Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javap/TestSuperclass.java
test/tools/javap/TestSuperclass.java
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| 1 /* | |
| 2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 */ | |
| 23 | |
| 24 /* | |
| 25 * @test | |
| 26 * @bug 7031005 | |
| 27 * @summary javap prints "extends java.lang.Object" | |
| 28 */ | |
| 29 | |
| 30 import java.io.File; | |
| 31 import java.io.IOException; | |
| 32 import java.io.PrintWriter; | |
| 33 import java.io.StringWriter; | |
| 34 import java.net.URI; | |
| 35 import java.util.Arrays; | |
| 36 import javax.tools.JavaCompiler; | |
| 37 import javax.tools.JavaCompiler.CompilationTask; | |
| 38 import javax.tools.JavaFileObject; | |
| 39 import javax.tools.SimpleJavaFileObject; | |
| 40 import javax.tools.StandardJavaFileManager; | |
| 41 import javax.tools.StandardLocation; | |
| 42 import javax.tools.ToolProvider; | |
| 43 | |
| 44 public class TestSuperclass { | |
| 45 enum ClassKind { | |
| 46 CLASS("class"), | |
| 47 INTERFACE("interface"); | |
| 48 ClassKind(String keyword) { | |
| 49 this.keyword = keyword; | |
| 50 } | |
| 51 final String keyword; | |
| 52 } | |
| 53 | |
| 54 enum GenericKind { | |
| 55 NO(""), | |
| 56 YES("<T>"); | |
| 57 GenericKind(String typarams) { | |
| 58 this.typarams = typarams; | |
| 59 } | |
| 60 final String typarams; | |
| 61 } | |
| 62 | |
| 63 enum SuperKind { | |
| 64 NONE(null), | |
| 65 SUPER("Super"); | |
| 66 SuperKind(String name) { | |
| 67 this.name = name; | |
| 68 } | |
| 69 String extend() { | |
| 70 return (name == null) ? "" : "extends " + name; | |
| 71 } | |
| 72 String decl(ClassKind ck) { | |
| 73 return (name == null) ? "" : ck.keyword + " " + name + " { }"; | |
| 74 } | |
| 75 final String name; | |
| 76 } | |
| 77 | |
| 78 public static void main(String... args) throws Exception { | |
| 79 JavaCompiler comp = ToolProvider.getSystemJavaCompiler(); | |
| 80 StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null); | |
| 81 int errors = 0; | |
| 82 | |
| 83 for (ClassKind ck: ClassKind.values()) { | |
| 84 for (GenericKind gk: GenericKind.values()) { | |
| 85 for (SuperKind sk: SuperKind.values()) { | |
| 86 errors += new TestSuperclass(ck, gk, sk).run(comp, fm); | |
| 87 } | |
| 88 } | |
| 89 } | |
| 90 | |
| 91 if (errors > 0) | |
| 92 throw new Exception(errors + " errors found"); | |
| 93 } | |
| 94 | |
| 95 final ClassKind ck; | |
| 96 final GenericKind gk; | |
| 97 final SuperKind sk; | |
| 98 | |
| 99 TestSuperclass(ClassKind ck, GenericKind gk, SuperKind sk) { | |
| 100 this.ck = ck; | |
| 101 this.gk = gk; | |
| 102 this.sk = sk; | |
| 103 } | |
| 104 | |
| 105 int run(JavaCompiler comp, StandardJavaFileManager fm) throws IOException { | |
| 106 System.err.println("test: ck:" + ck + " gk:" + gk + " sk:" + sk); | |
| 107 File testDir = new File(ck + "-" + gk + "-" + sk); | |
| 108 testDir.mkdirs(); | |
| 109 fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(testDir)); | |
| 110 | |
| 111 JavaSource js = new JavaSource(); | |
| 112 System.err.println(js.getCharContent(false)); | |
| 113 CompilationTask t = comp.getTask(null, fm, null, null, null, Arrays.asList(js)); | |
| 114 if (!t.call()) | |
| 115 throw new Error("compilation failed"); | |
| 116 | |
| 117 File testClass = new File(testDir, "Test.class"); | |
| 118 String out = javap(testClass); | |
| 119 | |
| 120 // Extract class sig from first line of Java source | |
| 121 String expect = js.source.replaceAll("(?s)^(.* Test[^{]+?) *\\{.*", "$1"); | |
| 122 | |
| 123 // Extract class sig from line from javap output | |
| 124 String found = out.replaceAll("(?s).*\n(.* Test[^{]+?) *\\{.*", "$1"); | |
| 125 | |
| 126 checkEqual("class signature", expect, found); | |
| 127 | |
| 128 return errors; | |
| 129 } | |
| 130 | |
| 131 String javap(File file) { | |
| 132 StringWriter sw = new StringWriter(); | |
| 133 PrintWriter pw = new PrintWriter(sw); | |
| 134 String[] args = { file.getPath() }; | |
| 135 int rc = com.sun.tools.javap.Main.run(args, pw); | |
| 136 pw.close(); | |
| 137 String out = sw.toString(); | |
| 138 if (!out.isEmpty()) | |
| 139 System.err.println(out); | |
| 140 if (rc != 0) | |
| 141 throw new Error("javap failed: rc=" + rc); | |
| 142 return out; | |
| 143 } | |
| 144 | |
| 145 void checkEqual(String label, String expect, String found) { | |
| 146 if (!expect.equals(found)) | |
| 147 error("Unexpected " + label + " found: '" + found + "', expected: '" + expect + "'"); | |
| 148 } | |
| 149 | |
| 150 void error(String msg) { | |
| 151 System.err.println("Error: " + msg); | |
| 152 errors++; | |
| 153 } | |
| 154 | |
| 155 int errors; | |
| 156 | |
| 157 class JavaSource extends SimpleJavaFileObject { | |
| 158 static final String template = | |
| 159 "#CK Test#GK #EK { }\n" | |
| 160 + "#SK\n"; | |
| 161 final String source; | |
| 162 | |
| 163 public JavaSource() { | |
| 164 super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); | |
| 165 source = template | |
| 166 .replace("#CK", ck.keyword) | |
| 167 .replace("#GK", gk.typarams) | |
| 168 .replace("#EK", sk.extend()) | |
| 169 .replace("#SK", sk.decl(ck)); | |
| 170 } | |
| 171 | |
| 172 @Override | |
| 173 public CharSequence getCharContent(boolean ignoreEncodingErrors) { | |
| 174 return source; | |
| 175 } | |
| 176 } | |
| 177 | |
| 178 } |
