com.oracle.truffle.api.dsl

Class InlineSupport.StateField

java.lang.Object

com.oracle.truffle.api.dsl.InlineSupport.InlinableField

com.oracle.truffle.api.dsl.InlineSupport.StateField

Enclosing class:

InlineSupport

public static final class InlineSupport.StateField
extends InlineSupport.InlinableField

Represents a field for updating state fields in inlined nodes.

Since:

23.0

Method Summary

Modifier and Type	Method and Description
static InlineSupport.StateField	create(MethodHandles.Lookup declaringLookup, String field) This method creates a new field given a lookup class and a field name.
InlineSupport.StateField	createParentAccessor(Class<? extends Node> parentClass) This method creates a parent accessor field.
int	get(Node node) This method returns the value of the target field given a target node.
void	set(Node node, int value) This method sets the value of the target field giving the a target node.
InlineSupport.StateField	subUpdater(int newOffset, int newLength) Creates a sub updater for a subset of bits in a state field.

Methods inherited from class com.oracle.truffle.api.dsl.InlineSupport.InlinableField

validate

Methods inherited from class java.lang.Object

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

Method Detail

createParentAccessor

public InlineSupport.StateField createParentAccessor(Class<? extends Node> parentClass)

This method creates a parent accessor field. A parent accessor allows access to a field through a parent pointer. The given class must exactly match the given receiver. This method is intended to be used by the DSL-generated code.

Since:

23.0

subUpdater

public InlineSupport.StateField subUpdater(int newOffset,
                                           int newLength)

Creates a sub updater for a subset of bits in a state field. This method is intended to be used by DSL-generated code only.

Since:

23.0

get

public int get(Node node)

This method returns the value of the target field given a target node. The node parameter must match the class the field was created with. If the type is not compatible, an ClassCastException is thrown. If null is provided, then a NullPointerException is thrown.

Since:

23.0

set

public void set(Node node,
                int value)

This method sets the value of the target field giving the a target node. The node parameter must match the class the field was created with. If the type is not compatible, an ClassCastException is thrown. If null is provided, then a NullPointerException is thrown.

Since:

23.0

create

public static InlineSupport.StateField create(MethodHandles.Lookup declaringLookup,
                                              String field)

This method creates a new field given a lookup class and a field name. The lookup class requires access to the field and must be directly accessible. If the field is not found or the field type is not compatible, then an IllegalArgumentException is thrown. The given field must not be final. This method is intended to be used by DSL-generated code only.

Since:

23.0