1 /* 2 * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 8013576 8129962 27 * @summary Add stat support to LambdaToMethod 28 * @library /tools/javac/lib 29 * @modules jdk.compiler/com.sun.tools.javac.api 30 * jdk.compiler/com.sun.tools.javac.code 31 * jdk.compiler/com.sun.tools.javac.comp 32 * jdk.compiler/com.sun.tools.javac.main 33 * jdk.compiler/com.sun.tools.javac.tree 34 * jdk.compiler/com.sun.tools.javac.util 35 * @build combo.ComboTestHelper 36 * @run main TestLambdaToMethodStats 37 */ 38 39 import java.io.IOException; 40 41 import javax.tools.Diagnostic; 42 import javax.tools.JavaFileObject; 43 44 import com.sun.tools.javac.api.ClientCodeWrapper; 45 46 import com.sun.tools.javac.util.List; 47 import combo.ComboInstance; 48 import combo.ComboParameter; 49 import combo.ComboTask.Result; 50 import combo.ComboTestHelper; 51 52 public class TestLambdaToMethodStats extends ComboInstance<TestLambdaToMethodStats> { 53 54 enum ExprKind implements ComboParameter { 55 LAMBDA("()->null"), 56 MREF1("this::g"), 57 MREF2("this::h"); 58 59 String exprStr; 60 ExprKind(String exprStr)61 ExprKind(String exprStr) { 62 this.exprStr = exprStr; 63 } 64 65 @Override expand(String optParameter)66 public String expand(String optParameter) { 67 return exprStr; 68 } 69 } 70 71 enum TargetKind implements ComboParameter { 72 IMPLICIT(""), 73 SERIALIZABLE("(A & java.io.Serializable)"); 74 75 String targetStr; 76 TargetKind(String targetStr)77 TargetKind(String targetStr) { 78 this.targetStr = targetStr; 79 } 80 81 @Override expand(String optParameter)82 public String expand(String optParameter) { 83 return targetStr; 84 } 85 } 86 87 enum DiagnosticKind { 88 LAMBDA_STAT("compiler.note.lambda.stat", true, false), 89 MREF_STAT("compiler.note.mref.stat", false, false), 90 MREF_STAT1("compiler.note.mref.stat.1", false, true); 91 92 String code; 93 boolean lambda; 94 boolean bridge; 95 DiagnosticKind(String code, boolean lambda, boolean bridge)96 DiagnosticKind(String code, boolean lambda, boolean bridge) { 97 this.code = code; 98 this.lambda = lambda; 99 this.bridge = bridge; 100 } 101 } 102 main(String... args)103 public static void main(String... args) throws Exception { 104 new ComboTestHelper<TestLambdaToMethodStats>() 105 .withDimension("EXPR", (x, expr) -> x.ek = expr, ExprKind.values()) 106 .withDimension("CAST", (x, target) -> x.tk = target, TargetKind.values()) 107 .run(TestLambdaToMethodStats::new); 108 } 109 110 ExprKind ek; 111 TargetKind tk; 112 113 String template = "interface A {\n" + 114 " Object o();\n" + 115 "}\n" + 116 "class Test {\n" + 117 " A a = #{CAST}#{EXPR};\n" + 118 " Object g() { return null; }\n" + 119 " Object h(Object... o) { return null; }\n" + 120 "}"; 121 122 @Override doWork()123 public void doWork() throws IOException { 124 newCompilationTask() 125 .withOption("--debug=dumpLambdaToMethodStats") 126 .withSourceFromTemplate(template) 127 .generate(this::check); 128 } 129 check(Result<?> res)130 void check(Result<?> res) { 131 DiagnosticKind diag = null; 132 boolean altMetafactory = false; 133 for (DiagnosticKind dk : DiagnosticKind.values()) { 134 List<Diagnostic<? extends JavaFileObject>> jcDiag = res.diagnosticsForKey(dk.code); 135 if (jcDiag.nonEmpty()) { 136 diag = dk; 137 ClientCodeWrapper.DiagnosticSourceUnwrapper dsu = 138 (ClientCodeWrapper.DiagnosticSourceUnwrapper)jcDiag.head; 139 altMetafactory = (Boolean)dsu.d.getArgs()[0]; 140 break; 141 } 142 } 143 144 if (diag == null) { 145 fail("No diagnostic found; " + res.compilationInfo()); 146 } 147 148 boolean error = diag.lambda != 149 (ek == ExprKind.LAMBDA); 150 151 error |= diag.bridge != 152 (ek == ExprKind.MREF2); 153 154 error |= altMetafactory != 155 (tk == TargetKind.SERIALIZABLE); 156 157 if (error) { 158 fail("Bad stat diagnostic found for source\n" + 159 "lambda = " + diag.lambda + "\n" + 160 "bridge = " + diag.bridge + "\n" + 161 "altMF = " + altMetafactory + "\n" + 162 res.compilationInfo()); 163 } 164 } 165 } 166