| /* |
| * Copyright (c) 2010, 2016, 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 |
| * @bug 8004727 8005647 |
| * @summary javac should generate method parameters correctly. |
| * @modules jdk.jdeps/com.sun.tools.javap |
| */ |
| |
| import java.io.*; |
| import java.util.*; |
| |
| public class MethodParameters { |
| |
| static final String Foo_name = "Foo"; |
| static final String Foo_contents = |
| ("public class Foo {\n" + |
| " Foo() {}\n" + |
| " Foo(int i) {}\n" + |
| " void foo0() {}\n" + |
| " void foo2(int j, int k) {}\n" + |
| "}").replaceAll(" +", " "); |
| |
| static final String Init0_expected = |
| (" Foo();\n" + |
| " descriptor: ()V\n" + |
| " flags: (0x0000)\n" + |
| " Code:\n" + |
| " stack=1, locals=1, args_size=1\n" + |
| " 0: aload_0\n" + |
| " 1: invokespecial #1 // Method java/lang/Object.\"<init>\":()V\n" + |
| " 4: return\n" + |
| " LineNumberTable:\n" + |
| " line 2: 0").replaceAll(" +", " "); |
| |
| static final String Init1_expected = |
| (" Foo(int);\n" + |
| " descriptor: (I)V\n" + |
| " flags: (0x0000)\n" + |
| " Code:\n" + |
| " stack=1, locals=2, args_size=2\n" + |
| " 0: aload_0\n" + |
| " 1: invokespecial #1 // Method java/lang/Object.\"<init>\":()V\n" + |
| " 4: return\n" + |
| " LineNumberTable:\n" + |
| " line 3: 0\n" + |
| " MethodParameters:\n" + |
| " Name Flags\n" + |
| " i").replaceAll(" +", " "); |
| |
| static final String foo0_expected = |
| (" void foo0();\n" + |
| " descriptor: ()V\n" + |
| " flags: (0x0000)\n" + |
| " Code:\n" + |
| " stack=0, locals=1, args_size=1\n" + |
| " 0: return\n" + |
| " LineNumberTable:\n" + |
| " line 4: 0").replaceAll(" +", " "); |
| |
| static final String foo2_expected = |
| (" void foo2(int, int);\n" + |
| " descriptor: (II)V\n" + |
| " flags: (0x0000)\n" + |
| " Code:\n" + |
| " stack=0, locals=3, args_size=3\n" + |
| " 0: return\n" + |
| " LineNumberTable:\n" + |
| " line 5: 0\n" + |
| " MethodParameters:\n" + |
| " Name Flags\n" + |
| " j\n" + |
| " k").replaceAll(" +", " "); |
| |
| static final File classesdir = new File("methodparameters"); |
| static final String separator = System.getProperty("line.separator"); |
| |
| public static void main(String... args) throws Exception { |
| new MethodParameters().run(); |
| } |
| |
| void run() throws Exception { |
| classesdir.mkdir(); |
| final File Foo_java = |
| writeFile(classesdir, Foo_name + ".java", Foo_contents); |
| compile("-parameters", "-d", classesdir.getPath(), Foo_java.getPath()); |
| System.out.println("Run javap"); |
| String output = |
| javap("-c", "-verbose", "-classpath", |
| classesdir.getPath(), Foo_name); |
| String normalized = |
| output.replaceAll(separator, "\n").replaceAll(" +", " "); |
| |
| if (!normalized.contains(Init0_expected)) |
| error("Bad output for zero-parameter constructor. Expected\n" + |
| Init0_expected + "\n" + "but got\n" + normalized); |
| if (!normalized.contains(Init1_expected)) |
| error("Bad output for one-parameter constructor. Expected\n" + |
| Init1_expected + "\n" + "but got\n" + normalized); |
| if (!normalized.contains(foo0_expected)) |
| error("Bad output for zero-parameter method. Expected\n" + |
| foo0_expected + "\n" + "but got\n" + normalized); |
| if (!normalized.contains(foo2_expected)) |
| error("Bad output for two-parameter method Expected\n" + |
| foo2_expected + "\n" + "but got\n" + normalized); |
| |
| if (0 != errors) |
| throw new Exception("MethodParameters test failed with " + |
| errors + " errors"); |
| } |
| |
| String javap(String... args) { |
| StringWriter sw = new StringWriter(); |
| PrintWriter out = new PrintWriter(sw); |
| //sun.tools.javap.Main.entry(args); |
| int rc = com.sun.tools.javap.Main.run(args, out); |
| if (rc != 0) |
| throw new Error("javap failed. rc=" + rc); |
| out.close(); |
| System.out.println(sw); |
| return sw.toString(); |
| } |
| |
| String compile(String... args) throws Exception { |
| System.err.println("compile: " + Arrays.asList(args)); |
| StringWriter sw = new StringWriter(); |
| PrintWriter pw = new PrintWriter(sw); |
| int rc = com.sun.tools.javac.Main.compile(args, pw); |
| pw.close(); |
| String out = sw.toString(); |
| if (out.length() > 0) |
| System.err.println(out); |
| if (rc != 0) |
| error("compilation failed, rc=" + rc); |
| return out; |
| } |
| |
| File writeFile(File dir, String path, String body) throws IOException { |
| File f = new File(dir, path); |
| f.getParentFile().mkdirs(); |
| FileWriter out = new FileWriter(f); |
| out.write(body); |
| out.close(); |
| return f; |
| } |
| |
| void error(String msg) { |
| System.err.println("Error: " + msg); |
| errors++; |
| } |
| |
| int errors; |
| |
| } |