author | vlivanov |
Tue, 26 Nov 2019 16:09:17 +0300 | |
changeset 59275 | a6e25566cb56 |
parent 47216 | 71c04702a3d5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2011, 2012, 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. |
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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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|
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/** |
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* @test |
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* @summary smoke tests for CallSite |
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* @library /test/lib |
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* |
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* @build indify.Indify |
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* @compile CallSiteTest.java |
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* @run main/othervm/timeout=3600 -XX:+IgnoreUnrecognizedVMOptions -XX:-VerifyDependencies -Xbatch |
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* indify.Indify |
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* --expand-properties --classpath ${test.classes} |
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* --java test.java.lang.invoke.CallSiteTest |
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*/ |
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|
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package test.java.lang.invoke; |
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import java.io.*; |
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import java.lang.invoke.*; |
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import static java.lang.invoke.MethodHandles.*; |
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import static java.lang.invoke.MethodType.*; |
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import static jdk.test.lib.Asserts.*; |
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public class CallSiteTest { |
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private static final Class<?> CLASS = CallSiteTest.class; |
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|
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private static CallSite mcs; |
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private static CallSite vcs; |
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private static MethodHandle mh_foo; |
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private static MethodHandle mh_bar; |
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|
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static { |
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try { |
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mh_foo = lookup().findStatic(CLASS, "foo", methodType(int.class, int.class, int.class)); |
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mh_bar = lookup().findStatic(CLASS, "bar", methodType(int.class, int.class, int.class)); |
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mcs = new MutableCallSite(mh_foo); |
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vcs = new VolatileCallSite(mh_foo); |
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} catch (Exception e) { |
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e.printStackTrace(); |
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throw new Error(e); |
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} |
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} |
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|
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public static void main(String... av) throws Throwable { |
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testConstantCallSite(); |
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testMutableCallSite(); |
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testVolatileCallSite(); |
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} |
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private static final int N = Integer.MAX_VALUE / 100; |
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private static final int RESULT1 = 762786192; |
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private static final int RESULT2 = -21474836; |
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static final CallSite MCS = new MutableCallSite(methodType(void.class)); |
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static final MethodHandle MCS_INVOKER = MCS.dynamicInvoker(); |
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static void test(boolean shouldThrow) { |
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try { |
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MCS_INVOKER.invokeExact(); |
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if (shouldThrow) { |
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throw new AssertionError("should throw"); |
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} |
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} catch (IllegalStateException ise) { |
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if (!shouldThrow) { |
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throw new AssertionError("should not throw", ise); |
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} |
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} catch (Throwable e) { |
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throw new Error(e); |
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} |
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} |
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static class MyCCS extends ConstantCallSite { |
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public MyCCS(MethodType targetType, MethodHandle createTargetHook) throws Throwable { |
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super(targetType, createTargetHook); |
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} |
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} |
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private static MethodHandle testConstantCallSiteHandler(CallSite cs, CallSite[] holder) throws Throwable { |
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holder[0] = cs; // capture call site instance for subsequent checks |
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|
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MethodType csType = cs.type(); // should not throw on partially constructed instance |
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|
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// Truly dynamic invoker for constant call site |
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MethodHandle getTarget = lookup().findVirtual(CallSite.class, "getTarget", MethodType.methodType(MethodHandle.class)) |
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.bindTo(cs); |
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MethodHandle invoker = MethodHandles.exactInvoker(csType); |
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MethodHandle target = MethodHandles.foldArguments(invoker, getTarget); |
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|
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MCS.setTarget(target); |
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// warmup |
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for (int i = 0; i < 20_000; i++) { |
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test(true); // should throw IllegalStateException |
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} |
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|
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return MethodHandles.empty(csType); // initialize cs with an empty method handle |
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} |
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private static void testConstantCallSite() throws Throwable { |
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CallSite[] holder = new CallSite[1]; |
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MethodHandle handler = lookup().findStatic(CLASS, "testConstantCallSiteHandler", MethodType.methodType(MethodHandle.class, CallSite.class, CallSite[].class)); |
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handler = MethodHandles.insertArguments(handler, 1, new Object[] { holder } ); |
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|
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CallSite ccs = new MyCCS(MCS.type(), handler); // trigger call to handler |
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|
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if (ccs != holder[0]) { |
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throw new AssertionError("different call site instances"); |
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} |
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test(false); // should not throw |
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} |
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||
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private static void testMutableCallSite() throws Throwable { |
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// warm-up |
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for (int i = 0; i < 20000; i++) { |
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mcs.setTarget(mh_foo); |
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} |
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// run |
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for (int n = 0; n < 2; n++) { |
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mcs.setTarget(mh_foo); |
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for (int i = 0; i < 5; i++) { |
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assertEQ(RESULT1, runMutableCallSite()); |
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} |
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mcs.setTarget(mh_bar); |
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for (int i = 0; i < 5; i++) { |
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assertEQ(RESULT2, runMutableCallSite()); |
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} |
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} |
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} |
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private static void testVolatileCallSite() throws Throwable { |
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// warm-up |
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for (int i = 0; i < 20000; i++) { |
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vcs.setTarget(mh_foo); |
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} |
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// run |
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for (int n = 0; n < 2; n++) { |
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vcs.setTarget(mh_foo); |
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for (int i = 0; i < 5; i++) { |
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assertEQ(RESULT1, runVolatileCallSite()); |
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} |
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vcs.setTarget(mh_bar); |
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for (int i = 0; i < 5; i++) { |
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assertEQ(RESULT2, runVolatileCallSite()); |
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} |
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} |
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} |
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|
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private static int runMutableCallSite() throws Throwable { |
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int sum = 0; |
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for (int i = 0; i < N; i++) { |
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sum += (int) INDY_mcs().invokeExact(i, i+1); |
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} |
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return sum; |
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} |
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private static int runVolatileCallSite() throws Throwable { |
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int sum = 0; |
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for (int i = 0; i < N; i++) { |
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sum += (int) INDY_vcs().invokeExact(i, i+1); |
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} |
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return sum; |
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} |
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|
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static int foo(int a, int b) { return a + b; } |
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static int bar(int a, int b) { return a - b; } |
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|
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private static MethodType MT_bsm() { |
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shouldNotCallThis(); |
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return methodType(CallSite.class, Lookup.class, String.class, MethodType.class); |
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} |
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|
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private static CallSite bsm_mcs(Lookup caller, String name, MethodType type) throws ReflectiveOperationException { |
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return mcs; |
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} |
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private static MethodHandle MH_bsm_mcs() throws ReflectiveOperationException { |
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shouldNotCallThis(); |
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return lookup().findStatic(lookup().lookupClass(), "bsm_mcs", MT_bsm()); |
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} |
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private static MethodHandle INDY_mcs() throws Throwable { |
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shouldNotCallThis(); |
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return ((CallSite) MH_bsm_mcs().invoke(lookup(), "foo", methodType(int.class, int.class, int.class))).dynamicInvoker(); |
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} |
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|
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private static CallSite bsm_vcs(Lookup caller, String name, MethodType type) throws ReflectiveOperationException { |
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return vcs; |
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} |
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private static MethodHandle MH_bsm_vcs() throws ReflectiveOperationException { |
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shouldNotCallThis(); |
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return lookup().findStatic(lookup().lookupClass(), "bsm_vcs", MT_bsm()); |
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} |
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private static MethodHandle INDY_vcs() throws Throwable { |
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shouldNotCallThis(); |
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return ((CallSite) MH_bsm_vcs().invoke(lookup(), "foo", methodType(int.class, int.class, int.class))).dynamicInvoker(); |
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} |
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|
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private static void shouldNotCallThis() { |
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// if this gets called, the transformation has not taken place |
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throw new AssertionError("this code should be statically transformed away by Indify"); |
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} |
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} |