Modifier and Type	Class and Description
pack-priv static class	BootstrapMethodInvoker.PullAdapter
pack-priv static class	BootstrapMethodInvoker.PushAdapter
private static class	BootstrapMethodInvoker.VM_BSCI<T> Canonical VM-aware implementation of BootstrapCallInfo.

Modifier and Type	Field and Description
private static final MethodType	LMF_ALT_MT
private static final MethodType	LMF_INDY_MT
private static final MethodType	OBJECT_METHODS_MT
private static final MethodType	SCF_MT

Access	Constructor and Description
pack-priv	BootstrapMethodInvoker()

Method Summary

Modifier and Type	Method and Description
pack-priv static < the expected return type T> T	Returns: the expected value, either a CallSite or a constant value invoke(Class<T> the expected return type (either CallSite or a constant type) resultType, MethodHandle the BSM to call bootstrapMethod, String the method name or constant name name, Object the method type or constant type type, Object information passed up from the JVM, to derive static arguments info, Class<?> the class containing the resolved method call or constant load callerClass) Factored code for invoking a bootstrap method for invokedynamic or a dynamic constant.
private static Object	invokeWithManyArguments(MethodHandle bootstrapMethod, MethodHandles.Lookup caller, String name, Object type, Object[] argv)
private static boolean	isLambdaMetafactoryAltMetafactoryBSM(MethodType bsmType) Returns: true iff the BSM method type exactly matches `java.lang.invoke.LambdaMetafactory#altMetafactory( MethodHandles.Lookup, String, MethodType, Object[])`
private static boolean	isLambdaMetafactoryIndyBSM(MethodType bsmType) Returns: true iff the BSM method type exactly matches `java.lang.invoke.LambdaMetafactory#metafactory( MethodHandles.Lookup, String, MethodType, MethodType, MethodHandle, MethodType)`
private static boolean	isObjectMethodsBootstrapBSM(MethodType bsmType) Returns: true iff the BSM method type exactly matches `java.lang.runtime.ObjectMethods#bootstrap( MethodHandles.Lookup, String, TypeDescriptor, Class, String, MethodHandle[])`
private static boolean	isStringConcatFactoryBSM(MethodType bsmType) Returns: true iff the BSM method type exactly matches `java.lang.invoke.StringConcatFactory#makeConcatWithConstants(MethodHandles.Lookup, String, MethodType, String, Object...)`
private static Object	maybeReBox(Object x) The JVM produces java.lang.Integer values to box CONSTANT_Integer boxes but does not intern them.
private static void	maybeReBoxElements(Object[] xa)
pack-priv static MethodHandle	pushMePullYou(MethodHandle bsm, boolean goToPushMode) Given a push-mode BSM (taking one argument) convert it to a pull-mode BSM (taking N pre-resolved arguments).
pack-priv static <T> T	widenAndCast(Object result, Class<T> resultType) If resultType is a reference type, do Class::cast on the result through an identity function of that type, as-type converted to return the corresponding reference wrapper type for resultType.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

LMF_ALT_MT	back to summary
private static final MethodType LMF_ALT_MT

LMF_INDY_MT	back to summary
private static final MethodType LMF_INDY_MT

OBJECT_METHODS_MT	back to summary
private static final MethodType OBJECT_METHODS_MT

SCF_MT	back to summary
private static final MethodType SCF_MT

Constructor Detail

BootstrapMethodInvoker	back to summary
pack-priv BootstrapMethodInvoker()

Method Detail

invoke	back to summary
pack-priv static <T> T invoke(Class<T> resultType, MethodHandle bootstrapMethod, String name, Object type, Object info, Class<?> callerClass) Factored code for invoking a bootstrap method for invokedynamic or a dynamic constant. Parameters <T> the expected return type resultType:Class<T> the expected return type (either CallSite or a constant type) bootstrapMethod:MethodHandle the BSM to call name:String the method name or constant name type:Object the method type or constant type info:Object information passed up from the JVM, to derive static arguments callerClass:Class<?> the class containing the resolved method call or constant load Returns:T the expected value, either a CallSite or a constant value

invoke

back to summary

pack-priv static <T> T invoke(Class<T> resultType, MethodHandle bootstrapMethod, String name, Object type, Object info, Class<?> callerClass)

Factored code for invoking a bootstrap method for invokedynamic or a dynamic constant.

Parameters

<T>: the expected return type
resultType:Class<T>: the expected return type (either CallSite or a constant type)
bootstrapMethod:MethodHandle: the BSM to call
name:String: the method name or constant name
type:Object: the method type or constant type
info:Object: information passed up from the JVM, to derive static arguments
callerClass:Class<?>: the class containing the resolved method call or constant load

Returns:T

the expected value, either a CallSite or a constant value

invokeWithManyArguments	back to summary
private static Object invokeWithManyArguments(MethodHandle bootstrapMethod, MethodHandles.Lookup caller, String name, Object type, Object[] argv) throws Throwable

isLambdaMetafactoryAltMetafactoryBSM	back to summary
private static boolean isLambdaMetafactoryAltMetafactoryBSM(MethodType bsmType) Returns:boolean true iff the BSM method type exactly matches `java.lang.invoke.LambdaMetafactory#altMetafactory( MethodHandles.Lookup, String, MethodType, Object[])`

isLambdaMetafactoryIndyBSM	back to summary
private static boolean isLambdaMetafactoryIndyBSM(MethodType bsmType) Returns:boolean true iff the BSM method type exactly matches `java.lang.invoke.LambdaMetafactory#metafactory( MethodHandles.Lookup, String, MethodType, MethodType, MethodHandle, MethodType)`

isObjectMethodsBootstrapBSM	back to summary
private static boolean isObjectMethodsBootstrapBSM(MethodType bsmType) Returns:boolean true iff the BSM method type exactly matches `java.lang.runtime.ObjectMethods#bootstrap( MethodHandles.Lookup, String, TypeDescriptor, Class, String, MethodHandle[])`

isStringConcatFactoryBSM	back to summary
private static boolean isStringConcatFactoryBSM(MethodType bsmType) Returns:boolean true iff the BSM method type exactly matches `java.lang.invoke.StringConcatFactory#makeConcatWithConstants(MethodHandles.Lookup, String, MethodType, String, Object...)`

maybeReBox	back to summary
private static Object maybeReBox(Object x) The JVM produces java.lang.Integer values to box CONSTANT_Integer boxes but does not intern them. Let's intern them. This is slightly wrong for a `CONSTANT_Dynamic` which produces an un-interned integer (e.g., `new Integer(0)`).

maybeReBoxElements	back to summary
private static void maybeReBoxElements(Object[] xa)

pushMePullYou	back to summary
pack-priv static MethodHandle pushMePullYou(MethodHandle bsm, boolean goToPushMode) Given a push-mode BSM (taking one argument) convert it to a pull-mode BSM (taking N pre-resolved arguments). This method is used when, in fact, the JVM is passing up pre-resolved arguments, but the BSM is expecting lazy stuff. Or, when goToPushMode is true, do the reverse transform. (The two transforms are exactly inverse.)

pushMePullYou

back to summary

pack-priv static MethodHandle pushMePullYou(MethodHandle bsm, boolean goToPushMode)

Given a push-mode BSM (taking one argument) convert it to a pull-mode BSM (taking N pre-resolved arguments). This method is used when, in fact, the JVM is passing up pre-resolved arguments, but the BSM is expecting lazy stuff. Or, when goToPushMode is true, do the reverse transform. (The two transforms are exactly inverse.)

widenAndCast back to summary

widenAndCast	back to summary
pack-priv static <T> T widenAndCast(Object result, Class<T> resultType) throws Throwable If resultType is a reference type, do Class::cast on the result through an identity function of that type, as-type converted to return the corresponding reference wrapper type for resultType. Works like `MethodHandles.identity(resultType).invoke((Object)result)`. This utility function enforces type correctness of bootstrap method results. It is also used to enforce type correctness in other dependently-typed methods, such as classData.

pack-priv static <T> T widenAndCast(Object result, Class<T> resultType) throws Throwable

If resultType is a reference type, do Class::cast on the result through an identity function of that type, as-type converted to return the corresponding reference wrapper type for resultType. Works like MethodHandles.identity(resultType).invoke((Object)result). This utility function enforces type correctness of bootstrap method results. It is also used to enforce type correctness in other dependently-typed methods, such as classData.

java.lang.invoke back to summary

pack-priv final Class BootstrapMethodInvoker.PullAdapter

Class Inheritance

extends Object

java.lang.Object
java.lang.invoke.BootstrapMethodInvoker.PullAdapter

Field Summary

Modifier and Type	Field and Description
pack-priv static final MethodHandle	MH_pullFromBootstrapMethod

Constructor Summary

Access	Constructor and Description
pack-priv	PullAdapter()

Method Summary

Modifier and Type	Method and Description
pack-priv static Object	pullFromBootstrapMethod(MethodHandle pushModeBSM, MethodHandles.Lookup lookup, BootstrapCallInfo<?> bsci)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

MH_pullFromBootstrapMethod	back to summary
pack-priv static final MethodHandle MH_pullFromBootstrapMethod

Constructor Detail

PullAdapter	back to summary
pack-priv PullAdapter()

Method Detail

pullFromBootstrapMethod	back to summary
pack-priv static Object pullFromBootstrapMethod(MethodHandle pushModeBSM, MethodHandles.Lookup lookup, BootstrapCallInfo<?> bsci) throws Throwable

java.lang.invoke back to summary

pack-priv final Class BootstrapMethodInvoker.PushAdapter

Class Inheritance

extends Object

java.lang.Object
java.lang.invoke.BootstrapMethodInvoker.PushAdapter

Field Summary

Modifier and Type	Field and Description
pack-priv static final MethodHandle	MH_pushToBootstrapMethod

Constructor Summary

Access	Constructor and Description
pack-priv	PushAdapter()

Method Summary

Modifier and Type	Method and Description
pack-priv static Object	pushToBootstrapMethod(MethodHandle pullModeBSM, MethodHandles.Lookup lookup, String name, Object type, Object... arguments)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

MH_pushToBootstrapMethod	back to summary
pack-priv static final MethodHandle MH_pushToBootstrapMethod

Constructor Detail

PushAdapter	back to summary
pack-priv PushAdapter()

Method Detail

pushToBootstrapMethod	back to summary
pack-priv static Object pushToBootstrapMethod(MethodHandle pullModeBSM, MethodHandles.Lookup lookup, String name, Object type, Object... arguments) throws Throwable

java.lang.invoke back to summary

private final Class BootstrapMethodInvoker.VM_BSCI<T>

Class Inheritance

extends AbstractConstantGroup.BSCIWithCache<T>

java.lang.Object
java.lang.invoke.AbstractConstantGroup
java.lang.invoke.AbstractConstantGroup.WithCache
java.lang.invoke.AbstractConstantGroup.BSCIWithCache
java.lang.invoke.BootstrapMethodInvoker.VM_BSCI

Canonical VM-aware implementation of BootstrapCallInfo. Knows how to dig into the JVM for lazily resolved (pull-mode) constants.

Field Summary

Modifier and Type	Field and Description
private final Class<?>	caller
private final int[]	indexInfo
private static final int	MIN_PF

Constructor Summary

Access	Constructor and Description
pack-priv	VM_BSCI(MethodHandle bsm, String name, T type, MethodHandles.Lookup lookup, int[] indexInfo)

Method Summary

Modifier and Type	Method and Description
public int	copyConstants(int start, int end, Object[] buf, int pos) Overrides default java.lang.invoke.ConstantGroup.copyConstants. Copy a sequence of constant values into a given buffer.
pack-priv Object	fillCache(int i) Overrides java.lang.invoke.AbstractConstantGroup.WithCache.fillCache. hook for local subclasses
private void	maybePrefetchIntoCache(int i, boolean bulk)
private void	prefetchIntoCache(int i, int pfLimit)

Inherited from java.lang.invoke.AbstractConstantGroup.BSCIWithCache:: bootstrapMethod invocationName invocationType toString

Field Detail

caller	back to summary
private final Class<?> caller

indexInfo	back to summary
private final int[] indexInfo

MIN_PF	back to summary
private static final int MIN_PF

Constructor Detail

VM_BSCI	back to summary
pack-priv VM_BSCI(MethodHandle bsm, String name, T type, MethodHandles.Lookup lookup, int[] indexInfo)

Method Detail

copyConstants back to summary

copyConstants	back to summary
public int copyConstants(int start, int end, Object[] buf, int pos) Overrides default java.lang.invoke.ConstantGroup.copyConstants. Doc from java.lang.invoke.ConstantGroup.copyConstants. Copy a sequence of constant values into a given buffer. This is equivalent to `end-offset` separate calls to `get`, for each index in the range from `offset` up to but not including `end`. For the first constant that cannot be resolved, a `LinkageError` is thrown, but only after preceding constant value have been stored. Annotations @Override

public int copyConstants(int start, int end, Object[] buf, int pos)

Overrides default java.lang.invoke.ConstantGroup.copyConstants.

Doc from java.lang.invoke.ConstantGroup.copyConstants.

Copy a sequence of constant values into a given buffer. This is equivalent to end-offset separate calls to get, for each index in the range from offset up to but not including end. For the first constant that cannot be resolved, a LinkageError is thrown, but only after preceding constant value have been stored.

Annotations

@Override

fillCache	back to summary
pack-priv Object fillCache(int i) Overrides java.lang.invoke.AbstractConstantGroup.WithCache.fillCache. Doc from java.lang.invoke.AbstractConstantGroup.WithCache.fillCache. hook for local subclasses Annotations @Override

fillCache

back to summary

pack-priv Object fillCache(int i)

Overrides java.lang.invoke.AbstractConstantGroup.WithCache.fillCache.

Doc from java.lang.invoke.AbstractConstantGroup.WithCache.fillCache.

hook for local subclasses

Annotations

@Override

maybePrefetchIntoCache	back to summary
private void maybePrefetchIntoCache(int i, boolean bulk)

prefetchIntoCache	back to summary
private void prefetchIntoCache(int i, int pfLimit)

pack-priv final Class BootstrapMethodInvoker

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

pack-priv final Class BootstrapMethodInvoker.PullAdapter

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

pack-priv final Class BootstrapMethodInvoker.PushAdapter

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private final Class BootstrapMethodInvoker.VM_BSCI<T>

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail