--- a/jdk/test/java/dyn/InvokeGenericTest.java Wed Jul 05 17:38:31 2017 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,484 +0,0 @@
-/*
- * Copyright (c) 2009, 2010, 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 unit tests for java.dyn.MethodHandle.invokeGeneric
- * @compile -XDallowTransitionalJSR292=no -target 7 InvokeGenericTest.java
- * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableMethodHandles test.java.dyn.InvokeGenericTest
- */
-
-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 InvokeGenericTest {
- // How much output?
- static int verbosity = 0;
- static {
- String vstr = System.getProperty("test.java.dyn.InvokeGenericTest.verbosity");
- if (vstr != null) verbosity = Integer.parseInt(vstr);
- }
-
- @Test
- public void testFirst() throws Throwable {
- verbosity += 9; try {
- // left blank for debugging
- } finally { printCounts(); verbosity -= 9; }
- }
-
- public InvokeGenericTest() {
- }
-
- @Before
- public void checkImplementedPlatform() {
- boolean platformOK = false;
- Properties properties = System.getProperties();
- String vers = properties.getProperty("java.vm.version");
- String name = properties.getProperty("java.vm.name");
- String arch = properties.getProperty("os.arch");
- if ((arch.equals("amd64") || arch.equals("i386") || arch.equals("x86") ||
- arch.equals("sparc") || arch.equals("sparcv9")) &&
- (name.contains("Client") || name.contains("Server"))
- ) {
- platformOK = true;
- } else {
- System.err.println("Skipping tests for unsupported platform: "+Arrays.asList(vers, name, arch));
- }
- assumeTrue(platformOK);
- }
-
- String testName;
- static int allPosTests, allNegTests;
- int posTests, negTests;
- @After
- public void printCounts() {
- if (verbosity >= 2 && (posTests | negTests) != 0) {
- System.out.println();
- if (posTests != 0) System.out.println("=== "+testName+": "+posTests+" positive test cases run");
- if (negTests != 0) System.out.println("=== "+testName+": "+negTests+" negative test cases run");
- allPosTests += posTests;
- allNegTests += negTests;
- posTests = negTests = 0;
- }
- }
- void countTest(boolean positive) {
- if (positive) ++posTests;
- else ++negTests;
- }
- void countTest() { countTest(true); }
- void startTest(String name) {
- if (testName != null) printCounts();
- if (verbosity >= 1)
- System.out.println(name);
- posTests = negTests = 0;
- testName = name;
- }
-
- @BeforeClass
- public static void setUpClass() throws Exception {
- calledLog.clear();
- calledLog.add(null);
- nextArgVal = INITIAL_ARG_VAL;
- }
-
- @AfterClass
- public static void tearDownClass() throws Exception {
- int posTests = allPosTests, negTests = allNegTests;
- if (verbosity >= 2 && (posTests | negTests) != 0) {
- System.out.println();
- if (posTests != 0) System.out.println("=== "+posTests+" total positive test cases");
- if (negTests != 0) System.out.println("=== "+negTests+" total negative test cases");
- }
- }
-
- static List<Object> calledLog = new ArrayList<Object>();
- static Object logEntry(String name, Object... args) {
- return Arrays.asList(name, Arrays.asList(args));
- }
- static Object called(String name, Object... args) {
- Object entry = logEntry(name, args);
- calledLog.add(entry);
- return entry;
- }
- static void assertCalled(String name, Object... args) {
- Object expected = logEntry(name, args);
- Object actual = calledLog.get(calledLog.size() - 1);
- if (expected.equals(actual) && verbosity < 9) return;
- System.out.println("assertCalled "+name+":");
- System.out.println("expected: "+expected);
- System.out.println("actual: "+actual);
- System.out.println("ex. types: "+getClasses(expected));
- System.out.println("act. types: "+getClasses(actual));
- assertEquals("previous method call", expected, actual);
- }
- static void printCalled(MethodHandle target, String name, Object... args) {
- if (verbosity >= 3)
- System.out.println("calling MH="+target+" to "+name+Arrays.toString(args));
- }
-
- static Object castToWrapper(Object value, Class<?> dst) {
- Object wrap = null;
- if (value instanceof Number)
- wrap = castToWrapperOrNull(((Number)value).longValue(), dst);
- if (value instanceof Character)
- wrap = castToWrapperOrNull((char)(Character)value, dst);
- if (wrap != null) return wrap;
- return dst.cast(value);
- }
-
- static Object castToWrapperOrNull(long value, Class<?> dst) {
- if (dst == int.class || dst == Integer.class)
- return (int)(value);
- if (dst == long.class || dst == Long.class)
- return (long)(value);
- if (dst == char.class || dst == Character.class)
- return (char)(value);
- if (dst == short.class || dst == Short.class)
- return (short)(value);
- if (dst == float.class || dst == Float.class)
- return (float)(value);
- if (dst == double.class || dst == Double.class)
- return (double)(value);
- if (dst == byte.class || dst == Byte.class)
- return (byte)(value);
- if (dst == boolean.class || dst == boolean.class)
- return ((value % 29) & 1) == 0;
- return null;
- }
-
- static final int ONE_MILLION = (1000*1000), // first int value
- TEN_BILLION = (10*1000*1000*1000), // scale factor to reach upper 32 bits
- INITIAL_ARG_VAL = ONE_MILLION << 1; // <<1 makes space for sign bit;
- static long nextArgVal;
- static long nextArg(boolean moreBits) {
- long val = nextArgVal++;
- long sign = -(val & 1); // alternate signs
- val >>= 1;
- if (moreBits)
- // Guarantee some bits in the high word.
- // In any case keep the decimal representation simple-looking,
- // with lots of zeroes, so as not to make the printed decimal
- // strings unnecessarily noisy.
- val += (val % ONE_MILLION) * TEN_BILLION;
- return val ^ sign;
- }
- static int nextArg() {
- // Produce a 32-bit result something like ONE_MILLION+(smallint).
- // Example: 1_000_042.
- return (int) nextArg(false);
- }
- static long nextArg(Class<?> kind) {
- if (kind == long.class || kind == Long.class ||
- kind == double.class || kind == Double.class)
- // produce a 64-bit result something like
- // ((TEN_BILLION+1) * (ONE_MILLION+(smallint)))
- // Example: 10_000_420_001_000_042.
- return nextArg(true);
- return (long) nextArg();
- }
-
- static Object randomArg(Class<?> param) {
- Object wrap = castToWrapperOrNull(nextArg(param), param);
- if (wrap != null) {
- return wrap;
- }
-// import sun.dyn.util.Wrapper;
-// Wrapper wrap = Wrapper.forBasicType(dst);
-// if (wrap == Wrapper.OBJECT && Wrapper.isWrapperType(dst))
-// wrap = Wrapper.forWrapperType(dst);
-// if (wrap != Wrapper.OBJECT)
-// return wrap.wrap(nextArg++);
- if (param.isInterface()) {
- for (Class<?> c : param.getClasses()) {
- if (param.isAssignableFrom(c) && !c.isInterface())
- { param = c; break; }
- }
- }
- if (param.isInterface() || param.isAssignableFrom(String.class))
- return "#"+nextArg();
- else
- try {
- return param.newInstance();
- } catch (InstantiationException ex) {
- } catch (IllegalAccessException ex) {
- }
- return null; // random class not Object, String, Integer, etc.
- }
- static Object[] randomArgs(Class<?>... params) {
- Object[] args = new Object[params.length];
- for (int i = 0; i < args.length; i++)
- args[i] = randomArg(params[i]);
- return args;
- }
- static Object[] randomArgs(int nargs, Class<?> param) {
- Object[] args = new Object[nargs];
- for (int i = 0; i < args.length; i++)
- args[i] = randomArg(param);
- return args;
- }
-
- static final Object ANON_OBJ = new Object();
- static Object zeroArg(Class<?> param) {
- Object x = castToWrapperOrNull(0L, param);
- if (x != null) return x;
- if (param.isInterface() || param.isAssignableFrom(String.class)) return "\"\"";
- if (param == Object.class) return ANON_OBJ;
- if (param.getComponentType() != null) return Array.newInstance(param.getComponentType(), 0);
- return null;
- }
- static Object[] zeroArgs(Class<?>... params) {
- Object[] args = new Object[params.length];
- for (int i = 0; i < args.length; i++)
- args[i] = zeroArg(params[i]);
- return args;
- }
- static Object[] zeroArgs(List<Class<?>> params) {
- return zeroArgs(params.toArray(new Class<?>[0]));
- }
-
- static <T, E extends T> T[] array(Class<T[]> atype, E... a) {
- return Arrays.copyOf(a, a.length, atype);
- }
- static <T> T[] cat(T[] a, T... b) {
- int alen = a.length, blen = b.length;
- if (blen == 0) return a;
- T[] c = Arrays.copyOf(a, alen + blen);
- System.arraycopy(b, 0, c, alen, blen);
- return c;
- }
- static Integer[] boxAll(int... vx) {
- Integer[] res = new Integer[vx.length];
- for (int i = 0; i < res.length; i++) {
- res[i] = vx[i];
- }
- return res;
- }
- static Object getClasses(Object x) {
- if (x == null) return x;
- if (x instanceof String) return x; // keep the name
- if (x instanceof List) {
- // recursively report classes of the list elements
- Object[] xa = ((List)x).toArray();
- for (int i = 0; i < xa.length; i++)
- xa[i] = getClasses(xa[i]);
- return Arrays.asList(xa);
- }
- return x.getClass().getSimpleName();
- }
-
- static MethodHandle changeArgTypes(MethodHandle target, Class<?> argType) {
- return changeArgTypes(target, 0, 999, argType);
- }
- static MethodHandle changeArgTypes(MethodHandle target,
- int beg, int end, Class<?> argType) {
- MethodType targetType = target.type();
- end = Math.min(end, targetType.parameterCount());
- ArrayList<Class<?>> argTypes = new ArrayList<Class<?>>(targetType.parameterList());
- Collections.fill(argTypes.subList(beg, end), argType);
- MethodType ttype2 = MethodType.methodType(targetType.returnType(), argTypes);
- return MethodHandles.convertArguments(target, ttype2);
- }
-
- // This lookup is good for all members in and under InvokeGenericTest.
- static final Lookup LOOKUP = MethodHandles.lookup();
-
- Map<List<Class<?>>, MethodHandle> CALLABLES = new HashMap<List<Class<?>>, MethodHandle>();
- MethodHandle callable(List<Class<?>> params) {
- MethodHandle mh = CALLABLES.get(params);
- if (mh == null) {
- mh = collector_MH.asType(methodType(Object.class, params));
- CALLABLES.put(params, mh);
- }
- return mh;
- }
- MethodHandle callable(Class<?>... params) {
- return callable(Arrays.asList(params));
- }
- private static Object collector(Object... args) {
- return Arrays.asList(args);
- }
- private static final MethodHandle collector_MH;
- static {
- try {
- collector_MH
- = LOOKUP.findStatic(LOOKUP.lookupClass(),
- "collector",
- methodType(Object.class, Object[].class));
- } catch (ReflectiveOperationException ex) {
- throw new RuntimeException(ex);
- }
- }
-
- @Test
- public void testSimple() throws Throwable {
- startTest("testSimple");
- countTest();
- String[] args = { "one", "two" };
- MethodHandle mh = callable(Object.class, String.class);
- Object res; List resl;
- res = resl = (List) mh.invokeGeneric((String)args[0], (Object)args[1]);
- //System.out.println(res);
- assertEquals(Arrays.asList(args), res);
- }
-
- @Test
- public void testWrongArgumentCount() throws Throwable {
- startTest("testWrongArgumentCount");
- for (int i = 0; i <= 10; i++) {
- testWrongArgumentCount(Collections.<Class<?>>nCopies(i, Integer.class));
- if (i <= 4) {
- testWrongArgumentCount(Collections.<Class<?>>nCopies(i, int.class));
- testWrongArgumentCount(Collections.<Class<?>>nCopies(i, long.class));
- }
- }
- }
- public void testWrongArgumentCount(List<Class<?>> params) throws Throwable {
- int max = params.size();
- for (int i = 0; i < max; i++) {
- List<Class<?>> params2 = params.subList(0, i);
- for (int k = 0; k <= 2; k++) {
- if (k == 1) params = methodType(Object.class, params).generic().parameterList();
- if (k == 2) params2 = methodType(Object.class, params2).generic().parameterList();
- testWrongArgumentCount(params, params2);
- testWrongArgumentCount(params2, params);
- }
- }
- }
- public void testWrongArgumentCount(List<Class<?>> expect, List<Class<?>> observe) throws Throwable {
- countTest(false);
- if (expect.equals(observe))
- assert(false);
- MethodHandle target = callable(expect);
- Object[] args = zeroArgs(observe);
- Object junk;
- try {
- switch (args.length) {
- case 0:
- junk = target.invokeGeneric(); break;
- case 1:
- junk = target.invokeGeneric(args[0]); break;
- case 2:
- junk = target.invokeGeneric(args[0], args[1]); break;
- case 3:
- junk = target.invokeGeneric(args[0], args[1], args[2]); break;
- case 4:
- junk = target.invokeGeneric(args[0], args[1], args[2], args[3]); break;
- default:
- junk = target.invokeWithArguments(args); break;
- }
- } catch (WrongMethodTypeException ex) {
- return;
- } catch (Exception ex) {
- throw new RuntimeException("wrong exception calling "+target+target.type()+" on "+Arrays.asList(args)+" : "+ex);
- }
- throw new RuntimeException("bad success calling "+target+target.type()+" on "+Arrays.asList(args));
- }
-
- /** Make a list of all combinations of the given types, with the given arities.
- * A void return type is possible iff the first type is void.class.
- */
- static List<MethodType> allMethodTypes(int minargc, int maxargc, Class<?>... types) {
- ArrayList<MethodType> result = new ArrayList<MethodType>();
- if (types.length > 0) {
- ArrayList<MethodType> argcTypes = new ArrayList<MethodType>();
- // build arity-zero types first
- for (Class<?> rtype : types) {
- argcTypes.add(MethodType.methodType(rtype));
- }
- if (types[0] == void.class)
- // void is not an argument type
- types = Arrays.copyOfRange(types, 1, types.length);
- for (int argc = 0; argc <= maxargc; argc++) {
- if (argc >= minargc)
- result.addAll(argcTypes);
- if (argc >= maxargc)
- break;
- ArrayList<MethodType> prevTypes = argcTypes;
- argcTypes = new ArrayList<MethodType>();
- for (MethodType prevType : prevTypes) {
- for (Class<?> ptype : types) {
- argcTypes.add(prevType.insertParameterTypes(argc, ptype));
- }
- }
- }
- }
- return Collections.unmodifiableList(result);
- }
- static List<MethodType> allMethodTypes(int argc, Class<?>... types) {
- return allMethodTypes(argc, argc, types);
- }
-
- interface RandomInterface { }
-
- MethodHandle toString_MH;
-
- @Test
- public void testReferenceConversions() throws Throwable {
- startTest("testReferenceConversions");
- toString_MH = LOOKUP.
- findVirtual(Object.class, "toString", MethodType.methodType(String.class));
- String[] args = { "one", "two" };
- for (MethodType type : allMethodTypes(2, Object.class, String.class, RandomInterface.class)) {
- testReferenceConversions(type, args);
- }
- }
- public void testReferenceConversions(MethodType type, Object... args) throws Throwable {
- countTest();
- if (verbosity > 3) System.out.println("target type: "+type);
- MethodHandle mh = callable(type.parameterList());
- MethodHandle tsdrop = MethodHandles.dropArguments(toString_MH, 1, type.parameterList());
- mh = MethodHandles.foldArguments(tsdrop, mh);
- mh = mh.asType(type);
- Object res = mh.invokeGeneric((String)args[0], (Object)args[1]);
- //System.out.println(res);
- assertEquals(Arrays.asList(args).toString(), res);
- }
-
-
- @Test @Ignore("known failure pending 6939861")
- public void testBoxConversions() throws Throwable {
- startTest("testBoxConversions");
- countTest();
- Integer[] args = { 1, 2 };
- MethodHandle mh = callable(Object.class, int.class);
- Object res; List resl;
- res = resl = (List) mh.invokeGeneric((int)args[0], (Object)args[1]);
- //System.out.println(res);
- assertEquals(Arrays.asList(args), res);
- }
-
-}