Package com.oracle.truffle.object

Class LayoutImpl

java.lang.Object

com.oracle.truffle.api.object.Layout

com.oracle.truffle.object.LayoutImpl

Direct Known Subclasses:

BasicLayout

public abstract class LayoutImpl
extends Layout

Nested Class Summary

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

Layout.ImplicitCast

Field Summary

Fields inherited from class com.oracle.truffle.api.object.Layout

INT_TO_DOUBLE, INT_TO_LONG, NONE, OPTION_PREFIX

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	LayoutImpl(java.util.EnumSet<Layout.ImplicitCast> allowedImplicitCasts, java.lang.Class<? extends DynamicObjectImpl> clazz, LayoutStrategy strategy)

Method Summary

Modifier and Type	Method	Description
abstract Shape.Allocator	createAllocator()	Create an allocator for static property creation.
Shape	createShape(ObjectType operations)
Shape	createShape(ObjectType operations, java.lang.Object sharedData)
protected Location	existingLocationForValue(java.lang.Object value, Location oldLocation, Shape oldShape)
protected abstract Location	getObjectArrayLocation()
protected abstract int	getObjectFieldCount()
protected abstract Location	getPrimitiveArrayLocation()
protected abstract int	getPrimitiveFieldCount()
LayoutStrategy	getStrategy()
java.lang.Class<? extends DynamicObject>	getType()
protected abstract boolean	hasObjectExtensionArray()
protected abstract boolean	hasPrimitiveExtensionArray()
boolean	isAllowedIntToDouble()
boolean	isAllowedIntToLong()
protected boolean	isLocationAssignableFrom(Location destination, Location source)
boolean	isPropertyUpcastOf(Property thiz, Property other)	Is this property an upcast of the other property?
abstract DynamicObject	newInstance(Shape shape)
protected abstract int	objectFieldIndex(Location location)

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

createLayout, createLayout, createLayout, createShape, getFactory

Methods inherited from class java.lang.Object

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

Constructor Detail

LayoutImpl

protected LayoutImpl(java.util.EnumSet<Layout.ImplicitCast> allowedImplicitCasts,
                     java.lang.Class<? extends DynamicObjectImpl> clazz,
                     LayoutStrategy strategy)

Method Detail

newInstance

public abstract DynamicObject newInstance(Shape shape)

Specified by:

newInstance in class Layout

getType

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

Specified by:

getType in class Layout

createShape

public final Shape createShape(ObjectType operations,
                               java.lang.Object sharedData)

Specified by:

createShape in class Layout

createShape

public final Shape createShape(ObjectType operations)

Specified by:

createShape in class Layout

isAllowedIntToDouble

public boolean isAllowedIntToDouble()

isAllowedIntToLong

public boolean isAllowedIntToLong()

hasObjectExtensionArray

protected abstract boolean hasObjectExtensionArray()

hasPrimitiveExtensionArray

protected abstract boolean hasPrimitiveExtensionArray()

getObjectFieldCount

protected abstract int getObjectFieldCount()

getPrimitiveFieldCount

protected abstract int getPrimitiveFieldCount()

getObjectArrayLocation

protected abstract Location getObjectArrayLocation()

getPrimitiveArrayLocation

protected abstract Location getPrimitiveArrayLocation()

objectFieldIndex

protected abstract int objectFieldIndex(Location location)

isLocationAssignableFrom

protected boolean isLocationAssignableFrom(Location destination,
                                           Location source)

existingLocationForValue

protected Location existingLocationForValue(java.lang.Object value,
                                            Location oldLocation,
                                            Shape oldShape)

isPropertyUpcastOf

public boolean isPropertyUpcastOf(Property thiz,
                                  Property other)

Is this property an upcast of the other property?

Parameters:

other - the property being compared to

Returns:

true if this is a upcast of the other property, false otherwise

createAllocator

public abstract Shape.Allocator createAllocator()

Description copied from class: Layout

Create an allocator for static property creation. Reserves all array extension slots.

Specified by:

createAllocator in class Layout

getStrategy

public LayoutStrategy getStrategy()