net.bytebuddy.description.method

Class MethodDescription.AbstractBase

java.lang.Object

net.bytebuddy.description.ModifierReviewable.AbstractBase

net.bytebuddy.description.TypeVariableSource.AbstractBase

net.bytebuddy.description.method.MethodDescription.AbstractBase

All Implemented Interfaces:

AnnotationSource, ByteCodeElement, ByteCodeElement.Member, ByteCodeElement.TypeDependant<MethodDescription.InDefinedShape,MethodDescription.Token>, DeclaredByType, DeclaredByType.WithMandatoryDeclaration, MethodDescription, ModifierReviewable, ModifierReviewable.ForFieldDescription, ModifierReviewable.ForMethodDescription, ModifierReviewable.ForParameterDescription, ModifierReviewable.ForTypeDefinition, ModifierReviewable.OfAbstraction, ModifierReviewable.OfByteCodeElement, ModifierReviewable.OfEnumeration, NamedElement, NamedElement.WithDescriptor, NamedElement.WithGenericName, NamedElement.WithRuntimeName, TypeVariableSource

Direct Known Subclasses:

MethodDescription.InDefinedShape.AbstractBase, MethodDescription.TypeSubstituting, Transformer.ForMethod.TransformedMethod

Enclosing interface:

MethodDescription

public abstract static class MethodDescription.AbstractBase
extends TypeVariableSource.AbstractBase
implements MethodDescription

An abstract base implementation of a method description.

Nested Class Summary

Nested classes/interfaces inherited from interface net.bytebuddy.description.method.MethodDescription

MethodDescription.AbstractBase, MethodDescription.ForLoadedConstructor, MethodDescription.ForLoadedMethod, MethodDescription.InDefinedShape, MethodDescription.InGenericShape, MethodDescription.Latent, MethodDescription.SignatureToken, MethodDescription.Token, MethodDescription.TypeSubstituting, MethodDescription.TypeToken

Nested classes/interfaces inherited from interface net.bytebuddy.description.TypeVariableSource

TypeVariableSource.Visitor<T>

Nested classes/interfaces inherited from interface net.bytebuddy.description.ByteCodeElement

ByteCodeElement.Member, ByteCodeElement.TypeDependant<T extends ByteCodeElement.TypeDependant<?,S>,S extends ByteCodeElement.Token<S>>

Nested classes/interfaces inherited from interface net.bytebuddy.description.ModifierReviewable

ModifierReviewable.ForFieldDescription, ModifierReviewable.ForMethodDescription, ModifierReviewable.ForParameterDescription, ModifierReviewable.ForTypeDefinition, ModifierReviewable.OfAbstraction, ModifierReviewable.OfByteCodeElement, ModifierReviewable.OfEnumeration

Nested classes/interfaces inherited from interface net.bytebuddy.description.DeclaredByType

DeclaredByType.WithMandatoryDeclaration

Nested classes/interfaces inherited from interface net.bytebuddy.description.annotation.AnnotationSource

AnnotationSource.Empty, AnnotationSource.Explicit

Nested classes/interfaces inherited from interface net.bytebuddy.description.NamedElement

NamedElement.WithDescriptor, NamedElement.WithGenericName, NamedElement.WithOptionalName, NamedElement.WithRuntimeName

Field Summary

Fields inherited from interface net.bytebuddy.description.method.MethodDescription

CONSTRUCTOR_INTERNAL_NAME, TYPE_INITIALIZER_INTERNAL_NAME, TYPE_INITIALIZER_MODIFIER, UNDEFINED

Fields inherited from interface net.bytebuddy.description.NamedElement.WithDescriptor

NON_GENERIC_SIGNATURE

Fields inherited from interface net.bytebuddy.description.ModifierReviewable

EMPTY_MASK

Fields inherited from interface net.bytebuddy.description.NamedElement

EMPTY_NAME, NO_NAME

Constructor Summary

Constructors

Constructor and Description
AbstractBase()

Method Summary

Modifier and Type	Method and Description
<T> T	accept(TypeVariableSource.Visitor<T> visitor) Applies a visitor on this type variable source.
MethodDescription.SignatureToken	asSignatureToken() Returns a signature token representing this method.
MethodDescription.Token	asToken(ElementMatcher<? super TypeDescription> matcher) Returns a token representative of this type dependant.
MethodDescription.TypeToken	asTypeToken() Returns a type token that represents this method's raw return and parameter types.
boolean	equals(Object other)
int	getActualModifiers() Returns this method's actual modifiers as it is present in a class file, i.e.
int	getActualModifiers(boolean manifest) Returns this method's actual modifiers as it is present in a class file, i.e.
int	getActualModifiers(boolean manifest, Visibility visibility) Returns this method's actual modifiers as it is present in a class file, i.e.
String	getActualName() Returns the display name of this element as it is found in the source code.
<T> T	getDefaultValue(Class<T> type) Returns the default value but casts it to the given type.
String	getDescriptor() Returns the descriptor of this byte code element.
TypeVariableSource	getEnclosingSource() Returns the enclosing source of type variables that are valid in the scope of this type variable source.
String	getGenericSignature() Returns the generic signature of this byte code element.
String	getName() Returns the binary name of this byte code element.
int	getStackSize() Returns the size of the local variable array that is required for this method, i.e.
int	hashCode()
boolean	isAccessibleTo(TypeDescription typeDescription) Checks if this element is accessible from a given type.
boolean	isBridgeCompatible(MethodDescription.TypeToken typeToken) Validates that the supplied type token can implement a bridge method to this method.
boolean	isConstantBootstrap() Checks if this method is a valid bootstrap method for an constantdynamic call.
boolean	isConstantBootstrap(List<? extends TypeDefinition> arguments) Checks if this method is a valid bootstrap method for a constantdynamic call.
boolean	isConstructor() Checks if this method description represents a constructor.
boolean	isDefaultMethod() Checks if this method represents a default (defender) method.
boolean	isDefaultValue() Checks if this method is capable of defining a default annotation value.
boolean	isDefaultValue(AnnotationValue<?,?> annotationValue) Checks if the given value can describe a default annotation value for this method.
boolean	isGenerified() Checks if this type variable source has a generic declaration.
boolean	isInferrable() Returns true if type variables declared by this type variable source allow dynamic type inference.
boolean	isInvokableOn(TypeDescription typeDescription) Asserts if this method is invokable on an instance of the given type, i.e.
boolean	isInvokeBootstrap() Checks if this method is a valid bootstrap method for an invokedynamic call.
boolean	isInvokeBootstrap(List<? extends TypeDefinition> arguments) Checks if this method is a valid bootstrap method for an invokedynamic call.
boolean	isMethod() Checks if this method description represents a method, i.e.
boolean	isSpecializableFor(TypeDescription targetType) Checks if this method can be called using the INVOKESPECIAL for a given type.
boolean	isTypeInitializer() Checks if this method is a type initializer.
boolean	isVirtual() Verifies if this method describes a virtual method, i.e.
boolean	isVisibleTo(TypeDescription typeDescription) Checks if this element is visible from a given type.
boolean	represents(Constructor<?> constructor) Verifies if a method description represents a given loaded constructor.
boolean	represents(Method method) Verifies if a method description represents a given loaded method.
String	toGenericString() Returns a generic string of this byte code element.
protected String	toSafeString() Returns a Object.toString() representation that does not attempt to resolve any type variables to avoid stack overflow exceptions.
String	toString()

Methods inherited from class net.bytebuddy.description.TypeVariableSource.AbstractBase

findExpectedVariable, findVariable

Methods inherited from class net.bytebuddy.description.ModifierReviewable.AbstractBase

getEnumerationState, getFieldManifestation, getFieldPersistence, getMethodManifestation, getMethodStrictness, getOwnership, getParameterManifestation, getProvisioningState, getSynchronizationState, getSyntheticState, getTypeManifestation, getVisibility, isAbstract, isAnnotation, isBridge, isDeprecated, isEnum, isFinal, isInterface, isMandated, isNative, isPackagePrivate, isPrivate, isProtected, isPublic, isStatic, isStrict, isSynchronized, isSynthetic, isTransient, isVarArgs, isVolatile

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.bytebuddy.description.method.MethodDescription

getDefaultValue, getExceptionTypes, getParameters, getReceiverType, getReturnType

Methods inherited from interface net.bytebuddy.description.TypeVariableSource

findExpectedVariable, findVariable, getTypeVariables

Methods inherited from interface net.bytebuddy.description.ModifierReviewable.ForMethodDescription

getMethodManifestation, getMethodStrictness, getSynchronizationState, isBridge, isNative, isStrict, isSynchronized, isVarArgs

Methods inherited from interface net.bytebuddy.description.ModifierReviewable.OfAbstraction

isAbstract

Methods inherited from interface net.bytebuddy.description.DeclaredByType.WithMandatoryDeclaration

getDeclaringType

Methods inherited from interface net.bytebuddy.description.ModifierReviewable.OfByteCodeElement

getOwnership, getVisibility, isDeprecated, isPackagePrivate, isPrivate, isProtected, isPublic, isStatic

Methods inherited from interface net.bytebuddy.description.ModifierReviewable

getModifiers, getSyntheticState, isFinal, isSynthetic

Methods inherited from interface net.bytebuddy.description.annotation.AnnotationSource

getDeclaredAnnotations

Methods inherited from interface net.bytebuddy.description.NamedElement.WithRuntimeName

getInternalName

Methods inherited from interface net.bytebuddy.description.ByteCodeElement.TypeDependant

asDefined

Constructor Detail

AbstractBase

public AbstractBase()

Method Detail

getStackSize

public int getStackSize()

Returns the size of the local variable array that is required for this method, i.e. the size of all parameters if they were loaded on the stack including a reference to this if this method represented a non-static method.

Specified by:

getStackSize in interface MethodDescription

Returns:

The size of this method on the operand stack.

isMethod

public boolean isMethod()

Checks if this method description represents a method, i.e. not a constructor or a type initializer.

Specified by:

isMethod in interface MethodDescription

Returns:

true if this method description represents a Java method.

isConstructor

public boolean isConstructor()

Checks if this method description represents a constructor.

Specified by:

isConstructor in interface MethodDescription

Returns:

true if this method description represents a constructor.

isTypeInitializer

public boolean isTypeInitializer()

Checks if this method is a type initializer.

Specified by:

isTypeInitializer in interface MethodDescription

Returns:

true if this method description represents a type initializer.

represents

public boolean represents(Method method)

Verifies if a method description represents a given loaded method.

Specified by:

represents in interface MethodDescription

Parameters:

method - The method to be checked.

Returns:

true if this method description represents the given loaded method.

represents

public boolean represents(Constructor<?> constructor)

Verifies if a method description represents a given loaded constructor.

Specified by:

represents in interface MethodDescription

Parameters:

constructor - The constructor to be checked.

Returns:

true if this method description represents the given loaded constructor.

getName

public String getName()

Returns the binary name of this byte code element. If no well-defined internal name is known for this element, the actual name is returned.

Specified by:

getName in interface NamedElement.WithRuntimeName

Returns:

The binary ame of this byte code element as visible from within a running Java application.

getActualName

public String getActualName()

Returns the display name of this element as it is found in the source code. If no such name exists, an empty string is returned.

Specified by:

getActualName in interface NamedElement

Returns:

The name of this element as given in a Java program's source code.

getDescriptor

public String getDescriptor()

Returns the descriptor of this byte code element.

Specified by:

getDescriptor in interface NamedElement.WithDescriptor

Returns:

The descriptor of this byte code element.

getGenericSignature

@MaybeNull
public String getGenericSignature()

Returns the generic signature of this byte code element. If this element does not reference generic types or references malformed generic types, null is returned as a signature.

Specified by:

getGenericSignature in interface NamedElement.WithDescriptor

Returns:

The generic signature or null if this element is not generic.

getActualModifiers

public int getActualModifiers()

Returns this method's actual modifiers as it is present in a class file, i.e. includes a flag if this method is marked Deprecated.

Specified by:

getActualModifiers in interface MethodDescription

Returns:

The method's actual modifiers.

getActualModifiers

public int getActualModifiers(boolean manifest)

Returns this method's actual modifiers as it is present in a class file, i.e. includes a flag if this method is marked Deprecated and adjusts the modifiers for being abstract or not.

Specified by:

getActualModifiers in interface MethodDescription

Parameters:

manifest - true if the method should be treated as non-abstract.

Returns:

The method's actual modifiers.

getActualModifiers

public int getActualModifiers(boolean manifest,
                              Visibility visibility)

Returns this method's actual modifiers as it is present in a class file, i.e. includes a flag if this method is marked Deprecated and adjusts the modifiers for being abstract or not. Additionally, this method resolves a required minimal visibility.

Specified by:

getActualModifiers in interface MethodDescription

Parameters:

manifest - true if the method should be treated as non-abstract.

visibility - The minimal visibility to enforce for this method.

Returns:

The method's actual modifiers.

isVisibleTo

public boolean isVisibleTo(TypeDescription typeDescription)

Checks if this element is visible from a given type. Visibility is a wider criteria then accessibility which can be checked by ByteCodeElement.isAccessibleTo(TypeDescription). Visibility allows the invocation of a method on itself or on external instances.

Note: A method or field might define a signature that includes types that are not visible to a type. Such methods can be legally invoked from this type and can even be implemented as bridge methods by this type. It is however not legal to declare a method with invisible types in its signature that are not bridges what might require additional validation.

Important: Virtual byte code elements, i.e. virtual methods, are only considered visible if the type they are invoked upon is visible to a given type. The visibility of such virtual members can therefore not be determined by only investigating the invoked method but requires an additional check of the target type.

Specified by:

isVisibleTo in interface ByteCodeElement

Parameters:

typeDescription - The type which is checked for its visibility of this element.

Returns:

true if this element is visible for typeDescription.

isAccessibleTo

public boolean isAccessibleTo(TypeDescription typeDescription)

Checks if this element is accessible from a given type. Accessibility is a more narrow criteria then visibility which can be checked by ByteCodeElement.isVisibleTo(TypeDescription). Accessibility allows the invocation of a method on external instances or on itself. Methods that can be invoked from within an instance might however not be considered accessible.

Note: A method or field might define a signature that includes types that are not visible to a type. Such methods can be legally invoked from this type and can even be implemented as bridge methods by this type. It is however not legal to declare a method with invisible types in its signature that are not bridges what might require additional validation.

Important: Virtual byte code elements, i.e. virtual methods, are only considered visible if the type they are invoked upon is visible to a given type. The visibility of such virtual members can therefore not be determined by only investigating the invoked method but requires an additional check of the target type.

Specified by:

isAccessibleTo in interface ByteCodeElement

Parameters:

typeDescription - The type which is checked for its accessibility of this element.

Returns:

true if this element is accessible for typeDescription.

isVirtual

public boolean isVirtual()

Verifies if this method describes a virtual method, i.e. a method that is inherited by a sub type of this type.

Specified by:

isVirtual in interface MethodDescription

Returns:

true if this method is virtual.

isDefaultMethod

public boolean isDefaultMethod()

Checks if this method represents a default (defender) method.

Specified by:

isDefaultMethod in interface MethodDescription

Returns:

true if this method is a default method.

isSpecializableFor

public boolean isSpecializableFor(TypeDescription targetType)

Checks if this method can be called using the INVOKESPECIAL for a given type.

Specified by:

isSpecializableFor in interface MethodDescription

Parameters:

targetType - The type o

Returns:

true if this method can be called using the INVOKESPECIAL instruction using the given type.

getDefaultValue

@MaybeNull
public <T> T getDefaultValue(Class<T> type)

Returns the default value but casts it to the given type. If the type differs from the value, a ClassCastException is thrown.

Specified by:

getDefaultValue in interface MethodDescription

Type Parameters:

T - The type to cast the default value to.

Parameters:

type - The type to cast the default value to.

Returns:

The casted default value.

isInvokableOn

public boolean isInvokableOn(TypeDescription typeDescription)

Asserts if this method is invokable on an instance of the given type, i.e. the method is an instance method or a constructor and the method is visible to the type and can be invoked on the given instance.

Specified by:

isInvokableOn in interface MethodDescription

Parameters:

typeDescription - The type to check.

Returns:

true if this method is invokable on an instance of the given type.

isInvokeBootstrap

public boolean isInvokeBootstrap()

Checks if this method is a valid bootstrap method for an invokedynamic call.

Specified by:

isInvokeBootstrap in interface MethodDescription

Returns:

true if this method is a valid bootstrap method for an invokedynamic call.

isInvokeBootstrap

public boolean isInvokeBootstrap(List<? extends TypeDefinition> arguments)

Checks if this method is a valid bootstrap method for an invokedynamic call.

Specified by:

isInvokeBootstrap in interface MethodDescription

Parameters:

arguments - The types of the explicit arguments that are supplied to the bootstrap method.

Returns:

true if this method is a valid bootstrap method for an invokedynamic call.

isConstantBootstrap

public boolean isConstantBootstrap()

Checks if this method is a valid bootstrap method for an constantdynamic call.

Specified by:

isConstantBootstrap in interface MethodDescription

Returns:

true if this method is a valid bootstrap method for an constantdynamic call.

isConstantBootstrap

public boolean isConstantBootstrap(List<? extends TypeDefinition> arguments)

Checks if this method is a valid bootstrap method for a constantdynamic call.

Specified by:

isConstantBootstrap in interface MethodDescription

Parameters:

arguments - The types of the explicit arguments that are supplied to the bootstrap method.

Returns:

true if this method is a valid bootstrap method for an constantdynamic call.

isDefaultValue

public boolean isDefaultValue()

Checks if this method is capable of defining a default annotation value.

Specified by:

isDefaultValue in interface MethodDescription

Returns:

true if it is possible to define a default annotation value for this method.

isDefaultValue

public boolean isDefaultValue(AnnotationValue<?,?> annotationValue)

Checks if the given value can describe a default annotation value for this method.

Specified by:

isDefaultValue in interface MethodDescription

Parameters:

annotationValue - The value that describes the default annotation value for this method.

Returns:

true if the given value can describe a default annotation value for this method.

getEnclosingSource

@MaybeNull
public TypeVariableSource getEnclosingSource()

Returns the enclosing source of type variables that are valid in the scope of this type variable source.

Specified by:

getEnclosingSource in interface TypeVariableSource

Returns:

The enclosing source or null if no such source exists.

isInferrable

public boolean isInferrable()

Returns true if type variables declared by this type variable source allow dynamic type inference.

Specified by:

isInferrable in interface TypeVariableSource

Returns:

true if type variables declared by this type variable source allow dynamic type inference.

accept

public <T> T accept(TypeVariableSource.Visitor<T> visitor)

Applies a visitor on this type variable source.

Specified by:

accept in interface TypeVariableSource

Type Parameters:

T - The visitor's return type.

Parameters:

visitor - The visitor to apply.

Returns:

The visitor's return value.

isGenerified

public boolean isGenerified()

Checks if this type variable source has a generic declaration. This means:

• A type declares type variables or is an inner class of a type with a generic declaration.
• A method declares at least one type variable.
• A type is a class that is declared within a method with a generic declaration.

Specified by:

isGenerified in interface TypeVariableSource

Returns:

true if this type code element has a generic declaration.

asToken

public MethodDescription.Token asToken(ElementMatcher<? super TypeDescription> matcher)

Returns a token representative of this type dependant. All types that are matched by the supplied matcher are replaced by TargetType descriptions.

Specified by:

asToken in interface ByteCodeElement.TypeDependant<MethodDescription.InDefinedShape,MethodDescription.Token>

Parameters:

matcher - A matcher to identify types to be replaced by TargetType descriptions.

Returns:

A token representative of this type dependant.

asSignatureToken

public MethodDescription.SignatureToken asSignatureToken()

Returns a signature token representing this method.

Specified by:

asSignatureToken in interface MethodDescription

Returns:

A signature token representing this method.

asTypeToken

public MethodDescription.TypeToken asTypeToken()

Returns a type token that represents this method's raw return and parameter types.

Specified by:

asTypeToken in interface MethodDescription

Returns:

A type token that represents this method's raw return and parameter types.

isBridgeCompatible

public boolean isBridgeCompatible(MethodDescription.TypeToken typeToken)

Validates that the supplied type token can implement a bridge method to this method.

Specified by:

isBridgeCompatible in interface MethodDescription

Parameters:

typeToken - A type token representing a potential bridge method to this method.

Returns:

true if the supplied type token can represent a bridge method to this method.

hashCode

@CachedReturnPlugin.Enhance(value="hashCode")
public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(@MaybeNull
                      Object other)

Overrides:

equals in class Object

toGenericString

public String toGenericString()

Returns a generic string of this byte code element.

Specified by:

toGenericString in interface NamedElement.WithGenericName

Returns:

A generic string of this byte code element.

toString

public String toString()

Overrides:

toString in class Object

toSafeString

protected String toSafeString()

Description copied from class: TypeVariableSource.AbstractBase

Returns a Object.toString() representation that does not attempt to resolve any type variables to avoid stack overflow exceptions.

Specified by:

toSafeString in class TypeVariableSource.AbstractBase

Returns:

A safe string representation.