--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/lambda/TestLambdaToMethodStats.java Mon Jun 10 15:57:32 2013 +0100
@@ -0,0 +1,192 @@
+/*
+ * 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;
+ }
+ }
+ }
+}