jdk.internal.jvmci.hotspot

Class HotSpotMethodHandleAccessProvider

java.lang.Object

jdk.internal.jvmci.hotspot.HotSpotMethodHandleAccessProvider

All Implemented Interfaces:

HotSpotProxified, MethodHandleAccessProvider

public class HotSpotMethodHandleAccessProvider
extends Object
implements MethodHandleAccessProvider, HotSpotProxified

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) static class	HotSpotMethodHandleAccessProvider.LazyInitialization Lazy initialization to break class initialization cycle.

Nested classes/interfaces inherited from interface jdk.internal.jvmci.meta.MethodHandleAccessProvider

MethodHandleAccessProvider.IntrinsicMethod

Field Summary

Fields

Modifier and Type	Field and Description
private ConstantReflectionProvider	constantReflection

Constructor Summary

Constructors

Constructor and Description
HotSpotMethodHandleAccessProvider(ConstantReflectionProvider constantReflection)

Method Summary

Modifier and Type	Method and Description
static MethodHandleAccessProvider.IntrinsicMethod	getMethodHandleIntrinsic(int intrinsicId)
private ResolvedJavaMethod	getTargetMethod(JavaConstant memberName) Returns the ResolvedJavaMethod for the vmtarget of a java.lang.invoke.MemberName.
MethodHandleAccessProvider.IntrinsicMethod	lookupMethodHandleIntrinsic(ResolvedJavaMethod method) Returns the method handle method intrinsic identifier for the provided method, or null if the method is not an intrinsic processed by this interface.
ResolvedJavaMethod	resolveInvokeBasicTarget(JavaConstant methodHandle, boolean forceBytecodeGeneration) Resolves the invocation target for an invocation of MethodHandle.invokeBasic with the given constant receiver MethodHandle.
ResolvedJavaMethod	resolveLinkToTarget(JavaConstant memberName) Resolves the invocation target for an invocation of a MethodHandle.linkTo* method with the given constant member name.

Methods inherited from class java.lang.Object

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

Field Detail

constantReflection

private final ConstantReflectionProvider constantReflection

Constructor Detail

HotSpotMethodHandleAccessProvider

public HotSpotMethodHandleAccessProvider(ConstantReflectionProvider constantReflection)

Method Detail

lookupMethodHandleIntrinsic

public MethodHandleAccessProvider.IntrinsicMethod lookupMethodHandleIntrinsic(ResolvedJavaMethod method)

Description copied from interface: MethodHandleAccessProvider

Returns the method handle method intrinsic identifier for the provided method, or null if the method is not an intrinsic processed by this interface.

Specified by:

lookupMethodHandleIntrinsic in interface MethodHandleAccessProvider

getMethodHandleIntrinsic

public static MethodHandleAccessProvider.IntrinsicMethod getMethodHandleIntrinsic(int intrinsicId)

resolveInvokeBasicTarget

public ResolvedJavaMethod resolveInvokeBasicTarget(JavaConstant methodHandle,
                                                   boolean forceBytecodeGeneration)

Description copied from interface: MethodHandleAccessProvider

Resolves the invocation target for an invocation of MethodHandle.invokeBasic with the given constant receiver MethodHandle. Returns null if the invocation target is not available at this time.

The first invocations of a method handle can use an interpreter to lookup the actual invoked method; frequently executed method handles can use Java bytecode generation to avoid the interpreter overhead. If the parameter forceBytecodeGeneration is set to true, the VM should try to generate bytecodes before this method returns.

Specified by:

resolveInvokeBasicTarget in interface MethodHandleAccessProvider

resolveLinkToTarget

public ResolvedJavaMethod resolveLinkToTarget(JavaConstant memberName)

Description copied from interface: MethodHandleAccessProvider

Resolves the invocation target for an invocation of a MethodHandle.linkTo* method with the given constant member name. The member name is the last parameter of the linkTo* method. Returns null if the invocation target is not available at this time.

Specified by:

resolveLinkToTarget in interface MethodHandleAccessProvider

getTargetMethod

private ResolvedJavaMethod getTargetMethod(JavaConstant memberName)

Returns the ResolvedJavaMethod for the vmtarget of a java.lang.invoke.MemberName.