Package org.eclipse.xtext.xbase.typesystem.conformance

Class TypeConformanceComputer

java.lang.Object

org.eclipse.xtext.xbase.typesystem.conformance.RawTypeConformanceComputer

org.eclipse.xtext.xbase.typesystem.conformance.TypeConformanceComputer

public class TypeConformanceComputer
extends RawTypeConformanceComputer

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	TypeConformanceComputer.CommonSuperTypeFinder	Extracted helper class to compute the common super type of an arbitrary list of given types.
protected static class	TypeConformanceComputer.ListSizeMemento
protected static class	TypeConformanceComputer.MaxDistanceRawTypeAcceptor	Populates a Multiset with the maximum number of necessary steps from a given type to its super types.

Field Summary

Fields inherited from class org.eclipse.xtext.xbase.typesystem.conformance.RawTypeConformanceComputer

ALLOW_BOXING, ALLOW_BOXING_UNBOXING, ALLOW_FUNCTION_CONVERSION, ALLOW_PRIMITIVE_WIDENING, ALLOW_RAW_TYPE_CONVERSION, ALLOW_SYNONYMS, ALLOW_UNBOXING, AS_NESTED_TYPE_ARGUMENT, AS_TYPE_ARGUMENT, BOXING, DEMAND_CONVERSION, INCOMPATIBLE, PRIMITIVE_WIDENING, RAW_TYPE, RAW_TYPE_CONVERSION, SUBTYPE, SUCCESS, SYNONYM, UNBOUND_COMPUTATION_ADDS_HINTS, UNBOXING, UNKNOWN_TYPE_PARTICIPATED

Constructor Summary

Constructors

Constructor	Description
TypeConformanceComputer()

Method Summary

Modifier and Type	Method	Description
protected void	addComponentType(LightweightTypeReference reference, java.util.List<LightweightTypeReference> result)
protected LightweightTypeReference	conformsToAll(LightweightTypeReference type, java.util.List<LightweightTypeReference> types)
protected boolean	containsPrimitiveOrAnyReferences(java.util.List<LightweightTypeReference> types)
protected void	cumulateDistance(java.util.List<LightweightTypeReference> references, com.google.common.collect.Multimap<org.eclipse.xtext.common.types.JvmType,LightweightTypeReference> all, com.google.common.collect.Multiset<org.eclipse.xtext.common.types.JvmType> cumulatedDistance)	Keeps the cumulated distance for all the common raw super types of the given references.
protected int	doIsConformant(FunctionTypeReference left, FunctionTypeReference right, int flags)
protected int	doIsConformantOuterType(LightweightTypeReference left, LightweightTypeReference right, int flags)
protected int	doIsConformantTypeArguments(LightweightTypeReference left, LightweightTypeReference right, int flags)	This is a hook for the TypeConformanceComputer to implement the type argument check.
protected boolean	enhanceSuperType(java.util.List<LightweightTypeReference> superTypes, java.util.List<LightweightTypeReference> initiallyRequested, ParameterizedTypeReference result)	Deprecated. see TypeConformanceComputer.CommonSuperTypeFinder.enhanceSuperType(List, ParameterizedTypeReference)
LightweightTypeReference	getCommonParameterSuperType(java.util.List<LightweightTypeReference> types, java.util.List<LightweightTypeReference> initiallyRequested, ITypeReferenceOwner owner)	Deprecated. see TypeConformanceComputer.CommonSuperTypeFinder.getCommonParameterSuperType(List)
LightweightTypeReference	getCommonSuperType(java.util.List<LightweightTypeReference> types, ITypeReferenceOwner owner)	Compute the common super type for the given types.
protected LightweightTypeReference	getFirstForRawType(com.google.common.collect.Multimap<org.eclipse.xtext.common.types.JvmType,LightweightTypeReference> all, org.eclipse.xtext.common.types.JvmType rawType)
LightweightTypeReference	getMostSpecialType(java.util.List<LightweightTypeReference> candidates)
protected LightweightTypeReference	getSuperType(ParameterizedTypeReference current, org.eclipse.xtext.common.types.JvmType type)	This is a hook for the TypeConformanceComputer to provide the resolved super type.
protected LightweightTypeReference	getTypeParametersForSupertype(com.google.common.collect.Multimap<org.eclipse.xtext.common.types.JvmType,LightweightTypeReference> all, org.eclipse.xtext.common.types.JvmType rawType, ITypeReferenceOwner owner, java.util.List<LightweightTypeReference> initiallyRequested)	Deprecated. see TypeConformanceComputer.CommonSuperTypeFinder.getTypeParametersForSuperType(Multimap, JvmType, ITypeReferenceOwner, List)
protected void	initializeDistance(LightweightTypeReference firstType, com.google.common.collect.Multimap<org.eclipse.xtext.common.types.JvmType,LightweightTypeReference> all, com.google.common.collect.Multiset<org.eclipse.xtext.common.types.JvmType> cumulatedDistance)
protected void	inplaceSortByDistanceAndName(java.util.List<com.google.common.collect.Multiset.Entry<org.eclipse.xtext.common.types.JvmType>> candidates)
protected boolean	isClass(org.eclipse.xtext.common.types.JvmType type)
boolean	isConformant(LightweightTypeReference left, LightweightTypeReference right)
int	isConformant(LightweightTypeReference left, LightweightTypeReference right, int flags)
int	isConformant(LightweightTypeReference left, LightweightTypeReference right, TypeConformanceComputationArgument argument)
protected boolean	isRecursiveRequest(java.util.List<LightweightTypeReference> types, java.util.Set<java.lang.String> allNames, java.util.List<LightweightTypeReference> initiallyRequested)	Deprecated. see TypeConformanceComputer.CommonSuperTypeFinder.isRecursiveRequest(List, Set)
protected TypeConformanceComputer.CommonSuperTypeFinder	newCommonSuperTypeFinder(ITypeReferenceOwner owner)
protected java.util.List<LightweightTypeReference>	replacePrimitivesAndRemoveAnyReferences(java.util.List<LightweightTypeReference> types)
protected int	toFlags(TypeConformanceComputationArgument argument)

Methods inherited from class org.eclipse.xtext.xbase.typesystem.conformance.RawTypeConformanceComputer

addHintAndAnnounceSuccess, doIsConformant, doIsConformant, doIsConformant, doIsConformant, doIsConformant, doIsConformant, doIsConformant, doIsConformant, doIsConformant, doIsConformant, doIsConformant, doIsConformant, doIsConformant, doIsConformant, doIsConformant, doIsConformant, doIsConformantOuter, doIsConformantToAnyType, internalGetPrimitiveKindFromWrapper, isAssignableAsFunctionType, isConformantMergeResult, isConformantToConstraints, isSynonymConformant, setSynonymTypesProvider, tryResolveAndCheckConformance, tryResolveAndCheckConformance

Methods inherited from class java.lang.Object

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

Constructor Detail

TypeConformanceComputer

public TypeConformanceComputer()

Method Detail

isConformant

public boolean isConformant(LightweightTypeReference left,
                            LightweightTypeReference right)

isConformant

public int isConformant(LightweightTypeReference left,
                        LightweightTypeReference right,
                        TypeConformanceComputationArgument argument)

toFlags

protected int toFlags(TypeConformanceComputationArgument argument)

isConformant

public int isConformant(LightweightTypeReference left,
                        LightweightTypeReference right,
                        int flags)

Overrides:

isConformant in class RawTypeConformanceComputer

getSuperType

protected LightweightTypeReference getSuperType(ParameterizedTypeReference current,
                                                org.eclipse.xtext.common.types.JvmType type)

Description copied from class: RawTypeConformanceComputer

This is a hook for the TypeConformanceComputer to provide the resolved super type.

Overrides:

getSuperType in class RawTypeConformanceComputer

doIsConformantTypeArguments

protected int doIsConformantTypeArguments(LightweightTypeReference left,
                                          LightweightTypeReference right,
                                          int flags)

Description copied from class: RawTypeConformanceComputer

This is a hook for the TypeConformanceComputer to implement the type argument check.

Overrides:

doIsConformantTypeArguments in class RawTypeConformanceComputer

doIsConformantOuterType

protected int doIsConformantOuterType(LightweightTypeReference left,
                                      LightweightTypeReference right,
                                      int flags)

doIsConformant

protected int doIsConformant(FunctionTypeReference left,
                             FunctionTypeReference right,
                             int flags)

Overrides:

doIsConformant in class RawTypeConformanceComputer

getCommonSuperType

public LightweightTypeReference getCommonSuperType(java.util.List<LightweightTypeReference> types,
                                                   ITypeReferenceOwner owner)

Compute the common super type for the given types. May return null in case one of the types is primitive void but not all of them are.

See Also:

newCommonSuperTypeFinder(ITypeReferenceOwner)

newCommonSuperTypeFinder

protected TypeConformanceComputer.CommonSuperTypeFinder newCommonSuperTypeFinder(ITypeReferenceOwner owner)

isClass

protected boolean isClass(org.eclipse.xtext.common.types.JvmType type)

initializeDistance

protected void initializeDistance(LightweightTypeReference firstType,
                                  com.google.common.collect.Multimap<org.eclipse.xtext.common.types.JvmType,LightweightTypeReference> all,
                                  com.google.common.collect.Multiset<org.eclipse.xtext.common.types.JvmType> cumulatedDistance)

cumulateDistance

protected void cumulateDistance(java.util.List<LightweightTypeReference> references,
                                com.google.common.collect.Multimap<org.eclipse.xtext.common.types.JvmType,LightweightTypeReference> all,
                                com.google.common.collect.Multiset<org.eclipse.xtext.common.types.JvmType> cumulatedDistance)

Keeps the cumulated distance for all the common raw super types of the given references. Interfaces that are more directly implemented will get a lower total count than more general interfaces.

inplaceSortByDistanceAndName

protected void inplaceSortByDistanceAndName(java.util.List<com.google.common.collect.Multiset.Entry<org.eclipse.xtext.common.types.JvmType>> candidates)

replacePrimitivesAndRemoveAnyReferences

protected java.util.List<LightweightTypeReference> replacePrimitivesAndRemoveAnyReferences(java.util.List<LightweightTypeReference> types)

containsPrimitiveOrAnyReferences

protected boolean containsPrimitiveOrAnyReferences(java.util.List<LightweightTypeReference> types)

getFirstForRawType

protected LightweightTypeReference getFirstForRawType(com.google.common.collect.Multimap<org.eclipse.xtext.common.types.JvmType,LightweightTypeReference> all,
                                                      org.eclipse.xtext.common.types.JvmType rawType)

getTypeParametersForSupertype

@Deprecated
protected final LightweightTypeReference getTypeParametersForSupertype(com.google.common.collect.Multimap<org.eclipse.xtext.common.types.JvmType,LightweightTypeReference> all,
                                                                       org.eclipse.xtext.common.types.JvmType rawType,
                                                                       ITypeReferenceOwner owner,
                                                                       java.util.List<LightweightTypeReference> initiallyRequested)

Deprecated.

see TypeConformanceComputer.CommonSuperTypeFinder.getTypeParametersForSuperType(Multimap, JvmType, ITypeReferenceOwner, List)

Logic was moved to inner class CommonSuperTypeFinder in the context of bug 495314. This method is scheduled for deletion in Xtext 2.15

enhanceSuperType

@Deprecated
protected final boolean enhanceSuperType(java.util.List<LightweightTypeReference> superTypes,
                                         java.util.List<LightweightTypeReference> initiallyRequested,
                                         ParameterizedTypeReference result)

Deprecated.

see TypeConformanceComputer.CommonSuperTypeFinder.enhanceSuperType(List, ParameterizedTypeReference)

Logic was moved to inner class CommonSuperTypeFinder in the context of bug 495314. This method is scheduled for deletion in Xtext 2.15

getCommonParameterSuperType

@Deprecated
public final LightweightTypeReference getCommonParameterSuperType(java.util.List<LightweightTypeReference> types,
                                                                  java.util.List<LightweightTypeReference> initiallyRequested,
                                                                  ITypeReferenceOwner owner)

Deprecated.

see TypeConformanceComputer.CommonSuperTypeFinder.getCommonParameterSuperType(List)

Logic was moved to inner class CommonSuperTypeFinder in the context of bug 495314. This method is scheduled for deletion in Xtext 2.15

isRecursiveRequest

@Deprecated
protected final boolean isRecursiveRequest(java.util.List<LightweightTypeReference> types,
                                           java.util.Set<java.lang.String> allNames,
                                           java.util.List<LightweightTypeReference> initiallyRequested)

Deprecated.

see TypeConformanceComputer.CommonSuperTypeFinder.isRecursiveRequest(List, Set)

Logic was moved to inner class CommonSuperTypeFinder in the context of bug 495314. This method is scheduled for deletion in Xtext 2.15

getMostSpecialType

public LightweightTypeReference getMostSpecialType(java.util.List<LightweightTypeReference> candidates)

addComponentType

protected void addComponentType(LightweightTypeReference reference,
                                java.util.List<LightweightTypeReference> result)

conformsToAll

protected LightweightTypeReference conformsToAll(LightweightTypeReference type,
                                                 java.util.List<LightweightTypeReference> types)