archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-08-27 06:45:07 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8187443: Forest Consolidation: Move files to unified layout

Browse source 
Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson 2017-09-12 19:03:39 +02:00
parent 270fe13182
commit 3789983e89
56923 changed files with 3 additions and 15727 deletions
Download patch file Download diff file Expand all files Collapse all files

224
src/java.base/share/classes/java/lang/invoke/GenerateJLIClassesHelper.java Normal file
View file

@ -0,0 +1,224 @@
/*
* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package java.lang.invoke;
import java.util.Map;
import jdk.internal.org.objectweb.asm.ClassWriter;
import jdk.internal.org.objectweb.asm.Opcodes;
import java.util.ArrayList;
import java.util.HashSet;
import sun.invoke.util.Wrapper;
import static java.lang.invoke.MethodHandleNatives.Constants.*;
/**
* Helper class to assist the GenerateJLIClassesPlugin to get access to
* generate classes ahead of time.
*/
class GenerateJLIClassesHelper {
static byte[] generateBasicFormsClassBytes(String className) {
ArrayList<LambdaForm> forms = new ArrayList<>();
ArrayList<String> names = new ArrayList<>();
HashSet<String> dedupSet = new HashSet<>();
for (LambdaForm.BasicType type : LambdaForm.BasicType.values()) {
LambdaForm zero = LambdaForm.zeroForm(type);
String name = zero.kind.defaultLambdaName
+ "_" + zero.returnType().basicTypeChar();
if (dedupSet.add(name)) {
names.add(name);
forms.add(zero);
}
LambdaForm identity = LambdaForm.identityForm(type);
name = identity.kind.defaultLambdaName
+ "_" + identity.returnType().basicTypeChar();
if (dedupSet.add(name)) {
names.add(name);
forms.add(identity);
}
}
return generateCodeBytesForLFs(className,
names.toArray(new String[0]),
forms.toArray(new LambdaForm[0]));
}
static byte[] generateDirectMethodHandleHolderClassBytes(String className,
MethodType[] methodTypes, int[] types) {
ArrayList<LambdaForm> forms = new ArrayList<>();
ArrayList<String> names = new ArrayList<>();
for (int i = 0; i < methodTypes.length; i++) {
LambdaForm form = DirectMethodHandle
.makePreparedLambdaForm(methodTypes[i], types[i]);
forms.add(form);
names.add(form.kind.defaultLambdaName);
}
for (Wrapper wrapper : Wrapper.values()) {
if (wrapper == Wrapper.VOID) {
continue;
}
for (byte b = DirectMethodHandle.AF_GETFIELD; b < DirectMethodHandle.AF_LIMIT; b++) {
int ftype = DirectMethodHandle.ftypeKind(wrapper.primitiveType());
LambdaForm form = DirectMethodHandle
.makePreparedFieldLambdaForm(b, /*isVolatile*/false, ftype);
if (form.kind != LambdaForm.Kind.GENERIC) {
forms.add(form);
names.add(form.kind.defaultLambdaName);
}
// volatile
form = DirectMethodHandle
.makePreparedFieldLambdaForm(b, /*isVolatile*/true, ftype);
if (form.kind != LambdaForm.Kind.GENERIC) {
forms.add(form);
names.add(form.kind.defaultLambdaName);
}
}
}
return generateCodeBytesForLFs(className,
names.toArray(new String[0]),
forms.toArray(new LambdaForm[0]));
}
static byte[] generateDelegatingMethodHandleHolderClassBytes(String className,
MethodType[] methodTypes) {
HashSet<MethodType> dedupSet = new HashSet<>();
ArrayList<LambdaForm> forms = new ArrayList<>();
ArrayList<String> names = new ArrayList<>();
for (int i = 0; i < methodTypes.length; i++) {
// generate methods representing the DelegatingMethodHandle
if (dedupSet.add(methodTypes[i])) {
// reinvokers are variant with the associated SpeciesData
// and shape of the target LF, but we can easily pregenerate
// the basic reinvokers associated with Species_L. Ultimately we
// may want to consider pregenerating more of these, which will
// require an even more complex naming scheme
LambdaForm reinvoker = makeReinvokerFor(methodTypes[i]);
forms.add(reinvoker);
String speciesSig = BoundMethodHandle
.speciesData(reinvoker).fieldSignature();
assert(speciesSig.equals("L"));
names.add(reinvoker.kind.defaultLambdaName + "_" + speciesSig);
LambdaForm delegate = makeDelegateFor(methodTypes[i]);
forms.add(delegate);
names.add(delegate.kind.defaultLambdaName);
}
}
return generateCodeBytesForLFs(className,
names.toArray(new String[0]),
forms.toArray(new LambdaForm[0]));
}
static byte[] generateInvokersHolderClassBytes(String className,
MethodType[] methodTypes) {
HashSet<MethodType> dedupSet = new HashSet<>();
ArrayList<LambdaForm> forms = new ArrayList<>();
ArrayList<String> names = new ArrayList<>();
int[] types = {
MethodTypeForm.LF_EX_LINKER,
MethodTypeForm.LF_EX_INVOKER,
MethodTypeForm.LF_GEN_LINKER,
MethodTypeForm.LF_GEN_INVOKER
};
for (int i = 0; i < methodTypes.length; i++) {
// generate methods representing invokers of the specified type
if (dedupSet.add(methodTypes[i])) {
for (int type : types) {
LambdaForm invokerForm = Invokers.invokeHandleForm(methodTypes[i],
/*customized*/false, type);
forms.add(invokerForm);
names.add(invokerForm.kind.defaultLambdaName);
}
}
}
return generateCodeBytesForLFs(className,
names.toArray(new String[0]),
forms.toArray(new LambdaForm[0]));
}
/*
* Generate customized code for a set of LambdaForms of specified types into
* a class with a specified name.
*/
private static byte[] generateCodeBytesForLFs(String className,
String[] names, LambdaForm[] forms) {
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS + ClassWriter.COMPUTE_FRAMES);
cw.visit(Opcodes.V1_8, Opcodes.ACC_PRIVATE + Opcodes.ACC_FINAL + Opcodes.ACC_SUPER,
className, null, InvokerBytecodeGenerator.INVOKER_SUPER_NAME, null);
cw.visitSource(className.substring(className.lastIndexOf('/') + 1), null);
for (int i = 0; i < forms.length; i++) {
addMethod(className, names[i], forms[i],
forms[i].methodType(), cw);
}
return cw.toByteArray();
}
private static void addMethod(String className, String methodName, LambdaForm form,
MethodType type, ClassWriter cw) {
InvokerBytecodeGenerator g
= new InvokerBytecodeGenerator(className, methodName, form, type);
g.setClassWriter(cw);
g.addMethod();
}
private static LambdaForm makeReinvokerFor(MethodType type) {
MethodHandle emptyHandle = MethodHandles.empty(type);
return DelegatingMethodHandle.makeReinvokerForm(emptyHandle,
MethodTypeForm.LF_REBIND,
BoundMethodHandle.speciesData_L(),
BoundMethodHandle.speciesData_L().getterFunction(0));
}
private static LambdaForm makeDelegateFor(MethodType type) {
MethodHandle handle = MethodHandles.empty(type);
return DelegatingMethodHandle.makeReinvokerForm(
handle,
MethodTypeForm.LF_DELEGATE,
DelegatingMethodHandle.class,
DelegatingMethodHandle.NF_getTarget);
}
static Map.Entry<String, byte[]> generateConcreteBMHClassBytes(
final String types) {
for (char c : types.toCharArray()) {
if ("LIJFD".indexOf(c) < 0) {
throw new IllegalArgumentException("All characters must "
+ "correspond to a basic field type: LIJFD");
}
}
String shortTypes = LambdaForm.shortenSignature(types);
final String className =
BoundMethodHandle.Factory.speciesInternalClassName(shortTypes);
return Map.entry(className,
BoundMethodHandle.Factory.generateConcreteBMHClassBytes(
shortTypes, types, className));
}
}