author | vlivanov |
Wed, 10 Sep 2014 19:19:52 +0400 | |
changeset 26481 | c5b74a88a3c0 |
parent 26480 | 92d431f1ec8d |
child 26482 | cea1ab1c3ac7 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package java.lang.invoke; |
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import java.security.AccessController; |
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import java.security.PrivilegedAction; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.Collections; |
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import sun.invoke.empty.Empty; |
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import sun.invoke.util.ValueConversions; |
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import sun.invoke.util.VerifyType; |
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import sun.invoke.util.Wrapper; |
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import sun.reflect.CallerSensitive; |
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import sun.reflect.Reflection; |
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import static java.lang.invoke.LambdaForm.*; |
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import static java.lang.invoke.MethodHandleStatics.*; |
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import static java.lang.invoke.MethodHandles.Lookup.IMPL_LOOKUP; |
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/** |
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* Trusted implementation code for MethodHandle. |
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* @author jrose |
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*/ |
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/*non-public*/ abstract class MethodHandleImpl { |
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// Do not adjust this except for special platforms: |
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private static final int MAX_ARITY; |
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static { |
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final Object[] values = { 255 }; |
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AccessController.doPrivileged(new PrivilegedAction<Void>() { |
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@Override |
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public Void run() { |
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values[0] = Integer.getInteger(MethodHandleImpl.class.getName()+".MAX_ARITY", 255); |
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return null; |
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} |
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}); |
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MAX_ARITY = (Integer) values[0]; |
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} |
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/// Factory methods to create method handles: |
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static void initStatics() { |
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// Trigger selected static initializations. |
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MemberName.Factory.INSTANCE.getClass(); |
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} |
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static MethodHandle makeArrayElementAccessor(Class<?> arrayClass, boolean isSetter) { |
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if (arrayClass == Object[].class) |
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return (isSetter ? ArrayAccessor.OBJECT_ARRAY_SETTER : ArrayAccessor.OBJECT_ARRAY_GETTER); |
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if (!arrayClass.isArray()) |
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throw newIllegalArgumentException("not an array: "+arrayClass); |
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MethodHandle[] cache = ArrayAccessor.TYPED_ACCESSORS.get(arrayClass); |
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int cacheIndex = (isSetter ? ArrayAccessor.SETTER_INDEX : ArrayAccessor.GETTER_INDEX); |
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MethodHandle mh = cache[cacheIndex]; |
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if (mh != null) return mh; |
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mh = ArrayAccessor.getAccessor(arrayClass, isSetter); |
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MethodType correctType = ArrayAccessor.correctType(arrayClass, isSetter); |
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if (mh.type() != correctType) { |
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assert(mh.type().parameterType(0) == Object[].class); |
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assert((isSetter ? mh.type().parameterType(2) : mh.type().returnType()) == Object.class); |
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assert(isSetter || correctType.parameterType(0).getComponentType() == correctType.returnType()); |
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// safe to view non-strictly, because element type follows from array type |
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mh = mh.viewAsType(correctType, false); |
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} |
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mh = makeIntrinsic(mh, (isSetter ? Intrinsic.ARRAY_STORE : Intrinsic.ARRAY_LOAD)); |
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// Atomically update accessor cache. |
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synchronized(cache) { |
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if (cache[cacheIndex] == null) { |
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cache[cacheIndex] = mh; |
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} else { |
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// Throw away newly constructed accessor and use cached version. |
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mh = cache[cacheIndex]; |
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} |
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} |
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return mh; |
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} |
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static final class ArrayAccessor { |
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/// Support for array element access |
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static final int GETTER_INDEX = 0, SETTER_INDEX = 1, INDEX_LIMIT = 2; |
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static final ClassValue<MethodHandle[]> TYPED_ACCESSORS |
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= new ClassValue<MethodHandle[]>() { |
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@Override |
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protected MethodHandle[] computeValue(Class<?> type) { |
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return new MethodHandle[INDEX_LIMIT]; |
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} |
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}; |
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static final MethodHandle OBJECT_ARRAY_GETTER, OBJECT_ARRAY_SETTER; |
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static { |
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MethodHandle[] cache = TYPED_ACCESSORS.get(Object[].class); |
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cache[GETTER_INDEX] = OBJECT_ARRAY_GETTER = makeIntrinsic(getAccessor(Object[].class, false), Intrinsic.ARRAY_LOAD); |
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cache[SETTER_INDEX] = OBJECT_ARRAY_SETTER = makeIntrinsic(getAccessor(Object[].class, true), Intrinsic.ARRAY_STORE); |
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assert(InvokerBytecodeGenerator.isStaticallyInvocable(ArrayAccessor.OBJECT_ARRAY_GETTER.internalMemberName())); |
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assert(InvokerBytecodeGenerator.isStaticallyInvocable(ArrayAccessor.OBJECT_ARRAY_SETTER.internalMemberName())); |
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} |
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static int getElementI(int[] a, int i) { return a[i]; } |
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static long getElementJ(long[] a, int i) { return a[i]; } |
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static float getElementF(float[] a, int i) { return a[i]; } |
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static double getElementD(double[] a, int i) { return a[i]; } |
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static boolean getElementZ(boolean[] a, int i) { return a[i]; } |
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static byte getElementB(byte[] a, int i) { return a[i]; } |
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static short getElementS(short[] a, int i) { return a[i]; } |
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static char getElementC(char[] a, int i) { return a[i]; } |
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static Object getElementL(Object[] a, int i) { return a[i]; } |
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130 |
|
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static void setElementI(int[] a, int i, int x) { a[i] = x; } |
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static void setElementJ(long[] a, int i, long x) { a[i] = x; } |
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static void setElementF(float[] a, int i, float x) { a[i] = x; } |
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static void setElementD(double[] a, int i, double x) { a[i] = x; } |
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static void setElementZ(boolean[] a, int i, boolean x) { a[i] = x; } |
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static void setElementB(byte[] a, int i, byte x) { a[i] = x; } |
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static void setElementS(short[] a, int i, short x) { a[i] = x; } |
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static void setElementC(char[] a, int i, char x) { a[i] = x; } |
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static void setElementL(Object[] a, int i, Object x) { a[i] = x; } |
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140 |
|
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static String name(Class<?> arrayClass, boolean isSetter) { |
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Class<?> elemClass = arrayClass.getComponentType(); |
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if (elemClass == null) throw newIllegalArgumentException("not an array", arrayClass); |
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return (!isSetter ? "getElement" : "setElement") + Wrapper.basicTypeChar(elemClass); |
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} |
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static MethodType type(Class<?> arrayClass, boolean isSetter) { |
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Class<?> elemClass = arrayClass.getComponentType(); |
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Class<?> arrayArgClass = arrayClass; |
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if (!elemClass.isPrimitive()) { |
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arrayArgClass = Object[].class; |
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elemClass = Object.class; |
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} |
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return !isSetter ? |
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154 |
MethodType.methodType(elemClass, arrayArgClass, int.class) : |
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MethodType.methodType(void.class, arrayArgClass, int.class, elemClass); |
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} |
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static MethodType correctType(Class<?> arrayClass, boolean isSetter) { |
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Class<?> elemClass = arrayClass.getComponentType(); |
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return !isSetter ? |
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MethodType.methodType(elemClass, arrayClass, int.class) : |
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MethodType.methodType(void.class, arrayClass, int.class, elemClass); |
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} |
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static MethodHandle getAccessor(Class<?> arrayClass, boolean isSetter) { |
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String name = name(arrayClass, isSetter); |
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MethodType type = type(arrayClass, isSetter); |
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try { |
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return IMPL_LOOKUP.findStatic(ArrayAccessor.class, name, type); |
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} catch (ReflectiveOperationException ex) { |
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throw uncaughtException(ex); |
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} |
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} |
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} |
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173 |
|
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174 |
/** |
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* Create a JVM-level adapter method handle to conform the given method |
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* handle to the similar newType, using only pairwise argument conversions. |
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* For each argument, convert incoming argument to the exact type needed. |
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* The argument conversions allowed are casting, boxing and unboxing, |
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* integral widening or narrowing, and floating point widening or narrowing. |
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* @param srcType required call type |
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* @param target original method handle |
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* @param strict if true, only asType conversions are allowed; if false, explicitCastArguments conversions allowed |
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* @param monobox if true, unboxing conversions are assumed to be exactly typed (Integer to int only, not long or double) |
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* @return an adapter to the original handle with the desired new type, |
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185 |
* or the original target if the types are already identical |
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* or null if the adaptation cannot be made |
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187 |
*/ |
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188 |
static MethodHandle makePairwiseConvert(MethodHandle target, MethodType srcType, |
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189 |
boolean strict, boolean monobox) { |
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190 |
MethodType dstType = target.type(); |
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191 |
assert(dstType.parameterCount() == target.type().parameterCount()); |
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192 |
if (srcType == dstType) |
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193 |
return target; |
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194 |
return makePairwiseConvertIndirect(target, srcType, strict, monobox); |
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195 |
} |
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196 |
|
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197 |
private static int countNonNull(Object[] array) { |
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198 |
int count = 0; |
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199 |
for (Object x : array) { |
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200 |
if (x != null) ++count; |
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201 |
} |
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202 |
return count; |
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203 |
} |
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204 |
|
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205 |
static MethodHandle makePairwiseConvertIndirect(MethodHandle target, MethodType srcType, |
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206 |
boolean strict, boolean monobox) { |
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207 |
// Calculate extra arguments (temporaries) required in the names array. |
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208 |
Object[] convSpecs = computeValueConversions(srcType, target.type(), strict, monobox); |
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209 |
final int INARG_COUNT = srcType.parameterCount(); |
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210 |
int convCount = countNonNull(convSpecs); |
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211 |
boolean retConv = (convSpecs[INARG_COUNT] != null); |
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212 |
boolean retVoid = srcType.returnType() == void.class; |
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213 |
if (retConv && retVoid) { |
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convCount -= 1; |
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215 |
retConv = false; |
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216 |
} |
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217 |
|
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218 |
final int IN_MH = 0; |
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219 |
final int INARG_BASE = 1; |
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220 |
final int INARG_LIMIT = INARG_BASE + INARG_COUNT; |
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221 |
final int NAME_LIMIT = INARG_LIMIT + convCount + 1; |
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222 |
final int RETURN_CONV = (!retConv ? -1 : NAME_LIMIT - 1); |
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223 |
final int OUT_CALL = (!retConv ? NAME_LIMIT : RETURN_CONV) - 1; |
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224 |
final int RESULT = (retVoid ? -1 : NAME_LIMIT - 1); |
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225 |
|
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226 |
// Now build a LambdaForm. |
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227 |
MethodType lambdaType = srcType.basicType().invokerType(); |
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228 |
Name[] names = arguments(NAME_LIMIT - INARG_LIMIT, lambdaType); |
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229 |
|
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230 |
// Collect the arguments to the outgoing call, maybe with conversions: |
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231 |
final int OUTARG_BASE = 0; // target MH is Name.function, name Name.arguments[0] |
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232 |
Object[] outArgs = new Object[OUTARG_BASE + INARG_COUNT]; |
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233 |
|
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234 |
int nameCursor = INARG_LIMIT; |
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235 |
for (int i = 0; i < INARG_COUNT; i++) { |
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236 |
Object convSpec = convSpecs[i]; |
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237 |
if (convSpec == null) { |
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238 |
// do nothing: difference is trivial |
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239 |
outArgs[OUTARG_BASE + i] = names[INARG_BASE + i]; |
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|
240 |
continue; |
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|
241 |
} |
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242 |
|
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243 |
Name conv; |
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244 |
if (convSpec instanceof Class) { |
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Class<?> convClass = (Class<?>) convSpec; |
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conv = new Name(Lazy.MH_castReference, convClass, names[INARG_BASE + i]); |
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247 |
} else { |
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248 |
MethodHandle fn = (MethodHandle) convSpec; |
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249 |
conv = new Name(fn, names[INARG_BASE + i]); |
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250 |
} |
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251 |
assert(names[nameCursor] == null); |
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252 |
names[nameCursor++] = conv; |
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253 |
assert(outArgs[OUTARG_BASE + i] == null); |
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254 |
outArgs[OUTARG_BASE + i] = conv; |
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255 |
} |
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256 |
|
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257 |
// Build argument array for the call. |
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258 |
assert(nameCursor == OUT_CALL); |
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|
259 |
names[OUT_CALL] = new Name(target, outArgs); |
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260 |
|
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261 |
Object convSpec = convSpecs[INARG_COUNT]; |
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262 |
if (!retConv) { |
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263 |
assert(OUT_CALL == names.length-1); |
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|
264 |
} else { |
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265 |
Name conv; |
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|
266 |
if (convSpec == void.class) { |
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267 |
conv = new Name(LambdaForm.constantZero(BasicType.basicType(srcType.returnType()))); |
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268 |
} else if (convSpec instanceof Class) { |
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269 |
Class<?> convClass = (Class<?>) convSpec; |
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270 |
conv = new Name(Lazy.MH_castReference, convClass, names[OUT_CALL]); |
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271 |
} else { |
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272 |
MethodHandle fn = (MethodHandle) convSpec; |
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273 |
if (fn.type().parameterCount() == 0) |
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274 |
conv = new Name(fn); // don't pass retval to void conversion |
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275 |
else |
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276 |
conv = new Name(fn, names[OUT_CALL]); |
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277 |
} |
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|
278 |
assert(names[RETURN_CONV] == null); |
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|
279 |
names[RETURN_CONV] = conv; |
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|
280 |
assert(RETURN_CONV == names.length-1); |
4537 | 281 |
} |
282 |
||
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|
283 |
LambdaForm form = new LambdaForm("convert", lambdaType.parameterCount(), names, RESULT); |
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|
284 |
return SimpleMethodHandle.make(srcType, form); |
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|
285 |
} |
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|
286 |
|
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|
287 |
/** |
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|
288 |
* Identity function, with reference cast. |
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|
289 |
* @param t an arbitrary reference type |
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|
290 |
* @param x an arbitrary reference value |
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|
291 |
* @return the same value x |
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|
292 |
*/ |
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|
293 |
@ForceInline |
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|
294 |
@SuppressWarnings("unchecked") |
6ee70bc18809
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|
295 |
static <T,U> T castReference(Class<? extends T> t, U x) { |
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|
296 |
// inlined Class.cast because we can't ForceInline it |
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|
297 |
if (x != null && !t.isInstance(x)) |
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|
298 |
throw newClassCastException(t, x); |
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|
299 |
return (T) x; |
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|
300 |
} |
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|
301 |
|
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|
302 |
private static ClassCastException newClassCastException(Class<?> t, Object obj) { |
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|
303 |
return new ClassCastException("Cannot cast " + obj.getClass().getName() + " to " + t.getName()); |
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|
304 |
} |
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|
305 |
|
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|
306 |
static Object[] computeValueConversions(MethodType srcType, MethodType dstType, |
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|
307 |
boolean strict, boolean monobox) { |
655d08549e43
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|
308 |
final int INARG_COUNT = srcType.parameterCount(); |
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|
309 |
Object[] convSpecs = new Object[INARG_COUNT+1]; |
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|
310 |
for (int i = 0; i <= INARG_COUNT; i++) { |
655d08549e43
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|
311 |
boolean isRet = (i == INARG_COUNT); |
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|
312 |
Class<?> src = isRet ? dstType.returnType() : srcType.parameterType(i); |
655d08549e43
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|
313 |
Class<?> dst = isRet ? srcType.returnType() : dstType.parameterType(i); |
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|
314 |
if (!VerifyType.isNullConversion(src, dst, /*keepInterfaces=*/ strict)) { |
655d08549e43
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|
315 |
convSpecs[i] = valueConversion(src, dst, strict, monobox); |
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|
316 |
} |
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|
317 |
} |
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|
318 |
return convSpecs; |
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changeset
|
319 |
} |
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|
320 |
static MethodHandle makePairwiseConvert(MethodHandle target, MethodType srcType, |
655d08549e43
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|
321 |
boolean strict) { |
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|
322 |
return makePairwiseConvert(target, srcType, strict, /*monobox=*/ false); |
655d08549e43
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|
323 |
} |
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changeset
|
324 |
|
655d08549e43
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|
325 |
/** |
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|
326 |
* Find a conversion function from the given source to the given destination. |
655d08549e43
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|
327 |
* This conversion function will be used as a LF NamedFunction. |
655d08549e43
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|
328 |
* Return a Class object if a simple cast is needed. |
655d08549e43
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|
329 |
* Return void.class if void is involved. |
655d08549e43
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|
330 |
*/ |
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|
331 |
static Object valueConversion(Class<?> src, Class<?> dst, boolean strict, boolean monobox) { |
655d08549e43
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|
332 |
assert(!VerifyType.isNullConversion(src, dst, /*keepInterfaces=*/ strict)); // caller responsibility |
655d08549e43
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|
333 |
if (dst == void.class) |
655d08549e43
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changeset
|
334 |
return dst; |
655d08549e43
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changeset
|
335 |
MethodHandle fn; |
655d08549e43
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changeset
|
336 |
if (src.isPrimitive()) { |
655d08549e43
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changeset
|
337 |
if (src == void.class) { |
655d08549e43
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|
338 |
return void.class; // caller must recognize this specially |
655d08549e43
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|
339 |
} else if (dst.isPrimitive()) { |
655d08549e43
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|
340 |
// Examples: int->byte, byte->int, boolean->int (!strict) |
655d08549e43
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|
341 |
fn = ValueConversions.convertPrimitive(src, dst); |
655d08549e43
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|
342 |
} else { |
655d08549e43
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|
343 |
// Examples: int->Integer, boolean->Object, float->Number |
655d08549e43
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|
344 |
Wrapper wsrc = Wrapper.forPrimitiveType(src); |
655d08549e43
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|
345 |
fn = ValueConversions.boxExact(wsrc); |
655d08549e43
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|
346 |
assert(fn.type().parameterType(0) == wsrc.primitiveType()); |
655d08549e43
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|
347 |
assert(fn.type().returnType() == wsrc.wrapperType()); |
655d08549e43
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|
348 |
if (!VerifyType.isNullConversion(wsrc.wrapperType(), dst, strict)) { |
655d08549e43
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|
349 |
// Corner case, such as int->Long, which will probably fail. |
655d08549e43
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|
350 |
MethodType mt = MethodType.methodType(dst, src); |
655d08549e43
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|
351 |
if (strict) |
655d08549e43
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|
352 |
fn = fn.asType(mt); |
655d08549e43
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|
353 |
else |
655d08549e43
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|
354 |
fn = MethodHandleImpl.makePairwiseConvert(fn, mt, /*strict=*/ false); |
655d08549e43
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changeset
|
355 |
} |
655d08549e43
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changeset
|
356 |
} |
655d08549e43
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changeset
|
357 |
} else if (dst.isPrimitive()) { |
655d08549e43
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changeset
|
358 |
Wrapper wdst = Wrapper.forPrimitiveType(dst); |
655d08549e43
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changeset
|
359 |
if (monobox || src == wdst.wrapperType()) { |
655d08549e43
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changeset
|
360 |
// Use a strongly-typed unboxer, if possible. |
655d08549e43
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changeset
|
361 |
fn = ValueConversions.unboxExact(wdst, strict); |
655d08549e43
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vlivanov
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changeset
|
362 |
} else { |
655d08549e43
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changeset
|
363 |
// Examples: Object->int, Number->int, Comparable->int, Byte->int |
655d08549e43
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vlivanov
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changeset
|
364 |
// must include additional conversions |
655d08549e43
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|
365 |
// src must be examined at runtime, to detect Byte, Character, etc. |
655d08549e43
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|
366 |
fn = (strict |
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|
367 |
? ValueConversions.unboxWiden(wdst) |
655d08549e43
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|
368 |
: ValueConversions.unboxCast(wdst)); |
655d08549e43
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|
369 |
} |
655d08549e43
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|
370 |
} else { |
655d08549e43
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changeset
|
371 |
// Simple reference conversion. |
655d08549e43
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changeset
|
372 |
// Note: Do not check for a class hierarchy relation |
655d08549e43
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changeset
|
373 |
// between src and dst. In all cases a 'null' argument |
655d08549e43
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changeset
|
374 |
// will pass the cast conversion. |
655d08549e43
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parents:
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diff
changeset
|
375 |
return dst; |
655d08549e43
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vlivanov
parents:
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diff
changeset
|
376 |
} |
655d08549e43
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vlivanov
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changeset
|
377 |
assert(fn.type().parameterCount() <= 1) : "pc"+Arrays.asList(src.getSimpleName(), dst.getSimpleName(), fn); |
655d08549e43
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parents:
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changeset
|
378 |
return fn; |
655d08549e43
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vlivanov
parents:
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diff
changeset
|
379 |
} |
655d08549e43
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parents:
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changeset
|
380 |
|
13423
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twisti
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13420
diff
changeset
|
381 |
static MethodHandle makeVarargsCollector(MethodHandle target, Class<?> arrayType) { |
17843fff200d
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|
382 |
MethodType type = target.type(); |
17843fff200d
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changeset
|
383 |
int last = type.parameterCount() - 1; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
384 |
if (type.parameterType(last) != arrayType) |
17843fff200d
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|
385 |
target = target.asType(type.changeParameterType(last, arrayType)); |
17843fff200d
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|
386 |
target = target.asFixedArity(); // make sure this attribute is turned off |
26472
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changeset
|
387 |
return new AsVarargsCollector(target, arrayType); |
13423
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parents:
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changeset
|
388 |
} |
17843fff200d
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parents:
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changeset
|
389 |
|
26472
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changeset
|
390 |
private static final class AsVarargsCollector extends DelegatingMethodHandle { |
14852 | 391 |
private final MethodHandle target; |
392 |
private final Class<?> arrayType; |
|
26467
d69abed3a07d
8050052: Small cleanups in java.lang.invoke code
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26466
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changeset
|
393 |
private @Stable MethodHandle asCollectorCache; |
13423
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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changeset
|
394 |
|
26472
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8050057: Improve caching of MethodHandle reinvokers
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changeset
|
395 |
AsVarargsCollector(MethodHandle target, Class<?> arrayType) { |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
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diff
changeset
|
396 |
this(target.type(), target, arrayType); |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
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changeset
|
397 |
} |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
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changeset
|
398 |
AsVarargsCollector(MethodType type, MethodHandle target, Class<?> arrayType) { |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
399 |
super(type, target); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
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diff
changeset
|
400 |
this.target = target; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
401 |
this.arrayType = arrayType; |
20527
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20495
diff
changeset
|
402 |
this.asCollectorCache = target.asCollector(arrayType, 0); |
4537 | 403 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
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diff
changeset
|
404 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
405 |
@Override |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
406 |
public boolean isVarargsCollector() { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
407 |
return true; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
408 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
409 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
410 |
@Override |
26472
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8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
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diff
changeset
|
411 |
protected MethodHandle getTarget() { |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
412 |
return target; |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
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diff
changeset
|
413 |
} |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
414 |
|
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
415 |
@Override |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
416 |
public MethodHandle asFixedArity() { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
417 |
return target; |
4537 | 418 |
} |
419 |
||
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
420 |
@Override |
26472
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
421 |
MethodHandle setVarargs(MemberName member) { |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
422 |
if (member.isVarargs()) return this; |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
423 |
return asFixedArity(); |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
424 |
} |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
425 |
|
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
426 |
@Override |
20527
d241258cfbcb
8024761: JSR 292 improve performance of generic invocation
jrose
parents:
20495
diff
changeset
|
427 |
public MethodHandle asTypeUncached(MethodType newType) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
428 |
MethodType type = this.type(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
429 |
int collectArg = type.parameterCount() - 1; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
430 |
int newArity = newType.parameterCount(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
431 |
if (newArity == collectArg+1 && |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
432 |
type.parameterType(collectArg).isAssignableFrom(newType.parameterType(collectArg))) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
433 |
// if arity and trailing parameter are compatible, do normal thing |
20527
d241258cfbcb
8024761: JSR 292 improve performance of generic invocation
jrose
parents:
20495
diff
changeset
|
434 |
return asTypeCache = asFixedArity().asType(newType); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
435 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
436 |
// check cache |
20527
d241258cfbcb
8024761: JSR 292 improve performance of generic invocation
jrose
parents:
20495
diff
changeset
|
437 |
MethodHandle acc = asCollectorCache; |
d241258cfbcb
8024761: JSR 292 improve performance of generic invocation
jrose
parents:
20495
diff
changeset
|
438 |
if (acc != null && acc.type().parameterCount() == newArity) |
d241258cfbcb
8024761: JSR 292 improve performance of generic invocation
jrose
parents:
20495
diff
changeset
|
439 |
return asTypeCache = acc.asType(newType); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
440 |
// build and cache a collector |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
441 |
int arrayLength = newArity - collectArg; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
442 |
MethodHandle collector; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
443 |
try { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
444 |
collector = asFixedArity().asCollector(arrayType, arrayLength); |
13610
28122b96858e
7191102: nightly failures after JSR 292 lazy method handle update (round 3)
jrose
parents:
13423
diff
changeset
|
445 |
assert(collector.type().parameterCount() == newArity) : "newArity="+newArity+" but collector="+collector; |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
446 |
} catch (IllegalArgumentException ex) { |
13610
28122b96858e
7191102: nightly failures after JSR 292 lazy method handle update (round 3)
jrose
parents:
13423
diff
changeset
|
447 |
throw new WrongMethodTypeException("cannot build collector", ex); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
448 |
} |
20527
d241258cfbcb
8024761: JSR 292 improve performance of generic invocation
jrose
parents:
20495
diff
changeset
|
449 |
asCollectorCache = collector; |
d241258cfbcb
8024761: JSR 292 improve performance of generic invocation
jrose
parents:
20495
diff
changeset
|
450 |
return asTypeCache = collector.asType(newType); |
4537 | 451 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
452 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
453 |
@Override |
26470
1586df597397
8050173: Add j.l.i.MethodHandle.copyWith(MethodType, LambdaForm)
vlivanov
parents:
26469
diff
changeset
|
454 |
boolean viewAsTypeChecks(MethodType newType, boolean strict) { |
1586df597397
8050173: Add j.l.i.MethodHandle.copyWith(MethodType, LambdaForm)
vlivanov
parents:
26469
diff
changeset
|
455 |
super.viewAsTypeChecks(newType, true); |
1586df597397
8050173: Add j.l.i.MethodHandle.copyWith(MethodType, LambdaForm)
vlivanov
parents:
26469
diff
changeset
|
456 |
if (strict) return true; |
1586df597397
8050173: Add j.l.i.MethodHandle.copyWith(MethodType, LambdaForm)
vlivanov
parents:
26469
diff
changeset
|
457 |
// extra assertion for non-strict checks: |
1586df597397
8050173: Add j.l.i.MethodHandle.copyWith(MethodType, LambdaForm)
vlivanov
parents:
26469
diff
changeset
|
458 |
assert (type().lastParameterType().getComponentType() |
1586df597397
8050173: Add j.l.i.MethodHandle.copyWith(MethodType, LambdaForm)
vlivanov
parents:
26469
diff
changeset
|
459 |
.isAssignableFrom( |
1586df597397
8050173: Add j.l.i.MethodHandle.copyWith(MethodType, LambdaForm)
vlivanov
parents:
26469
diff
changeset
|
460 |
newType.lastParameterType().getComponentType())) |
1586df597397
8050173: Add j.l.i.MethodHandle.copyWith(MethodType, LambdaForm)
vlivanov
parents:
26469
diff
changeset
|
461 |
: Arrays.asList(this, newType); |
1586df597397
8050173: Add j.l.i.MethodHandle.copyWith(MethodType, LambdaForm)
vlivanov
parents:
26469
diff
changeset
|
462 |
return true; |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
463 |
} |
2707
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
464 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
465 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
466 |
/** Factory method: Spread selected argument. */ |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
467 |
static MethodHandle makeSpreadArguments(MethodHandle target, |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
468 |
Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
469 |
MethodType targetType = target.type(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
470 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
471 |
for (int i = 0; i < spreadArgCount; i++) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
472 |
Class<?> arg = VerifyType.spreadArgElementType(spreadArgType, i); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
473 |
if (arg == null) arg = Object.class; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
474 |
targetType = targetType.changeParameterType(spreadArgPos + i, arg); |
2764
2e45af54c0f9
6839839: access checking logic is wrong at three points in MethodHandles
jrose
parents:
2707
diff
changeset
|
475 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
476 |
target = target.asType(targetType); |
2707
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
477 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
478 |
MethodType srcType = targetType |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
479 |
.replaceParameterTypes(spreadArgPos, spreadArgPos + spreadArgCount, spreadArgType); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
480 |
// Now build a LambdaForm. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
481 |
MethodType lambdaType = srcType.invokerType(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
482 |
Name[] names = arguments(spreadArgCount + 2, lambdaType); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
483 |
int nameCursor = lambdaType.parameterCount(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
484 |
int[] indexes = new int[targetType.parameterCount()]; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
485 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
486 |
for (int i = 0, argIndex = 1; i < targetType.parameterCount() + 1; i++, argIndex++) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
487 |
Class<?> src = lambdaType.parameterType(i); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
488 |
if (i == spreadArgPos) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
489 |
// Spread the array. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
490 |
MethodHandle aload = MethodHandles.arrayElementGetter(spreadArgType); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
491 |
Name array = names[argIndex]; |
20495
6586c2f78d57
8024616: JSR292: lazily initialize core NamedFunctions used for bootstrapping
vlivanov
parents:
19804
diff
changeset
|
492 |
names[nameCursor++] = new Name(Lazy.NF_checkSpreadArgument, array, spreadArgCount); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
493 |
for (int j = 0; j < spreadArgCount; i++, j++) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
494 |
indexes[i] = nameCursor; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
495 |
names[nameCursor++] = new Name(aload, array, j); |
4537 | 496 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
497 |
} else if (i < indexes.length) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
498 |
indexes[i] = argIndex; |
4537 | 499 |
} |
9646
5ebbe5ab084f
6939861: JVM should handle more conversion operations
jrose
parents:
8822
diff
changeset
|
500 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
501 |
assert(nameCursor == names.length-1); // leave room for the final call |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
502 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
503 |
// Build argument array for the call. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
504 |
Name[] targetArgs = new Name[targetType.parameterCount()]; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
505 |
for (int i = 0; i < targetType.parameterCount(); i++) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
506 |
int idx = indexes[i]; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
507 |
targetArgs[i] = names[idx]; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
508 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
509 |
names[names.length - 1] = new Name(target, (Object[]) targetArgs); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
510 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
511 |
LambdaForm form = new LambdaForm("spread", lambdaType.parameterCount(), names); |
13610
28122b96858e
7191102: nightly failures after JSR 292 lazy method handle update (round 3)
jrose
parents:
13423
diff
changeset
|
512 |
return SimpleMethodHandle.make(srcType, form); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
513 |
} |
4537 | 514 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
515 |
static void checkSpreadArgument(Object av, int n) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
516 |
if (av == null) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
517 |
if (n == 0) return; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
518 |
} else if (av instanceof Object[]) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
519 |
int len = ((Object[])av).length; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
520 |
if (len == n) return; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
521 |
} else { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
522 |
int len = java.lang.reflect.Array.getLength(av); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
523 |
if (len == n) return; |
9646
5ebbe5ab084f
6939861: JVM should handle more conversion operations
jrose
parents:
8822
diff
changeset
|
524 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
525 |
// fall through to error: |
20530
b54a1f5cd35f
8001109: arity mismatch on a call to spreader method handle should elicit IllegalArgumentException
jrose
parents:
20527
diff
changeset
|
526 |
throw newIllegalArgumentException("array is not of length "+n); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
527 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
528 |
|
20495
6586c2f78d57
8024616: JSR292: lazily initialize core NamedFunctions used for bootstrapping
vlivanov
parents:
19804
diff
changeset
|
529 |
/** |
6586c2f78d57
8024616: JSR292: lazily initialize core NamedFunctions used for bootstrapping
vlivanov
parents:
19804
diff
changeset
|
530 |
* Pre-initialized NamedFunctions for bootstrapping purposes. |
6586c2f78d57
8024616: JSR292: lazily initialize core NamedFunctions used for bootstrapping
vlivanov
parents:
19804
diff
changeset
|
531 |
* Factored in an inner class to delay initialization until first usage. |
6586c2f78d57
8024616: JSR292: lazily initialize core NamedFunctions used for bootstrapping
vlivanov
parents:
19804
diff
changeset
|
532 |
*/ |
26481
c5b74a88a3c0
8057042: LambdaFormEditor: derive new LFs from a base LF
vlivanov
parents:
26480
diff
changeset
|
533 |
static class Lazy { |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
534 |
private static final Class<?> MHI = MethodHandleImpl.class; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
535 |
|
20495
6586c2f78d57
8024616: JSR292: lazily initialize core NamedFunctions used for bootstrapping
vlivanov
parents:
19804
diff
changeset
|
536 |
static final NamedFunction NF_checkSpreadArgument; |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
537 |
static final NamedFunction NF_guardWithCatch; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
538 |
static final NamedFunction NF_throwException; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
539 |
|
23039
6ee70bc18809
8033666: Make sure @ForceInline is everywhere it needs to be in sun.misc and java.lang.invoke
vlivanov
parents:
23038
diff
changeset
|
540 |
static final MethodHandle MH_castReference; |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
541 |
static final MethodHandle MH_selectAlternative; |
26466
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
542 |
static final MethodHandle MH_copyAsPrimitiveArray; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
543 |
static final MethodHandle MH_fillNewTypedArray; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
544 |
static final MethodHandle MH_fillNewArray; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
545 |
static final MethodHandle MH_arrayIdentity; |
23039
6ee70bc18809
8033666: Make sure @ForceInline is everywhere it needs to be in sun.misc and java.lang.invoke
vlivanov
parents:
23038
diff
changeset
|
546 |
|
20495
6586c2f78d57
8024616: JSR292: lazily initialize core NamedFunctions used for bootstrapping
vlivanov
parents:
19804
diff
changeset
|
547 |
static { |
6586c2f78d57
8024616: JSR292: lazily initialize core NamedFunctions used for bootstrapping
vlivanov
parents:
19804
diff
changeset
|
548 |
try { |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
549 |
NF_checkSpreadArgument = new NamedFunction(MHI.getDeclaredMethod("checkSpreadArgument", Object.class, int.class)); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
550 |
NF_guardWithCatch = new NamedFunction(MHI.getDeclaredMethod("guardWithCatch", MethodHandle.class, Class.class, |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
551 |
MethodHandle.class, Object[].class)); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
552 |
NF_throwException = new NamedFunction(MHI.getDeclaredMethod("throwException", Throwable.class)); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
553 |
|
20495
6586c2f78d57
8024616: JSR292: lazily initialize core NamedFunctions used for bootstrapping
vlivanov
parents:
19804
diff
changeset
|
554 |
NF_checkSpreadArgument.resolve(); |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
555 |
NF_guardWithCatch.resolve(); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
556 |
NF_throwException.resolve(); |
23039
6ee70bc18809
8033666: Make sure @ForceInline is everywhere it needs to be in sun.misc and java.lang.invoke
vlivanov
parents:
23038
diff
changeset
|
557 |
|
26466
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
558 |
MH_castReference = IMPL_LOOKUP.findStatic(MHI, "castReference", |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
559 |
MethodType.methodType(Object.class, Class.class, Object.class)); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
560 |
MH_copyAsPrimitiveArray = IMPL_LOOKUP.findStatic(MHI, "copyAsPrimitiveArray", |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
561 |
MethodType.methodType(Object.class, Wrapper.class, Object[].class)); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
562 |
MH_arrayIdentity = IMPL_LOOKUP.findStatic(MHI, "identity", |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
563 |
MethodType.methodType(Object[].class, Object[].class)); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
564 |
MH_fillNewArray = IMPL_LOOKUP.findStatic(MHI, "fillNewArray", |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
565 |
MethodType.methodType(Object[].class, Integer.class, Object[].class)); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
566 |
MH_fillNewTypedArray = IMPL_LOOKUP.findStatic(MHI, "fillNewTypedArray", |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
567 |
MethodType.methodType(Object[].class, Object[].class, Integer.class, Object[].class)); |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
568 |
|
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
569 |
MH_selectAlternative = makeIntrinsic( |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
570 |
IMPL_LOOKUP.findStatic(MHI, "selectAlternative", |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
571 |
MethodType.methodType(MethodHandle.class, boolean.class, MethodHandle.class, MethodHandle.class)), |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
572 |
Intrinsic.SELECT_ALTERNATIVE); |
20495
6586c2f78d57
8024616: JSR292: lazily initialize core NamedFunctions used for bootstrapping
vlivanov
parents:
19804
diff
changeset
|
573 |
} catch (ReflectiveOperationException ex) { |
6586c2f78d57
8024616: JSR292: lazily initialize core NamedFunctions used for bootstrapping
vlivanov
parents:
19804
diff
changeset
|
574 |
throw newInternalError(ex); |
6586c2f78d57
8024616: JSR292: lazily initialize core NamedFunctions used for bootstrapping
vlivanov
parents:
19804
diff
changeset
|
575 |
} |
9646
5ebbe5ab084f
6939861: JVM should handle more conversion operations
jrose
parents:
8822
diff
changeset
|
576 |
} |
5ebbe5ab084f
6939861: JVM should handle more conversion operations
jrose
parents:
8822
diff
changeset
|
577 |
} |
5ebbe5ab084f
6939861: JVM should handle more conversion operations
jrose
parents:
8822
diff
changeset
|
578 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
579 |
/** Factory method: Collect or filter selected argument(s). */ |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
580 |
static MethodHandle makeCollectArguments(MethodHandle target, |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
581 |
MethodHandle collector, int collectArgPos, boolean retainOriginalArgs) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
582 |
MethodType targetType = target.type(); // (a..., c, [b...])=>r |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
583 |
MethodType collectorType = collector.type(); // (b...)=>c |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
584 |
int collectArgCount = collectorType.parameterCount(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
585 |
Class<?> collectValType = collectorType.returnType(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
586 |
int collectValCount = (collectValType == void.class ? 0 : 1); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
587 |
MethodType srcType = targetType // (a..., [b...])=>r |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
588 |
.dropParameterTypes(collectArgPos, collectArgPos+collectValCount); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
589 |
if (!retainOriginalArgs) { // (a..., b...)=>r |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
590 |
srcType = srcType.insertParameterTypes(collectArgPos, collectorType.parameterList()); |
9646
5ebbe5ab084f
6939861: JVM should handle more conversion operations
jrose
parents:
8822
diff
changeset
|
591 |
} |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
592 |
// in arglist: [0: ...keep1 | cpos: collect... | cpos+cacount: keep2... ] |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
593 |
// out arglist: [0: ...keep1 | cpos: collectVal? | cpos+cvcount: keep2... ] |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
594 |
// out(retain): [0: ...keep1 | cpos: cV? coll... | cpos+cvc+cac: keep2... ] |
9646
5ebbe5ab084f
6939861: JVM should handle more conversion operations
jrose
parents:
8822
diff
changeset
|
595 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
596 |
// Now build a LambdaForm. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
597 |
MethodType lambdaType = srcType.invokerType(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
598 |
Name[] names = arguments(2, lambdaType); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
599 |
final int collectNamePos = names.length - 2; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
600 |
final int targetNamePos = names.length - 1; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
601 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
602 |
Name[] collectorArgs = Arrays.copyOfRange(names, 1 + collectArgPos, 1 + collectArgPos + collectArgCount); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
603 |
names[collectNamePos] = new Name(collector, (Object[]) collectorArgs); |
2707
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
604 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
605 |
// Build argument array for the target. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
606 |
// Incoming LF args to copy are: [ (mh) headArgs collectArgs tailArgs ]. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
607 |
// Output argument array is [ headArgs (collectVal)? (collectArgs)? tailArgs ]. |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
608 |
Name[] targetArgs = new Name[targetType.parameterCount()]; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
609 |
int inputArgPos = 1; // incoming LF args to copy to target |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
610 |
int targetArgPos = 0; // fill pointer for targetArgs |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
611 |
int chunk = collectArgPos; // |headArgs| |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
612 |
System.arraycopy(names, inputArgPos, targetArgs, targetArgPos, chunk); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
613 |
inputArgPos += chunk; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
614 |
targetArgPos += chunk; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
615 |
if (collectValType != void.class) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
616 |
targetArgs[targetArgPos++] = names[collectNamePos]; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
617 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
618 |
chunk = collectArgCount; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
619 |
if (retainOriginalArgs) { |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
620 |
System.arraycopy(names, inputArgPos, targetArgs, targetArgPos, chunk); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
621 |
targetArgPos += chunk; // optionally pass on the collected chunk |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
622 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
623 |
inputArgPos += chunk; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
624 |
chunk = targetArgs.length - targetArgPos; // all the rest |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
625 |
System.arraycopy(names, inputArgPos, targetArgs, targetArgPos, chunk); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
626 |
assert(inputArgPos + chunk == collectNamePos); // use of rest of input args also |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
627 |
names[targetNamePos] = new Name(target, (Object[]) targetArgs); |
2707
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
628 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
629 |
LambdaForm form = new LambdaForm("collect", lambdaType.parameterCount(), names); |
13610
28122b96858e
7191102: nightly failures after JSR 292 lazy method handle update (round 3)
jrose
parents:
13423
diff
changeset
|
630 |
return SimpleMethodHandle.make(srcType, form); |
4537 | 631 |
} |
632 |
||
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
633 |
@LambdaForm.Hidden |
8821
2836ee97ee27
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
8347
diff
changeset
|
634 |
static |
9730
e4b334d47f4b
7032850: MethodHandle.invokeGeneric throws unspecified RuntimeException if parameterized method is called
jrose
parents:
9646
diff
changeset
|
635 |
MethodHandle selectAlternative(boolean testResult, MethodHandle target, MethodHandle fallback) { |
e4b334d47f4b
7032850: MethodHandle.invokeGeneric throws unspecified RuntimeException if parameterized method is called
jrose
parents:
9646
diff
changeset
|
636 |
return testResult ? target : fallback; |
e4b334d47f4b
7032850: MethodHandle.invokeGeneric throws unspecified RuntimeException if parameterized method is called
jrose
parents:
9646
diff
changeset
|
637 |
} |
e4b334d47f4b
7032850: MethodHandle.invokeGeneric throws unspecified RuntimeException if parameterized method is called
jrose
parents:
9646
diff
changeset
|
638 |
|
e4b334d47f4b
7032850: MethodHandle.invokeGeneric throws unspecified RuntimeException if parameterized method is called
jrose
parents:
9646
diff
changeset
|
639 |
static |
8821
2836ee97ee27
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
8347
diff
changeset
|
640 |
MethodHandle makeGuardWithTest(MethodHandle test, |
4537 | 641 |
MethodHandle target, |
642 |
MethodHandle fallback) { |
|
26480
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
643 |
MethodType type = target.type(); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
644 |
assert(test.type().equals(type.changeReturnType(boolean.class)) && fallback.type().equals(type)); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
645 |
MethodType basicType = type.basicType(); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
646 |
LambdaForm form = makeGuardWithTestForm(basicType); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
647 |
BoundMethodHandle.SpeciesData data = BoundMethodHandle.speciesData_LLL(); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
648 |
BoundMethodHandle mh; |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
649 |
try { |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
650 |
mh = (BoundMethodHandle) |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
651 |
data.constructor().invokeBasic(type, form, |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
652 |
(Object) test, (Object) target, (Object) fallback); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
653 |
} catch (Throwable ex) { |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
654 |
throw uncaughtException(ex); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
655 |
} |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
656 |
assert(mh.type() == type); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
657 |
return mh; |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
658 |
} |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
659 |
|
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
660 |
static |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
661 |
LambdaForm makeGuardWithTestForm(MethodType basicType) { |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
662 |
LambdaForm lform = basicType.form().cachedLambdaForm(MethodTypeForm.LF_GWT); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
663 |
if (lform != null) return lform; |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
664 |
final int THIS_MH = 0; // the BMH_LLL |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
665 |
final int ARG_BASE = 1; // start of incoming arguments |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
666 |
final int ARG_LIMIT = ARG_BASE + basicType.parameterCount(); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
667 |
int nameCursor = ARG_LIMIT; |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
668 |
final int GET_TEST = nameCursor++; |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
669 |
final int GET_TARGET = nameCursor++; |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
670 |
final int GET_FALLBACK = nameCursor++; |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
671 |
final int CALL_TEST = nameCursor++; |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
672 |
final int SELECT_ALT = nameCursor++; |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
673 |
final int CALL_TARGET = nameCursor++; |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
674 |
assert(CALL_TARGET == SELECT_ALT+1); // must be true to trigger IBG.emitSelectAlternative |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
675 |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
676 |
MethodType lambdaType = basicType.invokerType(); |
26480
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
677 |
Name[] names = arguments(nameCursor - ARG_LIMIT, lambdaType); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
678 |
|
26480
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
679 |
BoundMethodHandle.SpeciesData data = BoundMethodHandle.speciesData_LLL(); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
680 |
names[THIS_MH] = names[THIS_MH].withConstraint(data); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
681 |
names[GET_TEST] = new Name(data.getterFunction(0), names[THIS_MH]); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
682 |
names[GET_TARGET] = new Name(data.getterFunction(1), names[THIS_MH]); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
683 |
names[GET_FALLBACK] = new Name(data.getterFunction(2), names[THIS_MH]); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
684 |
|
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
685 |
Object[] invokeArgs = Arrays.copyOfRange(names, 0, ARG_LIMIT, Object[].class); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
686 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
687 |
// call test |
26480
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
688 |
MethodType testType = basicType.changeReturnType(boolean.class).basicType(); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
689 |
invokeArgs[0] = names[GET_TEST]; |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
690 |
names[CALL_TEST] = new Name(testType, invokeArgs); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
691 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
692 |
// call selectAlternative |
26480
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
693 |
names[SELECT_ALT] = new Name(Lazy.MH_selectAlternative, names[CALL_TEST], |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
694 |
names[GET_TARGET], names[GET_FALLBACK]); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
695 |
|
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
696 |
// call target or fallback |
26480
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
697 |
invokeArgs[0] = names[SELECT_ALT]; |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
698 |
names[CALL_TARGET] = new Name(basicType, invokeArgs); |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
699 |
|
26480
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
700 |
lform = new LambdaForm("guard", lambdaType.parameterCount(), names); |
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
701 |
|
92d431f1ec8d
8056926: Improve caching of GuardWithTest combinator
vlivanov
parents:
26479
diff
changeset
|
702 |
return basicType.form().setCachedLambdaForm(MethodTypeForm.LF_GWT, lform); |
4537 | 703 |
} |
704 |
||
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
705 |
/** |
25979 | 706 |
* The LambdaForm shape for catchException combinator is the following: |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
707 |
* <blockquote><pre>{@code |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
708 |
* guardWithCatch=Lambda(a0:L,a1:L,a2:L)=>{ |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
709 |
* t3:L=BoundMethodHandle$Species_LLLLL.argL0(a0:L); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
710 |
* t4:L=BoundMethodHandle$Species_LLLLL.argL1(a0:L); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
711 |
* t5:L=BoundMethodHandle$Species_LLLLL.argL2(a0:L); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
712 |
* t6:L=BoundMethodHandle$Species_LLLLL.argL3(a0:L); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
713 |
* t7:L=BoundMethodHandle$Species_LLLLL.argL4(a0:L); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
714 |
* t8:L=MethodHandle.invokeBasic(t6:L,a1:L,a2:L); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
715 |
* t9:L=MethodHandleImpl.guardWithCatch(t3:L,t4:L,t5:L,t8:L); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
716 |
* t10:I=MethodHandle.invokeBasic(t7:L,t9:L);t10:I} |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
717 |
* }</pre></blockquote> |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
718 |
* |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
719 |
* argL0 and argL2 are target and catcher method handles. argL1 is exception class. |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
720 |
* argL3 and argL4 are auxiliary method handles: argL3 boxes arguments and wraps them into Object[] |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
721 |
* (ValueConversions.array()) and argL4 unboxes result if necessary (ValueConversions.unbox()). |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
722 |
* |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
723 |
* Having t8 and t10 passed outside and not hardcoded into a lambda form allows to share lambda forms |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
724 |
* among catchException combinators with the same basic type. |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
725 |
*/ |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
726 |
private static LambdaForm makeGuardWithCatchForm(MethodType basicType) { |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
727 |
MethodType lambdaType = basicType.invokerType(); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
728 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
729 |
LambdaForm lform = basicType.form().cachedLambdaForm(MethodTypeForm.LF_GWC); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
730 |
if (lform != null) { |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
731 |
return lform; |
4537 | 732 |
} |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
733 |
final int THIS_MH = 0; // the BMH_LLLLL |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
734 |
final int ARG_BASE = 1; // start of incoming arguments |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
735 |
final int ARG_LIMIT = ARG_BASE + basicType.parameterCount(); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
736 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
737 |
int nameCursor = ARG_LIMIT; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
738 |
final int GET_TARGET = nameCursor++; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
739 |
final int GET_CLASS = nameCursor++; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
740 |
final int GET_CATCHER = nameCursor++; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
741 |
final int GET_COLLECT_ARGS = nameCursor++; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
742 |
final int GET_UNBOX_RESULT = nameCursor++; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
743 |
final int BOXED_ARGS = nameCursor++; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
744 |
final int TRY_CATCH = nameCursor++; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
745 |
final int UNBOX_RESULT = nameCursor++; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
746 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
747 |
Name[] names = arguments(nameCursor - ARG_LIMIT, lambdaType); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
748 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
749 |
BoundMethodHandle.SpeciesData data = BoundMethodHandle.speciesData_LLLLL(); |
26479
a60a19ec5ce5
8057657: Annotate LambdaForm parameters with types
vlivanov
parents:
26476
diff
changeset
|
750 |
names[THIS_MH] = names[THIS_MH].withConstraint(data); |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
751 |
names[GET_TARGET] = new Name(data.getterFunction(0), names[THIS_MH]); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
752 |
names[GET_CLASS] = new Name(data.getterFunction(1), names[THIS_MH]); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
753 |
names[GET_CATCHER] = new Name(data.getterFunction(2), names[THIS_MH]); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
754 |
names[GET_COLLECT_ARGS] = new Name(data.getterFunction(3), names[THIS_MH]); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
755 |
names[GET_UNBOX_RESULT] = new Name(data.getterFunction(4), names[THIS_MH]); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
756 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
757 |
// FIXME: rework argument boxing/result unboxing logic for LF interpretation |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
758 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
759 |
// t_{i}:L=MethodHandle.invokeBasic(collectArgs:L,a1:L,...); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
760 |
MethodType collectArgsType = basicType.changeReturnType(Object.class); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
761 |
MethodHandle invokeBasic = MethodHandles.basicInvoker(collectArgsType); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
762 |
Object[] args = new Object[invokeBasic.type().parameterCount()]; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
763 |
args[0] = names[GET_COLLECT_ARGS]; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
764 |
System.arraycopy(names, ARG_BASE, args, 1, ARG_LIMIT-ARG_BASE); |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
765 |
names[BOXED_ARGS] = new Name(makeIntrinsic(invokeBasic, Intrinsic.GUARD_WITH_CATCH), args); |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
766 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
767 |
// t_{i+1}:L=MethodHandleImpl.guardWithCatch(target:L,exType:L,catcher:L,t_{i}:L); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
768 |
Object[] gwcArgs = new Object[] {names[GET_TARGET], names[GET_CLASS], names[GET_CATCHER], names[BOXED_ARGS]}; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
769 |
names[TRY_CATCH] = new Name(Lazy.NF_guardWithCatch, gwcArgs); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
770 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
771 |
// t_{i+2}:I=MethodHandle.invokeBasic(unbox:L,t_{i+1}:L); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
772 |
MethodHandle invokeBasicUnbox = MethodHandles.basicInvoker(MethodType.methodType(basicType.rtype(), Object.class)); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
773 |
Object[] unboxArgs = new Object[] {names[GET_UNBOX_RESULT], names[TRY_CATCH]}; |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
774 |
names[UNBOX_RESULT] = new Name(invokeBasicUnbox, unboxArgs); |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
775 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
776 |
lform = new LambdaForm("guardWithCatch", lambdaType.parameterCount(), names); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
777 |
|
24696
00479fa7c27f
8005873: JRuby test_respond_to.rb asserts with: MT-unsafe modification of inline cache
thartmann
parents:
24572
diff
changeset
|
778 |
return basicType.form().setCachedLambdaForm(MethodTypeForm.LF_GWC, lform); |
4537 | 779 |
} |
780 |
||
8821
2836ee97ee27
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
8347
diff
changeset
|
781 |
static |
2836ee97ee27
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
8347
diff
changeset
|
782 |
MethodHandle makeGuardWithCatch(MethodHandle target, |
4537 | 783 |
Class<? extends Throwable> exType, |
784 |
MethodHandle catcher) { |
|
785 |
MethodType type = target.type(); |
|
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
786 |
LambdaForm form = makeGuardWithCatchForm(type.basicType()); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
787 |
|
25979 | 788 |
// Prepare auxiliary method handles used during LambdaForm interpretation. |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
789 |
// Box arguments and wrap them into Object[]: ValueConversions.array(). |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
790 |
MethodType varargsType = type.changeReturnType(Object[].class); |
26466
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
791 |
MethodHandle collectArgs = varargsArray(type.parameterCount()).asType(varargsType); |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
792 |
// Result unboxing: ValueConversions.unbox() OR ValueConversions.identity() OR ValueConversions.ignore(). |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
793 |
MethodHandle unboxResult; |
26474
655d08549e43
8050877: Improve code for pairwise argument conversions and value boxing/unboxing
vlivanov
parents:
26473
diff
changeset
|
794 |
Class<?> rtype = type.returnType(); |
655d08549e43
8050877: Improve code for pairwise argument conversions and value boxing/unboxing
vlivanov
parents:
26473
diff
changeset
|
795 |
if (rtype.isPrimitive()) { |
655d08549e43
8050877: Improve code for pairwise argument conversions and value boxing/unboxing
vlivanov
parents:
26473
diff
changeset
|
796 |
if (rtype == void.class) { |
655d08549e43
8050877: Improve code for pairwise argument conversions and value boxing/unboxing
vlivanov
parents:
26473
diff
changeset
|
797 |
unboxResult = ValueConversions.ignore(); |
655d08549e43
8050877: Improve code for pairwise argument conversions and value boxing/unboxing
vlivanov
parents:
26473
diff
changeset
|
798 |
} else { |
655d08549e43
8050877: Improve code for pairwise argument conversions and value boxing/unboxing
vlivanov
parents:
26473
diff
changeset
|
799 |
Wrapper w = Wrapper.forPrimitiveType(type.returnType()); |
655d08549e43
8050877: Improve code for pairwise argument conversions and value boxing/unboxing
vlivanov
parents:
26473
diff
changeset
|
800 |
unboxResult = ValueConversions.unboxExact(w); |
655d08549e43
8050877: Improve code for pairwise argument conversions and value boxing/unboxing
vlivanov
parents:
26473
diff
changeset
|
801 |
} |
4537 | 802 |
} else { |
26474
655d08549e43
8050877: Improve code for pairwise argument conversions and value boxing/unboxing
vlivanov
parents:
26473
diff
changeset
|
803 |
unboxResult = MethodHandles.identity(Object.class); |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
804 |
} |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
805 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
806 |
BoundMethodHandle.SpeciesData data = BoundMethodHandle.speciesData_LLLLL(); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
807 |
BoundMethodHandle mh; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
808 |
try { |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
809 |
mh = (BoundMethodHandle) |
26467
d69abed3a07d
8050052: Small cleanups in java.lang.invoke code
vlivanov
parents:
26466
diff
changeset
|
810 |
data.constructor().invokeBasic(type, form, (Object) target, (Object) exType, (Object) catcher, |
d69abed3a07d
8050052: Small cleanups in java.lang.invoke code
vlivanov
parents:
26466
diff
changeset
|
811 |
(Object) collectArgs, (Object) unboxResult); |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
812 |
} catch (Throwable ex) { |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
813 |
throw uncaughtException(ex); |
4537 | 814 |
} |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
815 |
assert(mh.type() == type); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
816 |
return mh; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
817 |
} |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
818 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
819 |
/** |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
820 |
* Intrinsified during LambdaForm compilation |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
821 |
* (see {@link InvokerBytecodeGenerator#emitGuardWithCatch emitGuardWithCatch}). |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
822 |
*/ |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
823 |
@LambdaForm.Hidden |
23059
4aca6147df88
8036732: Fix raw warning in java.lang.invoke.MethodHandleImpl.java
darcy
parents:
23039
diff
changeset
|
824 |
static Object guardWithCatch(MethodHandle target, Class<? extends Throwable> exType, MethodHandle catcher, |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
825 |
Object... av) throws Throwable { |
23338
0a84d339822a
8036117: MethodHandles.catchException doesn't handle VarargsCollector right (8034120 failed)
vlivanov
parents:
23059
diff
changeset
|
826 |
// Use asFixedArity() to avoid unnecessary boxing of last argument for VarargsCollector case. |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
827 |
try { |
23338
0a84d339822a
8036117: MethodHandles.catchException doesn't handle VarargsCollector right (8034120 failed)
vlivanov
parents:
23059
diff
changeset
|
828 |
return target.asFixedArity().invokeWithArguments(av); |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
829 |
} catch (Throwable t) { |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
830 |
if (!exType.isInstance(t)) throw t; |
23338
0a84d339822a
8036117: MethodHandles.catchException doesn't handle VarargsCollector right (8034120 failed)
vlivanov
parents:
23059
diff
changeset
|
831 |
return catcher.asFixedArity().invokeWithArguments(prepend(t, av)); |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
832 |
} |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
833 |
} |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
834 |
|
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
835 |
/** Prepend an element {@code elem} to an {@code array}. */ |
23338
0a84d339822a
8036117: MethodHandles.catchException doesn't handle VarargsCollector right (8034120 failed)
vlivanov
parents:
23059
diff
changeset
|
836 |
@LambdaForm.Hidden |
23038
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
837 |
private static Object[] prepend(Object elem, Object[] array) { |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
838 |
Object[] newArray = new Object[array.length+1]; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
839 |
newArray[0] = elem; |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
840 |
System.arraycopy(array, 0, newArray, 1, array.length); |
bb8b3b23af3a
8027827: Improve performance of catchException combinator
vlivanov
parents:
21649
diff
changeset
|
841 |
return newArray; |
2707
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
842 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
843 |
|
8821
2836ee97ee27
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
8347
diff
changeset
|
844 |
static |
2836ee97ee27
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
8347
diff
changeset
|
845 |
MethodHandle throwException(MethodType type) { |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
846 |
assert(Throwable.class.isAssignableFrom(type.parameterType(0))); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
847 |
int arity = type.parameterCount(); |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
848 |
if (arity > 1) { |
26469
e6bc14fae1cf
8050166: Get rid of some package-private methods on arguments in j.l.i.MethodHandle
vlivanov
parents:
26467
diff
changeset
|
849 |
MethodHandle mh = throwException(type.dropParameterTypes(1, arity)); |
e6bc14fae1cf
8050166: Get rid of some package-private methods on arguments in j.l.i.MethodHandle
vlivanov
parents:
26467
diff
changeset
|
850 |
mh = MethodHandles.dropArguments(mh, 1, type.parameterList().subList(1, arity)); |
e6bc14fae1cf
8050166: Get rid of some package-private methods on arguments in j.l.i.MethodHandle
vlivanov
parents:
26467
diff
changeset
|
851 |
return mh; |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
852 |
} |
26474
655d08549e43
8050877: Improve code for pairwise argument conversions and value boxing/unboxing
vlivanov
parents:
26473
diff
changeset
|
853 |
return makePairwiseConvert(Lazy.NF_throwException.resolvedHandle(), type, false, true); |
2707
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
854 |
} |
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
855 |
|
4537 | 856 |
static <T extends Throwable> Empty throwException(T t) throws T { throw t; } |
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
857 |
|
19804 | 858 |
static MethodHandle[] FAKE_METHOD_HANDLE_INVOKE = new MethodHandle[2]; |
859 |
static MethodHandle fakeMethodHandleInvoke(MemberName method) { |
|
860 |
int idx; |
|
861 |
assert(method.isMethodHandleInvoke()); |
|
862 |
switch (method.getName()) { |
|
863 |
case "invoke": idx = 0; break; |
|
864 |
case "invokeExact": idx = 1; break; |
|
865 |
default: throw new InternalError(method.getName()); |
|
866 |
} |
|
867 |
MethodHandle mh = FAKE_METHOD_HANDLE_INVOKE[idx]; |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
868 |
if (mh != null) return mh; |
19804 | 869 |
MethodType type = MethodType.methodType(Object.class, UnsupportedOperationException.class, |
870 |
MethodHandle.class, Object[].class); |
|
871 |
mh = throwException(type); |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
872 |
mh = mh.bindTo(new UnsupportedOperationException("cannot reflectively invoke MethodHandle")); |
19804 | 873 |
if (!method.getInvocationType().equals(mh.type())) |
874 |
throw new InternalError(method.toString()); |
|
26471
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
875 |
mh = mh.withInternalMemberName(method, false); |
19804 | 876 |
mh = mh.asVarargsCollector(Object[].class); |
877 |
assert(method.isVarargs()); |
|
878 |
FAKE_METHOD_HANDLE_INVOKE[idx] = mh; |
|
13423
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
879 |
return mh; |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
880 |
} |
17843fff200d
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
13420
diff
changeset
|
881 |
|
14222 | 882 |
/** |
883 |
* Create an alias for the method handle which, when called, |
|
884 |
* appears to be called from the same class loader and protection domain |
|
885 |
* as hostClass. |
|
886 |
* This is an expensive no-op unless the method which is called |
|
887 |
* is sensitive to its caller. A small number of system methods |
|
888 |
* are in this category, including Class.forName and Method.invoke. |
|
889 |
*/ |
|
890 |
static |
|
891 |
MethodHandle bindCaller(MethodHandle mh, Class<?> hostClass) { |
|
892 |
return BindCaller.bindCaller(mh, hostClass); |
|
893 |
} |
|
894 |
||
895 |
// Put the whole mess into its own nested class. |
|
896 |
// That way we can lazily load the code and set up the constants. |
|
897 |
private static class BindCaller { |
|
898 |
static |
|
899 |
MethodHandle bindCaller(MethodHandle mh, Class<?> hostClass) { |
|
900 |
// Do not use this function to inject calls into system classes. |
|
16118 | 901 |
if (hostClass == null |
902 |
|| (hostClass.isArray() || |
|
14222 | 903 |
hostClass.isPrimitive() || |
904 |
hostClass.getName().startsWith("java.") || |
|
16118 | 905 |
hostClass.getName().startsWith("sun."))) { |
14222 | 906 |
throw new InternalError(); // does not happen, and should not anyway |
907 |
} |
|
908 |
// For simplicity, convert mh to a varargs-like method. |
|
909 |
MethodHandle vamh = prepareForInvoker(mh); |
|
910 |
// Cache the result of makeInjectedInvoker once per argument class. |
|
911 |
MethodHandle bccInvoker = CV_makeInjectedInvoker.get(hostClass); |
|
26471
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
912 |
return restoreToType(bccInvoker.bindTo(vamh), mh, hostClass); |
14222 | 913 |
} |
914 |
||
915 |
private static MethodHandle makeInjectedInvoker(Class<?> hostClass) { |
|
916 |
Class<?> bcc = UNSAFE.defineAnonymousClass(hostClass, T_BYTES, null); |
|
917 |
if (hostClass.getClassLoader() != bcc.getClassLoader()) |
|
918 |
throw new InternalError(hostClass.getName()+" (CL)"); |
|
919 |
try { |
|
920 |
if (hostClass.getProtectionDomain() != bcc.getProtectionDomain()) |
|
921 |
throw new InternalError(hostClass.getName()+" (PD)"); |
|
922 |
} catch (SecurityException ex) { |
|
923 |
// Self-check was blocked by security manager. This is OK. |
|
924 |
// In fact the whole try body could be turned into an assertion. |
|
925 |
} |
|
926 |
try { |
|
927 |
MethodHandle init = IMPL_LOOKUP.findStatic(bcc, "init", MethodType.methodType(void.class)); |
|
928 |
init.invokeExact(); // force initialization of the class |
|
929 |
} catch (Throwable ex) { |
|
930 |
throw uncaughtException(ex); |
|
931 |
} |
|
932 |
MethodHandle bccInvoker; |
|
933 |
try { |
|
934 |
MethodType invokerMT = MethodType.methodType(Object.class, MethodHandle.class, Object[].class); |
|
935 |
bccInvoker = IMPL_LOOKUP.findStatic(bcc, "invoke_V", invokerMT); |
|
936 |
} catch (ReflectiveOperationException ex) { |
|
937 |
throw uncaughtException(ex); |
|
938 |
} |
|
939 |
// Test the invoker, to ensure that it really injects into the right place. |
|
940 |
try { |
|
941 |
MethodHandle vamh = prepareForInvoker(MH_checkCallerClass); |
|
942 |
Object ok = bccInvoker.invokeExact(vamh, new Object[]{hostClass, bcc}); |
|
943 |
} catch (Throwable ex) { |
|
944 |
throw new InternalError(ex); |
|
945 |
} |
|
946 |
return bccInvoker; |
|
947 |
} |
|
948 |
private static ClassValue<MethodHandle> CV_makeInjectedInvoker = new ClassValue<MethodHandle>() { |
|
949 |
@Override protected MethodHandle computeValue(Class<?> hostClass) { |
|
950 |
return makeInjectedInvoker(hostClass); |
|
951 |
} |
|
952 |
}; |
|
953 |
||
954 |
// Adapt mh so that it can be called directly from an injected invoker: |
|
955 |
private static MethodHandle prepareForInvoker(MethodHandle mh) { |
|
956 |
mh = mh.asFixedArity(); |
|
957 |
MethodType mt = mh.type(); |
|
958 |
int arity = mt.parameterCount(); |
|
959 |
MethodHandle vamh = mh.asType(mt.generic()); |
|
960 |
vamh.internalForm().compileToBytecode(); // eliminate LFI stack frames |
|
961 |
vamh = vamh.asSpreader(Object[].class, arity); |
|
962 |
vamh.internalForm().compileToBytecode(); // eliminate LFI stack frames |
|
963 |
return vamh; |
|
964 |
} |
|
965 |
||
966 |
// Undo the adapter effect of prepareForInvoker: |
|
26471
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
967 |
private static MethodHandle restoreToType(MethodHandle vamh, |
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
968 |
MethodHandle original, |
20534
da86f7904e6d
8025112: JSR 292 spec updates for security manager and caller sensitivity
jrose
parents:
20530
diff
changeset
|
969 |
Class<?> hostClass) { |
26471
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
970 |
MethodType type = original.type(); |
19804 | 971 |
MethodHandle mh = vamh.asCollector(Object[].class, type.parameterCount()); |
26471
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
972 |
MemberName member = original.internalMemberName(); |
19804 | 973 |
mh = mh.asType(type); |
26471
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
974 |
mh = new WrappedMember(mh, type, member, original.isInvokeSpecial(), hostClass); |
19804 | 975 |
return mh; |
14222 | 976 |
} |
977 |
||
978 |
private static final MethodHandle MH_checkCallerClass; |
|
979 |
static { |
|
980 |
final Class<?> THIS_CLASS = BindCaller.class; |
|
981 |
assert(checkCallerClass(THIS_CLASS, THIS_CLASS)); |
|
982 |
try { |
|
983 |
MH_checkCallerClass = IMPL_LOOKUP |
|
984 |
.findStatic(THIS_CLASS, "checkCallerClass", |
|
985 |
MethodType.methodType(boolean.class, Class.class, Class.class)); |
|
986 |
assert((boolean) MH_checkCallerClass.invokeExact(THIS_CLASS, THIS_CLASS)); |
|
987 |
} catch (Throwable ex) { |
|
988 |
throw new InternalError(ex); |
|
989 |
} |
|
990 |
} |
|
991 |
||
16906
44dfee24cb71
8010117: Annotate jdk caller sensitive methods with @sun.reflect.CallerSensitive
mchung
parents:
16123
diff
changeset
|
992 |
@CallerSensitive |
14222 | 993 |
private static boolean checkCallerClass(Class<?> expected, Class<?> expected2) { |
16906
44dfee24cb71
8010117: Annotate jdk caller sensitive methods with @sun.reflect.CallerSensitive
mchung
parents:
16123
diff
changeset
|
994 |
// This method is called via MH_checkCallerClass and so it's |
44dfee24cb71
8010117: Annotate jdk caller sensitive methods with @sun.reflect.CallerSensitive
mchung
parents:
16123
diff
changeset
|
995 |
// correct to ask for the immediate caller here. |
44dfee24cb71
8010117: Annotate jdk caller sensitive methods with @sun.reflect.CallerSensitive
mchung
parents:
16123
diff
changeset
|
996 |
Class<?> actual = Reflection.getCallerClass(); |
14222 | 997 |
if (actual != expected && actual != expected2) |
998 |
throw new InternalError("found "+actual.getName()+", expected "+expected.getName() |
|
999 |
+(expected == expected2 ? "" : ", or else "+expected2.getName())); |
|
1000 |
return true; |
|
1001 |
} |
|
1002 |
||
1003 |
private static final byte[] T_BYTES; |
|
1004 |
static { |
|
1005 |
final Object[] values = {null}; |
|
1006 |
AccessController.doPrivileged(new PrivilegedAction<Void>() { |
|
1007 |
public Void run() { |
|
1008 |
try { |
|
1009 |
Class<T> tClass = T.class; |
|
1010 |
String tName = tClass.getName(); |
|
1011 |
String tResource = tName.substring(tName.lastIndexOf('.')+1)+".class"; |
|
1012 |
java.net.URLConnection uconn = tClass.getResource(tResource).openConnection(); |
|
1013 |
int len = uconn.getContentLength(); |
|
1014 |
byte[] bytes = new byte[len]; |
|
1015 |
try (java.io.InputStream str = uconn.getInputStream()) { |
|
1016 |
int nr = str.read(bytes); |
|
1017 |
if (nr != len) throw new java.io.IOException(tResource); |
|
1018 |
} |
|
1019 |
values[0] = bytes; |
|
1020 |
} catch (java.io.IOException ex) { |
|
1021 |
throw new InternalError(ex); |
|
1022 |
} |
|
1023 |
return null; |
|
1024 |
} |
|
1025 |
}); |
|
1026 |
T_BYTES = (byte[]) values[0]; |
|
1027 |
} |
|
1028 |
||
1029 |
// The following class is used as a template for Unsafe.defineAnonymousClass: |
|
1030 |
private static class T { |
|
1031 |
static void init() { } // side effect: initializes this class |
|
1032 |
static Object invoke_V(MethodHandle vamh, Object[] args) throws Throwable { |
|
1033 |
return vamh.invokeExact(args); |
|
1034 |
} |
|
1035 |
} |
|
1036 |
} |
|
19804 | 1037 |
|
1038 |
||
1039 |
/** This subclass allows a wrapped method handle to be re-associated with an arbitrary member name. */ |
|
26472
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
1040 |
private static final class WrappedMember extends DelegatingMethodHandle { |
19804 | 1041 |
private final MethodHandle target; |
1042 |
private final MemberName member; |
|
20534
da86f7904e6d
8025112: JSR 292 spec updates for security manager and caller sensitivity
jrose
parents:
20530
diff
changeset
|
1043 |
private final Class<?> callerClass; |
26471
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
1044 |
private final boolean isInvokeSpecial; |
19804 | 1045 |
|
26471
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
1046 |
private WrappedMember(MethodHandle target, MethodType type, |
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
1047 |
MemberName member, boolean isInvokeSpecial, |
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
1048 |
Class<?> callerClass) { |
26472
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
1049 |
super(type, target); |
19804 | 1050 |
this.target = target; |
1051 |
this.member = member; |
|
20534
da86f7904e6d
8025112: JSR 292 spec updates for security manager and caller sensitivity
jrose
parents:
20530
diff
changeset
|
1052 |
this.callerClass = callerClass; |
26471
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
1053 |
this.isInvokeSpecial = isInvokeSpecial; |
19804 | 1054 |
} |
1055 |
||
1056 |
@Override |
|
1057 |
MemberName internalMemberName() { |
|
1058 |
return member; |
|
1059 |
} |
|
1060 |
@Override |
|
20534
da86f7904e6d
8025112: JSR 292 spec updates for security manager and caller sensitivity
jrose
parents:
20530
diff
changeset
|
1061 |
Class<?> internalCallerClass() { |
da86f7904e6d
8025112: JSR 292 spec updates for security manager and caller sensitivity
jrose
parents:
20530
diff
changeset
|
1062 |
return callerClass; |
da86f7904e6d
8025112: JSR 292 spec updates for security manager and caller sensitivity
jrose
parents:
20530
diff
changeset
|
1063 |
} |
da86f7904e6d
8025112: JSR 292 spec updates for security manager and caller sensitivity
jrose
parents:
20530
diff
changeset
|
1064 |
@Override |
19804 | 1065 |
boolean isInvokeSpecial() { |
26471
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
1066 |
return isInvokeSpecial; |
19804 | 1067 |
} |
26472
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
1068 |
@Override |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
1069 |
protected MethodHandle getTarget() { |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
1070 |
return target; |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
1071 |
} |
19804 | 1072 |
@Override |
26472
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
1073 |
public MethodHandle asTypeUncached(MethodType newType) { |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
1074 |
// This MH is an alias for target, except for the MemberName |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
1075 |
// Drop the MemberName if there is any conversion. |
71b6a6f208c0
8050057: Improve caching of MethodHandle reinvokers
vlivanov
parents:
26471
diff
changeset
|
1076 |
return asTypeCache = target.asType(newType); |
19804 | 1077 |
} |
1078 |
} |
|
1079 |
||
26471
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
1080 |
static MethodHandle makeWrappedMember(MethodHandle target, MemberName member, boolean isInvokeSpecial) { |
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
1081 |
if (member.equals(target.internalMemberName()) && isInvokeSpecial == target.isInvokeSpecial()) |
19804 | 1082 |
return target; |
26471
1de6be0c6945
8050174: Support overriding of isInvokeSpecial flag in WrappedMember
vlivanov
parents:
26470
diff
changeset
|
1083 |
return new WrappedMember(target, target.type(), member, isInvokeSpecial, null); |
19804 | 1084 |
} |
1085 |
||
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1086 |
/** Intrinsic IDs */ |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1087 |
/*non-public*/ |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1088 |
enum Intrinsic { |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1089 |
SELECT_ALTERNATIVE, |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1090 |
GUARD_WITH_CATCH, |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1091 |
NEW_ARRAY, |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1092 |
ARRAY_LOAD, |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1093 |
ARRAY_STORE, |
26475
acf0c98309d3
8050884: Intrinsify ValueConversions.identity() functions
vlivanov
parents:
26474
diff
changeset
|
1094 |
IDENTITY, |
26476
2b814465aaa3
8050887: Intrinsify constants for default values
vlivanov
parents:
26475
diff
changeset
|
1095 |
ZERO, |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1096 |
NONE // no intrinsic associated |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1097 |
} |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1098 |
|
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1099 |
/** Mark arbitrary method handle as intrinsic. |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1100 |
* InvokerBytecodeGenerator uses this info to produce more efficient bytecode shape. */ |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1101 |
private static final class IntrinsicMethodHandle extends DelegatingMethodHandle { |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1102 |
private final MethodHandle target; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1103 |
private final Intrinsic intrinsicName; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1104 |
|
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1105 |
IntrinsicMethodHandle(MethodHandle target, Intrinsic intrinsicName) { |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1106 |
super(target.type(), target); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1107 |
this.target = target; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1108 |
this.intrinsicName = intrinsicName; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1109 |
} |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1110 |
|
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1111 |
@Override |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1112 |
protected MethodHandle getTarget() { |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1113 |
return target; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1114 |
} |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1115 |
|
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1116 |
@Override |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1117 |
Intrinsic intrinsicName() { |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1118 |
return intrinsicName; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1119 |
} |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1120 |
|
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1121 |
@Override |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1122 |
public MethodHandle asTypeUncached(MethodType newType) { |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1123 |
// This MH is an alias for target, except for the intrinsic name |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1124 |
// Drop the name if there is any conversion. |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1125 |
return asTypeCache = target.asType(newType); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1126 |
} |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1127 |
|
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1128 |
@Override |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1129 |
String internalProperties() { |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1130 |
return super.internalProperties() + |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1131 |
"\n& Intrinsic="+intrinsicName; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1132 |
} |
26475
acf0c98309d3
8050884: Intrinsify ValueConversions.identity() functions
vlivanov
parents:
26474
diff
changeset
|
1133 |
|
acf0c98309d3
8050884: Intrinsify ValueConversions.identity() functions
vlivanov
parents:
26474
diff
changeset
|
1134 |
@Override |
acf0c98309d3
8050884: Intrinsify ValueConversions.identity() functions
vlivanov
parents:
26474
diff
changeset
|
1135 |
public MethodHandle asCollector(Class<?> arrayType, int arrayLength) { |
acf0c98309d3
8050884: Intrinsify ValueConversions.identity() functions
vlivanov
parents:
26474
diff
changeset
|
1136 |
if (intrinsicName == Intrinsic.IDENTITY) { |
acf0c98309d3
8050884: Intrinsify ValueConversions.identity() functions
vlivanov
parents:
26474
diff
changeset
|
1137 |
MethodType resultType = type().asCollectorType(arrayType, arrayLength); |
acf0c98309d3
8050884: Intrinsify ValueConversions.identity() functions
vlivanov
parents:
26474
diff
changeset
|
1138 |
MethodHandle newArray = MethodHandleImpl.varargsArray(arrayType, arrayLength); |
acf0c98309d3
8050884: Intrinsify ValueConversions.identity() functions
vlivanov
parents:
26474
diff
changeset
|
1139 |
return newArray.asType(resultType); |
acf0c98309d3
8050884: Intrinsify ValueConversions.identity() functions
vlivanov
parents:
26474
diff
changeset
|
1140 |
} |
acf0c98309d3
8050884: Intrinsify ValueConversions.identity() functions
vlivanov
parents:
26474
diff
changeset
|
1141 |
return super.asCollector(arrayType, arrayLength); |
acf0c98309d3
8050884: Intrinsify ValueConversions.identity() functions
vlivanov
parents:
26474
diff
changeset
|
1142 |
} |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1143 |
} |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1144 |
|
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1145 |
static MethodHandle makeIntrinsic(MethodHandle target, Intrinsic intrinsicName) { |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1146 |
if (intrinsicName == target.intrinsicName()) |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1147 |
return target; |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1148 |
return new IntrinsicMethodHandle(target, intrinsicName); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1149 |
} |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1150 |
|
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1151 |
static MethodHandle makeIntrinsic(MethodType type, LambdaForm form, Intrinsic intrinsicName) { |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1152 |
return new IntrinsicMethodHandle(SimpleMethodHandle.make(type, form), intrinsicName); |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1153 |
} |
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1154 |
|
26466
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1155 |
/// Collection of multiple arguments. |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1156 |
|
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1157 |
private static MethodHandle findCollector(String name, int nargs, Class<?> rtype, Class<?>... ptypes) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1158 |
MethodType type = MethodType.genericMethodType(nargs) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1159 |
.changeReturnType(rtype) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1160 |
.insertParameterTypes(0, ptypes); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1161 |
try { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1162 |
return IMPL_LOOKUP.findStatic(MethodHandleImpl.class, name, type); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1163 |
} catch (ReflectiveOperationException ex) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1164 |
return null; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1165 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1166 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1167 |
|
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1168 |
private static final Object[] NO_ARGS_ARRAY = {}; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1169 |
private static Object[] makeArray(Object... args) { return args; } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1170 |
private static Object[] array() { return NO_ARGS_ARRAY; } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1171 |
private static Object[] array(Object a0) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1172 |
{ return makeArray(a0); } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1173 |
private static Object[] array(Object a0, Object a1) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1174 |
{ return makeArray(a0, a1); } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1175 |
private static Object[] array(Object a0, Object a1, Object a2) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1176 |
{ return makeArray(a0, a1, a2); } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1177 |
private static Object[] array(Object a0, Object a1, Object a2, Object a3) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1178 |
{ return makeArray(a0, a1, a2, a3); } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1179 |
private static Object[] array(Object a0, Object a1, Object a2, Object a3, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1180 |
Object a4) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1181 |
{ return makeArray(a0, a1, a2, a3, a4); } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1182 |
private static Object[] array(Object a0, Object a1, Object a2, Object a3, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1183 |
Object a4, Object a5) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1184 |
{ return makeArray(a0, a1, a2, a3, a4, a5); } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1185 |
private static Object[] array(Object a0, Object a1, Object a2, Object a3, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1186 |
Object a4, Object a5, Object a6) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1187 |
{ return makeArray(a0, a1, a2, a3, a4, a5, a6); } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1188 |
private static Object[] array(Object a0, Object a1, Object a2, Object a3, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1189 |
Object a4, Object a5, Object a6, Object a7) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1190 |
{ return makeArray(a0, a1, a2, a3, a4, a5, a6, a7); } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1191 |
private static Object[] array(Object a0, Object a1, Object a2, Object a3, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1192 |
Object a4, Object a5, Object a6, Object a7, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1193 |
Object a8) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1194 |
{ return makeArray(a0, a1, a2, a3, a4, a5, a6, a7, a8); } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1195 |
private static Object[] array(Object a0, Object a1, Object a2, Object a3, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1196 |
Object a4, Object a5, Object a6, Object a7, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1197 |
Object a8, Object a9) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1198 |
{ return makeArray(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9); } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1199 |
private static MethodHandle[] makeArrays() { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1200 |
ArrayList<MethodHandle> mhs = new ArrayList<>(); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1201 |
for (;;) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1202 |
MethodHandle mh = findCollector("array", mhs.size(), Object[].class); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1203 |
if (mh == null) break; |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1204 |
mh = makeIntrinsic(mh, Intrinsic.NEW_ARRAY); |
26466
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1205 |
mhs.add(mh); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1206 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1207 |
assert(mhs.size() == 11); // current number of methods |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1208 |
return mhs.toArray(new MethodHandle[MAX_ARITY+1]); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1209 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1210 |
private static final MethodHandle[] ARRAYS = makeArrays(); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1211 |
|
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1212 |
// filling versions of the above: |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1213 |
// using Integer len instead of int len and no varargs to avoid bootstrapping problems |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1214 |
private static Object[] fillNewArray(Integer len, Object[] /*not ...*/ args) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1215 |
Object[] a = new Object[len]; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1216 |
fillWithArguments(a, 0, args); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1217 |
return a; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1218 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1219 |
private static Object[] fillNewTypedArray(Object[] example, Integer len, Object[] /*not ...*/ args) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1220 |
Object[] a = Arrays.copyOf(example, len); |
26467
d69abed3a07d
8050052: Small cleanups in java.lang.invoke code
vlivanov
parents:
26466
diff
changeset
|
1221 |
assert(a.getClass() != Object[].class); |
26466
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1222 |
fillWithArguments(a, 0, args); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1223 |
return a; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1224 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1225 |
private static void fillWithArguments(Object[] a, int pos, Object... args) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1226 |
System.arraycopy(args, 0, a, pos, args.length); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1227 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1228 |
// using Integer pos instead of int pos to avoid bootstrapping problems |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1229 |
private static Object[] fillArray(Integer pos, Object[] a, Object a0) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1230 |
{ fillWithArguments(a, pos, a0); return a; } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1231 |
private static Object[] fillArray(Integer pos, Object[] a, Object a0, Object a1) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1232 |
{ fillWithArguments(a, pos, a0, a1); return a; } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1233 |
private static Object[] fillArray(Integer pos, Object[] a, Object a0, Object a1, Object a2) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1234 |
{ fillWithArguments(a, pos, a0, a1, a2); return a; } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1235 |
private static Object[] fillArray(Integer pos, Object[] a, Object a0, Object a1, Object a2, Object a3) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1236 |
{ fillWithArguments(a, pos, a0, a1, a2, a3); return a; } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1237 |
private static Object[] fillArray(Integer pos, Object[] a, Object a0, Object a1, Object a2, Object a3, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1238 |
Object a4) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1239 |
{ fillWithArguments(a, pos, a0, a1, a2, a3, a4); return a; } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1240 |
private static Object[] fillArray(Integer pos, Object[] a, Object a0, Object a1, Object a2, Object a3, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1241 |
Object a4, Object a5) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1242 |
{ fillWithArguments(a, pos, a0, a1, a2, a3, a4, a5); return a; } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1243 |
private static Object[] fillArray(Integer pos, Object[] a, Object a0, Object a1, Object a2, Object a3, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1244 |
Object a4, Object a5, Object a6) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1245 |
{ fillWithArguments(a, pos, a0, a1, a2, a3, a4, a5, a6); return a; } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1246 |
private static Object[] fillArray(Integer pos, Object[] a, Object a0, Object a1, Object a2, Object a3, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1247 |
Object a4, Object a5, Object a6, Object a7) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1248 |
{ fillWithArguments(a, pos, a0, a1, a2, a3, a4, a5, a6, a7); return a; } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1249 |
private static Object[] fillArray(Integer pos, Object[] a, Object a0, Object a1, Object a2, Object a3, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1250 |
Object a4, Object a5, Object a6, Object a7, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1251 |
Object a8) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1252 |
{ fillWithArguments(a, pos, a0, a1, a2, a3, a4, a5, a6, a7, a8); return a; } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1253 |
private static Object[] fillArray(Integer pos, Object[] a, Object a0, Object a1, Object a2, Object a3, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1254 |
Object a4, Object a5, Object a6, Object a7, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1255 |
Object a8, Object a9) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1256 |
{ fillWithArguments(a, pos, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9); return a; } |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1257 |
private static MethodHandle[] makeFillArrays() { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1258 |
ArrayList<MethodHandle> mhs = new ArrayList<>(); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1259 |
mhs.add(null); // there is no empty fill; at least a0 is required |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1260 |
for (;;) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1261 |
MethodHandle mh = findCollector("fillArray", mhs.size(), Object[].class, Integer.class, Object[].class); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1262 |
if (mh == null) break; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1263 |
mhs.add(mh); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1264 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1265 |
assert(mhs.size() == 11); // current number of methods |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1266 |
return mhs.toArray(new MethodHandle[0]); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1267 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1268 |
private static final MethodHandle[] FILL_ARRAYS = makeFillArrays(); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1269 |
|
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1270 |
private static Object copyAsPrimitiveArray(Wrapper w, Object... boxes) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1271 |
Object a = w.makeArray(boxes.length); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1272 |
w.copyArrayUnboxing(boxes, 0, a, 0, boxes.length); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1273 |
return a; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1274 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1275 |
|
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1276 |
/** Return a method handle that takes the indicated number of Object |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1277 |
* arguments and returns an Object array of them, as if for varargs. |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1278 |
*/ |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1279 |
static MethodHandle varargsArray(int nargs) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1280 |
MethodHandle mh = ARRAYS[nargs]; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1281 |
if (mh != null) return mh; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1282 |
mh = findCollector("array", nargs, Object[].class); |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1283 |
if (mh != null) mh = makeIntrinsic(mh, Intrinsic.NEW_ARRAY); |
26466
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1284 |
if (mh != null) return ARRAYS[nargs] = mh; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1285 |
mh = buildVarargsArray(Lazy.MH_fillNewArray, Lazy.MH_arrayIdentity, nargs); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1286 |
assert(assertCorrectArity(mh, nargs)); |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1287 |
mh = makeIntrinsic(mh, Intrinsic.NEW_ARRAY); |
26466
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1288 |
return ARRAYS[nargs] = mh; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1289 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1290 |
|
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1291 |
private static boolean assertCorrectArity(MethodHandle mh, int arity) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1292 |
assert(mh.type().parameterCount() == arity) : "arity != "+arity+": "+mh; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1293 |
return true; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1294 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1295 |
|
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1296 |
// Array identity function (used as Lazy.MH_arrayIdentity). |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1297 |
static <T> T[] identity(T[] x) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1298 |
return x; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1299 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1300 |
|
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1301 |
private static MethodHandle buildVarargsArray(MethodHandle newArray, MethodHandle finisher, int nargs) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1302 |
// Build up the result mh as a sequence of fills like this: |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1303 |
// finisher(fill(fill(newArrayWA(23,x1..x10),10,x11..x20),20,x21..x23)) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1304 |
// The various fill(_,10*I,___*[J]) are reusable. |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1305 |
int leftLen = Math.min(nargs, LEFT_ARGS); // absorb some arguments immediately |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1306 |
int rightLen = nargs - leftLen; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1307 |
MethodHandle leftCollector = newArray.bindTo(nargs); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1308 |
leftCollector = leftCollector.asCollector(Object[].class, leftLen); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1309 |
MethodHandle mh = finisher; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1310 |
if (rightLen > 0) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1311 |
MethodHandle rightFiller = fillToRight(LEFT_ARGS + rightLen); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1312 |
if (mh == Lazy.MH_arrayIdentity) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1313 |
mh = rightFiller; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1314 |
else |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1315 |
mh = MethodHandles.collectArguments(mh, 0, rightFiller); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1316 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1317 |
if (mh == Lazy.MH_arrayIdentity) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1318 |
mh = leftCollector; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1319 |
else |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1320 |
mh = MethodHandles.collectArguments(mh, 0, leftCollector); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1321 |
return mh; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1322 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1323 |
|
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1324 |
private static final int LEFT_ARGS = (FILL_ARRAYS.length - 1); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1325 |
private static final MethodHandle[] FILL_ARRAY_TO_RIGHT = new MethodHandle[MAX_ARITY+1]; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1326 |
/** fill_array_to_right(N).invoke(a, argL..arg[N-1]) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1327 |
* fills a[L]..a[N-1] with corresponding arguments, |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1328 |
* and then returns a. The value L is a global constant (LEFT_ARGS). |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1329 |
*/ |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1330 |
private static MethodHandle fillToRight(int nargs) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1331 |
MethodHandle filler = FILL_ARRAY_TO_RIGHT[nargs]; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1332 |
if (filler != null) return filler; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1333 |
filler = buildFiller(nargs); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1334 |
assert(assertCorrectArity(filler, nargs - LEFT_ARGS + 1)); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1335 |
return FILL_ARRAY_TO_RIGHT[nargs] = filler; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1336 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1337 |
private static MethodHandle buildFiller(int nargs) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1338 |
if (nargs <= LEFT_ARGS) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1339 |
return Lazy.MH_arrayIdentity; // no args to fill; return the array unchanged |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1340 |
// we need room for both mh and a in mh.invoke(a, arg*[nargs]) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1341 |
final int CHUNK = LEFT_ARGS; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1342 |
int rightLen = nargs % CHUNK; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1343 |
int midLen = nargs - rightLen; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1344 |
if (rightLen == 0) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1345 |
midLen = nargs - (rightLen = CHUNK); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1346 |
if (FILL_ARRAY_TO_RIGHT[midLen] == null) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1347 |
// build some precursors from left to right |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1348 |
for (int j = LEFT_ARGS % CHUNK; j < midLen; j += CHUNK) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1349 |
if (j > LEFT_ARGS) fillToRight(j); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1350 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1351 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1352 |
if (midLen < LEFT_ARGS) rightLen = nargs - (midLen = LEFT_ARGS); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1353 |
assert(rightLen > 0); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1354 |
MethodHandle midFill = fillToRight(midLen); // recursive fill |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1355 |
MethodHandle rightFill = FILL_ARRAYS[rightLen].bindTo(midLen); // [midLen..nargs-1] |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1356 |
assert(midFill.type().parameterCount() == 1 + midLen - LEFT_ARGS); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1357 |
assert(rightFill.type().parameterCount() == 1 + rightLen); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1358 |
|
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1359 |
// Combine the two fills: |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1360 |
// right(mid(a, x10..x19), x20..x23) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1361 |
// The final product will look like this: |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1362 |
// right(mid(newArrayLeft(24, x0..x9), x10..x19), x20..x23) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1363 |
if (midLen == LEFT_ARGS) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1364 |
return rightFill; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1365 |
else |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1366 |
return MethodHandles.collectArguments(rightFill, 0, midFill); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1367 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1368 |
|
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1369 |
// Type-polymorphic version of varargs maker. |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1370 |
private static final ClassValue<MethodHandle[]> TYPED_COLLECTORS |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1371 |
= new ClassValue<MethodHandle[]>() { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1372 |
@Override |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1373 |
protected MethodHandle[] computeValue(Class<?> type) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1374 |
return new MethodHandle[256]; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1375 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1376 |
}; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1377 |
|
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1378 |
static final int MAX_JVM_ARITY = 255; // limit imposed by the JVM |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1379 |
|
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1380 |
/** Return a method handle that takes the indicated number of |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1381 |
* typed arguments and returns an array of them. |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1382 |
* The type argument is the array type. |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1383 |
*/ |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1384 |
static MethodHandle varargsArray(Class<?> arrayType, int nargs) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1385 |
Class<?> elemType = arrayType.getComponentType(); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1386 |
if (elemType == null) throw new IllegalArgumentException("not an array: "+arrayType); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1387 |
// FIXME: Need more special casing and caching here. |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1388 |
if (nargs >= MAX_JVM_ARITY/2 - 1) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1389 |
int slots = nargs; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1390 |
final int MAX_ARRAY_SLOTS = MAX_JVM_ARITY - 1; // 1 for receiver MH |
26467
d69abed3a07d
8050052: Small cleanups in java.lang.invoke code
vlivanov
parents:
26466
diff
changeset
|
1391 |
if (slots <= MAX_ARRAY_SLOTS && elemType.isPrimitive()) |
d69abed3a07d
8050052: Small cleanups in java.lang.invoke code
vlivanov
parents:
26466
diff
changeset
|
1392 |
slots *= Wrapper.forPrimitiveType(elemType).stackSlots(); |
26466
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1393 |
if (slots > MAX_ARRAY_SLOTS) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1394 |
throw new IllegalArgumentException("too many arguments: "+arrayType.getSimpleName()+", length "+nargs); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1395 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1396 |
if (elemType == Object.class) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1397 |
return varargsArray(nargs); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1398 |
// other cases: primitive arrays, subtypes of Object[] |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1399 |
MethodHandle cache[] = TYPED_COLLECTORS.get(elemType); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1400 |
MethodHandle mh = nargs < cache.length ? cache[nargs] : null; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1401 |
if (mh != null) return mh; |
26467
d69abed3a07d
8050052: Small cleanups in java.lang.invoke code
vlivanov
parents:
26466
diff
changeset
|
1402 |
if (nargs == 0) { |
d69abed3a07d
8050052: Small cleanups in java.lang.invoke code
vlivanov
parents:
26466
diff
changeset
|
1403 |
Object example = java.lang.reflect.Array.newInstance(arrayType.getComponentType(), 0); |
d69abed3a07d
8050052: Small cleanups in java.lang.invoke code
vlivanov
parents:
26466
diff
changeset
|
1404 |
mh = MethodHandles.constant(arrayType, example); |
d69abed3a07d
8050052: Small cleanups in java.lang.invoke code
vlivanov
parents:
26466
diff
changeset
|
1405 |
} else if (elemType.isPrimitive()) { |
26466
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1406 |
MethodHandle builder = Lazy.MH_fillNewArray; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1407 |
MethodHandle producer = buildArrayProducer(arrayType); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1408 |
mh = buildVarargsArray(builder, producer, nargs); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1409 |
} else { |
26467
d69abed3a07d
8050052: Small cleanups in java.lang.invoke code
vlivanov
parents:
26466
diff
changeset
|
1410 |
Class<? extends Object[]> objArrayType = arrayType.asSubclass(Object[].class); |
26466
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1411 |
Object[] example = Arrays.copyOf(NO_ARGS_ARRAY, 0, objArrayType); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1412 |
MethodHandle builder = Lazy.MH_fillNewTypedArray.bindTo(example); |
26467
d69abed3a07d
8050052: Small cleanups in java.lang.invoke code
vlivanov
parents:
26466
diff
changeset
|
1413 |
MethodHandle producer = Lazy.MH_arrayIdentity; // must be weakly typed |
26466
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1414 |
mh = buildVarargsArray(builder, producer, nargs); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1415 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1416 |
mh = mh.asType(MethodType.methodType(arrayType, Collections.<Class<?>>nCopies(nargs, elemType))); |
26473
0abc9399a1a6
8050200: Make LambdaForm intrinsics detection more robust
vlivanov
parents:
26472
diff
changeset
|
1417 |
mh = makeIntrinsic(mh, Intrinsic.NEW_ARRAY); |
26466
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1418 |
assert(assertCorrectArity(mh, nargs)); |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1419 |
if (nargs < cache.length) |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1420 |
cache[nargs] = mh; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1421 |
return mh; |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1422 |
} |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1423 |
|
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1424 |
private static MethodHandle buildArrayProducer(Class<?> arrayType) { |
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1425 |
Class<?> elemType = arrayType.getComponentType(); |
26467
d69abed3a07d
8050052: Small cleanups in java.lang.invoke code
vlivanov
parents:
26466
diff
changeset
|
1426 |
assert(elemType.isPrimitive()); |
d69abed3a07d
8050052: Small cleanups in java.lang.invoke code
vlivanov
parents:
26466
diff
changeset
|
1427 |
return Lazy.MH_copyAsPrimitiveArray.bindTo(Wrapper.forPrimitiveType(elemType)); |
26466
3bbb6a284bd4
8049555: Move varargsArray from sun.invoke.util package to java.lang.invoke
vlivanov
parents:
26465
diff
changeset
|
1428 |
} |
2707
5a17df307cbc
6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff
changeset
|
1429 |
} |