randoop.types

Class LazyReferenceBound

java.lang.Object

randoop.types.ParameterBound

randoop.types.ReferenceBound

randoop.types.LazyReferenceBound

class LazyReferenceBound
extends ReferenceBound

A lazy representation of a type bound in which a type variable occurs. Similar in purpose to LazyParameterBound, but this class uses ReferenceType as the bound instead of java.lang.reflect.Type. Also, prevents access to recursive type bounds, that would otherwise result in nonterminating calls to getTypeParameters().

Objects of this class are created by LazyParameterBound.substitute(Substitution) when the substitution would replace a type variable with another type variable.

Constructor Summary

Constructors

Constructor and Description
LazyReferenceBound(ReferenceType boundType)

Method Summary

Modifier and Type	Method and Description
ReferenceBound	applyCaptureConversion() Applies a capture conversion to any wildcard arguments in the type of this bound.
java.util.List<TypeVariable>	getTypeParameters() Returns any type parameters in the type of this bound.
int	hashCode()
boolean	isLowerBound(Type argType, Substitution substitution) Indicates whether this bound is a lower bound of the given argument type.
boolean	isSubtypeOf(ParameterBound boundType) Indicates whether the type of this bound is a subtype of the type of the given bound.
(package private) boolean	isUpperBound(ParameterBound bound, Substitution substitution) Indicates whether this bound is an upper bound on the type of the given bound with respect to the type substitution.
boolean	isUpperBound(Type argType, Substitution substitution) Determines if this bound is an upper bound for the argument type.
ReferenceBound	substitute(Substitution substitution) Applies the given substitution to this type bound by replacing type variables.

Methods inherited from class randoop.types.ReferenceBound

equals, getBoundType, hasCaptureVariable, hasWildcard, isGeneric, isObject, isVariable, toString

Methods inherited from class randoop.types.ParameterBound

forType, forType, forTypes, isGeneric, isLowerBound, isTypeVariable

Methods inherited from class java.lang.Object

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

Constructor Detail

LazyReferenceBound

LazyReferenceBound(ReferenceType boundType)

Method Detail

hashCode

public int hashCode()

LazyReferenceBound can be part of a recursive type, and so the hash code is based on the string representation of the bound to avoid recursive calls on hashCode().

Overrides:

hashCode in class ReferenceBound

Returns:

the hashCode for the string representation of this bound

substitute

public ReferenceBound substitute(Substitution substitution)

Description copied from class: ParameterBound

Applies the given substitution to this type bound by replacing type variables.

Specified by:

substitute in class ReferenceBound

Parameters:

substitution - the type substitution

Returns:

this bound with the type after the substitution has been applied

applyCaptureConversion

public ReferenceBound applyCaptureConversion()

Description copied from class: ParameterBound

Applies a capture conversion to any wildcard arguments in the type of this bound.

Specified by:

applyCaptureConversion in class ReferenceBound

Returns:

this type with any wildcards replaced by capture conversion

See Also:

ReferenceType.applyCaptureConversion()

getTypeParameters

public java.util.List<TypeVariable> getTypeParameters()

Description copied from class: ParameterBound

Returns any type parameters in the type of this bound.

Specified by:

getTypeParameters in class ParameterBound

Returns:

the list of TypeVariable objects in this bound

isLowerBound

public boolean isLowerBound(Type argType,
                            Substitution substitution)

Description copied from class: ParameterBound

Indicates whether this bound is a lower bound of the given argument type.

Specified by:

isLowerBound in class ParameterBound

Parameters:

argType - the concrete argument type

substitution - the substitution

Returns:

true if this bound is a subtype of the given type

isSubtypeOf

public boolean isSubtypeOf(ParameterBound boundType)

Description copied from class: ParameterBound

Indicates whether the type of this bound is a subtype of the type of the given bound.

Specified by:

isSubtypeOf in class ParameterBound

Parameters:

boundType - the other bound

Returns:

true if this type is a subtype of the other bound, false otherwise

isUpperBound

public boolean isUpperBound(Type argType,
                            Substitution substitution)

Description copied from class: ParameterBound

Determines if this bound is an upper bound for the argument type.

Specified by:

isUpperBound in class ParameterBound

Parameters:

argType - the concrete argument type

substitution - the substitution

Returns:

true if this bound is satisfied by the concrete type when the substitution is used on the bound, false otherwise

isUpperBound

boolean isUpperBound(ParameterBound bound,
                     Substitution substitution)

Description copied from class: ParameterBound

Indicates whether this bound is an upper bound on the type of the given bound with respect to the type substitution.

Specified by:

isUpperBound in class ParameterBound

Parameters:

bound - the other bound

substitution - the type substitution

Returns:

true if this bound is an upper bound on the type of the given bound, false otherwise