org.graalvm.compiler.truffle.compiler

Class TruffleConstantFieldProvider

java.lang.Object

org.graalvm.compiler.truffle.compiler.TruffleConstantFieldProvider

All Implemented Interfaces:

ConstantFieldProvider

public class TruffleConstantFieldProvider
extends Object
implements ConstantFieldProvider

Nested Class Summary

Nested classes/interfaces inherited from interface org.graalvm.compiler.core.common.spi.ConstantFieldProvider

ConstantFieldProvider.ConstantFieldTool<T>

Constructor Summary

Constructors

Constructor and Description
TruffleConstantFieldProvider(ConstantFieldProvider graalConstantFieldProvider, MetaAccessProvider metaAccess, KnownTruffleTypes types)

Method Summary

Modifier and Type	Method and Description
boolean	maybeFinal(ResolvedJavaField field) Returns true if a field may be constant folded even though it is not declared as final.
<T> T	readConstantField(ResolvedJavaField field, ConstantFieldProvider.ConstantFieldTool<T> tool) Decide whether a read from the field should be constant folded.

Methods inherited from class java.lang.Object

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

Constructor Detail

TruffleConstantFieldProvider

public TruffleConstantFieldProvider(ConstantFieldProvider graalConstantFieldProvider,
                                    MetaAccessProvider metaAccess,
                                    KnownTruffleTypes types)

Method Detail

readConstantField

public <T> T readConstantField(ResolvedJavaField field,
                               ConstantFieldProvider.ConstantFieldTool<T> tool)

Description copied from interface: ConstantFieldProvider

Decide whether a read from the field should be constant folded. This should return ConstantFieldProvider.ConstantFieldTool.foldConstant(JavaConstant) or ConstantFieldProvider.ConstantFieldTool.foldStableArray(JavaConstant, int, boolean) if the read should be constant folded, or null otherwise.

Specified by:

readConstantField in interface ConstantFieldProvider

maybeFinal

public boolean maybeFinal(ResolvedJavaField field)

Description copied from interface: ConstantFieldProvider

Returns true if a field may be constant folded even though it is not declared as final. This applies to well-known fields such as String#hash.

Specified by:

maybeFinal in interface ConstantFieldProvider