Java Code Examples for org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants#AccEnum

protected void decodeModifiers() {

	// Extract suffix from modifiers instead of index key
	switch (this.modifiers & (ClassFileConstants.AccInterface|ClassFileConstants.AccEnum|ClassFileConstants.AccAnnotation)) {
		case ClassFileConstants.AccAnnotation:
		case ClassFileConstants.AccAnnotation+ClassFileConstants.AccInterface:
			this.typeSuffix = ANNOTATION_TYPE_SUFFIX;
			break;
		case ClassFileConstants.AccEnum:
			this.typeSuffix = ENUM_SUFFIX;
			break;
		case ClassFileConstants.AccInterface:
			this.typeSuffix = INTERFACE_SUFFIX;
			break;
		default:
			this.typeSuffix = CLASS_SUFFIX;
			break;
	}
}
 

private QualifiedAllocationExpression convert(IJavaElement localType, FieldDeclaration enumConstant, CompilationResult compilationResult) throws JavaModelException {
	TypeDeclaration anonymousLocalTypeDeclaration = convert((SourceType) localType, compilationResult);
	QualifiedAllocationExpression expression = new QualifiedAllocationExpression(anonymousLocalTypeDeclaration);
	expression.type = anonymousLocalTypeDeclaration.superclass;
	anonymousLocalTypeDeclaration.superclass = null;
	anonymousLocalTypeDeclaration.superInterfaces = null;
	anonymousLocalTypeDeclaration.allocation = expression;
	if (enumConstant != null) {
		anonymousLocalTypeDeclaration.modifiers &= ~ClassFileConstants.AccEnum;
		expression.enumConstant = enumConstant;
		expression.type = null;
	}
	return expression;
}
 

public final static int kind(int flags) {
	switch (flags & (ClassFileConstants.AccInterface|ClassFileConstants.AccAnnotation|ClassFileConstants.AccEnum)) {
		case ClassFileConstants.AccInterface :
			return TypeDeclaration.INTERFACE_DECL;
		case ClassFileConstants.AccInterface|ClassFileConstants.AccAnnotation :
			return TypeDeclaration.ANNOTATION_TYPE_DECL;
		case ClassFileConstants.AccEnum :
			return TypeDeclaration.ENUM_DECL;
		default :
			return TypeDeclaration.CLASS_DECL;
	}
}
 

public int enumConstantCount() {
	int count = 0;
	FieldBinding[] fields = fields();
	for (int i = 0, length = fields.length; i < length; i++) {
		if ((fields[i].modifiers & ClassFileConstants.AccEnum) != 0) count++;
	}
	return count;
}
 

public ParameterizedFieldBinding(ParameterizedTypeBinding parameterizedDeclaringClass, FieldBinding originalField) {
    super (
            originalField.name,
            (originalField.modifiers & ClassFileConstants.AccEnum) != 0
            	? parameterizedDeclaringClass // enum constant get paramType as its type
       			: (originalField.modifiers & ClassFileConstants.AccStatic) != 0
       					? originalField.type // no subst for static field
       					: Scope.substitute(parameterizedDeclaringClass, originalField.type),
            originalField.modifiers,
            parameterizedDeclaringClass,
            null);
    this.originalField = originalField;
    this.tagBits = originalField.tagBits;
    this.id = originalField.id;
}
 

public static Object getValue(Expression expression) {
	if (expression == null)
		return null;
	Constant constant = expression.constant;
	// literals would hit this case.
	if (constant != null && constant != Constant.NotAConstant)
		return constant;

	if (expression instanceof Annotation)
		return ((Annotation) expression).getCompilerAnnotation();
	if (expression instanceof ArrayInitializer) {
		Expression[] exprs = ((ArrayInitializer) expression).expressions;
		int length = exprs == null ? 0 : exprs.length;
		Object[] values = new Object[length];
		for (int i = 0; i < length; i++)
			values[i] = getValue(exprs[i]);
		return values;
	}
	if (expression instanceof ClassLiteralAccess)
		return ((ClassLiteralAccess) expression).targetType;
	if (expression instanceof Reference) {
		FieldBinding fieldBinding = null;
		if (expression instanceof FieldReference) {
			fieldBinding = ((FieldReference) expression).fieldBinding();
		} else if (expression instanceof NameReference) {
			Binding binding = ((NameReference) expression).binding;
			if (binding != null && binding.kind() == Binding.FIELD)
				fieldBinding = (FieldBinding) binding;
		}
		if (fieldBinding != null && (fieldBinding.modifiers & ClassFileConstants.AccEnum) > 0)
			return fieldBinding;
	}
	// something that isn't a compile time constant.
	return null;
}
 

public static ConstructorDeclaration createConstructor(
		AccessLevel level, EclipseNode type, Collection<EclipseNode> fields,
		Boolean suppressConstructorProperties, EclipseNode sourceNode, List<Annotation> onConstructor) {
	
	ASTNode source = sourceNode.get();
	TypeDeclaration typeDeclaration = ((TypeDeclaration)type.get());
	long p = (long)source.sourceStart << 32 | source.sourceEnd;
	
	boolean isEnum = (((TypeDeclaration)type.get()).modifiers & ClassFileConstants.AccEnum) != 0;
	
	if (isEnum) level = AccessLevel.PRIVATE;
	
	if (suppressConstructorProperties == null) {
		if (fields.isEmpty()) {
			suppressConstructorProperties = false;
		} else {
			suppressConstructorProperties = Boolean.TRUE.equals(type.getAst().readConfiguration(ConfigurationKeys.ANY_CONSTRUCTOR_SUPPRESS_CONSTRUCTOR_PROPERTIES));
		}
	}
	
	ConstructorDeclaration constructor = new ConstructorDeclaration(
			((CompilationUnitDeclaration) type.top().get()).compilationResult);
	
	constructor.modifiers = toEclipseModifier(level);
	constructor.selector = typeDeclaration.name;
	constructor.constructorCall = new ExplicitConstructorCall(ExplicitConstructorCall.ImplicitSuper);
	constructor.constructorCall.sourceStart = source.sourceStart;
	constructor.constructorCall.sourceEnd = source.sourceEnd;
	constructor.thrownExceptions = null;
	constructor.typeParameters = null;
	constructor.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
	constructor.bodyStart = constructor.declarationSourceStart = constructor.sourceStart = source.sourceStart;
	constructor.bodyEnd = constructor.declarationSourceEnd = constructor.sourceEnd = source.sourceEnd;
	constructor.arguments = null;
	
	List<Argument> params = new ArrayList<Argument>();
	List<Statement> assigns = new ArrayList<Statement>();
	List<Statement> nullChecks = new ArrayList<Statement>();
	
	for (EclipseNode fieldNode : fields) {
		FieldDeclaration field = (FieldDeclaration) fieldNode.get();
		char[] rawName = field.name;
		char[] fieldName = removePrefixFromField(fieldNode);
		FieldReference thisX = new FieldReference(rawName, p);
		thisX.receiver = new ThisReference((int)(p >> 32), (int)p);
		
		SingleNameReference assignmentNameRef = new SingleNameReference(fieldName, p);
		Assignment assignment = new Assignment(thisX, assignmentNameRef, (int)p);
		assignment.sourceStart = (int)(p >> 32); assignment.sourceEnd = assignment.statementEnd = (int)(p >> 32);
		assigns.add(assignment);
		long fieldPos = (((long)field.sourceStart) << 32) | field.sourceEnd;
		Argument parameter = new Argument(fieldName, fieldPos, copyType(field.type, source), Modifier.FINAL);
		Annotation[] nonNulls = findAnnotations(field, NON_NULL_PATTERN);
		Annotation[] nullables = findAnnotations(field, NULLABLE_PATTERN);
		if (nonNulls.length != 0) {
			Statement nullCheck = generateNullCheck(field, sourceNode);
			if (nullCheck != null) nullChecks.add(nullCheck);
		}
		parameter.annotations = copyAnnotations(source, nonNulls, nullables);
		params.add(parameter);
	}
	
	nullChecks.addAll(assigns);
	constructor.statements = nullChecks.isEmpty() ? null : nullChecks.toArray(new Statement[nullChecks.size()]);
	constructor.arguments = params.isEmpty() ? null : params.toArray(new Argument[params.size()]);
	
	/* Generate annotations that must  be put on the generated method, and attach them. */ {
		Annotation[] constructorProperties = null;
		if (!suppressConstructorProperties && level != AccessLevel.PRIVATE && level != AccessLevel.PACKAGE && !isLocalType(type)) {
			constructorProperties = createConstructorProperties(source, fields);
		}
		
		constructor.annotations = copyAnnotations(source,
				onConstructor.toArray(new Annotation[0]),
				constructorProperties);
	}
	
	constructor.traverse(new SetGeneratedByVisitor(source), typeDeclaration.scope);
	return constructor;
}
 

private FieldDeclaration convert(SourceField fieldHandle, TypeDeclaration type, CompilationResult compilationResult) throws JavaModelException {

		SourceFieldElementInfo fieldInfo = (SourceFieldElementInfo) fieldHandle.getElementInfo();
		FieldDeclaration field = new FieldDeclaration();

		int start = fieldInfo.getNameSourceStart();
		int end = fieldInfo.getNameSourceEnd();

		field.name = fieldHandle.getElementName().toCharArray();
		field.sourceStart = start;
		field.sourceEnd = end;
		field.declarationSourceStart = fieldInfo.getDeclarationSourceStart();
		field.declarationSourceEnd = fieldInfo.getDeclarationSourceEnd();
		int modifiers = fieldInfo.getModifiers();
		boolean isEnumConstant = (modifiers & ClassFileConstants.AccEnum) != 0;
		if (isEnumConstant) {
			field.modifiers = modifiers & ~ClassFileConstants.AccEnum; // clear AccEnum bit onto AST (binding will add it)
		} else {
			field.modifiers = modifiers;
			field.type = createTypeReference(fieldInfo.getTypeName(), start, end);
		}

		// convert 1.5 specific constructs only if compliance is 1.5 or above
		if (this.has1_5Compliance) {
			/* convert annotations */
			field.annotations = convertAnnotations(fieldHandle);
		}

		/* conversion of field constant */
		if ((this.flags & FIELD_INITIALIZATION) != 0) {
			char[] initializationSource = fieldInfo.getInitializationSource();
			if (initializationSource != null) {
				if (this.parser == null) {
					this.parser = new Parser(this.problemReporter, true);
				}
				this.parser.parse(field, type, this.unit, initializationSource);
			}
		}

		/* conversion of local and anonymous types */
		if ((this.flags & LOCAL_TYPE) != 0) {
			IJavaElement[] children = fieldInfo.getChildren();
			int childrenLength = children.length;
			if (childrenLength == 1) {
				field.initialization = convert(children[0], isEnumConstant ? field : null, compilationResult);
			} else if (childrenLength > 1) {
				ArrayInitializer initializer = new ArrayInitializer();
				field.initialization = initializer;
				Expression[] expressions = new Expression[childrenLength];
				initializer.expressions = expressions;
				for (int i = 0; i < childrenLength; i++) {
					expressions[i] = convert(children[i], isEnumConstant ? field : null, compilationResult);
				}
			}
		}
		return field;
	}
 

protected void notifySourceElementRequestor(FieldDeclaration fieldDeclaration, TypeDeclaration declaringType) {

	// range check
	boolean isInRange =
				this.initialPosition <= fieldDeclaration.declarationSourceStart
				&& this.eofPosition >= fieldDeclaration.declarationSourceEnd;

	switch(fieldDeclaration.getKind()) {
		case AbstractVariableDeclaration.ENUM_CONSTANT:
			if (this.reportReferenceInfo) {
				// accept constructor reference for enum constant
				if (fieldDeclaration.initialization instanceof AllocationExpression) {
					AllocationExpression alloc = (AllocationExpression) fieldDeclaration.initialization;
					this.requestor.acceptConstructorReference(
						declaringType.name,
						alloc.arguments == null ? 0 : alloc.arguments.length,
						alloc.sourceStart);
				}
			}
			// $FALL-THROUGH$
		case AbstractVariableDeclaration.FIELD:
			int fieldEndPosition = this.sourceEnds.get(fieldDeclaration);
			if (fieldEndPosition == -1) {
				// use the declaration source end by default
				fieldEndPosition = fieldDeclaration.declarationSourceEnd;
			}
			if (isInRange) {
				int currentModifiers = fieldDeclaration.modifiers;

				// remember deprecation so as to not lose it below
				boolean deprecated = (currentModifiers & ClassFileConstants.AccDeprecated) != 0 || hasDeprecatedAnnotation(fieldDeclaration.annotations);

				char[] typeName = null;
				if (fieldDeclaration.type == null) {
					// enum constant
					typeName = declaringType.name;
					currentModifiers |= ClassFileConstants.AccEnum;
				} else {
					// regular field
					typeName = CharOperation.concatWith(fieldDeclaration.type.getParameterizedTypeName(), '.');
				}
				ISourceElementRequestor.FieldInfo fieldInfo = new ISourceElementRequestor.FieldInfo();
				fieldInfo.typeAnnotated = ((fieldDeclaration.bits & ASTNode.HasTypeAnnotations) != 0);
				fieldInfo.declarationStart = fieldDeclaration.declarationSourceStart;
				fieldInfo.name = fieldDeclaration.name;
				fieldInfo.modifiers = deprecated ? (currentModifiers & ExtraCompilerModifiers.AccJustFlag) | ClassFileConstants.AccDeprecated : currentModifiers & ExtraCompilerModifiers.AccJustFlag;
				fieldInfo.type = typeName;
				fieldInfo.nameSourceStart = fieldDeclaration.sourceStart;
				fieldInfo.nameSourceEnd = fieldDeclaration.sourceEnd;
				fieldInfo.categories = (char[][]) this.nodesToCategories.get(fieldDeclaration);
				fieldInfo.annotations = fieldDeclaration.annotations;
				fieldInfo.node = fieldDeclaration;
				this.requestor.enterField(fieldInfo);
			}
			this.visitIfNeeded(fieldDeclaration, declaringType);
			if (isInRange){
				this.requestor.exitField(
					// filter out initializations that are not a constant (simple check)
					(fieldDeclaration.initialization == null
							|| fieldDeclaration.initialization instanceof ArrayInitializer
							|| fieldDeclaration.initialization instanceof AllocationExpression
							|| fieldDeclaration.initialization instanceof ArrayAllocationExpression
							|| fieldDeclaration.initialization instanceof Assignment
							|| fieldDeclaration.initialization instanceof ClassLiteralAccess
							|| fieldDeclaration.initialization instanceof MessageSend
							|| fieldDeclaration.initialization instanceof ArrayReference
							|| fieldDeclaration.initialization instanceof ThisReference) ?
						-1 :
						fieldDeclaration.initialization.sourceStart,
					fieldEndPosition,
					fieldDeclaration.declarationSourceEnd);
			}
			break;
		case AbstractVariableDeclaration.INITIALIZER:
			if (isInRange){
				this.requestor.enterInitializer(
					fieldDeclaration.declarationSourceStart,
					fieldDeclaration.modifiers);
			}
			this.visitIfNeeded((Initializer)fieldDeclaration);
			if (isInRange){
				this.requestor.exitInitializer(fieldDeclaration.declarationSourceEnd);
			}
			break;
	}
}
 

public boolean isEnumConstant() {
	return (this.binding.modifiers & ClassFileConstants.AccEnum) != 0;
}
 

/**
 * Returns the constant intValue or ordinal for enum constants. If constant is NotAConstant, then answers Float.MIN_VALUE
 * @see org.eclipse.jdt.internal.compiler.ast.Statement#resolveCase(org.eclipse.jdt.internal.compiler.lookup.BlockScope, org.eclipse.jdt.internal.compiler.lookup.TypeBinding, org.eclipse.jdt.internal.compiler.ast.SwitchStatement)
 */
public Constant resolveCase(BlockScope scope, TypeBinding switchExpressionType, SwitchStatement switchStatement) {
	// switchExpressionType maybe null in error case
	scope.enclosingCase = this; // record entering in a switch case block

	if (this.constantExpression == null) {
		// remember the default case into the associated switch statement
		if (switchStatement.defaultCase != null)
			scope.problemReporter().duplicateDefaultCase(this);

		// on error the last default will be the selected one ...
		switchStatement.defaultCase = this;
		return Constant.NotAConstant;
	}
	// add into the collection of cases of the associated switch statement
	switchStatement.cases[switchStatement.caseCount++] = this;
	// tag constant name with enum type for privileged access to its members
	if (switchExpressionType != null && switchExpressionType.isEnum() && (this.constantExpression instanceof SingleNameReference)) {
		((SingleNameReference) this.constantExpression).setActualReceiverType((ReferenceBinding)switchExpressionType);
	}
	TypeBinding caseType = this.constantExpression.resolveType(scope);
	if (caseType == null || switchExpressionType == null) return Constant.NotAConstant;
	if (this.constantExpression.isConstantValueOfTypeAssignableToType(caseType, switchExpressionType)
			|| caseType.isCompatibleWith(switchExpressionType)) {
		if (caseType.isEnum()) {
			if (((this.constantExpression.bits & ASTNode.ParenthesizedMASK) >> ASTNode.ParenthesizedSHIFT) != 0) {
				scope.problemReporter().enumConstantsCannotBeSurroundedByParenthesis(this.constantExpression);
			}

			if (this.constantExpression instanceof NameReference
					&& (this.constantExpression.bits & ASTNode.RestrictiveFlagMASK) == Binding.FIELD) {
				NameReference reference = (NameReference) this.constantExpression;
				FieldBinding field = reference.fieldBinding();
				if ((field.modifiers & ClassFileConstants.AccEnum) == 0) {
					 scope.problemReporter().enumSwitchCannotTargetField(reference, field);
				} else 	if (reference instanceof QualifiedNameReference) {
					 scope.problemReporter().cannotUseQualifiedEnumConstantInCaseLabel(reference, field);
				}
				return IntConstant.fromValue(field.original().id + 1); // (ordinal value + 1) zero should not be returned see bug 141810
			}
		} else {
			return this.constantExpression.constant;
		}
	} else if (isBoxingCompatible(caseType, switchExpressionType, this.constantExpression, scope)) {
		// constantExpression.computeConversion(scope, caseType, switchExpressionType); - do not report boxing/unboxing conversion
		return this.constantExpression.constant;
	}
	scope.problemReporter().typeMismatchError(caseType, switchExpressionType, this.constantExpression, switchStatement.expression);
	return Constant.NotAConstant;
}
 

/**
 * Answer true if the receiver can be instantiated
 */
public boolean canBeInstantiated() {
	return (this.modifiers & (ClassFileConstants.AccAbstract | ClassFileConstants.AccInterface | ClassFileConstants.AccEnum | ClassFileConstants.AccAnnotation)) == 0;
}
 

public boolean isClass() {
	return (this.modifiers & (ClassFileConstants.AccInterface | ClassFileConstants.AccAnnotation | ClassFileConstants.AccEnum)) == 0;
}
 

public boolean isEnum() {
	return (this.modifiers & ClassFileConstants.AccEnum) != 0;
}
 

/**
 * Spec : 8.4.3 & 9.4
 */
private void checkAndSetModifiersForConstructor(MethodBinding methodBinding) {
	int modifiers = methodBinding.modifiers;
	final ReferenceBinding declaringClass = methodBinding.declaringClass;
	if ((modifiers & ExtraCompilerModifiers.AccAlternateModifierProblem) != 0)
		problemReporter().duplicateModifierForMethod(declaringClass, (AbstractMethodDeclaration) this.referenceContext);

	if ((((ConstructorDeclaration) this.referenceContext).bits & ASTNode.IsDefaultConstructor) != 0) {
		// certain flags are propagated from declaring class onto constructor
		final int DECLARING_FLAGS = ClassFileConstants.AccEnum|ClassFileConstants.AccPublic|ClassFileConstants.AccProtected;
		final int VISIBILITY_FLAGS = ClassFileConstants.AccPrivate|ClassFileConstants.AccPublic|ClassFileConstants.AccProtected;
		int flags;
		if ((flags = declaringClass.modifiers & DECLARING_FLAGS) != 0) {
			if ((flags & ClassFileConstants.AccEnum) != 0) {
				modifiers &= ~VISIBILITY_FLAGS;
				modifiers |= ClassFileConstants.AccPrivate; // default constructor is implicitly private in enum
			} else {
				modifiers &= ~VISIBILITY_FLAGS;
				modifiers |= flags; // propagate public/protected
			}
		}
	}

	// after this point, tests on the 16 bits reserved.
	int realModifiers = modifiers & ExtraCompilerModifiers.AccJustFlag;

	// check for abnormal modifiers
	final int UNEXPECTED_MODIFIERS = ~(ClassFileConstants.AccPublic | ClassFileConstants.AccPrivate | ClassFileConstants.AccProtected | ClassFileConstants.AccStrictfp);
	if (declaringClass.isEnum() && (((ConstructorDeclaration) this.referenceContext).bits & ASTNode.IsDefaultConstructor) == 0) {
		final int UNEXPECTED_ENUM_CONSTR_MODIFIERS = ~(ClassFileConstants.AccPrivate | ClassFileConstants.AccStrictfp);
		if ((realModifiers & UNEXPECTED_ENUM_CONSTR_MODIFIERS) != 0) {
			problemReporter().illegalModifierForEnumConstructor((AbstractMethodDeclaration) this.referenceContext);
			modifiers &= ~ExtraCompilerModifiers.AccJustFlag | ~UNEXPECTED_ENUM_CONSTR_MODIFIERS;
		} else if ((((AbstractMethodDeclaration) this.referenceContext).modifiers & ClassFileConstants.AccStrictfp) != 0) {
			// must check the parse node explicitly
			problemReporter().illegalModifierForMethod((AbstractMethodDeclaration) this.referenceContext);
		}
		modifiers |= ClassFileConstants.AccPrivate; // enum constructor is implicitly private
	} else if ((realModifiers & UNEXPECTED_MODIFIERS) != 0) {
		problemReporter().illegalModifierForMethod((AbstractMethodDeclaration) this.referenceContext);
		modifiers &= ~ExtraCompilerModifiers.AccJustFlag | ~UNEXPECTED_MODIFIERS;
	} else if ((((AbstractMethodDeclaration) this.referenceContext).modifiers & ClassFileConstants.AccStrictfp) != 0) {
		// must check the parse node explicitly
		problemReporter().illegalModifierForMethod((AbstractMethodDeclaration) this.referenceContext);
	}

	// check for incompatible modifiers in the visibility bits, isolate the visibility bits
	int accessorBits = realModifiers & (ClassFileConstants.AccPublic | ClassFileConstants.AccProtected | ClassFileConstants.AccPrivate);
	if ((accessorBits & (accessorBits - 1)) != 0) {
		problemReporter().illegalVisibilityModifierCombinationForMethod(declaringClass, (AbstractMethodDeclaration) this.referenceContext);

		// need to keep the less restrictive so disable Protected/Private as necessary
		if ((accessorBits & ClassFileConstants.AccPublic) != 0) {
			if ((accessorBits & ClassFileConstants.AccProtected) != 0)
				modifiers &= ~ClassFileConstants.AccProtected;
			if ((accessorBits & ClassFileConstants.AccPrivate) != 0)
				modifiers &= ~ClassFileConstants.AccPrivate;
		} else if ((accessorBits & ClassFileConstants.AccProtected) != 0 && (accessorBits & ClassFileConstants.AccPrivate) != 0) {
			modifiers &= ~ClassFileConstants.AccPrivate;
		}
	}

//		// if the receiver's declaring class is a private nested type, then make sure the receiver is not private (causes problems for inner type emulation)
//		if (declaringClass.isPrivate() && (modifiers & ClassFileConstants.AccPrivate) != 0)
//			modifiers &= ~ClassFileConstants.AccPrivate;

	methodBinding.modifiers = modifiers;
}
 

private void scanFieldForNullAnnotation(IBinaryField field, FieldBinding fieldBinding, boolean isEnum) {
	if (!isPrototype()) throw new IllegalStateException();
	if (this.environment.globalOptions.sourceLevel >= ClassFileConstants.JDK1_8) {
		TypeBinding fieldType = fieldBinding.type;
		if (fieldType != null
				&& !fieldType.isBaseType()
				&& (fieldType.tagBits & TagBits.AnnotationNullMASK) == 0
				&& hasNonNullDefaultFor(DefaultLocationField, true)) {
			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
	char[][] nullableAnnotationName = this.environment.getNullableAnnotationName();
	char[][] nonNullAnnotationName = this.environment.getNonNullAnnotationName();
	if (nullableAnnotationName == null || nonNullAnnotationName == null)
		return; // not well-configured to use null annotations

	if (fieldBinding.type == null || fieldBinding.type.isBaseType())
		return; // null annotations are only applied to reference types

	boolean explicitNullness = false;
	IBinaryAnnotation[] annotations = 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;
			char[][] typeName = CharOperation.splitOn('/', annotationTypeName, 1, annotationTypeName.length-1); // cut of leading 'L' and trailing ';'
			if (CharOperation.equals(typeName, nonNullAnnotationName)) {
				fieldBinding.tagBits |= TagBits.AnnotationNonNull;
				explicitNullness = true;
				break;
			}
			if (CharOperation.equals(typeName, nullableAnnotationName)) {
				fieldBinding.tagBits |= TagBits.AnnotationNullable;
				explicitNullness = true;
				break;
			}
		}
	}
	if (!explicitNullness && (this.tagBits & TagBits.AnnotationNonNullByDefault) != 0) {
		fieldBinding.tagBits |= TagBits.AnnotationNonNull;
	}
	if (isEnum) {
		if ((field.getModifiers() & ClassFileConstants.AccEnum) != 0) {
			fieldBinding.tagBits |= TagBits.AnnotationNonNull;
		}
	}
}