Categories:
Audio (13)
Biotech (29)
Bytecode (36)
Database (77)
Framework (7)
Game (7)
General (507)
Graphics (53)
I/O (35)
IDE (2)
JAR Tools (101)
JavaBeans (21)
JDBC (121)
JDK (426)
JSP (20)
Logging (108)
Mail (58)
Messaging (8)
Network (84)
PDF (97)
Report (7)
Scripting (84)
Security (32)
Server (121)
Servlet (26)
SOAP (24)
Testing (54)
Web (15)
XML (309)
Collections:
Other Resources:
JDK 17 java.base.jmod - Base Module
JDK 17 java.base.jmod is the JMOD file for JDK 17 Base module.
JDK 17 Base module compiled class files are stored in \fyicenter\jdk-17.0.5\jmods\java.base.jmod.
JDK 17 Base module compiled class files are also linked and stored in the \fyicenter\jdk-17.0.5\lib\modules JImage file.
JDK 17 Base module source code files are stored in \fyicenter\jdk-17.0.5\lib\src.zip\java.base.
You can click and view the content of each source code file in the list below.
✍: FYIcenter
⏎ java/lang/invoke/DelegatingMethodHandle.java
/* * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.lang.invoke; import java.util.Arrays; import static java.lang.invoke.LambdaForm.*; import static java.lang.invoke.LambdaForm.Kind.*; import static java.lang.invoke.MethodHandleNatives.Constants.*; import static java.lang.invoke.MethodHandleStatics.*; /** * A method handle whose invocation behavior is determined by a target. * The delegating MH itself can hold extra "intentions" beyond the simple behavior. * @author jrose */ /*non-public*/ abstract class DelegatingMethodHandle extends MethodHandle { protected DelegatingMethodHandle(MethodHandle target) { this(target.type(), target); } protected DelegatingMethodHandle(MethodType type, MethodHandle target) { super(type, chooseDelegatingForm(target)); } protected DelegatingMethodHandle(MethodType type, LambdaForm form) { super(type, form); } /** Define this to extract the delegated target which supplies the invocation behavior. */ protected abstract MethodHandle getTarget(); @Override abstract MethodHandle asTypeUncached(MethodType newType); @Override MemberName internalMemberName() { return getTarget().internalMemberName(); } @Override boolean isCrackable() { MemberName member = internalMemberName(); return member != null && (member.isResolved() || member.isMethodHandleInvoke() || member.isVarHandleMethodInvoke()); } @Override MethodHandle viewAsType(MethodType newType, boolean strict) { return getTarget().viewAsType(newType, strict); } @Override boolean isInvokeSpecial() { return getTarget().isInvokeSpecial(); } @Override Class<?> internalCallerClass() { return getTarget().internalCallerClass(); } @Override MethodHandle copyWith(MethodType mt, LambdaForm lf) { // FIXME: rethink 'copyWith' protocol; it is too low-level for use on all MHs throw newIllegalArgumentException("do not use this"); } @Override String internalProperties() { return "\n& Class="+getClass().getSimpleName()+ "\n& Target="+getTarget().debugString(); } @Override BoundMethodHandle rebind() { return getTarget().rebind(); } private static LambdaForm chooseDelegatingForm(MethodHandle target) { if (target instanceof SimpleMethodHandle) return target.internalForm(); // no need for an indirection return makeReinvokerForm(target, MethodTypeForm.LF_DELEGATE, DelegatingMethodHandle.class, NF_getTarget); } static LambdaForm makeReinvokerForm(MethodHandle target, int whichCache, Object constraint, NamedFunction getTargetFn) { // No pre-action needed. return makeReinvokerForm(target, whichCache, constraint, true, getTargetFn, null); } /** Create a LF which simply reinvokes a target of the given basic type. */ static LambdaForm makeReinvokerForm(MethodHandle target, int whichCache, Object constraint, boolean forceInline, NamedFunction getTargetFn, NamedFunction preActionFn) { MethodType mtype = target.type().basicType(); Kind kind = whichKind(whichCache); boolean customized = (whichCache < 0 || mtype.parameterSlotCount() > MethodType.MAX_MH_INVOKER_ARITY); boolean hasPreAction = (preActionFn != null); LambdaForm form; if (!customized) { form = mtype.form().cachedLambdaForm(whichCache); if (form != null) return form; } final int THIS_DMH = 0; final int ARG_BASE = 1; final int ARG_LIMIT = ARG_BASE + mtype.parameterCount(); int nameCursor = ARG_LIMIT; final int PRE_ACTION = hasPreAction ? nameCursor++ : -1; final int NEXT_MH = customized ? -1 : nameCursor++; final int REINVOKE = nameCursor++; LambdaForm.Name[] names = LambdaForm.arguments(nameCursor - ARG_LIMIT, mtype.invokerType()); assert(names.length == nameCursor); names[THIS_DMH] = names[THIS_DMH].withConstraint(constraint); Object[] targetArgs; if (hasPreAction) { names[PRE_ACTION] = new LambdaForm.Name(preActionFn, names[THIS_DMH]); } if (customized) { targetArgs = Arrays.copyOfRange(names, ARG_BASE, ARG_LIMIT, Object[].class); names[REINVOKE] = new LambdaForm.Name(target, targetArgs); // the invoker is the target itself } else { names[NEXT_MH] = new LambdaForm.Name(getTargetFn, names[THIS_DMH]); targetArgs = Arrays.copyOfRange(names, THIS_DMH, ARG_LIMIT, Object[].class); targetArgs[0] = names[NEXT_MH]; // overwrite this MH with next MH names[REINVOKE] = new LambdaForm.Name(mtype, targetArgs); } form = new LambdaForm(ARG_LIMIT, names, forceInline, kind); if (!customized) { form = mtype.form().setCachedLambdaForm(whichCache, form); } return form; } private static Kind whichKind(int whichCache) { return switch (whichCache) { case MethodTypeForm.LF_REBIND -> BOUND_REINVOKER; case MethodTypeForm.LF_DELEGATE -> DELEGATE; default -> REINVOKER; }; } static final NamedFunction NF_getTarget; static { try { MemberName member = new MemberName(DelegatingMethodHandle.class, "getTarget", MethodType.methodType(MethodHandle.class), REF_invokeVirtual); NF_getTarget = new NamedFunction( MemberName.getFactory() .resolveOrFail(REF_invokeVirtual, member, DelegatingMethodHandle.class, LM_TRUSTED, NoSuchMethodException.class)); } catch (ReflectiveOperationException ex) { throw newInternalError(ex); } // The Holder class will contain pre-generated DelegatingMethodHandles resolved // speculatively using MemberName.getFactory().resolveOrNull. However, that // doesn't initialize the class, which subtly breaks inlining etc. By forcing // initialization of the Holder class we avoid these issues. UNSAFE.ensureClassInitialized(Holder.class); } /* Placeholder class for DelegatingMethodHandles generated ahead of time */ final class Holder {} }
⏎ java/lang/invoke/DelegatingMethodHandle.java
Or download all of them as a single archive file:
File name: java.base-17.0.5-src.zip File size: 8883851 bytes Release date: 2022-09-13 Download
2023-09-26, 93154👍, 1💬
Popular Posts:
How to download and install ojdbc14.jar for Oracle 10g R2? ojdbc14.jar for Oracle 10g R2 is a Java 1...
The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms, it was develo...
Jettison is a collection of Java APIs (like STaX and DOM) which read and write JSON. This allows nea...
JSP(tm) Standard Tag Library 1.0 implementation - Jakarta Taglibs hosts the Standard Taglib 1.0, an ...
What Is HttpComponents httpcore-4.2.2.jar? HttpComponents httpcore-4.2.2.jar is the JAR file for Apa...