1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/lambda/TestLambdaToMethodStats.java Mon Jun 10 15:57:32 2013 +0100
1.3 @@ -0,0 +1,192 @@
1.4 +/*
1.5 + * Copyright (c) 2013, 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 8013576
1.30 + * @summary Add stat support to LambdaToMethod
1.31 + * @library ../lib
1.32 + * @build JavacTestingAbstractThreadedTest
1.33 + * @run main/othervm TestLambdaToMethodStats
1.34 + */
1.35 +
1.36 +// use /othervm to avoid jtreg timeout issues (CODETOOLS-7900047)
1.37 +// see JDK-8006746
1.38 +
1.39 +import java.net.URI;
1.40 +import java.util.Arrays;
1.41 +
1.42 +import javax.tools.Diagnostic;
1.43 +import javax.tools.JavaFileObject;
1.44 +import javax.tools.SimpleJavaFileObject;
1.45 +
1.46 +import com.sun.source.util.JavacTask;
1.47 +import com.sun.tools.javac.api.ClientCodeWrapper;
1.48 +import com.sun.tools.javac.util.JCDiagnostic;
1.49 +
1.50 +public class TestLambdaToMethodStats
1.51 + extends JavacTestingAbstractThreadedTest
1.52 + implements Runnable {
1.53 +
1.54 + enum ExprKind {
1.55 + LAMBDA("()->null"),
1.56 + MREF1("this::g"),
1.57 + MREF2("this::h");
1.58 +
1.59 + String exprStr;
1.60 +
1.61 + ExprKind(String exprStr) {
1.62 + this.exprStr = exprStr;
1.63 + }
1.64 + }
1.65 +
1.66 + enum TargetKind {
1.67 + IMPLICIT(""),
1.68 + SERIALIZABLE("(A & java.io.Serializable)");
1.69 +
1.70 + String targetStr;
1.71 +
1.72 + TargetKind(String targetStr) {
1.73 + this.targetStr = targetStr;
1.74 + }
1.75 + }
1.76 +
1.77 + public static void main(String... args) throws Exception {
1.78 + for (ExprKind ek : ExprKind.values()) {
1.79 + for (TargetKind tk : TargetKind.values()) {
1.80 + pool.execute(new TestLambdaToMethodStats(ek, tk));
1.81 + }
1.82 + }
1.83 +
1.84 + checkAfterExec(true);
1.85 + }
1.86 +
1.87 + ExprKind ek;
1.88 + TargetKind tk;
1.89 + JavaSource source;
1.90 + DiagnosticChecker diagChecker;
1.91 +
1.92 +
1.93 + TestLambdaToMethodStats(ExprKind ek, TargetKind tk) {
1.94 + this.ek = ek;
1.95 + this.tk = tk;
1.96 + this.source = new JavaSource();
1.97 + this.diagChecker = new DiagnosticChecker();
1.98 + }
1.99 +
1.100 + class JavaSource extends SimpleJavaFileObject {
1.101 +
1.102 + String template = "interface A {\n" +
1.103 + " Object o();\n" +
1.104 + "}\n" +
1.105 + "class Test {\n" +
1.106 + " A a = #C#E;\n" +
1.107 + " Object g() { return null; }\n" +
1.108 + " Object h(Object... o) { return null; }\n" +
1.109 + "}";
1.110 +
1.111 + String source;
1.112 +
1.113 + public JavaSource() {
1.114 + super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
1.115 + source = template.replaceAll("#E", ek.exprStr)
1.116 + .replaceAll("#C", tk.targetStr);
1.117 + }
1.118 +
1.119 + @Override
1.120 + public CharSequence getCharContent(boolean ignoreEncodingErrors) {
1.121 + return source;
1.122 + }
1.123 + }
1.124 +
1.125 + public void run() {
1.126 + JavacTask ct = (JavacTask)comp.getTask(null, fm.get(), diagChecker,
1.127 + Arrays.asList("-XDdumpLambdaToMethodStats"),
1.128 + null, Arrays.asList(source));
1.129 + try {
1.130 + ct.generate();
1.131 + } catch (Throwable ex) {
1.132 + throw new
1.133 + AssertionError("Error thron when analyzing the following source:\n" +
1.134 + source.getCharContent(true));
1.135 + }
1.136 + check();
1.137 + }
1.138 +
1.139 + void check() {
1.140 + checkCount.incrementAndGet();
1.141 +
1.142 + boolean error = diagChecker.lambda !=
1.143 + (ek == ExprKind.LAMBDA);
1.144 +
1.145 + error |= diagChecker.bridge !=
1.146 + (ek == ExprKind.MREF2);
1.147 +
1.148 + error |= diagChecker.altMetafactory !=
1.149 + (tk == TargetKind.SERIALIZABLE);
1.150 +
1.151 + if (error) {
1.152 + throw new AssertionError("Bad stat diagnostic found for source\n" +
1.153 + "lambda = " + diagChecker.lambda + "\n" +
1.154 + "bridge = " + diagChecker.bridge + "\n" +
1.155 + "altMF = " + diagChecker.altMetafactory + "\n" +
1.156 + source.source);
1.157 + }
1.158 + }
1.159 +
1.160 + static class DiagnosticChecker
1.161 + implements javax.tools.DiagnosticListener<JavaFileObject> {
1.162 +
1.163 + boolean altMetafactory;
1.164 + boolean bridge;
1.165 + boolean lambda;
1.166 +
1.167 + public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
1.168 + try {
1.169 + if (diagnostic.getKind() == Diagnostic.Kind.NOTE) {
1.170 + switch (diagnostic.getCode()) {
1.171 + case "compiler.note.lambda.stat":
1.172 + lambda = true;
1.173 + break;
1.174 + case "compiler.note.mref.stat":
1.175 + lambda = false;
1.176 + bridge = false;
1.177 + break;
1.178 + case "compiler.note.mref.stat.1":
1.179 + lambda = false;
1.180 + bridge = true;
1.181 + break;
1.182 + default:
1.183 + throw new AssertionError("unexpected note: " + diagnostic.getCode());
1.184 + }
1.185 + ClientCodeWrapper.DiagnosticSourceUnwrapper dsu =
1.186 + (ClientCodeWrapper.DiagnosticSourceUnwrapper)diagnostic;
1.187 + altMetafactory = (Boolean)dsu.d.getArgs()[0];
1.188 + }
1.189 + } catch (RuntimeException t) {
1.190 + t.printStackTrace();
1.191 + throw t;
1.192 + }
1.193 + }
1.194 + }
1.195 +}
