--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/dyn/InvokeDynamicPrintArgs.java Thu Dec 02 02:59:02 2010 -0800
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 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.
+ *
+ * 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 smoke test for invokedynamic instructions
+ * @library indify
+ * @compile InvokeDynamicPrintArgs.java
+ * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableInvokeDynamic
+ * indify.Indify
+ * --verify-specifier-count=3 --transitionalJSR292=false
+ * --expand-properties --classpath ${test.classes}
+ * --java InvokeDynamicPrintArgs --check-output
+ */
+
+import java.util.*;
+import java.io.*;
+
+import java.dyn.*;
+import static java.dyn.MethodHandles.*;
+import static java.dyn.MethodType.*;
+
+public class InvokeDynamicPrintArgs {
+ public static void main(String... av) throws Throwable {
+ if (av.length > 0) openBuf(); // --check-output mode
+ System.out.println("Printing some argument lists, starting with a empty one:");
+ INDY_nothing().invokeExact(); // BSM specifier #0 = {bsm}
+ INDY_bar().invokeExact("bar arg", 1); // BSM specifier #1 = {bsm2, Void.class, "void type"}
+ INDY_bar2().invokeExact("bar2 arg", 222); // BSM specifier #1 = (same)
+ INDY_baz().invokeExact("baz arg", 2, 3.14); // BSM specifier #2 = {bsm2, 1234.5}
+ INDY_foo().invokeExact("foo arg"); // BSM specifier #0 = (same)
+ // Hence, BSM specifier count should be 3. See "--verify-specifier-count=3" above.
+ System.out.println("Done printing argument lists.");
+ closeBuf();
+ }
+
+ private static PrintStream oldOut;
+ private static ByteArrayOutputStream buf;
+ private static void openBuf() {
+ oldOut = System.out;
+ buf = new ByteArrayOutputStream();
+ System.setOut(new PrintStream(buf));
+ }
+ private static void closeBuf() {
+ if (buf == null) return;
+ System.out.flush();
+ System.setOut(oldOut);
+ String[] haveLines = new String(buf.toByteArray()).split("[\n\r]+");
+ for (String line : haveLines) System.out.println(line);
+ Iterator<String> iter = Arrays.asList(haveLines).iterator();
+ for (String want : EXPECT_OUTPUT) {
+ String have = iter.hasNext() ? iter.next() : "[EOF]";
+ if (want.equals(have)) continue;
+ System.err.println("want line: "+want);
+ System.err.println("have line: "+have);
+ throw new AssertionError("unexpected output: "+have);
+ }
+ if (iter.hasNext())
+ throw new AssertionError("unexpected output: "+iter.next());
+ }
+ private static final String[] EXPECT_OUTPUT = {
+ "Printing some argument lists, starting with a empty one:",
+ "[InvokeDynamicPrintArgs, nothing, ()void][]",
+ "[InvokeDynamicPrintArgs, bar, (java.lang.String,int)void, class java.lang.Void, void type!, 1, 234.5, 67.5, 89][bar arg, 1]",
+ "[InvokeDynamicPrintArgs, bar2, (java.lang.String,int)void, class java.lang.Void, void type!, 1, 234.5, 67.5, 89][bar2 arg, 222]",
+ "[InvokeDynamicPrintArgs, baz, (java.lang.String,int,double)void, 1234.5][baz arg, 2, 3.14]",
+ "[InvokeDynamicPrintArgs, foo, (java.lang.String)void][foo arg]",
+ "Done printing argument lists."
+ };
+
+ private static void printArgs(Object bsmInfo, Object... args) {
+ System.out.println(bsmInfo+Arrays.deepToString(args));
+ }
+ private static MethodHandle MH_printArgs() throws ReflectiveOperationException {
+ shouldNotCallThis();
+ return lookup().findStatic(lookup().lookupClass(),
+ "printArgs", methodType(void.class, Object.class, Object[].class));
+ }
+
+ private static CallSite bsm(Lookup caller, String name, MethodType type) throws ReflectiveOperationException {
+ // ignore caller and name, but match the type:
+ Object bsmInfo = Arrays.asList(caller, name, type);
+ return new CallSite(MH_printArgs().bindTo(bsmInfo).asCollector(Object[].class, type.parameterCount()).asType(type));
+ }
+ private static MethodType MT_bsm() {
+ shouldNotCallThis();
+ return methodType(CallSite.class, Lookup.class, String.class, MethodType.class);
+ }
+ private static MethodHandle MH_bsm() throws ReflectiveOperationException {
+ shouldNotCallThis();
+ return lookup().findStatic(lookup().lookupClass(), "bsm", MT_bsm());
+ }
+
+ private static CallSite bsm2(Lookup caller, String name, MethodType type, Object arg) throws ReflectiveOperationException {
+ // ignore caller and name, but match the type:
+ List<Object> bsmInfo = new ArrayList<>(Arrays.asList(caller, name, type));
+ if (arg instanceof Object[])
+ bsmInfo.addAll(Arrays.asList((Object[])arg));
+ else
+ bsmInfo.add(arg);
+ return new CallSite(MH_printArgs().bindTo(bsmInfo).asCollector(Object[].class, type.parameterCount()).asType(type));
+ }
+ private static MethodType MT_bsm2() {
+ shouldNotCallThis();
+ return methodType(CallSite.class, Lookup.class, String.class, MethodType.class, Object.class);
+ }
+ private static MethodHandle MH_bsm2() throws ReflectiveOperationException {
+ shouldNotCallThis();
+ return lookup().findStatic(lookup().lookupClass(), "bsm2", MT_bsm2());
+ }
+
+ private static MethodHandle INDY_nothing() throws Throwable {
+ shouldNotCallThis();
+ return ((CallSite) MH_bsm().invokeGeneric(lookup(),
+ "nothing", methodType(void.class)
+ )).dynamicInvoker();
+ }
+ private static MethodHandle INDY_foo() throws Throwable {
+ shouldNotCallThis();
+ return ((CallSite) MH_bsm().invokeGeneric(lookup(),
+ "foo", methodType(void.class, String.class)
+ )).dynamicInvoker();
+ }
+ private static MethodHandle INDY_bar() throws Throwable {
+ shouldNotCallThis();
+ return ((CallSite) MH_bsm2().invokeGeneric(lookup(),
+ "bar", methodType(void.class, String.class, int.class)
+ , new Object[] { Void.class, "void type!",
+ 1, 234.5F, 67.5, (long)89 }
+ )).dynamicInvoker();
+ }
+ private static MethodHandle INDY_bar2() throws Throwable {
+ shouldNotCallThis();
+ return ((CallSite) MH_bsm2().invokeGeneric(lookup(),
+ "bar2", methodType(void.class, String.class, int.class)
+ , new Object[] { Void.class, "void type!",
+ 1, 234.5F, 67.5, (long)89 }
+ )).dynamicInvoker();
+ }
+ private static MethodHandle INDY_baz() throws Throwable {
+ shouldNotCallThis();
+ return ((CallSite) MH_bsm2().invokeGeneric(lookup(),
+ "baz", methodType(void.class, String.class, int.class, double.class)
+ , 1234.5
+ )).dynamicInvoker();
+ }
+
+ private static void shouldNotCallThis() {
+ // if this gets called, the transformation has not taken place
+ if (System.getProperty("InvokeDynamicPrintArgs.allow-untransformed") != null) return;
+ throw new AssertionError("this code should be statically transformed away by Indify");
+ }
+}