--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javap/MethodParameters.java Sat Dec 29 17:33:17 2012 -0800
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 2010, 2012, 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 javac should generate method parameters correctly.
+ */
+
+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" +
+ " flags: \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" +
+ " flags: \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" +
+ " flags: \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" +
+ " flags: \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;
+
+}