Thu, 07 Mar 2013 10:04:28 +0000
8009138: javac, equals-hashCode warning tuning
Reviewed-by: mcimadamore
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2012, 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 8003280 |
aoqi@0 | 27 | * @summary Add lambda tests |
aoqi@0 | 28 | * compile crashes on partial lambda expressions |
aoqi@0 | 29 | */ |
aoqi@0 | 30 | |
aoqi@0 | 31 | import com.sun.source.util.JavacTask; |
aoqi@0 | 32 | import java.net.URI; |
aoqi@0 | 33 | import java.util.Arrays; |
aoqi@0 | 34 | import javax.tools.Diagnostic; |
aoqi@0 | 35 | import javax.tools.JavaCompiler; |
aoqi@0 | 36 | import javax.tools.JavaFileObject; |
aoqi@0 | 37 | import javax.tools.SimpleJavaFileObject; |
aoqi@0 | 38 | import javax.tools.StandardJavaFileManager; |
aoqi@0 | 39 | import javax.tools.ToolProvider; |
aoqi@0 | 40 | |
aoqi@0 | 41 | |
aoqi@0 | 42 | public class BadLambdaExpr { |
aoqi@0 | 43 | |
aoqi@0 | 44 | static int checkCount = 0; |
aoqi@0 | 45 | |
aoqi@0 | 46 | enum ParameterListKind { |
aoqi@0 | 47 | ZERO_ARY("()"), |
aoqi@0 | 48 | UNARY("(#P)"), |
aoqi@0 | 49 | TWO_ARY("(#P, #P)"), |
aoqi@0 | 50 | THREE_ARY("(#P, #P, #P)"); |
aoqi@0 | 51 | |
aoqi@0 | 52 | String parametersTemplateStr; |
aoqi@0 | 53 | |
aoqi@0 | 54 | ParameterListKind(String parametersTemplateStr) { |
aoqi@0 | 55 | this.parametersTemplateStr = parametersTemplateStr; |
aoqi@0 | 56 | } |
aoqi@0 | 57 | |
aoqi@0 | 58 | String getParameterString(ParameterKind pk) { |
aoqi@0 | 59 | return parametersTemplateStr.replaceAll("#P", pk.parameterStr); |
aoqi@0 | 60 | } |
aoqi@0 | 61 | } |
aoqi@0 | 62 | |
aoqi@0 | 63 | enum ParameterKind { |
aoqi@0 | 64 | IMPLICIT("a"), |
aoqi@0 | 65 | EXPLIICT("A a"); |
aoqi@0 | 66 | |
aoqi@0 | 67 | String parameterStr; |
aoqi@0 | 68 | |
aoqi@0 | 69 | ParameterKind(String parameterStr) { |
aoqi@0 | 70 | this.parameterStr = parameterStr; |
aoqi@0 | 71 | } |
aoqi@0 | 72 | } |
aoqi@0 | 73 | |
aoqi@0 | 74 | enum ArrowKind { |
aoqi@0 | 75 | NONE(""), |
aoqi@0 | 76 | SEMI("-"), |
aoqi@0 | 77 | FULL("->"); |
aoqi@0 | 78 | |
aoqi@0 | 79 | String arrowStr; |
aoqi@0 | 80 | |
aoqi@0 | 81 | ArrowKind(String arrowStr) { |
aoqi@0 | 82 | this.arrowStr = arrowStr; |
aoqi@0 | 83 | } |
aoqi@0 | 84 | } |
aoqi@0 | 85 | |
aoqi@0 | 86 | enum ExprKind { |
aoqi@0 | 87 | NONE("#P#A"), |
aoqi@0 | 88 | METHOD_CALL("m(#P#A)"), |
aoqi@0 | 89 | CONSTR_CALL("new Foo(#P#A)"); |
aoqi@0 | 90 | |
aoqi@0 | 91 | String expressionTemplate; |
aoqi@0 | 92 | |
aoqi@0 | 93 | ExprKind(String expressionTemplate) { |
aoqi@0 | 94 | this.expressionTemplate = expressionTemplate; |
aoqi@0 | 95 | } |
aoqi@0 | 96 | |
aoqi@0 | 97 | String expressionString(ParameterListKind plk, ParameterKind pk, |
aoqi@0 | 98 | ArrowKind ak) { |
aoqi@0 | 99 | return expressionTemplate.replaceAll("#P", plk.getParameterString(pk)) |
aoqi@0 | 100 | .replaceAll("#A", ak.arrowStr); |
aoqi@0 | 101 | } |
aoqi@0 | 102 | } |
aoqi@0 | 103 | |
aoqi@0 | 104 | public static void main(String... args) throws Exception { |
aoqi@0 | 105 | |
aoqi@0 | 106 | //create default shared JavaCompiler - reused across multiple compilations |
aoqi@0 | 107 | JavaCompiler comp = ToolProvider.getSystemJavaCompiler(); |
aoqi@0 | 108 | StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null); |
aoqi@0 | 109 | |
aoqi@0 | 110 | for (ParameterListKind plk : ParameterListKind.values()) { |
aoqi@0 | 111 | for (ParameterKind pk : ParameterKind.values()) { |
aoqi@0 | 112 | for (ArrowKind ak : ArrowKind.values()) { |
aoqi@0 | 113 | for (ExprKind ek : ExprKind.values()) { |
aoqi@0 | 114 | new BadLambdaExpr(plk, pk, ak, ek).run(comp, fm); |
aoqi@0 | 115 | } |
aoqi@0 | 116 | } |
aoqi@0 | 117 | } |
aoqi@0 | 118 | } |
aoqi@0 | 119 | System.out.println("Total check executed: " + checkCount); |
aoqi@0 | 120 | } |
aoqi@0 | 121 | |
aoqi@0 | 122 | ParameterListKind plk; |
aoqi@0 | 123 | ParameterKind pk; |
aoqi@0 | 124 | ArrowKind ak; |
aoqi@0 | 125 | ExprKind ek; |
aoqi@0 | 126 | JavaSource source; |
aoqi@0 | 127 | DiagnosticChecker diagChecker; |
aoqi@0 | 128 | |
aoqi@0 | 129 | BadLambdaExpr(ParameterListKind plk, ParameterKind pk, ArrowKind ak, ExprKind ek) { |
aoqi@0 | 130 | this.plk = plk; |
aoqi@0 | 131 | this.pk = pk; |
aoqi@0 | 132 | this.ak = ak; |
aoqi@0 | 133 | this.ek = ek; |
aoqi@0 | 134 | this.source = new JavaSource(); |
aoqi@0 | 135 | this.diagChecker = new DiagnosticChecker(); |
aoqi@0 | 136 | } |
aoqi@0 | 137 | |
aoqi@0 | 138 | class JavaSource extends SimpleJavaFileObject { |
aoqi@0 | 139 | |
aoqi@0 | 140 | String template = "class Test {\n" + |
aoqi@0 | 141 | " SAM s = #E;\n" + |
aoqi@0 | 142 | "}"; |
aoqi@0 | 143 | |
aoqi@0 | 144 | String source; |
aoqi@0 | 145 | |
aoqi@0 | 146 | public JavaSource() { |
aoqi@0 | 147 | super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); |
aoqi@0 | 148 | source = template.replaceAll("#E", ek.expressionString(plk, pk, ak)); |
aoqi@0 | 149 | } |
aoqi@0 | 150 | |
aoqi@0 | 151 | @Override |
aoqi@0 | 152 | public CharSequence getCharContent(boolean ignoreEncodingErrors) { |
aoqi@0 | 153 | return source; |
aoqi@0 | 154 | } |
aoqi@0 | 155 | } |
aoqi@0 | 156 | |
aoqi@0 | 157 | void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception { |
aoqi@0 | 158 | JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker, |
aoqi@0 | 159 | null, null, Arrays.asList(source)); |
aoqi@0 | 160 | try { |
aoqi@0 | 161 | ct.parse(); |
aoqi@0 | 162 | } catch (Throwable ex) { |
aoqi@0 | 163 | throw new AssertionError("Error thron when parsing the following source:\n" + source.getCharContent(true)); |
aoqi@0 | 164 | } |
aoqi@0 | 165 | check(); |
aoqi@0 | 166 | } |
aoqi@0 | 167 | |
aoqi@0 | 168 | void check() { |
aoqi@0 | 169 | boolean errorExpected = |
aoqi@0 | 170 | ak != ArrowKind.NONE || |
aoqi@0 | 171 | plk != ParameterListKind.UNARY || |
aoqi@0 | 172 | pk != ParameterKind.IMPLICIT; |
aoqi@0 | 173 | if (errorExpected != diagChecker.errorFound) { |
aoqi@0 | 174 | throw new Error("bad diag for source:\n" + |
aoqi@0 | 175 | source.getCharContent(true)); |
aoqi@0 | 176 | } |
aoqi@0 | 177 | checkCount++; |
aoqi@0 | 178 | } |
aoqi@0 | 179 | |
aoqi@0 | 180 | static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> { |
aoqi@0 | 181 | |
aoqi@0 | 182 | boolean errorFound; |
aoqi@0 | 183 | |
aoqi@0 | 184 | @Override |
aoqi@0 | 185 | public void report(Diagnostic<? extends JavaFileObject> diagnostic) { |
aoqi@0 | 186 | if (diagnostic.getKind() == Diagnostic.Kind.ERROR) { |
aoqi@0 | 187 | errorFound = true; |
aoqi@0 | 188 | } |
aoqi@0 | 189 | } |
aoqi@0 | 190 | } |
aoqi@0 | 191 | } |