java.lang.Object
- com.google.javascript.rhino.jstype.JSType
- - com.google.javascript.rhino.jstype.ObjectType
  - - com.google.javascript.rhino.jstype.ProxyObjectType

Direct Known Subclasses:

NamedType, TemplateType, TemplatizedType
```
public class ProxyObjectType
extends ObjectType
```
An object type which uses composition to delegate all calls.

See Also:

NamedType, TemplatizedType

Nested Class Summary
- Nested classes/interfaces inherited from class com.google.javascript.rhino.jstype.JSType
  JSType.HasPropertyKind, JSType.Nullability, JSType.SubtypingMode, JSType.TypePair

Field Summary
- Fields inherited from class com.google.javascript.rhino.jstype.JSType
  templateTypeMap

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`canBeCalled()`	This predicate is used to test whether a given type can be used as the 'function' in a function call.
`JSType`	`collapseUnion()`	Gets the least supertype of this that's not a union.
`protected JSType`	`findPropertyTypeWithoutConsideringTemplateTypes(java.lang.String propertyName)`	Looks up a property on this type, but without properly replacing any templates in the result.
`FunctionType`	`getConstructor()`	Gets this object's constructor.
`java.lang.Iterable<ObjectType>`	`getCtorExtendedInterfaces()`	Gets the interfaces extended by the interface associated with this type.
`java.lang.Iterable<ObjectType>`	`getCtorImplementedInterfaces()`	Gets the interfaces implemented by the ctor associated with this type.
`ObjectType`	`getImplicitPrototype()`	Gets the implicit prototype (a.k.a.
`JSDocInfo`	`getJSDocInfo()`	Gets the docInfo for this type.
`FunctionType`	`getOwnerFunction()`
`JSType.HasPropertyKind`	`getPropertyKind(java.lang.String propertyName, boolean autobox)`	Checks whether the property is present on the object.
`java.lang.String`	`getReferenceName()`	Gets the reference name for this object.
`int`	`getTemplateParamCount()`	Return the number of template parameters declared for this type.
`TemplateTypeMap`	`getTemplateTypeMap()`	Returns the template type map associated with this type.
`com.google.common.collect.ImmutableList<JSType>`	`getTemplateTypes()`	Gets the declared default element type.
`JSType`	`getTypeOfThis()`
`boolean`	`hasAnyTemplateTypesInternal()`
`boolean`	`isAllType()`
`boolean`	`isCheckedUnknownType()`
`boolean`	`isConstructor()`	Whether this type is a `FunctionType` that is a constructor or a named type that points to such a type.
`boolean`	`isDict()`	Returns true iff `this` can be a `dict`.
`boolean`	`isInstanceType()`	Whether this type is an Instance object of some constructor.
`boolean`	`isInterface()`	Whether this type is a `FunctionType` that is an interface or a named type that points to such a type.
`boolean`	`isNativeObjectType()`	Whether this is a built-in object.
`boolean`	`isNominalType()`	Whether this type is a nominal type (a named instance object or a named enum).
`boolean`	`isNoObjectType()`
`boolean`	`isNoResolvedType()`
`boolean`	`isNoType()`
`boolean`	`isNullable()`	Tests whether this type is nullable.
`boolean`	`isOrdinaryFunction()`	Whether this type is a `FunctionType` that is an ordinary function (i.e.
`boolean`	`isStruct()`	Returns true iff `this` can be a `struct`.
`boolean`	`isStructuralType()`
`boolean`	`isUnknownType()`	We treat this as the unknown type if any of its implicit prototype properties is unknown.
`boolean`	`isVoidable()`	Tests whether this type is voidable.
`boolean`	`loosenTypecheckingDueToForwardReferencedSupertype()`	During type definition, was one of the supertypes of this type a forward reference?
`void`	`matchConstraint(JSType constraint)`	Modify this type so that it matches the specified type.
`boolean`	`matchesNumberContext()`	This predicate is used to test whether a given type can appear in a numeric context, such as an operand of a multiply operator.
`boolean`	`matchesObjectContext()`	This predicate is used to test whether a given type can appear in an `Object` context, such as the expression in a with statement.
`boolean`	`matchesStringContext()`	This predicate is used to test whether a given type can appear in a `String` context, such as an operand of a string concat (+) operator.
`boolean`	`matchesSymbolContext()`	This predicate is used to test whether a given type can appear in a `symbol` context such as property access.
`boolean`	`removeProperty(java.lang.String name)`	Removes the declared or inferred property from this ObjectType.
`void`	`setJSDocInfo(JSDocInfo info)`	Sets the docInfo for this type from the given `JSDocInfo`.
`void`	`setPropertyJSDocInfo(java.lang.String propertyName, JSDocInfo info)`	Sets the docInfo for the specified property from the `JSDocInfo` on its definition.
`boolean`	`setValidator(com.google.common.base.Predicate<JSType> validator)`	Certain types have constraints on them at resolution-time.
`TernaryValue`	`testForEquality(JSType that)`	Compares `this` and `that`.
`EnumElementType`	`toMaybeEnumElementType()`	Downcasts this to an EnumElementType, or returns null if this is not an EnumElementType.
`EnumType`	`toMaybeEnumType()`	Downcasts this to an EnumType, or returns null if this is not an EnumType.
`FunctionType`	`toMaybeFunctionType()`	Downcasts this to a FunctionType, or returns null if this is not a function.
`RecordType`	`toMaybeRecordType()`	Downcasts this to a RecordType, or returns null if this is not a RecordType.
`TemplateType`	`toMaybeTemplateType()`	Downcasts this to a TemplateType, or returns null if this is not a template type.
`TemplatizedType`	`toMaybeTemplatizedType()`	Downcasts this to a TemplatizedType, or returns null if this is not a templatized type.
`UnionType`	`toMaybeUnionType()`	Downcasts this to a UnionType, or returns null if this is not a UnionType.
`<T> T`	`visit(Visitor<T> visitor)`	Visit this type with the given visitor.
`<T> T`	`visitReferenceType(Visitor<T> visitor)`

Methods inherited from class com.google.javascript.rhino.jstype.JSType
areIdentical, areSimilar, assertFunctionType, assertObjectType, autobox, autoboxesTo, canCastTo, canTestForEqualityWith, canTestForShallowEqualityWith, containsReferenceAncestor, dereference, differsFrom, equals, findPropertyType, getEnumeratedTypeOfEnumElement, getGreatestSubtype, getLeastSupertype, getPropertyKind, getRestrictedTypeGivenOutcome, getTypeParameters, getTypesUnderEquality, getTypesUnderInequality, getTypesUnderShallowEquality, getTypesUnderShallowInequality, getUnionMembers, hasAnyTemplateTypes, hasDisplayName, hashCode, hasProperty, isArrayType, isBigIntObjectType, isBigIntOrNumber, isBigIntValueType, isBooleanObjectType, isBooleanValueType, isBoxableScalar, isDateType, isEmptyType, isEnumElementType, isEnumType, isExplicitlyVoidable, isFunctionType, isGlobalThisType, isLiteralObject, isNamedType, isNominalConstructorOrInterface, isNullType, isNumber, isNumberObjectType, isNumberValueType, isObjectType, isOnlyBigInt, isRawTypeOfTemplatizedType, isRecordType, isRegexpType, isResolved, isSomeUnknownType, isString, isStringObjectType, isStringValueType, isStructuralInterface, isSubtype, isSubtype, isSubtypeOf, isSubtypeOf, isSubtypeWithoutStructuralTyping, isSuccessfullyResolved, isSymbol, isSymbolObjectType, isSymbolValueType, isTemplateType, isTemplatizedType, isUnionType, isUnresolved, isUnresolvedOrResolvedUnknown, isUnsuccessfullyResolved, isVoidType, mergeSupertypeTemplateTypes, resolve, restrictByNotNull, restrictByNotNullOrUndefined, restrictByNotUndefined, toAnnotationString, toMaybeFunctionType, toMaybeNamedType, toMaybeObjectType, toObjectType, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Method Detail
  - getPropertyKind
```
public final JSType.HasPropertyKind getPropertyKind(java.lang.String propertyName,
                                                    boolean autobox)
```
    Description copied from class: JSType
    
    Checks whether the property is present on the object.
    
    Overrides:
    
    getPropertyKind in class ObjectType
    
    Parameters:
    
    propertyName - The property name.
    
    autobox - Whether to check for the presents on an autoboxed type
  - loosenTypecheckingDueToForwardReferencedSupertype
```
public final boolean loosenTypecheckingDueToForwardReferencedSupertype()
```
    Description copied from class: JSType
    
    During type definition, was one of the supertypes of this type a forward reference?
    This is a hack to work around the fact that inheritance chains and template types aren't wired up correctly when this happens, which causes various false positives in checks. The known bugs associated are b/145145406, b/144327372, and b/132980305.
    This method should only be used to suppress potential false positives caused by one of the above bugs, in the case where we think suppressing typechecking is preferable to emitting a false positive.
    
    Overrides:
    
    loosenTypecheckingDueToForwardReferencedSupertype in class JSType
  - setValidator
```
public boolean setValidator(com.google.common.base.Predicate<JSType> validator)
```
    Description copied from class: JSType
    
    Certain types have constraints on them at resolution-time. For example, a type in an @extends annotation must be an object. Clients should inject a validator that emits a warning if the type does not validate, and return false.
    
    Overrides:
    
    setValidator in class JSType
  - getReferenceName
```
public java.lang.String getReferenceName()
```
    Description copied from class: ObjectType
    
    Gets the reference name for this object. This includes named types like constructors, prototypes, and enums. It notably does not include literal types like strings and booleans and structural types.
    Returning an empty string means something different than returning null. An empty string may indicate an anonymous constructor, which we treat differently than a literal type without a reference name. e.g. in InstanceObjectType.appendTo(TypeStringBuilder)
    
    Specified by:
    
    getReferenceName in class ObjectType
    
    Returns:
    
    the object's name or null if this is an anonymous object
  - matchesNumberContext
```
public final boolean matchesNumberContext()
```
    Description copied from class: JSType
    
    This predicate is used to test whether a given type can appear in a numeric context, such as an operand of a multiply operator.
    
    Overrides:
    
    matchesNumberContext in class JSType
  - matchesStringContext
```
public final boolean matchesStringContext()
```
    Description copied from class: JSType
    
    This predicate is used to test whether a given type can appear in a String context, such as an operand of a string concat (+) operator. All types have at least the potential for converting to String. When we add externally defined types, such as a browser OM, we may choose to add types that do not automatically convert to String.
    
    Overrides:
    
    matchesStringContext in class JSType
  - matchesSymbolContext
```
public final boolean matchesSymbolContext()
```
    Description copied from class: JSType
    
    This predicate is used to test whether a given type can appear in a symbol context such as property access.
    
    Overrides:
    
    matchesSymbolContext in class JSType
  - matchesObjectContext
```
public final boolean matchesObjectContext()
```
    Description copied from class: JSType
    
    This predicate is used to test whether a given type can appear in an Object context, such as the expression in a with statement. Most types we will encounter, except notably null, have at least the potential for converting to Object. Host defined objects can get peculiar.
    
    Overrides:
    
    matchesObjectContext in class JSType
  - canBeCalled
```
public final boolean canBeCalled()
```
    Description copied from class: JSType
    
    This predicate is used to test whether a given type can be used as the 'function' in a function call.
    
    Overrides:
    
    canBeCalled in class JSType
    
    Returns:
    
    true if this type might be callable.
  - isStructuralType
```
public final boolean isStructuralType()
```
    Overrides:
    
    isStructuralType in class ObjectType
  - isNoType
```
public final boolean isNoType()
```
    Overrides:
    
    isNoType in class JSType
  - isNoObjectType
```
public final boolean isNoObjectType()
```
    Overrides:
    
    isNoObjectType in class JSType
  - isNoResolvedType
```
public final boolean isNoResolvedType()
```
    Overrides:
    
    isNoResolvedType in class JSType
  - isUnknownType
```
public final boolean isUnknownType()
```
    Description copied from class: ObjectType
    
    We treat this as the unknown type if any of its implicit prototype properties is unknown.
    
    Overrides:
    
    isUnknownType in class ObjectType
  - isCheckedUnknownType
```
public final boolean isCheckedUnknownType()
```
    Overrides:
    
    isCheckedUnknownType in class JSType
  - isNullable
```
public final boolean isNullable()
```
    Description copied from class: JSType
    
    Tests whether this type is nullable.
    
    Overrides:
    
    isNullable in class JSType
  - isVoidable
```
public final boolean isVoidable()
```
    Description copied from class: JSType
    
    Tests whether this type is voidable.
    
    Overrides:
    
    isVoidable in class JSType
  - toMaybeEnumType
```
public final EnumType toMaybeEnumType()
```
    Description copied from class: JSType
    
    Downcasts this to an EnumType, or returns null if this is not an EnumType.
    
    Overrides:
    
    toMaybeEnumType in class JSType
  - isConstructor
```
public final boolean isConstructor()
```
    Description copied from class: JSType
    
    Whether this type is a FunctionType that is a constructor or a named type that points to such a type.
    
    Overrides:
    
    isConstructor in class JSType
  - isNominalType
```
public boolean isNominalType()
```
    Description copied from class: JSType
    
    Whether this type is a nominal type (a named instance object or a named enum).
    
    Overrides:
    
    isNominalType in class JSType
  - isInstanceType
```
public final boolean isInstanceType()
```
    Description copied from class: JSType
    
    Whether this type is an Instance object of some constructor. Does not necessarily mean this is an InstanceObjectType.
    
    Overrides:
    
    isInstanceType in class JSType
  - isInterface
```
public final boolean isInterface()
```
    Description copied from class: JSType
    
    Whether this type is a FunctionType that is an interface or a named type that points to such a type.
    
    Overrides:
    
    isInterface in class JSType
  - isOrdinaryFunction
```
public final boolean isOrdinaryFunction()
```
    Description copied from class: JSType
    
    Whether this type is a FunctionType that is an ordinary function (i.e. not a constructor, nominal interface, or record interface), or a named type that points to such a type.
    
    Overrides:
    
    isOrdinaryFunction in class JSType
  - isAllType
```
public final boolean isAllType()
```
    Overrides:
    
    isAllType in class JSType
  - isStruct
```
public final boolean isStruct()
```
    Description copied from class: JSType
    
    Returns true iff this can be a struct. UnionType overrides the method, assume this is not a union here.
    
    Overrides:
    
    isStruct in class JSType
  - isDict
```
public final boolean isDict()
```
    Description copied from class: JSType
    
    Returns true iff this can be a dict. UnionType overrides the method, assume this is not a union here.
    
    Overrides:
    
    isDict in class JSType
  - isNativeObjectType
```
public final boolean isNativeObjectType()
```
    Description copied from class: ObjectType
    
    Whether this is a built-in object.
    
    Overrides:
    
    isNativeObjectType in class ObjectType
  - toMaybeRecordType
```
public final RecordType toMaybeRecordType()
```
    Description copied from class: JSType
    
    Downcasts this to a RecordType, or returns null if this is not a RecordType.
    
    Overrides:
    
    toMaybeRecordType in class JSType
  - toMaybeUnionType
```
public final UnionType toMaybeUnionType()
```
    Description copied from class: JSType
    
    Downcasts this to a UnionType, or returns null if this is not a UnionType. Named in honor of Haskell's Maybe type constructor.
    
    Overrides:
    
    toMaybeUnionType in class JSType
  - toMaybeFunctionType
```
public final FunctionType toMaybeFunctionType()
```
    Description copied from class: JSType
    
    Downcasts this to a FunctionType, or returns null if this is not a function.
    For the purposes of this function, we define a MaybeFunctionType as any type in the sub-lattice { x | LEAST_FUNCTION_TYPE <= x <= GREATEST_FUNCTION_TYPE } This definition excludes bottom types like NoType and NoObjectType.
    This definition is somewhat arbitrary and axiomatic, but this is the definition that makes the most sense for the most callers.
    
    Overrides:
    
    toMaybeFunctionType in class JSType
  - toMaybeEnumElementType
```
public final EnumElementType toMaybeEnumElementType()
```
    Description copied from class: JSType
    
    Downcasts this to an EnumElementType, or returns null if this is not an EnumElementType.
    
    Overrides:
    
    toMaybeEnumElementType in class JSType
  - testForEquality
```
public final TernaryValue testForEquality(JSType that)
```
    Description copied from class: JSType
    
    Compares this and that.
    Overrides:
    
    testForEquality in class ObjectType
    
    Returns:
    
    TernaryValue.TRUE if the comparison of values of this type and that always succeed (such as undefined compared to null)
    
    TernaryValue.FALSE if the comparison of values of this type and that always fails (such as undefined compared to number)
    
    TernaryValue.UNKNOWN if the comparison can succeed or fail depending on the concrete values
  - getOwnerFunction
```
public final FunctionType getOwnerFunction()
```
    Overrides:
    
    getOwnerFunction in class ObjectType
  - getCtorImplementedInterfaces
```
public java.lang.Iterable<ObjectType> getCtorImplementedInterfaces()
```
    Description copied from class: ObjectType
    
    Gets the interfaces implemented by the ctor associated with this type. Intended to be overridden by subclasses.
    
    Overrides:
    
    getCtorImplementedInterfaces in class ObjectType
  - getCtorExtendedInterfaces
```
public java.lang.Iterable<ObjectType> getCtorExtendedInterfaces()
```
    Description copied from class: ObjectType
    
    Gets the interfaces extended by the interface associated with this type. Intended to be overridden by subclasses.
    
    Overrides:
    
    getCtorExtendedInterfaces in class ObjectType
  - getImplicitPrototype
```
public final ObjectType getImplicitPrototype()
```
    Description copied from class: ObjectType
    
    Gets the implicit prototype (a.k.a. the [[Prototype]] property).
    
    Specified by:
    
    getImplicitPrototype in class ObjectType
  - removeProperty
```
public final boolean removeProperty(java.lang.String name)
```
    Description copied from class: ObjectType
    
    Removes the declared or inferred property from this ObjectType.
    
    Overrides:
    
    removeProperty in class ObjectType
    
    Parameters:
    
    name - the property's name
    
    Returns:
    
    true if the property was removed successfully. False if the property did not exist, or could not be removed.
  - findPropertyTypeWithoutConsideringTemplateTypes
```
protected JSType findPropertyTypeWithoutConsideringTemplateTypes(java.lang.String propertyName)
```
    Description copied from class: JSType
    
    Looks up a property on this type, but without properly replacing any templates in the result.
    Subclasses can override this if they need more complicated logic for property lookup than just autoboxing to an object.
    This is only for use by findPropertyType(JSType). Call that method instead if you need to lookup a property on a random JSType
    
    Overrides:
    
    findPropertyTypeWithoutConsideringTemplateTypes in class ObjectType
  - getJSDocInfo
```
public final JSDocInfo getJSDocInfo()
```
    Description copied from class: ObjectType
    
    Gets the docInfo for this type.
    
    Overrides:
    
    getJSDocInfo in class ObjectType
  - setJSDocInfo
```
public final void setJSDocInfo(JSDocInfo info)
```
    Description copied from class: ObjectType
    
    Sets the docInfo for this type from the given JSDocInfo. The JSDocInfo may be null.
    
    Overrides:
    
    setJSDocInfo in class ObjectType
  - setPropertyJSDocInfo
```
public final void setPropertyJSDocInfo(java.lang.String propertyName,
                                       JSDocInfo info)
```
    Description copied from class: ObjectType
    
    Sets the docInfo for the specified property from the JSDocInfo on its definition.
    
    Overrides:
    
    setPropertyJSDocInfo in class ObjectType
    
    info - JSDocInfo for the property definition. May be null.
  - getConstructor
```
public final FunctionType getConstructor()
```
    Description copied from class: ObjectType
    
    Gets this object's constructor.
    
    Specified by:
    
    getConstructor in class ObjectType
    
    Returns:
    
    this object's constructor or null if it is a native object (constructed natively v.s. by instantiation of a function)
  - getTemplateTypes
```
public com.google.common.collect.ImmutableList<JSType> getTemplateTypes()
```
    Description copied from class: ObjectType
    
    Gets the declared default element type.
    
    Overrides:
    
    getTemplateTypes in class ObjectType
    
    See Also:
    
    TemplatizedType
  - getTemplateParamCount
```
public int getTemplateParamCount()
```
    Description copied from class: JSType
    
    Return the number of template parameters declared for this type.
    In general, this value corresponds to the number of `@template` declarations on the type definition. It does not include template parameters from superclasses or superinterfaces.
    
    Overrides:
    
    getTemplateParamCount in class JSType
  - visitReferenceType
```
public final <T> T visitReferenceType(Visitor<T> visitor)
```
  - visit
```
public <T> T visit(Visitor<T> visitor)
```
    Description copied from class: JSType
    
    Visit this type with the given visitor.
    
    Overrides:
    
    visit in class ObjectType
    
    Returns:
    
    the value returned by the visitor
    
    See Also:
    
    Visitor
  - getTypeOfThis
```
public final JSType getTypeOfThis()
```
    Overrides:
    
    getTypeOfThis in class ObjectType
  - collapseUnion
```
public final JSType collapseUnion()
```
    Description copied from class: JSType
    
    Gets the least supertype of this that's not a union.
    
    Overrides:
    
    collapseUnion in class JSType
  - matchConstraint
```
public final void matchConstraint(JSType constraint)
```
    Description copied from class: JSType
    
    Modify this type so that it matches the specified type. This is useful for reverse type-inference, where we want to infer that an object literal matches its constraint (much like how the java compiler does reverse-inference to figure out generics).
    
    Overrides:
    
    matchConstraint in class JSType
  - toMaybeTemplatizedType
```
public TemplatizedType toMaybeTemplatizedType()
```
    Description copied from class: JSType
    
    Downcasts this to a TemplatizedType, or returns null if this is not a templatized type.
    
    Overrides:
    
    toMaybeTemplatizedType in class JSType
  - toMaybeTemplateType
```
public TemplateType toMaybeTemplateType()
```
    Description copied from class: JSType
    
    Downcasts this to a TemplateType, or returns null if this is not a template type.
    
    Overrides:
    
    toMaybeTemplateType in class JSType
  - hasAnyTemplateTypesInternal
```
public boolean hasAnyTemplateTypesInternal()
```
  - getTemplateTypeMap
```
public TemplateTypeMap getTemplateTypeMap()
```
    Description copied from class: JSType
    
    Returns the template type map associated with this type.
    
    Overrides:
    
    getTemplateTypeMap in class JSType

Class ProxyObjectType

Nested Class Summary

Nested classes/interfaces inherited from class com.google.javascript.rhino.jstype.JSType

Field Summary

Fields inherited from class com.google.javascript.rhino.jstype.JSType

Method Summary

Methods inherited from class com.google.javascript.rhino.jstype.ObjectType

Methods inherited from class com.google.javascript.rhino.jstype.JSType

Methods inherited from class java.lang.Object

Method Detail

getPropertyKind

loosenTypecheckingDueToForwardReferencedSupertype

setValidator

getReferenceName

matchesNumberContext

matchesStringContext

matchesSymbolContext

matchesObjectContext

canBeCalled

isStructuralType

isNoType

isNoObjectType

isNoResolvedType

isUnknownType

isCheckedUnknownType

isNullable

isVoidable

toMaybeEnumType

isConstructor

isNominalType

isInstanceType

isInterface

isOrdinaryFunction

isAllType

isStruct

isDict

isNativeObjectType

toMaybeRecordType

toMaybeUnionType

toMaybeFunctionType

toMaybeEnumElementType

testForEquality

getOwnerFunction

getCtorImplementedInterfaces

getCtorExtendedInterfaces

getImplicitPrototype

removeProperty

findPropertyTypeWithoutConsideringTemplateTypes

getJSDocInfo

setJSDocInfo

setPropertyJSDocInfo

getConstructor

getTemplateTypes

getTemplateParamCount

visitReferenceType

visit

getTypeOfThis

collapseUnion

matchConstraint

toMaybeTemplatizedType

toMaybeTemplateType

hasAnyTemplateTypesInternal

getTemplateTypeMap