| /* |
| * Copyright (c) 2013, 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 8013576 |
| * @summary Add stat support to LambdaToMethod |
| * @library ../lib |
| * @build JavacTestingAbstractThreadedTest |
| * @run main/othervm TestLambdaToMethodStats |
| */ |
| |
| // use /othervm to avoid jtreg timeout issues (CODETOOLS-7900047) |
| // see JDK-8006746 |
| |
| import java.net.URI; |
| import java.util.Arrays; |
| |
| import javax.tools.Diagnostic; |
| import javax.tools.JavaFileObject; |
| import javax.tools.SimpleJavaFileObject; |
| |
| import com.sun.source.util.JavacTask; |
| import com.sun.tools.javac.api.ClientCodeWrapper; |
| import com.sun.tools.javac.util.JCDiagnostic; |
| |
| public class TestLambdaToMethodStats |
| extends JavacTestingAbstractThreadedTest |
| implements Runnable { |
| |
| enum ExprKind { |
| LAMBDA("()->null"), |
| MREF1("this::g"), |
| MREF2("this::h"); |
| |
| String exprStr; |
| |
| ExprKind(String exprStr) { |
| this.exprStr = exprStr; |
| } |
| } |
| |
| enum TargetKind { |
| IMPLICIT(""), |
| SERIALIZABLE("(A & java.io.Serializable)"); |
| |
| String targetStr; |
| |
| TargetKind(String targetStr) { |
| this.targetStr = targetStr; |
| } |
| } |
| |
| public static void main(String... args) throws Exception { |
| for (ExprKind ek : ExprKind.values()) { |
| for (TargetKind tk : TargetKind.values()) { |
| pool.execute(new TestLambdaToMethodStats(ek, tk)); |
| } |
| } |
| |
| checkAfterExec(true); |
| } |
| |
| ExprKind ek; |
| TargetKind tk; |
| JavaSource source; |
| DiagnosticChecker diagChecker; |
| |
| |
| TestLambdaToMethodStats(ExprKind ek, TargetKind tk) { |
| this.ek = ek; |
| this.tk = tk; |
| this.source = new JavaSource(); |
| this.diagChecker = new DiagnosticChecker(); |
| } |
| |
| class JavaSource extends SimpleJavaFileObject { |
| |
| String template = "interface A {\n" + |
| " Object o();\n" + |
| "}\n" + |
| "class Test {\n" + |
| " A a = #C#E;\n" + |
| " Object g() { return null; }\n" + |
| " Object h(Object... o) { return null; }\n" + |
| "}"; |
| |
| String source; |
| |
| public JavaSource() { |
| super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE); |
| source = template.replaceAll("#E", ek.exprStr) |
| .replaceAll("#C", tk.targetStr); |
| } |
| |
| @Override |
| public CharSequence getCharContent(boolean ignoreEncodingErrors) { |
| return source; |
| } |
| } |
| |
| public void run() { |
| JavacTask ct = (JavacTask)comp.getTask(null, fm.get(), diagChecker, |
| Arrays.asList("-XDdumpLambdaToMethodStats"), |
| null, Arrays.asList(source)); |
| try { |
| ct.generate(); |
| } catch (Throwable ex) { |
| throw new |
| AssertionError("Error thron when analyzing the following source:\n" + |
| source.getCharContent(true)); |
| } |
| check(); |
| } |
| |
| void check() { |
| checkCount.incrementAndGet(); |
| |
| boolean error = diagChecker.lambda != |
| (ek == ExprKind.LAMBDA); |
| |
| error |= diagChecker.bridge != |
| (ek == ExprKind.MREF2); |
| |
| error |= diagChecker.altMetafactory != |
| (tk == TargetKind.SERIALIZABLE); |
| |
| if (error) { |
| throw new AssertionError("Bad stat diagnostic found for source\n" + |
| "lambda = " + diagChecker.lambda + "\n" + |
| "bridge = " + diagChecker.bridge + "\n" + |
| "altMF = " + diagChecker.altMetafactory + "\n" + |
| source.source); |
| } |
| } |
| |
| static class DiagnosticChecker |
| implements javax.tools.DiagnosticListener<JavaFileObject> { |
| |
| boolean altMetafactory; |
| boolean bridge; |
| boolean lambda; |
| |
| public void report(Diagnostic<? extends JavaFileObject> diagnostic) { |
| try { |
| if (diagnostic.getKind() == Diagnostic.Kind.NOTE) { |
| switch (diagnostic.getCode()) { |
| case "compiler.note.lambda.stat": |
| lambda = true; |
| break; |
| case "compiler.note.mref.stat": |
| lambda = false; |
| bridge = false; |
| break; |
| case "compiler.note.mref.stat.1": |
| lambda = false; |
| bridge = true; |
| break; |
| default: |
| throw new AssertionError("unexpected note: " + diagnostic.getCode()); |
| } |
| ClientCodeWrapper.DiagnosticSourceUnwrapper dsu = |
| (ClientCodeWrapper.DiagnosticSourceUnwrapper)diagnostic; |
| altMetafactory = (Boolean)dsu.d.getArgs()[0]; |
| } |
| } catch (RuntimeException t) { |
| t.printStackTrace(); |
| throw t; |
| } |
| } |
| } |
| } |