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test/tools/javac/meth/TestCP.java@46d720734db3 (annotated)

test/tools/javac/meth/TestCP.java

Sun, 03 Apr 2011 17:00:50 -0700

author

ksrini

date

Sun, 03 Apr 2011 17:00:50 -0700

changeset 957

46d720734db3

parent 820

2d5aff89aaa3

child 966

53f212bed4f4

permissions

-rw-r--r--

7028405: (javac) remove unused JSR-292 code
Reviewed-by: jrose, mcimadamore

mcimadamore@716	1	/*
mcimadamore@716	2	* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
mcimadamore@716	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
mcimadamore@716	4	*
mcimadamore@716	5	* This code is free software; you can redistribute it and/or modify it
mcimadamore@716	6	* under the terms of the GNU General Public License version 2 only, as
mcimadamore@716	7	* published by the Free Software Foundation.
mcimadamore@716	8	*
mcimadamore@716	9	* This code is distributed in the hope that it will be useful, but WITHOUT
mcimadamore@716	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
mcimadamore@716	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
mcimadamore@716	12	* version 2 for more details (a copy is included in the LICENSE file that
mcimadamore@716	13	* accompanied this code).
mcimadamore@716	14	*
mcimadamore@716	15	* You should have received a copy of the GNU General Public License version
mcimadamore@716	16	* 2 along with this work; if not, write to the Free Software Foundation,
mcimadamore@716	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
mcimadamore@716	18	*
mcimadamore@716	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
mcimadamore@716	20	* or visit www.oracle.com if you need additional information or have any
mcimadamore@716	21	* questions.
mcimadamore@716	22	*/
mcimadamore@716	23
mcimadamore@716	24	/*
mcimadamore@716	25	* @test
mcimadamore@716	26	* @bug 6991980
mcimadamore@716	27	* @summary polymorphic signature calls don't share the same CP entries
mcimadamore@716	28	* @run main TestCP
mcimadamore@716	29	*/
mcimadamore@716	30
mcimadamore@716	31	import com.sun.tools.classfile.Instruction;
mcimadamore@716	32	import com.sun.tools.classfile.Attribute;
mcimadamore@716	33	import com.sun.tools.classfile.ClassFile;
mcimadamore@716	34	import com.sun.tools.classfile.Code_attribute;
mcimadamore@716	35	import com.sun.tools.classfile.ConstantPool.*;
mcimadamore@716	36	import com.sun.tools.classfile.Method;
mcimadamore@716	37
ksrini@957	38	import java.lang.invoke.*;
mcimadamore@716	39	import java.io.*;
mcimadamore@716	40
mcimadamore@716	41	public class TestCP {
mcimadamore@716	42
mcimadamore@716	43	static class TestClass {
mcimadamore@716	44	void test(MethodHandle mh) throws Throwable {
mcimadamore@820	45	Number n = (Number)mh.invokeExact("daddy",1,'n');
mcimadamore@716	46	n = (Number)mh.invokeExact("bunny",1,'d');
mcimadamore@820	47	n = (Number)(mh.invokeExact("foo",1,'d'));
mcimadamore@820	48	n = (Number)((mh.invokeExact("bar",1,'d')));
mcimadamore@716	49	}
mcimadamore@716	50	}
mcimadamore@716	51
mcimadamore@716	52	static final String PS_TYPE = "(Ljava/lang/String;IC)Ljava/lang/Number;";
mcimadamore@820	53	static final int PS_CALLS_COUNT = 4;
mcimadamore@716	54	static final String SUBTEST_NAME = TestClass.class.getName() + ".class";
mcimadamore@716	55	static final String TEST_METHOD_NAME = "test";
mcimadamore@716	56
mcimadamore@716	57	public static void main(String... args) throws Exception {
mcimadamore@716	58	new TestCP().run();
mcimadamore@716	59	}
mcimadamore@716	60
mcimadamore@716	61	public void run() throws Exception {
mcimadamore@716	62	String workDir = System.getProperty("test.classes");
mcimadamore@716	63	File compiledTest = new File(workDir, SUBTEST_NAME);
mcimadamore@716	64	verifyMethodHandleInvocationDescriptors(compiledTest);
mcimadamore@716	65	}
mcimadamore@716	66
mcimadamore@716	67	void verifyMethodHandleInvocationDescriptors(File f) {
mcimadamore@716	68	System.err.println("verify: " + f);
mcimadamore@716	69	try {
mcimadamore@716	70	int count = 0;
mcimadamore@716	71	ClassFile cf = ClassFile.read(f);
mcimadamore@716	72	Method testMethod = null;
mcimadamore@716	73	for (Method m : cf.methods) {
mcimadamore@716	74	if (m.getName(cf.constant_pool).equals(TEST_METHOD_NAME)) {
mcimadamore@716	75	testMethod = m;
mcimadamore@716	76	break;
mcimadamore@716	77	}
mcimadamore@716	78	}
mcimadamore@716	79	if (testMethod == null) {
mcimadamore@716	80	throw new Error("Test method not found");
mcimadamore@716	81	}
mcimadamore@716	82	Code_attribute ea = (Code_attribute)testMethod.attributes.get(Attribute.Code);
mcimadamore@716	83	if (testMethod == null) {
mcimadamore@716	84	throw new Error("Code attribute for test() method not found");
mcimadamore@716	85	}
mcimadamore@716	86	int instr_count = 0;
mcimadamore@716	87	int cp_entry = -1;
mcimadamore@716	88
mcimadamore@716	89	for (Instruction i : ea.getInstructions()) {
mcimadamore@716	90	if (i.getMnemonic().equals("invokevirtual")) {
mcimadamore@716	91	instr_count++;
mcimadamore@716	92	if (cp_entry == -1) {
mcimadamore@716	93	cp_entry = i.getUnsignedShort(1);
mcimadamore@716	94	} else if (cp_entry != i.getUnsignedShort(1)) {
mcimadamore@716	95	throw new Error("Unexpected CP entry in polymorphic signature call");
mcimadamore@716	96	}
mcimadamore@716	97	CONSTANT_Methodref_info methRef =
mcimadamore@716	98	(CONSTANT_Methodref_info)cf.constant_pool.get(cp_entry);
mcimadamore@716	99	String type = methRef.getNameAndTypeInfo().getType();
mcimadamore@716	100	if (!type.equals(PS_TYPE)) {
mcimadamore@716	101	throw new Error("Unexpected type in polymorphic signature call: " + type);
mcimadamore@716	102	}
mcimadamore@716	103	}
mcimadamore@716	104	}
mcimadamore@716	105	if (instr_count != PS_CALLS_COUNT) {
mcimadamore@716	106	throw new Error("Wrong number of polymorphic signature call found: " + instr_count);
mcimadamore@716	107	}
mcimadamore@716	108	} catch (Exception e) {
mcimadamore@716	109	e.printStackTrace();
mcimadamore@716	110	throw new Error("error reading " + f +": " + e);
mcimadamore@716	111	}
mcimadamore@716	112	}
mcimadamore@716	113	}