved when needed @Override public MethodBinding getExactConstructor(TypeBinding[] argumentTypes) { if (!isPrototype()) return this.prototype.getExactConstructor(argumentTypes); // lazily sort methods if ((this.tagBits & TagBits.AreMethodsSorted) == 0) { int length = this.methods.length; if (length > 1) ReferenceBinding.sortMethods(this.methods, 0, length); this.tagBits |= TagBits.AreMethodsSorted; } int argCount = argumentTypes.length; long range; if ((range = ReferenceBinding.binarySearch(TypeConstants.INIT, this.methods)) >= 0) { nextMethod: for (int imethod = (int)range, end = (int)(range >> 32); imethod <= end; imethod++) { MethodBinding method = this.methods[imethod]; if (method.parameters.length == argCount) { resolveTypesFor(method); TypeBinding[] toMatch = method.parameters; for (int iarg = 0; iarg < argCount; iarg++) if (TypeBinding.notEquals(toMatch[iarg], argumentTypes[iarg])) continue nextMethod; return method; } } } return null; } //NOTE: the return type, arg & exception types of each method of a binary type are resolved when needed //searches up the hierarchy as long as no potential (but not exact) match was found. @Override public MethodBinding getExactMethod(char[] selector, TypeBinding[] argumentTypes, CompilationUnitScope refScope) { // sender from refScope calls recordTypeReference(this) if (!isPrototype()) return this.prototype.getExactMethod(selector, argumentTypes, refScope); // lazily sort methods if ((this.tagBits & TagBits.AreMethodsSorted) == 0) { int length = this.methods.length; if (length > 1) ReferenceBinding.sortMethods(this.methods, 0, length); this.tagBits |= TagBits.AreMethodsSorted; } int argCount = argumentTypes.length; boolean foundNothing = true; long range; if ((range = ReferenceBinding.binarySearch(selector, this.methods)) >= 0) { nextMethod: for (int imethod = (int)range, end = (int)(range >> 32); imethod <= end; imethod++) { MethodBinding method = this.methods[imethod]; foundNothing = false; // inner type lookups must know that a method with this name exists if (method.parameters.length == argCount) { resolveTypesFor(method); TypeBinding[] toMatch = method.parameters; for (int iarg = 0; iarg < argCount; iarg++) if (TypeBinding.notEquals(toMatch[iarg], argumentTypes[iarg])) continue nextMethod; return method; } } } if (foundNothing) { if (isInterface()) { if (superInterfaces().length == 1) { // ensure superinterfaces are resolved before checking if (refScope != null) refScope.recordTypeReference(this.superInterfaces[0]); return this.superInterfaces[0].getExactMethod(selector, argumentTypes, refScope); } } else if (superclass() != null) { // ensure superclass is resolved before checking if (refScope != null) refScope.recordTypeReference(this.superclass); return this.superclass.getExactMethod(selector, argumentTypes, refScope); } } return null; } //NOTE: the type of a field of a binary type is resolved when needed @Override public FieldBinding getField(char[] fieldName, boolean needResolve) { if (!isPrototype()) return this.prototype.getField(fieldName, needResolve); // lazily sort fields if ((this.tagBits & TagBits.AreFieldsSorted) == 0) { int length = this.fields.length; if (length > 1) ReferenceBinding.sortFields(this.fields, 0, length); this.tagBits |= TagBits.AreFieldsSorted; } FieldBinding field = ReferenceBinding.binarySearch(fieldName, this.fields); return needResolve && field != null ? resolveTypeFor(field) : field; }
Rewrite of default memberTypes() to avoid resolving eagerly all member types when one is requested
/** * Rewrite of default memberTypes() to avoid resolving eagerly all member types when one is requested */
@Override public ReferenceBinding getMemberType(char[] typeName) { if (!isPrototype()) { ReferenceBinding memberType = this.prototype.getMemberType(typeName); return memberType == null ? null : this.environment.createMemberType(memberType, this); } ReferenceBinding[] members = maybeSortedMemberTypes(); // do not try to binary search while we are still resolving and the array is not necessarily sorted if (!this.memberTypesSorted) { for (int i = members.length; --i >= 0;) { ReferenceBinding memberType = members[i]; if (memberType instanceof UnresolvedReferenceBinding) { char[] name = memberType.sourceName; // source name is qualified with enclosing type name int prefixLength = this.compoundName[this.compoundName.length - 1].length + 1; // enclosing$ if (name.length == (prefixLength + typeName.length)) // enclosing $ typeName if (CharOperation.fragmentEquals(typeName, name, prefixLength, true)) // only check trailing portion return members[i] = (ReferenceBinding) resolveType(memberType, this.environment, false /* no raw conversion for now */); } else if (CharOperation.equals(typeName, memberType.sourceName)) { return memberType; } } return null; } int memberTypeIndex = ReferenceBinding.binarySearch(typeName, members); if (memberTypeIndex >= 0) { return members[memberTypeIndex]; } return null; } // NOTE: the return type, arg & exception types of each method of a binary type are resolved when needed @Override public MethodBinding[] getMethods(char[] selector) { if (!isPrototype()) return this.prototype.getMethods(selector); if ((this.tagBits & TagBits.AreMethodsComplete) != 0) { long range; if ((range = ReferenceBinding.binarySearch(selector, this.methods)) >= 0) { int start = (int) range, end = (int) (range >> 32); int length = end - start + 1; if ((this.tagBits & TagBits.AreMethodsComplete) != 0) { // simply clone method subset MethodBinding[] result; System.arraycopy(this.methods, start, result = new MethodBinding[length], 0, length); return result; } } return Binding.NO_METHODS; } // lazily sort methods if ((this.tagBits & TagBits.AreMethodsSorted) == 0) { int length = this.methods.length; if (length > 1) ReferenceBinding.sortMethods(this.methods, 0, length); this.tagBits |= TagBits.AreMethodsSorted; } long range; if ((range = ReferenceBinding.binarySearch(selector, this.methods)) >= 0) { int start = (int) range, end = (int) (range >> 32); int length = end - start + 1; MethodBinding[] result = new MethodBinding[length]; // iterate methods to resolve them for (int i = start, index = 0; i <= end; i++, index++) result[index] = resolveTypesFor(this.methods[i]); return result; } return Binding.NO_METHODS; } // Answer methods named selector, which take no more than the suggestedParameterLength. // The suggested parameter length is optional and may not be guaranteed by every type. @Override public MethodBinding[] getMethods(char[] selector, int suggestedParameterLength) { if (!isPrototype()) return this.prototype.getMethods(selector, suggestedParameterLength); if ((this.tagBits & TagBits.AreMethodsComplete) != 0) return getMethods(selector); // lazily sort methods if ((this.tagBits & TagBits.AreMethodsSorted) == 0) { int length = this.methods.length; if (length > 1) ReferenceBinding.sortMethods(this.methods, 0, length); this.tagBits |= TagBits.AreMethodsSorted; } long range; if ((range = ReferenceBinding.binarySearch(selector, this.methods)) >= 0) { int start = (int) range, end = (int) (range >> 32); int length = end - start + 1; int count = 0; for (int i = start; i <= end; i++) { if (this.methods[i].doesParameterLengthMatch(suggestedParameterLength)) count++; } if (count == 0) { MethodBinding[] result = new MethodBinding[length]; // iterate methods to resolve them for (int i = start, index = 0; i <= end; i++) result[index++] = resolveTypesFor(this.methods[i]); return result; } else { MethodBinding[] result = new MethodBinding[count]; // iterate methods to resolve them for (int i = start, index = 0; i <= end; i++) { if (this.methods[i].doesParameterLengthMatch(suggestedParameterLength)) result[index++] = resolveTypesFor(this.methods[i]); } return result; } } return Binding.NO_METHODS; } @Override public boolean hasMemberTypes() { if (!isPrototype()) return this.prototype.hasMemberTypes(); return this.memberTypes.length > 0; } // NOTE: member types of binary types are resolved when needed @Override public TypeVariableBinding getTypeVariable(char[] variableName) { if (!isPrototype()) return this.prototype.getTypeVariable(variableName); TypeVariableBinding variable = super.getTypeVariable(variableName); variable.resolve(); return variable; } @Override public boolean hasTypeBit(int bit) { if (!isPrototype()) return this.prototype.hasTypeBit(bit); // ensure hierarchy is resolved, which will propagate bits down to us boolean wasToleratingMissingTypeProcessingAnnotations = this.environment.mayTolerateMissingType; this.environment.mayTolerateMissingType = true; try { superclass(); superInterfaces(); } finally { this.environment.mayTolerateMissingType = wasToleratingMissingTypeProcessingAnnotations; } return (this.typeBits & bit) != 0; } private void initializeTypeVariable(TypeVariableBinding variable, TypeVariableBinding[] existingVariables, SignatureWrapper wrapper, char[][][] missingTypeNames, ITypeAnnotationWalker walker) { if (!isPrototype()) throw new IllegalStateException(); // ParameterSignature = Identifier ':' TypeSignature // or Identifier ':' TypeSignature(optional) InterfaceBound(s) // InterfaceBound = ':' TypeSignature int colon = CharOperation.indexOf(Util.C_COLON, wrapper.signature, wrapper.start); wrapper.start = colon + 1; // skip name + ':' ReferenceBinding type, firstBound = null; short rank = 0; if (wrapper.signature[wrapper.start] == Util.C_COLON) { type = this.environment.getResolvedJavaBaseType(TypeConstants.JAVA_LANG_OBJECT, null); rank++; } else { TypeBinding typeFromTypeSignature = this.environment.getTypeFromTypeSignature(wrapper, existingVariables, this, missingTypeNames, walker.toTypeBound(rank++)); if (typeFromTypeSignature instanceof ReferenceBinding) { type = (ReferenceBinding) typeFromTypeSignature; } else { // this should only happen if the signature is corrupted (332423) type = this.environment.getResolvedJavaBaseType(TypeConstants.JAVA_LANG_OBJECT, null); } firstBound = type; } // variable is visible to its bounds variable.modifiers |= ExtraCompilerModifiers.AccUnresolved; variable.setSuperClass(type); ReferenceBinding[] bounds = null; if (wrapper.signature[wrapper.start] == Util.C_COLON) { java.util.ArrayList types = new java.util.ArrayList(2); do { wrapper.start++; // skip ':' types.add(this.environment.getTypeFromTypeSignature(wrapper, existingVariables, this, missingTypeNames, walker.toTypeBound(rank++))); } while (wrapper.signature[wrapper.start] == Util.C_COLON); bounds = new ReferenceBinding[types.size()]; types.toArray(bounds); } variable.setSuperInterfaces(bounds == null ? Binding.NO_SUPERINTERFACES : bounds); if (firstBound == null) { firstBound = variable.superInterfaces.length == 0 ? null : variable.superInterfaces[0]; } variable.setFirstBound(firstBound); }
Returns true if a type is identical to another one, or for generic types, true if compared to its raw type.
/** * Returns true if a type is identical to another one, * or for generic types, true if compared to its raw type. */
@Override public boolean isEquivalentTo(TypeBinding otherType) { if (TypeBinding.equalsEquals(this, otherType)) return true; if (otherType == null) return false; switch(otherType.kind()) { case Binding.WILDCARD_TYPE : case Binding.INTERSECTION_TYPE : return ((WildcardBinding) otherType).boundCheck(this); case Binding.PARAMETERIZED_TYPE: /* With the hybrid 1.4/1.5+ projects modes, while establishing type equivalence, we need to be prepared for a type such as Map appearing in one of three forms: As (a) a ParameterizedTypeBinding e.g Map<String, String>, (b) as RawTypeBinding Map#RAW and finally (c) as a BinaryTypeBinding When the usage of a type lacks type parameters, whether we land up with the raw form or not depends on whether the underlying type was "seen to be" a generic type in the particular build environment or not. See https://bugs.eclipse.org/bugs/show_bug.cgi?id=186565 && https://bugs.eclipse.org/bugs/show_bug.cgi?id=328827 */ case Binding.RAW_TYPE : return TypeBinding.equalsEquals(otherType.erasure(), this); } return false; } @Override public boolean isGenericType() { if (!isPrototype()) return this.prototype.isGenericType(); return this.typeVariables != Binding.NO_TYPE_VARIABLES; } @Override public boolean isHierarchyConnected() { if (!isPrototype()) return this.prototype.isHierarchyConnected(); return (this.tagBits & (TagBits.HasUnresolvedSuperclass | TagBits.HasUnresolvedSuperinterfaces)) == 0; } @Override public boolean isRepeatableAnnotationType() { if (!isPrototype()) throw new IllegalStateException(); return this.containerAnnotationType != null; } @Override public int kind() { if (!isPrototype()) return this.prototype.kind(); if (this.typeVariables != Binding.NO_TYPE_VARIABLES) return Binding.GENERIC_TYPE; return Binding.TYPE; } // NOTE: member types of binary types are resolved when needed @Override public ReferenceBinding[] memberTypes() { if (!isPrototype()) { if ((this.tagBits & TagBits.HasUnresolvedMemberTypes) == 0) return this.memberTypes; /* * The members obtained from the prototype are already sorted * thus we can safely assume that our local copy of the member types * is sorted, too. */ ReferenceBinding [] members = this.prototype.memberTypes(); int memberTypesLength = members == null ? 0 : members.length; if (memberTypesLength > 0) { this.memberTypes = new ReferenceBinding[memberTypesLength]; for (int i = 0; i < memberTypesLength; i++) this.memberTypes[i] = this.environment.createMemberType(members[i], this); } this.tagBits &= ~TagBits.HasUnresolvedMemberTypes; this.memberTypesSorted = true; return this.memberTypes; } if ((this.tagBits & TagBits.HasUnresolvedMemberTypes) == 0) { return maybeSortedMemberTypes(); } for (int i = this.memberTypes.length; --i >= 0;) this.memberTypes[i] = (ReferenceBinding) resolveType(this.memberTypes[i], this.environment, false /* no raw conversion for now */); this.tagBits &= ~TagBits.HasUnresolvedMemberTypes; return maybeSortedMemberTypes(); } private ReferenceBinding[] maybeSortedMemberTypes() { // do not try to sort while we are still resolving if ((this.tagBits & TagBits.HasUnresolvedMemberTypes) != 0) { return this.memberTypes; } if (!this.memberTypesSorted) { // lazily sort member types int length = this.memberTypes.length; if (length > 1) sortMemberTypes(this.memberTypes, 0, length); this.memberTypesSorted = true; } return this.memberTypes; } // NOTE: the return type, arg & exception types of each method of a binary type are resolved when needed @Override public MethodBinding[] methods() { if (!isPrototype()) { return this.methods = this.prototype.methods(); } if ((this.tagBits & TagBits.AreMethodsComplete) != 0) return this.methods; // lazily sort methods if ((this.tagBits & TagBits.AreMethodsSorted) == 0) { int length = this.methods.length; if (length > 1) ReferenceBinding.sortMethods(this.methods, 0, length); this.tagBits |= TagBits.AreMethodsSorted; } for (int i = this.methods.length; --i >= 0;) resolveTypesFor(this.methods[i]); this.tagBits |= TagBits.AreMethodsComplete; return this.methods; } @Override public void setHierarchyCheckDone() { this.tagBits |= TagBits.BeginHierarchyCheck | TagBits.EndHierarchyCheck; } @Override public TypeBinding prototype() { return this.prototype; } private boolean isPrototype() { return this == this.prototype; //$IDENTITY-COMPARISON$ } @Override public ReferenceBinding containerAnnotationType() { if (!isPrototype()) throw new IllegalStateException(); if (this.containerAnnotationType instanceof UnresolvedReferenceBinding) { this.containerAnnotationType = (ReferenceBinding) BinaryTypeBinding.resolveType(this.containerAnnotationType, this.environment, false); } return this.containerAnnotationType; } private FieldBinding resolveTypeFor(FieldBinding field) { if (!isPrototype()) return this.prototype.resolveTypeFor(field); if ((field.modifiers & ExtraCompilerModifiers.AccUnresolved) == 0) return field; TypeBinding resolvedType = resolveType(field.type, this.environment, true /* raw conversion */); field.type = resolvedType; if ((resolvedType.tagBits & TagBits.HasMissingType) != 0) { field.tagBits |= TagBits.HasMissingType; } field.modifiers &= ~ExtraCompilerModifiers.AccUnresolved; return field; } MethodBinding resolveTypesFor(MethodBinding method) { if (!isPrototype()) return this.prototype.resolveTypesFor(method); if ((method.modifiers & ExtraCompilerModifiers.AccUnresolved) == 0) return method; if (!method.isConstructor()) { TypeBinding resolvedType = resolveType(method.returnType, this.environment, true /* raw conversion */); method.returnType = resolvedType; if ((resolvedType.tagBits & TagBits.HasMissingType) != 0) { method.tagBits |= TagBits.HasMissingType; } } for (int i = method.parameters.length; --i >= 0;) { TypeBinding resolvedType = resolveType(method.parameters[i], this.environment, true /* raw conversion */); method.parameters[i] = resolvedType; if ((resolvedType.tagBits & TagBits.HasMissingType) != 0) { method.tagBits |= TagBits.HasMissingType; } } for (int i = method.thrownExceptions.length; --i >= 0;) { ReferenceBinding resolvedType = (ReferenceBinding) resolveType(method.thrownExceptions[i], this.environment, true /* raw conversion */); method.thrownExceptions[i] = resolvedType; if ((resolvedType.tagBits & TagBits.HasMissingType) != 0) { method.tagBits |= TagBits.HasMissingType; } } for (int i = method.typeVariables.length; --i >= 0;) { method.typeVariables[i].resolve(); } method.modifiers &= ~ExtraCompilerModifiers.AccUnresolved; return method; } @Override AnnotationBinding[] retrieveAnnotations(Binding binding) { if (!isPrototype()) return this.prototype.retrieveAnnotations(binding); return AnnotationBinding.addStandardAnnotations(super.retrieveAnnotations(binding), binding.getAnnotationTagBits(), this.environment); } @Override public void setContainerAnnotationType(ReferenceBinding value) { if (!isPrototype()) throw new IllegalStateException(); this.containerAnnotationType = value; } @Override public void tagAsHavingDefectiveContainerType() { if (!isPrototype()) throw new IllegalStateException(); if (this.containerAnnotationType != null && this.containerAnnotationType.isValidBinding()) this.containerAnnotationType = new ProblemReferenceBinding(this.containerAnnotationType.compoundName, this.containerAnnotationType, ProblemReasons.DefectiveContainerAnnotationType); } @Override SimpleLookupTable storedAnnotations(boolean forceInitialize, boolean forceStore) { if (!isPrototype()) return this.prototype.storedAnnotations(forceInitialize, forceStore); if (forceInitialize && this.storedAnnotations == null) { if (!this.environment.globalOptions.storeAnnotations && !forceStore) return null; // not supported during this compile this.storedAnnotations = new SimpleLookupTable(3); } return this.storedAnnotations; } //pre: null annotation analysis is enabled private void scanFieldForNullAnnotation(IBinaryField field, FieldBinding fieldBinding, boolean isEnum, ITypeAnnotationWalker externalAnnotationWalker) { if (!isPrototype()) throw new IllegalStateException(); if (isEnum && (field.getModifiers() & ClassFileConstants.AccEnum) != 0) { fieldBinding.tagBits |= TagBits.AnnotationNonNull; return; // we know it's nonnull, no need to look for null *annotations* on enum constants. } if (!CharOperation.equals(this.fPackage.compoundName, TypeConstants.JAVA_LANG_ANNOTATION) // avoid dangerous re-entry via usesNullTypeAnnotations() && this.environment.usesNullTypeAnnotations()) { TypeBinding fieldType = fieldBinding.type; if (fieldType != null && !fieldType.isBaseType() && (fieldType.tagBits & TagBits.AnnotationNullMASK) == 0 && fieldType.acceptsNonNullDefault()) { int nullDefaultFromField = getNullDefaultFrom(field.getAnnotations()); if (nullDefaultFromField == Binding.NO_NULL_DEFAULT ? hasNonNullDefaultFor(DefaultLocationField, -1) : (nullDefaultFromField & DefaultLocationField) != 0) { fieldBinding.type = this.environment.createAnnotatedType(fieldType, new AnnotationBinding[] { this.environment.getNonNullAnnotation() }); } } return; // not using fieldBinding.tagBits when we have type annotations. } // global option is checked by caller if (fieldBinding.type == null || fieldBinding.type.isBaseType()) return; // null annotations are only applied to reference types boolean explicitNullness = false; IBinaryAnnotation[] annotations = externalAnnotationWalker != ITypeAnnotationWalker.EMPTY_ANNOTATION_WALKER ? externalAnnotationWalker.getAnnotationsAtCursor(fieldBinding.type.id, false) : field.getAnnotations(); if (annotations != null) { for (int i = 0; i < annotations.length; i++) { char[] annotationTypeName = annotations[i].getTypeName(); if (annotationTypeName[0] != Util.C_RESOLVED) continue; int typeBit = this.environment.getNullAnnotationBit(signature2qualifiedTypeName(annotationTypeName)); if (typeBit == TypeIds.BitNonNullAnnotation) { fieldBinding.tagBits |= TagBits.AnnotationNonNull; explicitNullness = true; break; } if (typeBit == TypeIds.BitNullableAnnotation) { fieldBinding.tagBits |= TagBits.AnnotationNullable; explicitNullness = true; break; } } } if (explicitNullness && this.externalAnnotationStatus.isPotentiallyUnannotatedLib()) this.externalAnnotationStatus = ExternalAnnotationStatus.TYPE_IS_ANNOTATED; if (!explicitNullness) { int nullDefaultFromField = getNullDefaultFrom(field.getAnnotations()); if (nullDefaultFromField == Binding.NO_NULL_DEFAULT ? hasNonNullDefaultFor(DefaultLocationField, -1) : (nullDefaultFromField & DefaultLocationField) != 0) { fieldBinding.tagBits |= TagBits.AnnotationNonNull; } } } private void scanMethodForNullAnnotation(IBinaryMethod method, MethodBinding methodBinding, ITypeAnnotationWalker externalAnnotationWalker, boolean useNullTypeAnnotations) { if (!isPrototype()) throw new IllegalStateException(); if (isEnum()) { int purpose = 0; if (CharOperation.equals(TypeConstants.VALUEOF, method.getSelector()) && methodBinding.parameters.length == 1 && methodBinding.parameters[0].id == TypeIds.T_JavaLangString) { purpose = SyntheticMethodBinding.EnumValueOf; } else if (CharOperation.equals(TypeConstants.VALUES, method.getSelector()) && methodBinding.parameters == Binding.NO_PARAMETERS) { purpose = SyntheticMethodBinding.EnumValues; } if (purpose != 0) { boolean needToDefer = this.environment.globalOptions.useNullTypeAnnotations == null; if (needToDefer) this.environment.deferredEnumMethods.add(methodBinding); else SyntheticMethodBinding.markNonNull(methodBinding, purpose, this.environment); return; } } // return: ITypeAnnotationWalker returnWalker = externalAnnotationWalker.toMethodReturn(); IBinaryAnnotation[] annotations = returnWalker != ITypeAnnotationWalker.EMPTY_ANNOTATION_WALKER ? returnWalker.getAnnotationsAtCursor(methodBinding.returnType.id, false) : method.getAnnotations(); if (annotations != null) { int methodDefaultNullness = NO_NULL_DEFAULT; for (int i = 0; i < annotations.length; i++) { char[] annotationTypeName = annotations[i].getTypeName(); if (annotationTypeName[0] != Util.C_RESOLVED) continue; int typeBit = this.environment.getNullAnnotationBit(signature2qualifiedTypeName(annotationTypeName)); if (typeBit == TypeIds.BitNonNullByDefaultAnnotation) { methodDefaultNullness |= getNonNullByDefaultValue(annotations[i], this.environment); } else if (typeBit == TypeIds.BitNonNullAnnotation) { methodBinding.tagBits |= TagBits.AnnotationNonNull; if (this.environment.usesNullTypeAnnotations()) { if (methodBinding.returnType != null && !methodBinding.returnType.hasNullTypeAnnotations()) { methodBinding.returnType = this.environment.createAnnotatedType(methodBinding.returnType, new AnnotationBinding[] { this.environment.getNonNullAnnotation() }); } } } else if (typeBit == TypeIds.BitNullableAnnotation) { methodBinding.tagBits |= TagBits.AnnotationNullable; if (this.environment.usesNullTypeAnnotations()) { if (methodBinding.returnType != null && !methodBinding.returnType.hasNullTypeAnnotations()) { methodBinding.returnType = this.environment.createAnnotatedType(methodBinding.returnType, new AnnotationBinding[] { this.environment.getNullableAnnotation() }); } } } } methodBinding.defaultNullness = methodDefaultNullness; } // parameters: TypeBinding[] parameters = methodBinding.parameters; int numVisibleParams = parameters.length; int numParamAnnotations = externalAnnotationWalker instanceof IMethodAnnotationWalker ? ((IMethodAnnotationWalker) externalAnnotationWalker).getParameterCount() : method.getAnnotatedParametersCount(); if (numParamAnnotations > 0) { for (int j = 0; j < numVisibleParams; j++) { if (numParamAnnotations > 0) { int startIndex = numParamAnnotations - numVisibleParams; ITypeAnnotationWalker parameterWalker = externalAnnotationWalker.toMethodParameter((short) (j+startIndex)); IBinaryAnnotation[] paramAnnotations = parameterWalker != ITypeAnnotationWalker.EMPTY_ANNOTATION_WALKER ? parameterWalker.getAnnotationsAtCursor(parameters[j].id, false) : method.getParameterAnnotations(j+startIndex, this.fileName); if (paramAnnotations != null) { for (int i = 0; i < paramAnnotations.length; i++) { char[] annotationTypeName = paramAnnotations[i].getTypeName(); if (annotationTypeName[0] != Util.C_RESOLVED) continue; int typeBit = this.environment.getNullAnnotationBit(signature2qualifiedTypeName(annotationTypeName)); if (typeBit == TypeIds.BitNonNullAnnotation) { if (methodBinding.parameterNonNullness == null) methodBinding.parameterNonNullness = new Boolean[numVisibleParams]; methodBinding.parameterNonNullness[j] = Boolean.TRUE; if (this.environment.usesNullTypeAnnotations()) { if (methodBinding.parameters[j] != null && !methodBinding.parameters[j].hasNullTypeAnnotations()) { methodBinding.parameters[j] = this.environment.createAnnotatedType( methodBinding.parameters[j], new AnnotationBinding[] { this.environment.getNonNullAnnotation() }); } } break; } else if (typeBit == TypeIds.BitNullableAnnotation) { if (methodBinding.parameterNonNullness == null) methodBinding.parameterNonNullness = new Boolean[numVisibleParams]; methodBinding.parameterNonNullness[j] = Boolean.FALSE; if (this.environment.usesNullTypeAnnotations()) { if (methodBinding.parameters[j] != null && !methodBinding.parameters[j].hasNullTypeAnnotations()) { methodBinding.parameters[j] = this.environment.createAnnotatedType( methodBinding.parameters[j], new AnnotationBinding[] { this.environment.getNullableAnnotation() }); } } break; } } } } } } if (useNullTypeAnnotations && this.externalAnnotationStatus.isPotentiallyUnannotatedLib()) { if (methodBinding.returnType.hasNullTypeAnnotations() || (methodBinding.tagBits & TagBits.AnnotationNullMASK) != 0 || methodBinding.parameterNonNullness != null) { this.externalAnnotationStatus = ExternalAnnotationStatus.TYPE_IS_ANNOTATED; } else { for (TypeBinding parameter : parameters) { if (parameter.hasNullTypeAnnotations()) { this.externalAnnotationStatus = ExternalAnnotationStatus.TYPE_IS_ANNOTATED; break; } } } } } // pre: null annotation analysis is enabled private void scanTypeForNullDefaultAnnotation(IBinaryType binaryType, PackageBinding packageBinding) { if (!isPrototype()) throw new IllegalStateException(); char[][] nonNullByDefaultAnnotationName = this.environment.getNonNullByDefaultAnnotationName(); if (nonNullByDefaultAnnotationName == null) return; // not well-configured to use null annotations if (CharOperation.equals(CharOperation.splitOn('/', binaryType.getName()), nonNullByDefaultAnnotationName)) return; // don't recursively apply @NNBD on @NNBD, neither directly nor via the 'enclosing' package-info.java for (String name : this.environment.globalOptions.nonNullByDefaultAnnotationSecondaryNames) if (CharOperation.toString(this.compoundName).equals(name)) return; IBinaryAnnotation[] annotations = binaryType.getAnnotations(); boolean isPackageInfo = CharOperation.equals(sourceName(), TypeConstants.PACKAGE_INFO_NAME); if (annotations != null) { int nullness = NO_NULL_DEFAULT; int length = annotations.length; for (int i = 0; i < length; i++) { char[] annotationTypeName = annotations[i].getTypeName(); if (annotationTypeName[0] != Util.C_RESOLVED) continue; int typeBit = this.environment.getNullAnnotationBit(signature2qualifiedTypeName(annotationTypeName)); if (typeBit == TypeIds.BitNonNullByDefaultAnnotation) { // using NonNullByDefault we need to inspect the details of the value() attribute: nullness |= getNonNullByDefaultValue(annotations[i], this.environment); } } this.defaultNullness = nullness; if (nullness != NO_NULL_DEFAULT) { if (isPackageInfo) packageBinding.setDefaultNullness(nullness); return; } } if (isPackageInfo) { // no default annotations found in package-info packageBinding.setDefaultNullness(Binding.NO_NULL_DEFAULT); return; } ReferenceBinding enclosingTypeBinding = this.enclosingType; if (enclosingTypeBinding != null) { if (setNullDefault(enclosingTypeBinding.getNullDefault())) return; } // no annotation found on the type or its enclosing types // check the package-info for default annotation if not already done before if (packageBinding.getDefaultNullness() == Binding.NO_NULL_DEFAULT && !isPackageInfo && ((this.typeBits & (TypeIds.BitAnyNullAnnotation)) == 0)) { // this will scan the annotations in package-info ReferenceBinding packageInfo = packageBinding.getType(TypeConstants.PACKAGE_INFO_NAME, packageBinding.enclosingModule); if (packageInfo == null) { packageBinding.setDefaultNullness(Binding.NO_NULL_DEFAULT); } } // no @NonNullByDefault at type level, check containing package: setNullDefault(packageBinding.getDefaultNullness()); } boolean setNullDefault(int newNullDefault) { this.defaultNullness = newNullDefault; if (newNullDefault != Binding.NO_NULL_DEFAULT) { return true; } return false; }
given an application of @NonNullByDefault convert the annotation argument (if any) into a bitvector a la Binding.NullnessDefaultMASK
/** given an application of @NonNullByDefault convert the annotation argument (if any) into a bitvector a la {@link Binding#NullnessDefaultMASK} */
// pre: null annotation analysis is enabled static int getNonNullByDefaultValue(IBinaryAnnotation annotation, LookupEnvironment environment) { char[] annotationTypeName = annotation.getTypeName(); char[][] typeName = signature2qualifiedTypeName(annotationTypeName); IBinaryElementValuePair[] elementValuePairs = annotation.getElementValuePairs(); if (elementValuePairs == null || elementValuePairs.length == 0 ) { // no argument: apply default default ReferenceBinding annotationType = environment.getType(typeName, environment.UnNamedModule); // TODO(SHMOD): null annotations from a module? if (annotationType == null) return 0; if (annotationType.isUnresolvedType()) annotationType = ((UnresolvedReferenceBinding) annotationType).resolve(environment, false); int nullness = evaluateTypeQualifierDefault(annotationType); if (nullness != 0) return nullness; MethodBinding[] annotationMethods = annotationType.methods(); if (annotationMethods != null && annotationMethods.length == 1) { Object value = annotationMethods[0].getDefaultValue(); return Annotation.nullLocationBitsFromAnnotationValue(value); } return DefaultLocationsForTrueValue; // custom unconfigurable NNBD } else if (elementValuePairs.length > 0) { // evaluate the contained EnumConstantSignatures: int nullness = 0; for (int i = 0; i < elementValuePairs.length; i++) nullness |= Annotation.nullLocationBitsFromAnnotationValue(elementValuePairs[i].getValue()); return nullness; } else { // empty argument: cancel all defaults from enclosing scopes return NULL_UNSPECIFIED_BY_DEFAULT; } } public static int evaluateTypeQualifierDefault(ReferenceBinding annotationType) { for (AnnotationBinding annotationOnAnnotation : annotationType.getAnnotations()) { if(CharOperation.equals(annotationOnAnnotation.getAnnotationType().compoundName[annotationOnAnnotation.type.compoundName.length-1], TYPE_QUALIFIER_DEFAULT)) { ElementValuePair[] pairs2 = annotationOnAnnotation.getElementValuePairs(); if(pairs2 != null) { for (ElementValuePair elementValuePair : pairs2) { char[] name = elementValuePair.getName(); if(CharOperation.equals(name, TypeConstants.VALUE)) { int nullness = 0; Object value = elementValuePair.getValue(); if(value instanceof Object[]) { Object[] values = (Object[]) value; for (Object value1 : values) nullness |= Annotation.nullLocationBitsFromElementTypeAnnotationValue(value1); } else { nullness |= Annotation.nullLocationBitsFromElementTypeAnnotationValue(value); } return nullness; } } } } } return 0; } static char[][] signature2qualifiedTypeName(char[] typeSignature) { return CharOperation.splitOn('/', typeSignature, 1, typeSignature.length-1); // cut off leading 'L' and trailing ';' } @Override int getNullDefault() { return this.defaultNullness; } private void scanTypeForContainerAnnotation(IBinaryType binaryType, char[][][] missingTypeNames) { if (!isPrototype()) throw new IllegalStateException(); IBinaryAnnotation[] annotations = binaryType.getAnnotations(); if (annotations != null) { int length = annotations.length; for (int i = 0; i < length; i++) { char[] annotationTypeName = annotations[i].getTypeName(); if (CharOperation.equals(annotationTypeName, ConstantPool.JAVA_LANG_ANNOTATION_REPEATABLE)) { IBinaryElementValuePair[] elementValuePairs = annotations[i].getElementValuePairs(); if (elementValuePairs != null && elementValuePairs.length == 1) { Object value = elementValuePairs[0].getValue(); if (value instanceof ClassSignature) { this.containerAnnotationType = (ReferenceBinding) this.environment.getTypeFromSignature(((ClassSignature)value).getTypeName(), 0, -1, false, null, missingTypeNames, ITypeAnnotationWalker.EMPTY_ANNOTATION_WALKER); } } break; } } } } /* Answer the receiver's superclass... null if the receiver is Object or an interface. * * NOTE: superclass of a binary type is resolved when needed */ @Override public ReferenceBinding superclass() { if (!isPrototype()) { return this.superclass = this.prototype.superclass(); } if ((this.tagBits & TagBits.HasUnresolvedSuperclass) == 0) return this.superclass; // finish resolving the type this.superclass = (ReferenceBinding) resolveType(this.superclass, this.environment, true /* raw conversion */); this.tagBits &= ~TagBits.HasUnresolvedSuperclass; if (this.superclass.problemId() == ProblemReasons.NotFound) { this.tagBits |= TagBits.HierarchyHasProblems; // propagate type inconsistency } else { // make super-type resolving recursive for propagating typeBits downwards boolean wasToleratingMissingTypeProcessingAnnotations = this.environment.mayTolerateMissingType; this.environment.mayTolerateMissingType = true; // https://bugs.eclipse.org/bugs/show_bug.cgi?id=360164 try { this.superclass.superclass(); this.superclass.superInterfaces(); } finally { this.environment.mayTolerateMissingType = wasToleratingMissingTypeProcessingAnnotations; } } this.typeBits |= (this.superclass.typeBits & TypeIds.InheritableBits); if ((this.typeBits & (TypeIds.BitAutoCloseable|TypeIds.BitCloseable)) != 0) // avoid the side-effects of hasTypeBit()! this.typeBits |= applyCloseableClassWhitelists(); detectCircularHierarchy(); return this.superclass; } private void breakLoop() { ReferenceBinding currentSuper = this.superclass; ReferenceBinding prevSuper = null; while (currentSuper != null) { if ((currentSuper.tagBits & TagBits.EndHierarchyCheck) != 0 && prevSuper instanceof BinaryTypeBinding) { ((BinaryTypeBinding)prevSuper).superclass = this.environment.getResolvedType(TypeConstants.JAVA_LANG_OBJECT, null); break; } currentSuper.tagBits |= TagBits.EndHierarchyCheck; prevSuper = currentSuper; currentSuper = currentSuper.superclass(); } } private void detectCircularHierarchy() { ReferenceBinding currentSuper = this.superclass; ReferenceBinding tempSuper = null; int count = 0; int skipCount = 20; while (currentSuper != null) { if (currentSuper.hasHierarchyCheckStarted()) break; if (TypeBinding.equalsEquals(currentSuper, this) || TypeBinding.equalsEquals(currentSuper, tempSuper)) { currentSuper.tagBits |= TagBits.HierarchyHasProblems; if (currentSuper.isBinaryBinding()) breakLoop(); return; } if (count == skipCount) { tempSuper = currentSuper; // for finding loops that only start after a linear chain skipCount *= 2; count = 0; } //Ignore if the super is not yet resolved.. if (!currentSuper.isHierarchyConnected()) return; currentSuper = currentSuper.superclass(); count++; } /* No loop detected and completely found that there is no loop * So, set that info for all the classes */ tempSuper = this; while (TypeBinding.notEquals(currentSuper, tempSuper)) { tempSuper.setHierarchyCheckDone(); tempSuper=tempSuper.superclass(); } } // NOTE: superInterfaces of binary types are resolved when needed @Override public ReferenceBinding[] superInterfaces() { if (!isPrototype()) { return this.superInterfaces = this.prototype.superInterfaces(); } if ((this.tagBits & TagBits.HasUnresolvedSuperinterfaces) == 0) return this.superInterfaces; for (int i = this.superInterfaces.length; --i >= 0;) { this.superInterfaces[i] = (ReferenceBinding) resolveType(this.superInterfaces[i], this.environment, true /* raw conversion */); if (this.superInterfaces[i].problemId() == ProblemReasons.NotFound) { this.tagBits |= TagBits.HierarchyHasProblems; // propagate type inconsistency } else { // make super-type resolving recursive for propagating typeBits downwards boolean wasToleratingMissingTypeProcessingAnnotations = this.environment.mayTolerateMissingType; this.environment.mayTolerateMissingType = true; // https://bugs.eclipse.org/bugs/show_bug.cgi?id=360164 try { this.superInterfaces[i].superclass(); if (this.superInterfaces[i].isParameterizedType()) { ReferenceBinding superType = this.superInterfaces[i].actualType(); if (TypeBinding.equalsEquals(superType, this)) { this.tagBits |= TagBits.HierarchyHasProblems; continue; } } this.superInterfaces[i].superInterfaces(); } finally { this.environment.mayTolerateMissingType = wasToleratingMissingTypeProcessingAnnotations; } } this.typeBits |= (this.superInterfaces[i].typeBits & TypeIds.InheritableBits); if ((this.typeBits & (TypeIds.BitAutoCloseable|TypeIds.BitCloseable)) != 0) // avoid the side-effects of hasTypeBit()! this.typeBits |= applyCloseableInterfaceWhitelists(); } this.tagBits &= ~TagBits.HasUnresolvedSuperinterfaces; return this.superInterfaces; } @Override public TypeVariableBinding[] typeVariables() { if (!isPrototype()) { return this.typeVariables = this.prototype.typeVariables(); } if ((this.tagBits & TagBits.HasUnresolvedTypeVariables) == 0) return this.typeVariables; for (int i = this.typeVariables.length; --i >= 0;) this.typeVariables[i].resolve(); this.tagBits &= ~TagBits.HasUnresolvedTypeVariables; return this.typeVariables; } @Override public String toString() { if (this.hasTypeAnnotations()) return annotatedDebugName(); StringBuffer buffer = new StringBuffer(); if (isDeprecated()) buffer.append("deprecated "); //$NON-NLS-1$ if (isPublic()) buffer.append("public "); //$NON-NLS-1$ if (isProtected()) buffer.append("protected "); //$NON-NLS-1$ if (isPrivate()) buffer.append("private "); //$NON-NLS-1$ if (isAbstract() && isClass()) buffer.append("abstract "); //$NON-NLS-1$ if (isStatic() && isNestedType()) buffer.append("static "); //$NON-NLS-1$ if (isFinal()) buffer.append("final "); //$NON-NLS-1$ if (isEnum()) buffer.append("enum "); //$NON-NLS-1$ else if (isAnnotationType()) buffer.append("@interface "); //$NON-NLS-1$ else if (isClass()) buffer.append("class "); //$NON-NLS-1$ else buffer.append("interface "); //$NON-NLS-1$ buffer.append((this.compoundName != null) ? CharOperation.toString(this.compoundName) : "UNNAMED TYPE"); //$NON-NLS-1$ if (this.typeVariables == null) { buffer.append("<NULL TYPE VARIABLES>"); //$NON-NLS-1$ } else if (this.typeVariables != Binding.NO_TYPE_VARIABLES) { buffer.append("<"); //$NON-NLS-1$ for (int i = 0, length = this.typeVariables.length; i < length; i++) { if (i > 0) buffer.append(", "); //$NON-NLS-1$ if (this.typeVariables[i] == null) { buffer.append("NULL TYPE VARIABLE"); //$NON-NLS-1$ continue; } char[] varChars = this.typeVariables[i].toString().toCharArray(); buffer.append(varChars, 1, varChars.length - 2); } buffer.append(">"); //$NON-NLS-1$ } buffer.append("\n\textends "); //$NON-NLS-1$ buffer.append((this.superclass != null) ? this.superclass.debugName() : "NULL TYPE"); //$NON-NLS-1$ if (this.superInterfaces != null) { if (this.superInterfaces != Binding.NO_SUPERINTERFACES) { buffer.append("\n\timplements : "); //$NON-NLS-1$ for (int i = 0, length = this.superInterfaces.length; i < length; i++) { if (i > 0) buffer.append(", "); //$NON-NLS-1$ buffer.append((this.superInterfaces[i] != null) ? this.superInterfaces[i].debugName() : "NULL TYPE"); //$NON-NLS-1$ } } } else { buffer.append("NULL SUPERINTERFACES"); //$NON-NLS-1$ } if (this.enclosingType != null) { buffer.append("\n\tenclosing type : "); //$NON-NLS-1$ buffer.append(this.enclosingType.debugName()); } if (this.fields != null) { if (this.fields != Binding.NO_FIELDS) { buffer.append("\n/* fields */"); //$NON-NLS-1$ for (int i = 0, length = this.fields.length; i < length; i++) buffer.append((this.fields[i] != null) ? "\n" + this.fields[i].toString() : "\nNULL FIELD"); //$NON-NLS-1$ //$NON-NLS-2$ } } else { buffer.append("NULL FIELDS"); //$NON-NLS-1$ } if (this.methods != null) { if (this.methods != Binding.NO_METHODS) { buffer.append("\n/* methods */"); //$NON-NLS-1$ for (int i = 0, length = this.methods.length; i < length; i++) buffer.append((this.methods[i] != null) ? "\n" + this.methods[i].toString() : "\nNULL METHOD"); //$NON-NLS-1$ //$NON-NLS-2$ } } else { buffer.append("NULL METHODS"); //$NON-NLS-1$ } if (this.memberTypes != null) { if (this.memberTypes != Binding.NO_MEMBER_TYPES) { buffer.append("\n/* members */"); //$NON-NLS-1$ for (int i = 0, length = this.memberTypes.length; i < length; i++) buffer.append((this.memberTypes[i] != null) ? "\n" + this.memberTypes[i].toString() : "\nNULL TYPE"); //$NON-NLS-1$ //$NON-NLS-2$ } } else { buffer.append("NULL MEMBER TYPES"); //$NON-NLS-1$ } buffer.append("\n\n\n"); //$NON-NLS-1$ return buffer.toString(); } @Override public TypeBinding unannotated() { return this.prototype; } @Override public TypeBinding withoutToplevelNullAnnotation() { if (!hasNullTypeAnnotations()) return this; AnnotationBinding[] newAnnotations = this.environment.filterNullTypeAnnotations(this.typeAnnotations); if (newAnnotations.length > 0) return this.environment.createAnnotatedType(this.prototype, newAnnotations); return this.prototype; } @Override MethodBinding[] unResolvedMethods() { // for the MethodVerifier so it doesn't resolve types if (!isPrototype()) return this.prototype.unResolvedMethods(); return this.methods; } @Override public FieldBinding[] unResolvedFields() { if (!isPrototype()) return this.prototype.unResolvedFields(); return this.fields; } @Override public ModuleBinding module() { if (!isPrototype()) return this.prototype.module; return this.module; } }