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/*
* Copyright (c) 2013, 2016, 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 8129962
* @summary Add stat support to LambdaToMethod
* @library /tools/javac/lib
* @modules jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.code
* jdk.compiler/com.sun.tools.javac.comp
* jdk.compiler/com.sun.tools.javac.main
* jdk.compiler/com.sun.tools.javac.tree
* jdk.compiler/com.sun.tools.javac.util
* @build combo.ComboTestHelper
* @run main TestLambdaToMethodStats
*/
import java.io.IOException;
import javax.tools.Diagnostic;
import javax.tools.JavaFileObject;
import com.sun.tools.javac.api.ClientCodeWrapper;
import com.sun.tools.javac.util.List;
import combo.ComboInstance;
import combo.ComboParameter;
import combo.ComboTask.Result;
import combo.ComboTestHelper;
public class TestLambdaToMethodStats extends ComboInstance<TestLambdaToMethodStats> {
enum ExprKind implements ComboParameter {
LAMBDA("()->null"),
MREF1("this::g"),
MREF2("this::h");
String exprStr;
ExprKind(String exprStr) {
this.exprStr = exprStr;
}
@Override
public String expand(String optParameter) {
return exprStr;
}
}
enum TargetKind implements ComboParameter {
IMPLICIT(""),
SERIALIZABLE("(A & java.io.Serializable)");
String targetStr;
TargetKind(String targetStr) {
this.targetStr = targetStr;
}
@Override
public String expand(String optParameter) {
return targetStr;
}
}
enum DiagnosticKind {
LAMBDA_STAT("compiler.note.lambda.stat", true, false),
MREF_STAT("compiler.note.mref.stat", false, false),
MREF_STAT1("compiler.note.mref.stat.1", false, true);
String code;
boolean lambda;
boolean bridge;
DiagnosticKind(String code, boolean lambda, boolean bridge) {
this.code = code;
this.lambda = lambda;
this.bridge = bridge;
}
}
public static void main(String... args) throws Exception {
new ComboTestHelper<TestLambdaToMethodStats>()
.withDimension("EXPR", (x, expr) -> x.ek = expr, ExprKind.values())
.withDimension("CAST", (x, target) -> x.tk = target, TargetKind.values())
.run(TestLambdaToMethodStats::new);
}
ExprKind ek;
TargetKind tk;
String template = "interface A {\n" +
" Object o();\n" +
"}\n" +
"class Test {\n" +
" A a = #{CAST}#{EXPR};\n" +
" Object g() { return null; }\n" +
" Object h(Object... o) { return null; }\n" +
"}";
@Override
public void doWork() throws IOException {
check(newCompilationTask()
.withOption("--debug:dumpLambdaToMethodStats")
.withSourceFromTemplate(template)
.generate());
}
void check(Result<?> res) {
DiagnosticKind diag = null;
boolean altMetafactory = false;
for (DiagnosticKind dk : DiagnosticKind.values()) {
List<Diagnostic<? extends JavaFileObject>> jcDiag = res.diagnosticsForKey(dk.code);
if (jcDiag.nonEmpty()) {
diag = dk;
ClientCodeWrapper.DiagnosticSourceUnwrapper dsu =
(ClientCodeWrapper.DiagnosticSourceUnwrapper)jcDiag.head;
altMetafactory = (Boolean)dsu.d.getArgs()[0];
break;
}
}
if (diag == null) {
fail("No diagnostic found; " + res.compilationInfo());
}
boolean error = diag.lambda !=
(ek == ExprKind.LAMBDA);
error |= diag.bridge !=
(ek == ExprKind.MREF2);
error |= altMetafactory !=
(tk == TargetKind.SERIALIZABLE);
if (error) {
fail("Bad stat diagnostic found for source\n" +
"lambda = " + diag.lambda + "\n" +
"bridge = " + diag.bridge + "\n" +
"altMF = " + altMetafactory + "\n" +
res.compilationInfo());
}
}
}
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