author | jrose |
Wed, 01 Jun 2011 23:56:47 -0700 | |
changeset 9780 | 6fc3b49cfee4 |
parent 9752 | 88ab34b6da6d |
child 11007 | 09d3dddac781 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2010, 2011, 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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/* @test |
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* @summary smoke test for invokedynamic instructions |
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* @build indify.Indify |
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* @compile InvokeDynamicPrintArgs.java |
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* @run main/othervm |
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* indify.Indify |
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* --verify-specifier-count=3 |
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* --expand-properties --classpath ${test.classes} |
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* --java test.java.lang.invoke.InvokeDynamicPrintArgs --check-output |
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* @run main/othervm |
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* indify.Indify |
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* --expand-properties --classpath ${test.classes} |
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* --java test.java.lang.invoke.InvokeDynamicPrintArgs --security-manager |
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*/ |
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package test.java.lang.invoke; |
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import org.junit.Test; |
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import java.util.*; |
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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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public class InvokeDynamicPrintArgs { |
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public static void main(String... av) throws Throwable { |
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if (av.length > 0 && av[0].equals("--check-output")) openBuf(); |
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if (av.length > 0 && av[0].equals("--security-manager")) setSM(); |
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System.out.println("Printing some argument lists, starting with a empty one:"); |
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INDY_nothing().invokeExact(); // BSM specifier #0 = {bsm} |
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INDY_bar().invokeExact("bar arg", 1); // BSM specifier #1 = {bsm2, Void.class, "void type"} |
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INDY_bar2().invokeExact("bar2 arg", 222); // BSM specifier #1 = (same) |
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INDY_baz().invokeExact("baz arg", 2, 3.14); // BSM specifier #2 = {bsm2, 1234.5} |
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INDY_foo().invokeExact("foo arg"); // BSM specifier #0 = (same) |
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// Hence, BSM specifier count should be 3. See "--verify-specifier-count=3" above. |
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System.out.println("Done printing argument lists."); |
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closeBuf(); |
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checkConstantRefs(); |
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} |
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private static void checkConstantRefs() throws Throwable { |
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// check some constant references: |
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assertEquals(MT_bsm(), MH_bsm().type()); |
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assertEquals(MT_bsm2(), MH_bsm2().type()); |
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try { |
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assertEquals(MT_bsm(), non_MH_bsm().type()); |
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// if SM is installed, must throw before this point |
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assertEquals(false, System.getSecurityManager() != null); |
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} catch (SecurityException ex) { |
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// if SM is installed, must throw to this point |
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assertEquals(true, System.getSecurityManager() != null); |
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} |
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} |
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private static void assertEquals(Object exp, Object act) { |
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if (exp == act || (exp != null && exp.equals(act))) return; |
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throw new AssertionError("not equal: "+exp+", "+act); |
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} |
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private static void setSM() { |
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// Test for severe security manager interactions (7050328). |
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class SM extends SecurityManager { |
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public void checkPackageAccess(String pkg) { |
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if (pkg.startsWith("test.")) |
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throw new SecurityException("checkPackageAccess "+pkg); |
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} |
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public void checkMemberAccess(Class<?> clazz, int which) { |
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if (clazz == InvokeDynamicPrintArgs.class) |
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throw new SecurityException("checkMemberAccess "+clazz.getName()+" #"+which); |
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} |
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// allow these others: |
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public void checkPermission(java.security.Permission perm) { |
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} |
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} |
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System.setSecurityManager(new SM()); |
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} |
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@Test |
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public void testInvokeDynamicPrintArgs() throws IOException { |
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System.err.println(System.getProperties()); |
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String testClassPath = System.getProperty("build.test.classes.dir"); |
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if (testClassPath == null) throw new RuntimeException(); |
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String[] args = new String[]{ |
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"--verify-specifier-count=3", |
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"--verbose", |
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"--expand-properties", "--classpath", testClassPath, |
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"--java", "test.java.lang.invoke.InvokeDynamicPrintArgs", "--check-output" |
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}; |
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System.err.println("Indify: "+Arrays.toString(args)); |
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indify.Indify.main(args); |
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} |
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private static PrintStream oldOut; |
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private static ByteArrayOutputStream buf; |
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private static void openBuf() { |
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oldOut = System.out; |
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buf = new ByteArrayOutputStream(); |
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System.setOut(new PrintStream(buf)); |
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} |
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private static void closeBuf() { |
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if (buf == null) return; |
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System.out.flush(); |
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System.setOut(oldOut); |
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String[] haveLines = new String(buf.toByteArray()).split("[\n\r]+"); |
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for (String line : haveLines) System.out.println(line); |
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Iterator<String> iter = Arrays.asList(haveLines).iterator(); |
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for (String want : EXPECT_OUTPUT) { |
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String have = iter.hasNext() ? iter.next() : "[EOF]"; |
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if (want.equals(have)) continue; |
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System.err.println("want line: "+want); |
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System.err.println("have line: "+have); |
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throw new AssertionError("unexpected output: "+have); |
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} |
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if (iter.hasNext()) |
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throw new AssertionError("unexpected output: "+iter.next()); |
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} |
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private static final String[] EXPECT_OUTPUT = { |
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"Printing some argument lists, starting with a empty one:", |
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"[test.java.lang.invoke.InvokeDynamicPrintArgs, nothing, ()void][]", |
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"[test.java.lang.invoke.InvokeDynamicPrintArgs, bar, (String,int)void, class java.lang.Void, void type!, 1, 234.5, 67.5, 89][bar arg, 1]", |
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"[test.java.lang.invoke.InvokeDynamicPrintArgs, bar2, (String,int)void, class java.lang.Void, void type!, 1, 234.5, 67.5, 89][bar2 arg, 222]", |
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"[test.java.lang.invoke.InvokeDynamicPrintArgs, baz, (String,int,double)void, 1234.5][baz arg, 2, 3.14]", |
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"[test.java.lang.invoke.InvokeDynamicPrintArgs, foo, (String)void][foo arg]", |
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"Done printing argument lists." |
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}; |
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private static boolean doPrint = true; |
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private static void printArgs(Object bsmInfo, Object... args) { |
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String message = bsmInfo+Arrays.deepToString(args); |
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if (doPrint) System.out.println(message); |
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} |
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private static MethodHandle MH_printArgs() throws ReflectiveOperationException { |
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shouldNotCallThis(); |
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return lookup().findStatic(lookup().lookupClass(), |
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"printArgs", methodType(void.class, Object.class, Object[].class)); |
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} |
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private static CallSite bsm(Lookup caller, String name, MethodType type) throws ReflectiveOperationException { |
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// ignore caller and name, but match the type: |
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Object bsmInfo = Arrays.asList(caller, name, type); |
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return new ConstantCallSite(MH_printArgs().bindTo(bsmInfo).asCollector(Object[].class, type.parameterCount()).asType(type)); |
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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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private static MethodHandle MH_bsm() throws ReflectiveOperationException { |
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shouldNotCallThis(); |
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return lookup().findStatic(lookup().lookupClass(), "bsm", MT_bsm()); |
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} |
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private static MethodHandle non_MH_bsm() throws ReflectiveOperationException { |
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return lookup().findStatic(lookup().lookupClass(), "bsm", MT_bsm()); |
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} |
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/* Example of a constant call site with user-data. |
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* In this case, the user data is exactly the BSM data. |
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* Note that a CCS with user data must use the "hooked" constructor |
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* to bind the CCS itself into the resulting target. |
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* A normal constructor would not allow a circular relation |
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* between the CCS and its target. |
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*/ |
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public static class PrintingCallSite extends ConstantCallSite { |
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final Lookup caller; |
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final String name; |
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final Object[] staticArgs; |
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|
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PrintingCallSite(Lookup caller, String name, MethodType type, Object... staticArgs) throws Throwable { |
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super(type, MH_createTarget()); |
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this.caller = caller; |
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this.name = name; |
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this.staticArgs = staticArgs; |
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} |
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|
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public MethodHandle createTarget() { |
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try { |
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return lookup().bind(this, "runTarget", genericMethodType(0, true)).asType(type()); |
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} catch (ReflectiveOperationException ex) { |
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throw new RuntimeException(ex); |
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} |
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} |
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|
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public Object runTarget(Object... dynamicArgs) { |
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List<Object> bsmInfo = new ArrayList<>(Arrays.asList(caller, name, type())); |
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bsmInfo.addAll(Arrays.asList(staticArgs)); |
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printArgs(bsmInfo, dynamicArgs); |
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return null; |
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} |
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|
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private static MethodHandle MH_createTarget() throws ReflectiveOperationException { |
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shouldNotCallThis(); |
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return lookup().findVirtual(lookup().lookupClass(), "createTarget", methodType(MethodHandle.class)); |
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} |
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} |
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private static CallSite bsm2(Lookup caller, String name, MethodType type, Object... arg) throws Throwable { |
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// ignore caller and name, but match the type: |
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return new PrintingCallSite(caller, name, type, arg); |
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} |
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private static MethodType MT_bsm2() { |
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shouldNotCallThis(); |
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return methodType(CallSite.class, Lookup.class, String.class, MethodType.class, Object[].class); |
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} |
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private static MethodHandle MH_bsm2() throws ReflectiveOperationException { |
|
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shouldNotCallThis(); |
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return lookup().findStatic(lookup().lookupClass(), "bsm2", MT_bsm2()); |
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} |
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||
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private static MethodHandle INDY_nothing() throws Throwable { |
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shouldNotCallThis(); |
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return ((CallSite) MH_bsm().invoke(lookup(), |
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"nothing", methodType(void.class) |
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)).dynamicInvoker(); |
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} |
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private static MethodHandle INDY_foo() throws Throwable { |
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shouldNotCallThis(); |
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return ((CallSite) MH_bsm().invoke(lookup(), |
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"foo", methodType(void.class, String.class) |
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)).dynamicInvoker(); |
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} |
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private static MethodHandle INDY_bar() throws Throwable { |
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shouldNotCallThis(); |
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return ((CallSite) MH_bsm2().invoke(lookup(), |
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"bar", methodType(void.class, String.class, int.class) |
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, Void.class, "void type!", 1, 234.5F, 67.5, (long)89 |
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)).dynamicInvoker(); |
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} |
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private static MethodHandle INDY_bar2() throws Throwable { |
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shouldNotCallThis(); |
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return ((CallSite) MH_bsm2().invoke(lookup(), |
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"bar2", methodType(void.class, String.class, int.class) |
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, Void.class, "void type!", 1, 234.5F, 67.5, (long)89 |
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)).dynamicInvoker(); |
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} |
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private static MethodHandle INDY_baz() throws Throwable { |
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shouldNotCallThis(); |
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return ((CallSite) MH_bsm2().invoke(lookup(), |
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"baz", methodType(void.class, String.class, int.class, double.class) |
261 |
, 1234.5 |
|
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)).dynamicInvoker(); |
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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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if (System.getProperty("InvokeDynamicPrintArgs.allow-untransformed") != null) return; |
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throw new AssertionError("this code should be statically transformed away by Indify"); |
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269 |
} |
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270 |
} |