1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/lambda/mostSpecific/StructuralMostSpecificTest.java Sat Nov 17 19:01:03 2012 +0000
1.3 @@ -0,0 +1,303 @@
1.4 +/*
1.5 + * Copyright (c) 2012, 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 8003280
1.30 + * @summary Add lambda tests
1.31 + * Automatic test for checking correctness of structural most specific test routine
1.32 + * @run main/timeout=360 StructuralMostSpecificTest
1.33 + */
1.34 +
1.35 +import com.sun.source.util.JavacTask;
1.36 +import com.sun.tools.javac.api.ClientCodeWrapper;
1.37 +import com.sun.tools.javac.util.JCDiagnostic;
1.38 +import java.net.URI;
1.39 +import java.util.Arrays;
1.40 +import javax.tools.Diagnostic;
1.41 +import javax.tools.JavaCompiler;
1.42 +import javax.tools.JavaFileObject;
1.43 +import javax.tools.SimpleJavaFileObject;
1.44 +import javax.tools.StandardJavaFileManager;
1.45 +import javax.tools.ToolProvider;
1.46 +
1.47 +public class StructuralMostSpecificTest {
1.48 +
1.49 + static int checkCount = 0;
1.50 +
1.51 + enum RetTypeKind {
1.52 + SHORT("short"),
1.53 + INT("int"),
1.54 + OBJECT("Object"),
1.55 + INTEGER("Integer"),
1.56 + VOID("void"),
1.57 + J_L_VOID("Void");
1.58 +
1.59 + String retTypeStr;
1.60 +
1.61 + RetTypeKind(String retTypeStr) {
1.62 + this.retTypeStr = retTypeStr;
1.63 + }
1.64 +
1.65 + boolean moreSpecificThan(RetTypeKind rk) {
1.66 + return moreSpecificThan[this.ordinal()][rk.ordinal()];
1.67 + }
1.68 +
1.69 + static boolean[][] moreSpecificThan = {
1.70 + // SHORT | INT | OBJECT | INTEGER | VOID | J_L_VOID
1.71 + /* SHORT */ { true , true , true , false , false , false },
1.72 + /* INT */ { false , true , true , true , false , false },
1.73 + /* OBJECT */ { false , false , true , false , false , false },
1.74 + /* INTEGER */ { false , false , true , true , false , false },
1.75 + /* VOID */ { false , false , false , false , true , true },
1.76 + /* J_L_VOID */{ false , false , true , false , false , true } };
1.77 + }
1.78 +
1.79 + enum ArgTypeKind {
1.80 + SHORT("short"),
1.81 + INT("int"),
1.82 + BOOLEAN("boolean"),
1.83 + OBJECT("Object"),
1.84 + INTEGER("Integer"),
1.85 + DOUBLE("Double");
1.86 +
1.87 + String argTypeStr;
1.88 +
1.89 + ArgTypeKind(String typeStr) {
1.90 + this.argTypeStr = typeStr;
1.91 + }
1.92 + }
1.93 +
1.94 + enum ExceptionKind {
1.95 + NONE(""),
1.96 + EXCEPTION("throws Exception"),
1.97 + SQL_EXCEPTION("throws java.sql.SQLException"),
1.98 + IO_EXCEPTION("throws java.io.IOException");
1.99 +
1.100 + String exceptionStr;
1.101 +
1.102 + ExceptionKind(String exceptionStr) {
1.103 + this.exceptionStr = exceptionStr;
1.104 + }
1.105 + }
1.106 +
1.107 + enum LambdaReturnKind {
1.108 + VOID("return;"),
1.109 + SHORT("return (short)0;"),
1.110 + INT("return 0;"),
1.111 + INTEGER("return (Integer)null"),
1.112 + NULL("return null;");
1.113 +
1.114 + String retStr;
1.115 +
1.116 + LambdaReturnKind(String retStr) {
1.117 + this.retStr = retStr;
1.118 + }
1.119 +
1.120 + boolean compatibleWith(RetTypeKind rk) {
1.121 + return compatibleWith[rk.ordinal()][ordinal()];
1.122 + }
1.123 +
1.124 + static boolean[][] compatibleWith = {
1.125 + // VOID | SHORT | INT | INTEGER | NULL
1.126 + /* SHORT */ { false , true , false , false , false },
1.127 + /* INT */ { false , true , true , true , false },
1.128 + /* OBJECT */ { false , true , true , true , true },
1.129 + /* INTEGER */ { false , false , true , true , true },
1.130 + /* VOID */ { true , false , false , false , false },
1.131 + /* J_L_VOID */{ false , false , false , false , true } };
1.132 +
1.133 + boolean needsConversion(RetTypeKind rk) {
1.134 + return needsConversion[rk.ordinal()][ordinal()];
1.135 + }
1.136 +
1.137 + static boolean[][] needsConversion = {
1.138 + // VOID | SHORT | INT | INTEGER | NULL
1.139 + /* SHORT */ { false , false , false , false , false },
1.140 + /* INT */ { false , false , false , true , false },
1.141 + /* OBJECT */ { false , true , true , false , false },
1.142 + /* INTEGER */ { false , false , true , false , false },
1.143 + /* VOID */ { false , false , false , false , false },
1.144 + /* J_L_VOID */{ true , false , false , false , false } };
1.145 + }
1.146 +
1.147 + public static void main(String... args) throws Exception {
1.148 +
1.149 + //create default shared JavaCompiler - reused across multiple compilations
1.150 + JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
1.151 + StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null);
1.152 +
1.153 + for (LambdaReturnKind lrk : LambdaReturnKind.values()) {
1.154 + for (RetTypeKind rk1 : RetTypeKind.values()) {
1.155 + for (RetTypeKind rk2 : RetTypeKind.values()) {
1.156 + for (ExceptionKind ek1 : ExceptionKind.values()) {
1.157 + for (ExceptionKind ek2 : ExceptionKind.values()) {
1.158 + for (ArgTypeKind ak11 : ArgTypeKind.values()) {
1.159 + for (ArgTypeKind ak12 : ArgTypeKind.values()) {
1.160 + new StructuralMostSpecificTest(lrk, rk1, rk2, ek1, ek2, ak11, ak12).run(comp, fm);
1.161 + }
1.162 + }
1.163 + }
1.164 + }
1.165 + }
1.166 + }
1.167 + }
1.168 + System.out.println("Total check executed: " + checkCount);
1.169 + }
1.170 +
1.171 + LambdaReturnKind lrk;
1.172 + RetTypeKind rt1, rt2;
1.173 + ArgTypeKind ak1, ak2;
1.174 + ExceptionKind ek1, ek2;
1.175 + JavaSource source;
1.176 + DiagnosticChecker diagChecker;
1.177 +
1.178 + StructuralMostSpecificTest(LambdaReturnKind lrk, RetTypeKind rt1, RetTypeKind rt2,
1.179 + ExceptionKind ek1, ExceptionKind ek2, ArgTypeKind ak1, ArgTypeKind ak2) {
1.180 + this.lrk = lrk;
1.181 + this.rt1 = rt1;
1.182 + this.rt2 = rt2;
1.183 + this.ek1 = ek1;
1.184 + this.ek2 = ek2;
1.185 + this.ak1 = ak1;
1.186 + this.ak2 = ak2;
1.187 + this.source = new JavaSource();
1.188 + this.diagChecker = new DiagnosticChecker();
1.189 + }
1.190 +
1.191 + class JavaSource extends SimpleJavaFileObject {
1.192 +
1.193 + String template = "interface SAM1 {\n" +
1.194 + " #R1 m(#A1 a1) #E1;\n" +
1.195 + "}\n" +
1.196 + "interface SAM2 {\n" +
1.197 + " #R2 m(#A2 a1) #E2;\n" +
1.198 + "}\n" +
1.199 + "class Test {\n" +
1.200 + " void m(SAM1 s) { }\n" +
1.201 + " void m(SAM2 s) { }\n" +
1.202 + " { m(x->{ #LR }); }\n" +
1.203 + "}\n";
1.204 +
1.205 + String source;
1.206 +
1.207 + public JavaSource() {
1.208 + super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
1.209 + source = template.replaceAll("#LR", lrk.retStr)
1.210 + .replaceAll("#R1", rt1.retTypeStr)
1.211 + .replaceAll("#R2", rt2.retTypeStr)
1.212 + .replaceAll("#A1", ak1.argTypeStr)
1.213 + .replaceAll("#A2", ak2.argTypeStr)
1.214 + .replaceAll("#E1", ek1.exceptionStr)
1.215 + .replaceAll("#E2", ek2.exceptionStr);
1.216 + }
1.217 +
1.218 + @Override
1.219 + public CharSequence getCharContent(boolean ignoreEncodingErrors) {
1.220 + return source;
1.221 + }
1.222 + }
1.223 +
1.224 + void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception {
1.225 + JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker,
1.226 + Arrays.asList("-XDverboseResolution=all,-predef,-internal,-object-init"),
1.227 + null, Arrays.asList(source));
1.228 + try {
1.229 + ct.analyze();
1.230 + } catch (Throwable ex) {
1.231 + throw new AssertionError("Error thron when analyzing the following source:\n" + source.getCharContent(true));
1.232 + }
1.233 + check();
1.234 + }
1.235 +
1.236 + void check() {
1.237 + checkCount++;
1.238 +
1.239 + if (!lrk.compatibleWith(rt1) || !lrk.compatibleWith(rt2))
1.240 + return;
1.241 +
1.242 + if (lrk.needsConversion(rt1) != lrk.needsConversion(rt2))
1.243 + return;
1.244 +
1.245 + boolean m1MoreSpecific = moreSpecific(rt1, rt2, ek1, ek2, ak1, ak2);
1.246 + boolean m2MoreSpecific = moreSpecific(rt2, rt1, ek2, ek1, ak2, ak1);
1.247 +
1.248 + boolean ambiguous = (m1MoreSpecific == m2MoreSpecific);
1.249 +
1.250 + if (ambiguous != diagChecker.ambiguityFound) {
1.251 + throw new Error("invalid diagnostics for source:\n" +
1.252 + source.getCharContent(true) +
1.253 + "\nAmbiguity found: " + diagChecker.ambiguityFound +
1.254 + "\nm1 more specific: " + m1MoreSpecific +
1.255 + "\nm2 more specific: " + m2MoreSpecific +
1.256 + "\nexpected ambiguity: " + ambiguous);
1.257 + }
1.258 +
1.259 + if (!ambiguous) {
1.260 + String sigToCheck = m1MoreSpecific ? "m(SAM1)" : "m(SAM2)";
1.261 + if (!sigToCheck.equals(diagChecker.mostSpecificSig)) {
1.262 + throw new Error("invalid most specific method selected:\n" +
1.263 + source.getCharContent(true) +
1.264 + "\nMost specific found: " + diagChecker.mostSpecificSig +
1.265 + "\nm1 more specific: " + m1MoreSpecific +
1.266 + "\nm2 more specific: " + m2MoreSpecific);
1.267 + }
1.268 + }
1.269 + }
1.270 +
1.271 + boolean moreSpecific(RetTypeKind rk1, RetTypeKind rk2, ExceptionKind ek1, ExceptionKind ek2,
1.272 + ArgTypeKind ak1, ArgTypeKind ak2) {
1.273 + if (!rk1.moreSpecificThan(rk2))
1.274 + return false;
1.275 +
1.276 + if (ak1 != ak2)
1.277 + return false;
1.278 +
1.279 + return true;
1.280 + }
1.281 +
1.282 + static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
1.283 +
1.284 + boolean ambiguityFound;
1.285 + String mostSpecificSig;
1.286 +
1.287 + public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
1.288 + try {
1.289 + if (diagnostic.getKind() == Diagnostic.Kind.ERROR &&
1.290 + diagnostic.getCode().equals("compiler.err.ref.ambiguous")) {
1.291 + ambiguityFound = true;
1.292 + } else if (diagnostic.getKind() == Diagnostic.Kind.NOTE &&
1.293 + diagnostic.getCode().equals("compiler.note.verbose.resolve.multi")) {
1.294 + ClientCodeWrapper.DiagnosticSourceUnwrapper dsu =
1.295 + (ClientCodeWrapper.DiagnosticSourceUnwrapper)diagnostic;
1.296 + JCDiagnostic.MultilineDiagnostic mdiag = (JCDiagnostic.MultilineDiagnostic)dsu.d;
1.297 + int mostSpecificIndex = (Integer)mdiag.getArgs()[2];
1.298 + mostSpecificSig = ((JCDiagnostic)mdiag.getSubdiagnostics().get(mostSpecificIndex)).getArgs()[1].toString();
1.299 + }
1.300 + } catch (RuntimeException t) {
1.301 + t.printStackTrace();
1.302 + throw t;
1.303 + }
1.304 + }
1.305 + }
1.306 +}
