1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javap/MethodParameters.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,174 @@
1.4 +/*
1.5 + * Copyright (c) 2010, 2014, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/*
1.28 + * @test
1.29 + * @bug 8004727 8005647
1.30 + * @summary javac should generate method parameters correctly.
1.31 + */
1.32 +
1.33 +import java.io.*;
1.34 +import java.util.*;
1.35 +
1.36 +public class MethodParameters {
1.37 +
1.38 + static final String Foo_name = "Foo";
1.39 + static final String Foo_contents =
1.40 + ("public class Foo {\n" +
1.41 + " Foo() {}\n" +
1.42 + " Foo(int i) {}\n" +
1.43 + " void foo0() {}\n" +
1.44 + " void foo2(int j, int k) {}\n" +
1.45 + "}").replaceAll(" +", " ");
1.46 +
1.47 + static final String Init0_expected =
1.48 + (" Foo();\n" +
1.49 + " descriptor: ()V\n" +
1.50 + " flags:\n" +
1.51 + " Code:\n" +
1.52 + " stack=1, locals=1, args_size=1\n" +
1.53 + " 0: aload_0\n" +
1.54 + " 1: invokespecial #1 // Method java/lang/Object.\"<init>\":()V\n" +
1.55 + " 4: return\n" +
1.56 + " LineNumberTable:\n" +
1.57 + " line 2: 0").replaceAll(" +", " ");
1.58 +
1.59 + static final String Init1_expected =
1.60 + (" Foo(int);\n" +
1.61 + " descriptor: (I)V\n" +
1.62 + " flags:\n" +
1.63 + " Code:\n" +
1.64 + " stack=1, locals=2, args_size=2\n" +
1.65 + " 0: aload_0\n" +
1.66 + " 1: invokespecial #1 // Method java/lang/Object.\"<init>\":()V\n" +
1.67 + " 4: return\n" +
1.68 + " LineNumberTable:\n" +
1.69 + " line 3: 0\n" +
1.70 + " MethodParameters:\n" +
1.71 + " Name Flags\n" +
1.72 + " i").replaceAll(" +", " ");
1.73 +
1.74 + static final String foo0_expected =
1.75 + (" void foo0();\n" +
1.76 + " descriptor: ()V\n" +
1.77 + " flags:\n" +
1.78 + " Code:\n" +
1.79 + " stack=0, locals=1, args_size=1\n" +
1.80 + " 0: return\n" +
1.81 + " LineNumberTable:\n" +
1.82 + " line 4: 0").replaceAll(" +", " ");
1.83 +
1.84 + static final String foo2_expected =
1.85 + (" void foo2(int, int);\n" +
1.86 + " descriptor: (II)V\n" +
1.87 + " flags:\n" +
1.88 + " Code:\n" +
1.89 + " stack=0, locals=3, args_size=3\n" +
1.90 + " 0: return\n" +
1.91 + " LineNumberTable:\n" +
1.92 + " line 5: 0\n" +
1.93 + " MethodParameters:\n" +
1.94 + " Name Flags\n" +
1.95 + " j\n" +
1.96 + " k").replaceAll(" +", " ");
1.97 +
1.98 + static final File classesdir = new File("methodparameters");
1.99 + static final String separator = System.getProperty("line.separator");
1.100 +
1.101 + public static void main(String... args) throws Exception {
1.102 + new MethodParameters().run();
1.103 + }
1.104 +
1.105 + void run() throws Exception {
1.106 + classesdir.mkdir();
1.107 + final File Foo_java =
1.108 + writeFile(classesdir, Foo_name + ".java", Foo_contents);
1.109 + compile("-parameters", "-d", classesdir.getPath(), Foo_java.getPath());
1.110 + System.out.println("Run javap");
1.111 + String output =
1.112 + javap("-c", "-verbose", "-classpath",
1.113 + classesdir.getPath(), Foo_name);
1.114 + String normalized =
1.115 + output.replaceAll(separator, "\n").replaceAll(" +", " ");
1.116 +
1.117 + if (!normalized.contains(Init0_expected))
1.118 + error("Bad output for zero-parameter constructor. Expected\n" +
1.119 + Init0_expected + "\n" + "but got\n" + normalized);
1.120 + if (!normalized.contains(Init1_expected))
1.121 + error("Bad output for one-parameter constructor. Expected\n" +
1.122 + Init1_expected + "\n" + "but got\n" + normalized);
1.123 + if (!normalized.contains(foo0_expected))
1.124 + error("Bad output for zero-parameter method. Expected\n" +
1.125 + foo0_expected + "\n" + "but got\n" + normalized);
1.126 + if (!normalized.contains(foo2_expected))
1.127 + error("Bad output for two-parameter method Expected\n" +
1.128 + foo2_expected + "\n" + "but got\n" + normalized);
1.129 +
1.130 + if (0 != errors)
1.131 + throw new Exception("MethodParameters test failed with " +
1.132 + errors + " errors");
1.133 + }
1.134 +
1.135 + String javap(String... args) {
1.136 + StringWriter sw = new StringWriter();
1.137 + PrintWriter out = new PrintWriter(sw);
1.138 + //sun.tools.javap.Main.entry(args);
1.139 + int rc = com.sun.tools.javap.Main.run(args, out);
1.140 + if (rc != 0)
1.141 + throw new Error("javap failed. rc=" + rc);
1.142 + out.close();
1.143 + System.out.println(sw);
1.144 + return sw.toString();
1.145 + }
1.146 +
1.147 + String compile(String... args) throws Exception {
1.148 + System.err.println("compile: " + Arrays.asList(args));
1.149 + StringWriter sw = new StringWriter();
1.150 + PrintWriter pw = new PrintWriter(sw);
1.151 + int rc = com.sun.tools.javac.Main.compile(args, pw);
1.152 + pw.close();
1.153 + String out = sw.toString();
1.154 + if (out.length() > 0)
1.155 + System.err.println(out);
1.156 + if (rc != 0)
1.157 + error("compilation failed, rc=" + rc);
1.158 + return out;
1.159 + }
1.160 +
1.161 + File writeFile(File dir, String path, String body) throws IOException {
1.162 + File f = new File(dir, path);
1.163 + f.getParentFile().mkdirs();
1.164 + FileWriter out = new FileWriter(f);
1.165 + out.write(body);
1.166 + out.close();
1.167 + return f;
1.168 + }
1.169 +
1.170 + void error(String msg) {
1.171 + System.err.println("Error: " + msg);
1.172 + errors++;
1.173 + }
1.174 +
1.175 + int errors;
1.176 +
1.177 +}
