Package org.aspectj.org.eclipse.jdt.internal.compiler.lookup

Class WildcardBinding

java.lang.Object

org.aspectj.org.eclipse.jdt.internal.compiler.lookup.Binding

org.aspectj.org.eclipse.jdt.internal.compiler.lookup.TypeBinding

org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding

org.aspectj.org.eclipse.jdt.internal.compiler.lookup.WildcardBinding

public class WildcardBinding
extends ReferenceBinding

Field Summary

Fields

Modifier and Type	Field	Description
TypeBinding	bound
int	boundKind
ReferenceBinding	genericType
TypeBinding[]	otherBounds
int	rank

Fields inherited from class org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding

compoundName, fPackage, LUB_GENERIC, modifiers, samProblemBinding, singleAbstractMethod, sourceName

Fields inherited from class org.aspectj.org.eclipse.jdt.internal.compiler.lookup.TypeBinding

BOOLEAN, BYTE, CHAR, DOUBLE, extendedTagBits, FLOAT, id, INT, LONG, NULL, SHORT, tagBits, TYPE_USE_BINDING, typeAnnotations, VOID

Fields inherited from class org.aspectj.org.eclipse.jdt.internal.compiler.lookup.Binding

ANY_EXCEPTION, ARRAY_TYPE, BASE_TYPE, DefaultLocationArrayContents, DefaultLocationField, DefaultLocationParameter, DefaultLocationReturnType, DefaultLocationsForTrueValue, DefaultLocationTypeArgument, DefaultLocationTypeBound, DefaultLocationTypeParameter, FIELD, GENERIC_TYPE, IMPORT, INTERSECTION_TYPE, INTERSECTION_TYPE18, LOCAL, METHOD, MODULE, NO_ANNOTATIONS, NO_COMPONENTS, NO_ELEMENT_VALUE_PAIRS, NO_EXCEPTIONS, NO_FIELDS, NO_MEMBER_TYPES, NO_METHODS, NO_MODULES, NO_NULL_DEFAULT, NO_PACKAGES, NO_PARAMETER_NAMES, NO_PARAMETERS, NO_PERMITTEDTYPES, NO_PLAIN_PACKAGES, NO_REFERENCE_TYPES, NO_SUPERINTERFACES, NO_TYPE_VARIABLES, NO_TYPES, NULL_UNSPECIFIED_BY_DEFAULT, NullnessDefaultMASK, PACKAGE, PARAMETERIZED_TYPE, PATTERN, POLY_TYPE, RAW_TYPE, RECORD_COMPONENT, TYPE, TYPE_PARAMETER, TYPE_USE, UNINITIALIZED_COMPONENTS, UNINITIALIZED_FIELDS, UNINITIALIZED_METHODS, UNINITIALIZED_REFERENCE_TYPES, VARIABLE, WILDCARD_TYPE

Constructor Summary

Constructors

Constructor	Description
WildcardBinding(ReferenceBinding genericType, int rank, TypeBinding bound, TypeBinding[] otherBounds, int boundKind, LookupEnvironment environment)	When unbound, the bound denotes the corresponding type variable (so as to retrieve its bound lazily)

Method Summary

Modifier and Type	Method	Description
boolean	acceptsNonNullDefault()	Used to implement this sentence from o.e.j.annotation.DefaultLocation: "Wildcards and the use of type variables are always excluded from NonNullByDefault."
ReferenceBinding	actualType()
TypeBinding	allBounds()
String	annotatedDebugName()
boolean	boundCheck(TypeBinding argumentType)	Returns true if the argument type satisfies the wildcard bound(s)
boolean	canBeInstantiated()	Answer true if the receiver can be instantiated
TypeBinding	clone(TypeBinding immaterial)	Virtual copy constructor: a copy is made of the receiver's entire instance state and then suitably parameterized by the arguments to the clone operation as seen fit by each type.
List<TypeBinding>	collectMissingTypes(List<TypeBinding> missingTypes)	Iterate through the type components to collect instances of leaf missing types
void	collectSubstitutes(Scope scope, TypeBinding actualType, InferenceContext inferenceContext, int constraint)	Collect the substitutes into a map for certain type variables inside the receiver type e.g.
char[]	computeUniqueKey(boolean isLeaf)	p.X<T extends Y & I, U extends Y> -> Lp/X<TT;TU;>;
char[]	constantPoolName()	Answer the receiver's constant pool name.
String	debugName()
long	determineNullBitsFromDeclaration(Scope scope, Wildcard wildcard)	compute the nullTagBits from type annotations and bound.
boolean	enterRecursiveFunction()	Call this before descending into type details to prevent infinite recursion.
TypeBinding	erasure()
void	evaluateNullAnnotations(Scope scope, Wildcard wildcard)	evaluate null type annotations and check / copy nullTagBits from bound and typevariable.
void	exitRecursiveFunction()	Exit the context of a potentially recursive function.
char[]	genericTypeSignature()	Answer the receiver classfile signature.
ReferenceBinding[]	getIntersectingTypes()
int	hashCode()
boolean	hasTypeBit(int bit)	Answer an additional bit characterizing this type, like TypeIds.BitAutoCloseable.
boolean	isHierarchyConnected()	Returns true if the type hierarchy is connected
boolean	isIntersectionType()	Returns true if the current type denotes an intersection type: Number and Comparable<?>
boolean	isNonDenotable()	Does this type lack a class file representation on its own ?
boolean	isProperType(boolean admitCapture18)	JLS8 Sect 18.1.1
boolean	isSuperclassOf(ReferenceBinding otherType)	Answer true if the receiver is in the superclass hierarchy of aType NOTE: Object.isSuperclassOf(Object) -> false
boolean	isUnboundWildcard()	Returns true if wildcard type of the form '?' (no bound)
boolean	isWildcard()	Returns true if the type is a wildcard
int	kind()
boolean	mentionsAny(TypeBinding[] parameters, int idx)	Does this type mention any of the given type parameters, except the one at position 'idx'?
char[]	nullAnnotatedReadableName(CompilerOptions options, boolean shortNames)	Answer a readable name (for error reporting) that includes nullness type annotations.
char[]	readableName()	Answer the receiver's signature.
void	setTypeAnnotations(AnnotationBinding[] annotations, boolean evalNullAnnotations)
char[]	shortReadableName()
char[]	signature()	Answer the receiver classfile signature.
char[]	sourceName()
ReferenceBinding	superclass()
ReferenceBinding[]	superInterfaces()
void	swapUnresolved(UnresolvedReferenceBinding unresolvedType, ReferenceBinding resolvedType, LookupEnvironment env)
String	toString()
TypeVariableBinding	typeVariable()	Returns associated type variable, or null in case of inconsistency
TypeBinding	unannotated()	Return this type minus its type annotations
TypeBinding	uncapture(Scope scope)	Perform capture "deconversion" on a given type
long	updateTagBits()	Refresh some tagBits from details into the main type.
TypeBinding	withoutToplevelNullAnnotation()	Return this type minus its toplevel null annotations.

Methods inherited from class org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding

appendNullAnnotation, applyCloseableClassWhitelists, applyCloseableInterfaceWhitelists, availableFields, availableMethods, binarySearch, binarySearch, canBeSeenBy, canBeSeenBy, canBeSeenBy, computeGenericTypeSignature, computeId, computeId, depth, detectAnnotationCycle, detectWrapperResource, downwardsProjection, enclosingTypeAt, enumConstantCount, fieldCount, fields, getAccessFlags, getAnnotations, getAnnotationTagBits, getComponent, getEnclosingInstancesSlotSize, getExactConstructor, getExactMethod, getField, getField, getFileName, getInterfaceAbstractContracts, getMemberType, getMethods, getMethods, getOuterLocalVariablesSlotSize, getPackage, getRecordComponent, getRecordComponentAccessor, getSingleAbstractMethod, getTypeVariable, hasEnclosingInstanceContext, hasHierarchyCheckStarted, hasIncompatibleSuperType, hasMemberTypes, hasMethodWithNumArgs, hasNullBit, hasRestrictedAccess, implementsInterface, innerCanBeSeenBy, innerCanBeSeenBy, isAbstract, isAnnotationType, isBinaryBinding, isClass, isCompatibleWith, isConsistentIntersection, isDefault, isDeprecated, isEnum, isFieldInitializationFinished, isFinal, isFunctionalInterface, isHierarchyBeingActivelyConnected, isHierarchyBeingConnected, isImplicitType, isInPreconstructorContext, isInterface, isNestmateOf, isNonSealed, isOrEnclosedByPrivateType, isPrivate, isProtected, isPublic, isSealed, isStatic, isStrictfp, isSubtypeOf, isSubTypeOfRTL, isThrowable, isUncheckedException, isUsed, isViewedAsDeprecated, memberTypes, methods, module, outermostEnclosingType, permittedTypes, qualifiedSourceName, readableName, retrieveAnnotationHolder, setAnnotations, setContainerAnnotationType, setHierarchyCheckDone, shortReadableName, sortFields, sortMethods, syntheticEnclosingInstanceTypes, tagAsHavingDefectiveContainerType, unResolvedComponents, unResolvedFields, upwardsProjection

Methods inherited from class org.aspectj.org.eclipse.jdt.internal.compiler.lookup.TypeBinding

capture, closestMatch, components, containerAnnotationType, dimensions, enclosingMethod, enclosingType, equalsEquals, findSuperTypeOriginatingFrom, findSuperTypeOriginatingFrom, genericCast, getErasureCompatibleType, getTypeAnnotations, hasNullTypeAnnotations, hasTypeAnnotations, hasValueBasedTypeAnnotation, isAnonymousType, isArrayType, isBaseType, isBoundParameterizedType, isBoxedPrimitiveType, isBoxingCompatibleWith, isCapture, isCompatibleWith, isEquivalentTo, isFreeTypeVariable, isFunctionalType, isGenericType, isHierarchyInconsistent, isIntersectionType18, isLocalType, isMemberType, isNestedType, isNumericType, isParameterizedType, isParameterizedTypeWithActualArguments, isParameterizedWithOwnVariables, isPolyType, isPotentiallyCompatibleWith, isPrimitiveOrBoxedPrimitiveType, isPrimitiveType, isProvablyDistinct, isRawType, isReadyForAnnotations, isRecord, isReifiable, isRepeatableAnnotationType, isTypeArgumentContainedBy, isTypeVariable, isUnresolvedType, leafComponentType, needsUncheckedConversion, notEquals, original, prototype, qualifiedPackageName, signableName, sIsMoreSpecific, syntheticOuterLocalVariables, syntheticTypeVariablesMentioned, typeVariables, wellKnownBaseType, wellKnownType

Methods inherited from class org.aspectj.org.eclipse.jdt.internal.compiler.lookup.Binding

computeUniqueKey, initializeDeprecatedAnnotationTagBits, isParameter, isPatternVariable, isTaggedRepeatable, isValid, isValidBinding, isVolatile, problemId, setAnnotations

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

genericType

public ReferenceBinding genericType

rank

public int rank

bound

public TypeBinding bound

otherBounds

public TypeBinding[] otherBounds

boundKind

public int boundKind

Constructor Details

WildcardBinding

public WildcardBinding(ReferenceBinding genericType,
 int rank,
 TypeBinding bound,
 TypeBinding[] otherBounds,
 int boundKind,
 LookupEnvironment environment)

When unbound, the bound denotes the corresponding type variable (so as to retrieve its bound lazily)

Method Details

allBounds

public TypeBinding allBounds()

setTypeAnnotations

public void setTypeAnnotations(AnnotationBinding[] annotations,
 boolean evalNullAnnotations)

Overrides:

setTypeAnnotations in class TypeBinding

evaluateNullAnnotations

public void evaluateNullAnnotations(Scope scope,
 Wildcard wildcard)

evaluate null type annotations and check / copy nullTagBits from bound and typevariable. may be invoked repeatedly.

Parameters:

scope - (may be null, if wildcard is null)

wildcard - (may be null. if non-null, errors are reported and type annotations are dropped from this.bound in case of conflicts.)

determineNullBitsFromDeclaration

public long determineNullBitsFromDeclaration(Scope scope,
 Wildcard wildcard)

compute the nullTagBits from type annotations and bound.

Parameters:

scope - (may be null, if wildcard is null)

wildcard - (may be null. if non-null, errors are reported and type annotations are dropped from this.bound in case of conflicts.)

actualType

public ReferenceBinding actualType()

Overrides:

actualType in class TypeBinding

kind

public int kind()

Overrides:

kind in class TypeBinding

boundCheck

public boolean boundCheck(TypeBinding argumentType)

Returns true if the argument type satisfies the wildcard bound(s)

canBeInstantiated

public boolean canBeInstantiated()

Description copied from class: ReferenceBinding

Answer true if the receiver can be instantiated

Overrides:

canBeInstantiated in class ReferenceBinding

See Also:

• invalid reference

  org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding#canBeInstantiated()

collectMissingTypes

public List<TypeBinding> collectMissingTypes(List<TypeBinding> missingTypes)

Description copied from class: TypeBinding

Iterate through the type components to collect instances of leaf missing types

Overrides:

collectMissingTypes in class TypeBinding

Returns:

missing types

See Also:

• invalid reference

  org.eclipse.jdt.internal.compiler.lookup.TypeBinding#collectMissingTypes(java.util.List)

collectSubstitutes

public void collectSubstitutes(Scope scope,
 TypeBinding actualType,
 InferenceContext inferenceContext,
 int constraint)

Collect the substitutes into a map for certain type variables inside the receiver type e.g. Collection<T>.collectSubstitutes(Collection<List<X>>, Map) will populate Map with: T --> List<X> Constraints:

   A << F   corresponds to:   F.collectSubstitutes(..., A, ..., CONSTRAINT_EXTENDS (1))
   A = F    corresponds to:   F.collectSubstitutes(..., A, ..., CONSTRAINT_EQUAL (0))
   A >> F   corresponds to:   F.collectSubstitutes(..., A, ..., CONSTRAINT_SUPER (2))
 

Overrides:

collectSubstitutes in class TypeBinding

computeUniqueKey

public char[] computeUniqueKey(boolean isLeaf)

Description copied from class: ReferenceBinding

p.X<T extends Y & I, U extends Y> -> Lp/X<TT;TU;>;

Overrides:

computeUniqueKey in class ReferenceBinding

constantPoolName

public char[] constantPoolName()

Description copied from class: ReferenceBinding

Answer the receiver's constant pool name. NOTE: This method should only be used during/after code gen.

Overrides:

constantPoolName in class ReferenceBinding

See Also:

• invalid reference

  org.eclipse.jdt.internal.compiler.lookup.TypeBinding#constantPoolName()

clone

public TypeBinding clone(TypeBinding immaterial)

Description copied from class: TypeBinding

Virtual copy constructor: a copy is made of the receiver's entire instance state and then suitably parameterized by the arguments to the clone operation as seen fit by each type. Parameters may not make sense for every type in the hierarchy, in which case they are silently ignored. A type may choose to retain a copy of the prototype for reference.

Overrides:

clone in class TypeBinding

annotatedDebugName

public String annotatedDebugName()

Overrides:

annotatedDebugName in class TypeBinding

debugName

public String debugName()

Overrides:

debugName in class ReferenceBinding

See Also:

• invalid reference

  org.eclipse.jdt.internal.compiler.lookup.TypeBinding#debugName()

erasure

public TypeBinding erasure()

Overrides:

erasure in class TypeBinding

genericTypeSignature

public char[] genericTypeSignature()

Description copied from class: TypeBinding

Answer the receiver classfile signature. Arrays and base types do not distinguish between signature() and constantPoolName(). NOTE: This method should only be used during/after code gen.

Overrides:

genericTypeSignature in class TypeBinding

hashCode

public int hashCode()

Overrides:

hashCode in class ReferenceBinding

hasTypeBit

public boolean hasTypeBit(int bit)

Description copied from class: TypeBinding

Answer an additional bit characterizing this type, like TypeIds.BitAutoCloseable.

Overrides:

hasTypeBit in class TypeBinding

isSuperclassOf

public boolean isSuperclassOf(ReferenceBinding otherType)

Description copied from class: ReferenceBinding

Answer true if the receiver is in the superclass hierarchy of aType NOTE: Object.isSuperclassOf(Object) -> false

Overrides:

isSuperclassOf in class ReferenceBinding

See Also:

• invalid reference

  org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding#isSuperclassOf(org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding)

isIntersectionType

public boolean isIntersectionType()

Description copied from class: TypeBinding

Returns true if the current type denotes an intersection type: Number and Comparable<?>

Overrides:

isIntersectionType in class TypeBinding

getIntersectingTypes

public ReferenceBinding[] getIntersectingTypes()

Overrides:

getIntersectingTypes in class TypeBinding

isHierarchyConnected

public boolean isHierarchyConnected()

Description copied from class: ReferenceBinding

Returns true if the type hierarchy is connected

Overrides:

isHierarchyConnected in class ReferenceBinding

enterRecursiveFunction

public boolean enterRecursiveFunction()

Description copied from class: TypeBinding

Call this before descending into type details to prevent infinite recursion.

Overrides:

enterRecursiveFunction in class TypeBinding

Returns:

true if a recursion was not already started.

exitRecursiveFunction

public void exitRecursiveFunction()

Description copied from class: TypeBinding

Exit the context of a potentially recursive function.

Overrides:

exitRecursiveFunction in class TypeBinding

isProperType

public boolean isProperType(boolean admitCapture18)

Description copied from class: TypeBinding

JLS8 Sect 18.1.1

Overrides:

isProperType in class ReferenceBinding

Parameters:

admitCapture18 - request if CaptureBinding18 shuld be considered as a proper type. If unsure say 'true', only in Scope.greaterLowerBound(TypeBinding[], Scope, LookupEnvironment) CaptureBinding18 has to be excluded to prevent an NPE on a branch that heuristically tries to avoid inconsistent intersections.

isUnboundWildcard

public boolean isUnboundWildcard()

Description copied from class: TypeBinding

Returns true if wildcard type of the form '?' (no bound)

Overrides:

isUnboundWildcard in class TypeBinding

isWildcard

public boolean isWildcard()

Description copied from class: TypeBinding

Returns true if the type is a wildcard

Overrides:

isWildcard in class TypeBinding

readableName

public char[] readableName()

Description copied from class: ReferenceBinding

Answer the receiver's signature. NOTE: This method should only be used during/after code gen.

Overrides:

readableName in class ReferenceBinding

nullAnnotatedReadableName

public char[] nullAnnotatedReadableName(CompilerOptions options,
 boolean shortNames)

Description copied from class: TypeBinding

Answer a readable name (for error reporting) that includes nullness type annotations.

Overrides:

nullAnnotatedReadableName in class ReferenceBinding

See Also:

• invalid reference

  org.eclipse.jdt.internal.compiler.lookup.TypeBinding#nullAnnotatedReadableName(CompilerOptions,boolean)

shortReadableName

public char[] shortReadableName()

Overrides:

shortReadableName in class ReferenceBinding

signature

public char[] signature()

Description copied from class: TypeBinding

Answer the receiver classfile signature. Arrays and base types do not distinguish between signature() and constantPoolName(). NOTE: This method should only be used during/after code gen.

Overrides:

signature in class ReferenceBinding

See Also:

• invalid reference

  org.eclipse.jdt.internal.compiler.lookup.TypeBinding#signature()

sourceName

public char[] sourceName()

Overrides:

sourceName in class ReferenceBinding

superclass

public ReferenceBinding superclass()

Overrides:

superclass in class ReferenceBinding

superInterfaces

public ReferenceBinding[] superInterfaces()

Overrides:

superInterfaces in class ReferenceBinding

swapUnresolved

public void swapUnresolved(UnresolvedReferenceBinding unresolvedType,
 ReferenceBinding resolvedType,
 LookupEnvironment env)

Overrides:

swapUnresolved in class TypeBinding

toString

public String toString()

Overrides:

toString in class Object

See Also:

• Object.toString()

typeVariable

public TypeVariableBinding typeVariable()

Returns associated type variable, or null in case of inconsistency

unannotated

public TypeBinding unannotated()

Description copied from class: TypeBinding

Return this type minus its type annotations

Overrides:

unannotated in class TypeBinding

withoutToplevelNullAnnotation

public TypeBinding withoutToplevelNullAnnotation()

Description copied from class: TypeBinding

Return this type minus its toplevel null annotations. Any annotations on type arguments or bounds are retained.

Overrides:

withoutToplevelNullAnnotation in class TypeBinding

uncapture

public TypeBinding uncapture(Scope scope)

Description copied from class: TypeBinding

Perform capture "deconversion" on a given type

Overrides:

uncapture in class TypeBinding

mentionsAny

public boolean mentionsAny(TypeBinding[] parameters,
 int idx)

Description copied from class: TypeBinding

Does this type mention any of the given type parameters, except the one at position 'idx'?

Overrides:

mentionsAny in class TypeBinding

acceptsNonNullDefault

public boolean acceptsNonNullDefault()

Description copied from class: TypeBinding

Used to implement this sentence from o.e.j.annotation.DefaultLocation: "Wildcards and the use of type variables are always excluded from NonNullByDefault."

Overrides:

acceptsNonNullDefault in class ReferenceBinding

updateTagBits

public long updateTagBits()

Description copied from class: TypeBinding

Refresh some tagBits from details into the main type. Currently handled: TagBits.HasNullTypeAnnotation

Overrides:

updateTagBits in class TypeBinding

isNonDenotable

public boolean isNonDenotable()

Description copied from class: TypeBinding

Does this type lack a class file representation on its own ?

Overrides:

isNonDenotable in class TypeBinding