1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/lambda/MethodReferenceParserTest.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,265 @@
1.4 +/*
1.5 + * Copyright (c) 2011, 2013, 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 7115052 8003280 8006694
1.30 + * @summary Add lambda tests
1.31 + * Add parser support for method references
1.32 + * temporarily workaround combo tests are causing time out in several platforms
1.33 + * @library ../lib
1.34 + * @build JavacTestingAbstractThreadedTest
1.35 + * @run main/othervm MethodReferenceParserTest
1.36 + */
1.37 +
1.38 +// use /othervm to avoid jtreg timeout issues (CODETOOLS-7900047)
1.39 +// see JDK-8006746
1.40 +
1.41 +import java.net.URI;
1.42 +import java.util.Arrays;
1.43 +import javax.tools.Diagnostic;
1.44 +import javax.tools.JavaFileObject;
1.45 +import javax.tools.SimpleJavaFileObject;
1.46 +import com.sun.source.util.JavacTask;
1.47 +
1.48 +public class MethodReferenceParserTest
1.49 + extends JavacTestingAbstractThreadedTest
1.50 + implements Runnable {
1.51 +
1.52 + enum ReferenceKind {
1.53 + METHOD_REF("#Q::#Gm"),
1.54 + CONSTRUCTOR_REF("#Q::#Gnew"),
1.55 + FALSE_REF("min < max"),
1.56 + ERR_SUPER("#Q::#Gsuper"),
1.57 + ERR_METH0("#Q::#Gm()"),
1.58 + ERR_METH1("#Q::#Gm(X)"),
1.59 + ERR_CONSTR0("#Q::#Gnew()"),
1.60 + ERR_CONSTR1("#Q::#Gnew(X)");
1.61 +
1.62 + String referenceTemplate;
1.63 +
1.64 + ReferenceKind(String referenceTemplate) {
1.65 + this.referenceTemplate = referenceTemplate;
1.66 + }
1.67 +
1.68 + String getReferenceString(QualifierKind qk, GenericKind gk) {
1.69 + return referenceTemplate
1.70 + .replaceAll("#Q", qk.qualifier)
1.71 + .replaceAll("#G", gk.typeParameters);
1.72 + }
1.73 +
1.74 + boolean erroneous() {
1.75 + switch (this) {
1.76 + case ERR_SUPER:
1.77 + case ERR_METH0:
1.78 + case ERR_METH1:
1.79 + case ERR_CONSTR0:
1.80 + case ERR_CONSTR1:
1.81 + return true;
1.82 + default: return false;
1.83 + }
1.84 + }
1.85 + }
1.86 +
1.87 + enum ContextKind {
1.88 + ASSIGN("SAM s = #E;"),
1.89 + METHOD("m(#E, i);");
1.90 +
1.91 + String contextTemplate;
1.92 +
1.93 + ContextKind(String contextTemplate) {
1.94 + this.contextTemplate = contextTemplate;
1.95 + }
1.96 +
1.97 + String contextString(ExprKind ek, ReferenceKind rk, QualifierKind qk,
1.98 + GenericKind gk, SubExprKind sk) {
1.99 + return contextTemplate.replaceAll("#E", ek.expressionString(rk, qk, gk, sk));
1.100 + }
1.101 + }
1.102 +
1.103 + enum GenericKind {
1.104 + NONE(""),
1.105 + ONE("<X>"),
1.106 + TWO("<X,Y>");
1.107 +
1.108 + String typeParameters;
1.109 +
1.110 + GenericKind(String typeParameters) {
1.111 + this.typeParameters = typeParameters;
1.112 + }
1.113 + }
1.114 +
1.115 + enum QualifierKind {
1.116 + THIS("this"),
1.117 + SUPER("super"),
1.118 + NEW("new Foo()"),
1.119 + METHOD("m()"),
1.120 + FIELD("a.f"),
1.121 + UBOUND_SIMPLE("A"),
1.122 + UNBOUND_ARRAY1("int[]"),
1.123 + UNBOUND_ARRAY2("A<G>[][]"),
1.124 + UNBOUND_GENERIC1("A<X>"),
1.125 + UNBOUND_GENERIC2("A<X, Y>"),
1.126 + UNBOUND_GENERIC3("A<? extends X, ? super Y>"),
1.127 + UNBOUND_GENERIC4("A<int[], short[][]>"),
1.128 + NESTED_GENERIC1("A<A<X,Y>, A<X,Y>>"),
1.129 + NESTED_GENERIC2("A<A<A<X,Y>,A<X,Y>>, A<A<X,Y>,A<X,Y>>>");
1.130 +
1.131 + String qualifier;
1.132 +
1.133 + QualifierKind(String qualifier) {
1.134 + this.qualifier = qualifier;
1.135 + }
1.136 + }
1.137 +
1.138 + enum ExprKind {
1.139 + NONE("#R::S"),
1.140 + SINGLE_PAREN1("(#R#S)"),
1.141 + SINGLE_PAREN2("(#R)#S"),
1.142 + DOUBLE_PAREN1("((#R#S))"),
1.143 + DOUBLE_PAREN2("((#R)#S)"),
1.144 + DOUBLE_PAREN3("((#R))#S");
1.145 +
1.146 + String expressionTemplate;
1.147 +
1.148 + ExprKind(String expressionTemplate) {
1.149 + this.expressionTemplate = expressionTemplate;
1.150 + }
1.151 +
1.152 + String expressionString(ReferenceKind rk, QualifierKind qk, GenericKind gk, SubExprKind sk) {
1.153 + return expressionTemplate
1.154 + .replaceAll("#R", rk.getReferenceString(qk, gk))
1.155 + .replaceAll("#S", sk.subExpression);
1.156 + }
1.157 + }
1.158 +
1.159 + enum SubExprKind {
1.160 + NONE(""),
1.161 + SELECT_FIELD(".f"),
1.162 + SELECT_METHOD(".f()"),
1.163 + SELECT_NEW(".new Foo()"),
1.164 + POSTINC("++"),
1.165 + POSTDEC("--");
1.166 +
1.167 + String subExpression;
1.168 +
1.169 + SubExprKind(String subExpression) {
1.170 + this.subExpression = subExpression;
1.171 + }
1.172 + }
1.173 +
1.174 + public static void main(String... args) throws Exception {
1.175 + for (ReferenceKind rk : ReferenceKind.values()) {
1.176 + for (QualifierKind qk : QualifierKind.values()) {
1.177 + for (GenericKind gk : GenericKind.values()) {
1.178 + for (SubExprKind sk : SubExprKind.values()) {
1.179 + for (ExprKind ek : ExprKind.values()) {
1.180 + for (ContextKind ck : ContextKind.values()) {
1.181 + pool.execute(new MethodReferenceParserTest(rk, qk, gk, sk, ek, ck));
1.182 + }
1.183 + }
1.184 + }
1.185 + }
1.186 + }
1.187 + }
1.188 +
1.189 + checkAfterExec();
1.190 + }
1.191 +
1.192 + ReferenceKind rk;
1.193 + QualifierKind qk;
1.194 + GenericKind gk;
1.195 + SubExprKind sk;
1.196 + ExprKind ek;
1.197 + ContextKind ck;
1.198 + JavaSource source;
1.199 + DiagnosticChecker diagChecker;
1.200 +
1.201 + MethodReferenceParserTest(ReferenceKind rk, QualifierKind qk, GenericKind gk, SubExprKind sk, ExprKind ek, ContextKind ck) {
1.202 + this.rk = rk;
1.203 + this.qk = qk;
1.204 + this.gk = gk;
1.205 + this.sk = sk;
1.206 + this.ek = ek;
1.207 + this.ck = ck;
1.208 + this.source = new JavaSource();
1.209 + this.diagChecker = new DiagnosticChecker();
1.210 + }
1.211 +
1.212 + class JavaSource extends SimpleJavaFileObject {
1.213 +
1.214 + String template = "class Test {\n" +
1.215 + " void test() {\n" +
1.216 + " #C\n" +
1.217 + " }" +
1.218 + "}";
1.219 +
1.220 + String source;
1.221 +
1.222 + public JavaSource() {
1.223 + super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
1.224 + source = template.replaceAll("#C", ck.contextString(ek, rk, qk, gk, sk));
1.225 + }
1.226 +
1.227 + @Override
1.228 + public CharSequence getCharContent(boolean ignoreEncodingErrors) {
1.229 + return source;
1.230 + }
1.231 + }
1.232 +
1.233 + @Override
1.234 + public void run() {
1.235 + JavacTask ct = (JavacTask)comp.getTask(null, fm.get(), diagChecker,
1.236 + null, null, Arrays.asList(source));
1.237 + try {
1.238 + ct.parse();
1.239 + } catch (Throwable ex) {
1.240 + processException(ex);
1.241 + return;
1.242 + }
1.243 + check();
1.244 + }
1.245 +
1.246 + void check() {
1.247 + checkCount.incrementAndGet();
1.248 +
1.249 + if (diagChecker.errorFound != rk.erroneous()) {
1.250 + throw new Error("invalid diagnostics for source:\n" +
1.251 + source.getCharContent(true) +
1.252 + "\nFound error: " + diagChecker.errorFound +
1.253 + "\nExpected error: " + rk.erroneous());
1.254 + }
1.255 + }
1.256 +
1.257 + static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
1.258 +
1.259 + boolean errorFound;
1.260 +
1.261 + public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
1.262 + if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
1.263 + errorFound = true;
1.264 + }
1.265 + }
1.266 + }
1.267 +
1.268 +}
