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test/tools/javap/MethodParameters.java@2eb010b6cb22 (annotated)

test/tools/javap/MethodParameters.java

Thu, 31 Aug 2017 15:17:03 +0800

author

aoqi

date

Thu, 31 Aug 2017 15:17:03 +0800

changeset 2525

2eb010b6cb22

parent 2287

b2bc7b778287

parent 0

959103a6100f

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2010, 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*/
aoqi@0	23
aoqi@0	24	/*
aoqi@0	25	* @test
aoqi@0	26	* @bug 8004727 8005647
aoqi@0	27	* @summary javac should generate method parameters correctly.
aoqi@0	28	*/
aoqi@0	29
aoqi@0	30	import java.io.*;
aoqi@0	31	import java.util.*;
aoqi@0	32
aoqi@0	33	public class MethodParameters {
aoqi@0	34
aoqi@0	35	static final String Foo_name = "Foo";
aoqi@0	36	static final String Foo_contents =
aoqi@0	37	("public class Foo {\n" +
aoqi@0	38	" Foo() {}\n" +
aoqi@0	39	" Foo(int i) {}\n" +
aoqi@0	40	" void foo0() {}\n" +
aoqi@0	41	" void foo2(int j, int k) {}\n" +
aoqi@0	42	"}").replaceAll(" +", " ");
aoqi@0	43
aoqi@0	44	static final String Init0_expected =
aoqi@0	45	(" Foo();\n" +
aoqi@0	46	" descriptor: ()V\n" +
aoqi@0	47	" flags:\n" +
aoqi@0	48	" Code:\n" +
aoqi@0	49	" stack=1, locals=1, args_size=1\n" +
aoqi@0	50	" 0: aload_0\n" +
aoqi@0	51	" 1: invokespecial #1 // Method java/lang/Object.\"<init>\":()V\n" +
aoqi@0	52	" 4: return\n" +
aoqi@0	53	" LineNumberTable:\n" +
aoqi@0	54	" line 2: 0").replaceAll(" +", " ");
aoqi@0	55
aoqi@0	56	static final String Init1_expected =
aoqi@0	57	(" Foo(int);\n" +
aoqi@0	58	" descriptor: (I)V\n" +
aoqi@0	59	" flags:\n" +
aoqi@0	60	" Code:\n" +
aoqi@0	61	" stack=1, locals=2, args_size=2\n" +
aoqi@0	62	" 0: aload_0\n" +
aoqi@0	63	" 1: invokespecial #1 // Method java/lang/Object.\"<init>\":()V\n" +
aoqi@0	64	" 4: return\n" +
aoqi@0	65	" LineNumberTable:\n" +
aoqi@0	66	" line 3: 0\n" +
aoqi@0	67	" MethodParameters:\n" +
aoqi@0	68	" Name Flags\n" +
aoqi@0	69	" i").replaceAll(" +", " ");
aoqi@0	70
aoqi@0	71	static final String foo0_expected =
aoqi@0	72	(" void foo0();\n" +
aoqi@0	73	" descriptor: ()V\n" +
aoqi@0	74	" flags:\n" +
aoqi@0	75	" Code:\n" +
aoqi@0	76	" stack=0, locals=1, args_size=1\n" +
aoqi@0	77	" 0: return\n" +
aoqi@0	78	" LineNumberTable:\n" +
aoqi@0	79	" line 4: 0").replaceAll(" +", " ");
aoqi@0	80
aoqi@0	81	static final String foo2_expected =
aoqi@0	82	(" void foo2(int, int);\n" +
aoqi@0	83	" descriptor: (II)V\n" +
aoqi@0	84	" flags:\n" +
aoqi@0	85	" Code:\n" +
aoqi@0	86	" stack=0, locals=3, args_size=3\n" +
aoqi@0	87	" 0: return\n" +
aoqi@0	88	" LineNumberTable:\n" +
aoqi@0	89	" line 5: 0\n" +
aoqi@0	90	" MethodParameters:\n" +
aoqi@0	91	" Name Flags\n" +
aoqi@0	92	" j\n" +
aoqi@0	93	" k").replaceAll(" +", " ");
aoqi@0	94
aoqi@0	95	static final File classesdir = new File("methodparameters");
aoqi@0	96	static final String separator = System.getProperty("line.separator");
aoqi@0	97
aoqi@0	98	public static void main(String... args) throws Exception {
aoqi@0	99	new MethodParameters().run();
aoqi@0	100	}
aoqi@0	101
aoqi@0	102	void run() throws Exception {
aoqi@0	103	classesdir.mkdir();
aoqi@0	104	final File Foo_java =
aoqi@0	105	writeFile(classesdir, Foo_name + ".java", Foo_contents);
aoqi@0	106	compile("-parameters", "-d", classesdir.getPath(), Foo_java.getPath());
aoqi@0	107	System.out.println("Run javap");
aoqi@0	108	String output =
aoqi@0	109	javap("-c", "-verbose", "-classpath",
aoqi@0	110	classesdir.getPath(), Foo_name);
aoqi@0	111	String normalized =
aoqi@0	112	output.replaceAll(separator, "\n").replaceAll(" +", " ");
aoqi@0	113
aoqi@0	114	if (!normalized.contains(Init0_expected))
aoqi@0	115	error("Bad output for zero-parameter constructor. Expected\n" +
aoqi@0	116	Init0_expected + "\n" + "but got\n" + normalized);
aoqi@0	117	if (!normalized.contains(Init1_expected))
aoqi@0	118	error("Bad output for one-parameter constructor. Expected\n" +
aoqi@0	119	Init1_expected + "\n" + "but got\n" + normalized);
aoqi@0	120	if (!normalized.contains(foo0_expected))
aoqi@0	121	error("Bad output for zero-parameter method. Expected\n" +
aoqi@0	122	foo0_expected + "\n" + "but got\n" + normalized);
aoqi@0	123	if (!normalized.contains(foo2_expected))
aoqi@0	124	error("Bad output for two-parameter method Expected\n" +
aoqi@0	125	foo2_expected + "\n" + "but got\n" + normalized);
aoqi@0	126
aoqi@0	127	if (0 != errors)
aoqi@0	128	throw new Exception("MethodParameters test failed with " +
aoqi@0	129	errors + " errors");
aoqi@0	130	}
aoqi@0	131
aoqi@0	132	String javap(String... args) {
aoqi@0	133	StringWriter sw = new StringWriter();
aoqi@0	134	PrintWriter out = new PrintWriter(sw);
aoqi@0	135	//sun.tools.javap.Main.entry(args);
aoqi@0	136	int rc = com.sun.tools.javap.Main.run(args, out);
aoqi@0	137	if (rc != 0)
aoqi@0	138	throw new Error("javap failed. rc=" + rc);
aoqi@0	139	out.close();
aoqi@0	140	System.out.println(sw);
aoqi@0	141	return sw.toString();
aoqi@0	142	}
aoqi@0	143
aoqi@0	144	String compile(String... args) throws Exception {
aoqi@0	145	System.err.println("compile: " + Arrays.asList(args));
aoqi@0	146	StringWriter sw = new StringWriter();
aoqi@0	147	PrintWriter pw = new PrintWriter(sw);
aoqi@0	148	int rc = com.sun.tools.javac.Main.compile(args, pw);
aoqi@0	149	pw.close();
aoqi@0	150	String out = sw.toString();
aoqi@0	151	if (out.length() > 0)
aoqi@0	152	System.err.println(out);
aoqi@0	153	if (rc != 0)
aoqi@0	154	error("compilation failed, rc=" + rc);
aoqi@0	155	return out;
aoqi@0	156	}
aoqi@0	157
aoqi@0	158	File writeFile(File dir, String path, String body) throws IOException {
aoqi@0	159	File f = new File(dir, path);
aoqi@0	160	f.getParentFile().mkdirs();
aoqi@0	161	FileWriter out = new FileWriter(f);
aoqi@0	162	out.write(body);
aoqi@0	163	out.close();
aoqi@0	164	return f;
aoqi@0	165	}
aoqi@0	166
aoqi@0	167	void error(String msg) {
aoqi@0	168	System.err.println("Error: " + msg);
aoqi@0	169	errors++;
aoqi@0	170	}
aoqi@0	171
aoqi@0	172	int errors;
aoqi@0	173
aoqi@0	174	}