--- a/jdk/test/java/dyn/JavaDocExamplesTest.java Wed Jul 05 17:38:31 2017 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,220 +0,0 @@
-/*
- * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/* @test
- * @summary example code used in javadoc for java.dyn API
- * @compile -XDallowTransitionalJSR292=no JavaDocExamplesTest.java
- * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableMethodHandles test.java.dyn.JavaDocExamplesTest
- */
-
-/*
----- To run outside jtreg:
-$ $JAVA7X_HOME/bin/javac -cp $JUNIT4_JAR -d /tmp/Classes \
- $DAVINCI/sources/jdk/test/java/dyn/JavaDocExamplesTest.java
-$ $JAVA7X_HOME/bin/java -cp $JUNIT4_JAR:/tmp/Classes \
- -XX:+UnlockExperimentalVMOptions -XX:+EnableMethodHandles \
- -Dtest.java.dyn.JavaDocExamplesTest.verbosity=1 \
- test.java.dyn.JavaDocExamplesTest
-----
-*/
-
-package test.java.dyn;
-
-import java.dyn.*;
-import static java.dyn.MethodHandles.*;
-import static java.dyn.MethodType.*;
-
-import java.lang.reflect.*;
-import java.util.*;
-
-import org.junit.*;
-import static org.junit.Assert.*;
-import static org.junit.Assume.*;
-
-
-/**
- * @author jrose
- */
-public class JavaDocExamplesTest {
- /** Wrapper for running the JUnit tests in this module.
- * Put JUnit on the classpath!
- */
- public static void main(String... ignore) {
- org.junit.runner.JUnitCore.runClasses(JavaDocExamplesTest.class);
- }
- // How much output?
- static int verbosity = Integer.getInteger("test.java.dyn.JavaDocExamplesTest.verbosity", 0);
-
-{}
-static final private Lookup LOOKUP = lookup();
-// static final private MethodHandle CONCAT_1 = LOOKUP.findVirtual(String.class,
-// "concat", methodType(String.class, String.class));
-// static final private MethodHandle HASHCODE_1 = LOOKUP.findVirtual(Object.class,
-// "hashCode", methodType(int.class));
-
-// form required if ReflectiveOperationException is intercepted:
-static final private MethodHandle CONCAT_2, HASHCODE_2;
-static {
- try {
- CONCAT_2 = LOOKUP.findVirtual(String.class,
- "concat", methodType(String.class, String.class));
- HASHCODE_2 = LOOKUP.findVirtual(Object.class,
- "hashCode", methodType(int.class));
- } catch (ReflectiveOperationException ex) {
- throw new RuntimeException(ex);
- }
-}
-{}
-
- @Test public void testFindVirtual() throws Throwable {
-{}
-MethodHandle CONCAT_3 = LOOKUP.findVirtual(String.class,
- "concat", methodType(String.class, String.class));
-MethodHandle HASHCODE_3 = LOOKUP.findVirtual(Object.class,
- "hashCode", methodType(int.class));
-//assertEquals("xy", (String) CONCAT_1.invokeExact("x", "y"));
-assertEquals("xy", (String) CONCAT_2.invokeExact("x", "y"));
-assertEquals("xy", (String) CONCAT_3.invokeExact("x", "y"));
-//assertEquals("xy".hashCode(), (int) HASHCODE_1.invokeExact((Object)"xy"));
-assertEquals("xy".hashCode(), (int) HASHCODE_2.invokeExact((Object)"xy"));
-assertEquals("xy".hashCode(), (int) HASHCODE_3.invokeExact((Object)"xy"));
-{}
- }
- @Test public void testDropArguments() throws Throwable {
- {{
-{} /// JAVADOC
-MethodHandle cat = lookup().findVirtual(String.class,
- "concat", methodType(String.class, String.class));
-assertEquals("xy", (String) cat.invokeExact("x", "y"));
-MethodHandle d0 = dropArguments(cat, 0, String.class);
-assertEquals("yz", (String) d0.invokeExact("x", "y", "z"));
-MethodHandle d1 = dropArguments(cat, 1, String.class);
-assertEquals("xz", (String) d1.invokeExact("x", "y", "z"));
-MethodHandle d2 = dropArguments(cat, 2, String.class);
-assertEquals("xy", (String) d2.invokeExact("x", "y", "z"));
-MethodHandle d12 = dropArguments(cat, 1, int.class, boolean.class);
-assertEquals("xz", (String) d12.invokeExact("x", 12, true, "z"));
- }}
- }
-
- @Test public void testFilterArguments() throws Throwable {
- {{
-{} /// JAVADOC
-MethodHandle cat = lookup().findVirtual(String.class,
- "concat", methodType(String.class, String.class));
-MethodHandle upcase = lookup().findVirtual(String.class,
- "toUpperCase", methodType(String.class));
-assertEquals("xy", (String) cat.invokeExact("x", "y"));
-MethodHandle f0 = filterArguments(cat, 0, upcase);
-assertEquals("Xy", (String) f0.invokeExact("x", "y")); // Xy
-MethodHandle f1 = filterArguments(cat, 1, upcase);
-assertEquals("xY", (String) f1.invokeExact("x", "y")); // xY
-MethodHandle f2 = filterArguments(cat, 0, upcase, upcase);
-assertEquals("XY", (String) f2.invokeExact("x", "y")); // XY
- }}
- }
-
- static void assertEquals(Object exp, Object act) {
- if (verbosity > 0)
- System.out.println("result: "+act);
- Assert.assertEquals(exp, act);
- }
-
- @Test public void testMethodHandlesSummary() throws Throwable {
- {{
-{} /// JAVADOC
-Object x, y; String s; int i;
-MethodType mt; MethodHandle mh;
-MethodHandles.Lookup lookup = MethodHandles.lookup();
-// mt is (char,char)String
-mt = MethodType.methodType(String.class, char.class, char.class);
-mh = lookup.findVirtual(String.class, "replace", mt);
-s = (String) mh.invokeExact("daddy",'d','n');
-// invokeExact(Ljava/lang/String;CC)Ljava/lang/String;
-assert(s.equals("nanny"));
-// weakly typed invocation (using MHs.invoke)
-s = (String) mh.invokeWithArguments("sappy", 'p', 'v');
-assert(s.equals("savvy"));
-// mt is (Object[])List
-mt = MethodType.methodType(java.util.List.class, Object[].class);
-mh = lookup.findStatic(java.util.Arrays.class, "asList", mt);
-assert(mh.isVarargsCollector());
-x = mh.invokeGeneric("one", "two");
-// invokeGeneric(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object;
-assert(x.equals(java.util.Arrays.asList("one","two")));
-// mt is (Object,Object,Object)Object
-mt = MethodType.genericMethodType(3);
-mh = mh.asType(mt);
-x = mh.invokeExact((Object)1, (Object)2, (Object)3);
-// invokeExact(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
-assert(x.equals(java.util.Arrays.asList(1,2,3)));
-// mt is { => int}
-mt = MethodType.methodType(int.class);
-mh = lookup.findVirtual(java.util.List.class, "size", mt);
-i = (int) mh.invokeExact(java.util.Arrays.asList(1,2,3));
-// invokeExact(Ljava/util/List;)I
-assert(i == 3);
-mt = MethodType.methodType(void.class, String.class);
-mh = lookup.findVirtual(java.io.PrintStream.class, "println", mt);
-mh.invokeExact(System.out, "Hello, world.");
-// invokeExact(Ljava/io/PrintStream;Ljava/lang/String;)V
-{}
- }}
- }
-
- @Test public void testAsVarargsCollector() throws Throwable {
- {{
-{} /// JAVADOC
-MethodHandle asList = publicLookup()
- .findStatic(Arrays.class, "asList", methodType(List.class, Object[].class))
- .asVarargsCollector(Object[].class);
-assertEquals("[]", asList.invokeGeneric().toString());
-assertEquals("[1]", asList.invokeGeneric(1).toString());
-assertEquals("[two, too]", asList.invokeGeneric("two", "too").toString());
-Object[] argv = { "three", "thee", "tee" };
-assertEquals("[three, thee, tee]", asList.invokeGeneric(argv).toString());
-List ls = (List) asList.invokeGeneric((Object)argv);
-assertEquals(1, ls.size());
-assertEquals("[three, thee, tee]", Arrays.toString((Object[])ls.get(0)));
- }}
- }
-
- @Test public void testVarargsCollectorSuppression() throws Throwable {
- {{
-{} /// JAVADOC
-MethodHandle vamh = publicLookup()
- .findStatic(Arrays.class, "asList", methodType(List.class, Object[].class))
- .asVarargsCollector(Object[].class);
-MethodHandle mh = MethodHandles.exactInvoker(vamh.type()).bindTo(vamh);
-assert(vamh.type().equals(mh.type()));
-assertEquals("[1, 2, 3]", vamh.invokeGeneric(1,2,3).toString());
-boolean failed = false;
-try { mh.invokeGeneric(1,2,3); }
-catch (WrongMethodTypeException ex) { failed = true; }
-assert(failed);
-{}
- }}
- }
-}