Package com.oracle.truffle.object.basic

Class BasicLocations.ObjectFieldLocation

java.lang.Object

com.oracle.truffle.api.object.Location

com.oracle.truffle.object.LocationImpl

com.oracle.truffle.object.basic.BasicLocations.FieldLocation

com.oracle.truffle.object.basic.BasicLocations.MethodHandleFieldLocation

com.oracle.truffle.object.basic.BasicLocations.ObjectFieldLocation

All Implemented Interfaces:

BaseLocation, ObjectLocation, TypedLocation

Enclosing class:

BasicLocations

public static class BasicLocations.ObjectFieldLocation
extends BasicLocations.MethodHandleFieldLocation
implements ObjectLocation

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.truffle.object.LocationImpl

LocationImpl.EffectivelyFinalLocation<T extends Location>, LocationImpl.InternalLongLocation, LocationImpl.TypedObjectLocation<T extends Location & ObjectLocation>

Field Summary

Fields inherited from class com.oracle.truffle.object.basic.BasicLocations.MethodHandleFieldLocation

getter, setter

Constructor Summary

Constructors

Constructor	Description
ObjectFieldLocation(int index, java.lang.invoke.MethodHandle getter, java.lang.invoke.MethodHandle setter)

Method Summary

Modifier and Type	Method	Description
boolean	canStore(java.lang.Object value)	Returns true if the location is compatible with the value.
java.lang.Object	get(DynamicObject store, boolean condition)	Get object value as object at this location in store.
java.lang.Class<? extends java.lang.Object>	getType()	The type of this location.
boolean	isNonNull()	If true, this location does not accept null values.
int	objectFieldCount()	Get the number of in-object Object fields this location requires.
void	setInternal(DynamicObject store, java.lang.Object value)	Like Location.set(DynamicObject, Object, Shape), but does not invalidate final locations.

Methods inherited from class com.oracle.truffle.object.basic.BasicLocations.FieldLocation

equals, getIndex, getWhereString, hashCode

Methods inherited from class com.oracle.truffle.object.LocationImpl

canSet, canStoreFinal, getInternal, isConstant, isFinal, objectArrayCount, primitiveArrayCount, primitiveFieldCount, set, toString, valueEquals

Methods inherited from class com.oracle.truffle.api.object.Location

checkShape, finalLocation, get, incompatibleLocation, set, set

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.oracle.truffle.api.object.BaseLocation

get, set, set, set

Constructor Detail

ObjectFieldLocation

public ObjectFieldLocation(int index,
                           java.lang.invoke.MethodHandle getter,
                           java.lang.invoke.MethodHandle setter)

Method Detail

get

public java.lang.Object get(DynamicObject store,
                            boolean condition)

Description copied from interface: BaseLocation

Get object value as object at this location in store. For internal use only and subject to change, use BaseLocation.get(DynamicObject, Shape) instead.

Specified by:

get in interface BaseLocation

Overrides:

get in class Location

condition - the result of a shape check or false

See Also:

BaseLocation.get(DynamicObject, Shape)

setInternal

public final void setInternal(DynamicObject store,
                              java.lang.Object value)
                       throws IncompatibleLocationException

Description copied from class: Location

Like Location.set(DynamicObject, Object, Shape), but does not invalidate final locations. For internal use only and subject to change, use DynamicObjectFactory to create objects with predefined properties.

Specified by:

setInternal in class LocationImpl

Throws:

IncompatibleLocationException - if value is of non-assignable type

canStore

public boolean canStore(java.lang.Object value)

Description copied from class: Location

Returns true if the location is compatible with the value. The value may still be rejected if Location.canSet(DynamicObject, Object) returns false.

Overrides:

canStore in class LocationImpl

Parameters:

value - the value in question

getType

public java.lang.Class<? extends java.lang.Object> getType()

Description copied from interface: TypedLocation

The type of this location.

Specified by:

getType in interface ObjectLocation

Specified by:

getType in interface TypedLocation

isNonNull

public boolean isNonNull()

Description copied from interface: ObjectLocation

If true, this location does not accept null values.

Specified by:

isNonNull in interface ObjectLocation

objectFieldCount

public int objectFieldCount()

Description copied from class: LocationImpl

Get the number of in-object Object fields this location requires.

Overrides:

objectFieldCount in class LocationImpl