1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/cast/intersection/IntersectionTypeParserTest.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,191 @@
1.4 +/*
1.5 + * Copyright (c) 2012, 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 8002099
1.30 + * @summary Add support for intersection types in cast expression
1.31 + */
1.32 +
1.33 +import com.sun.source.util.JavacTask;
1.34 +import java.net.URI;
1.35 +import java.util.Arrays;
1.36 +import javax.tools.Diagnostic;
1.37 +import javax.tools.JavaCompiler;
1.38 +import javax.tools.JavaFileObject;
1.39 +import javax.tools.SimpleJavaFileObject;
1.40 +import javax.tools.StandardJavaFileManager;
1.41 +import javax.tools.ToolProvider;
1.42 +
1.43 +public class IntersectionTypeParserTest {
1.44 +
1.45 + static int checkCount = 0;
1.46 +
1.47 + enum TypeKind {
1.48 + SIMPLE("A"),
1.49 + GENERIC("A<X>"),
1.50 + WILDCARD("A<? super X, ? extends Y>");
1.51 +
1.52 + String typeStr;
1.53 +
1.54 + TypeKind(String typeStr) {
1.55 + this.typeStr = typeStr;
1.56 + }
1.57 + }
1.58 +
1.59 + enum ArrayKind {
1.60 + NONE(""),
1.61 + SINGLE("[]"),
1.62 + DOUBLE("[][]");
1.63 +
1.64 + String arrStr;
1.65 +
1.66 + ArrayKind(String arrStr) {
1.67 + this.arrStr = arrStr;
1.68 + }
1.69 + }
1.70 +
1.71 + static class Type {
1.72 + TypeKind tk;
1.73 + ArrayKind ak;
1.74 +
1.75 + Type(TypeKind tk, ArrayKind ak) {
1.76 + this.tk = tk;
1.77 + this.ak = ak;
1.78 + }
1.79 +
1.80 + String asString() {
1.81 + return tk.typeStr + ak.arrStr;
1.82 + }
1.83 + }
1.84 +
1.85 + enum CastKind {
1.86 + ONE("(#T0)", 1),
1.87 + TWO("(#T0 & T1)", 2),
1.88 + THREE("(#T0 & #T1 & #T2)", 3);
1.89 +
1.90 + String castTemplate;
1.91 + int nBounds;
1.92 +
1.93 + CastKind(String castTemplate, int nBounds) {
1.94 + this.castTemplate = castTemplate;
1.95 + this.nBounds = nBounds;
1.96 + }
1.97 +
1.98 + String asString(Type... types) {
1.99 + String res = castTemplate;
1.100 + for (int i = 0; i < nBounds ; i++) {
1.101 + res = res.replaceAll(String.format("#T%d", i), types[i].asString());
1.102 + }
1.103 + return res;
1.104 + }
1.105 + }
1.106 +
1.107 + public static void main(String... args) throws Exception {
1.108 + //create default shared JavaCompiler - reused across multiple compilations
1.109 + JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
1.110 + StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null);
1.111 +
1.112 + for (CastKind ck : CastKind.values()) {
1.113 + for (TypeKind t1 : TypeKind.values()) {
1.114 + for (ArrayKind ak1 : ArrayKind.values()) {
1.115 + Type typ1 = new Type(t1, ak1);
1.116 + if (ck.nBounds == 1) {
1.117 + new IntersectionTypeParserTest(ck, typ1).run(comp, fm);
1.118 + continue;
1.119 + }
1.120 + for (TypeKind t2 : TypeKind.values()) {
1.121 + for (ArrayKind ak2 : ArrayKind.values()) {
1.122 + Type typ2 = new Type(t2, ak2);
1.123 + if (ck.nBounds == 2) {
1.124 + new IntersectionTypeParserTest(ck, typ1, typ2).run(comp, fm);
1.125 + continue;
1.126 + }
1.127 + for (TypeKind t3 : TypeKind.values()) {
1.128 + for (ArrayKind ak3 : ArrayKind.values()) {
1.129 + Type typ3 = new Type(t3, ak3);
1.130 + new IntersectionTypeParserTest(ck, typ1, typ2, typ3).run(comp, fm);
1.131 + }
1.132 + }
1.133 + }
1.134 + }
1.135 + }
1.136 + }
1.137 + }
1.138 + System.out.println("Total check executed: " + checkCount);
1.139 + }
1.140 +
1.141 + CastKind ck;
1.142 + Type[] types;
1.143 + JavaSource source;
1.144 + DiagnosticChecker diagChecker;
1.145 +
1.146 + IntersectionTypeParserTest(CastKind ck, Type... types) {
1.147 + this.ck = ck;
1.148 + this.types = types;
1.149 + this.source = new JavaSource();
1.150 + this.diagChecker = new DiagnosticChecker();
1.151 + }
1.152 +
1.153 + class JavaSource extends SimpleJavaFileObject {
1.154 +
1.155 + String bodyTemplate = "class Test {\n" +
1.156 + " void test() {\n" +
1.157 + " Object o = #Cnull;\n" +
1.158 + " } }";
1.159 +
1.160 + String source = "";
1.161 +
1.162 + public JavaSource() {
1.163 + super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
1.164 + source += bodyTemplate.replaceAll("#C", ck.asString(types));
1.165 + }
1.166 +
1.167 + @Override
1.168 + public CharSequence getCharContent(boolean ignoreEncodingErrors) {
1.169 + return source;
1.170 + }
1.171 + }
1.172 +
1.173 + void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception {
1.174 + checkCount++;
1.175 + JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker,
1.176 + null, null, Arrays.asList(source));
1.177 + ct.parse();
1.178 + if (diagChecker.errorFound) {
1.179 + throw new Error("Unexpected parser error for source:\n" +
1.180 + source.getCharContent(true));
1.181 + }
1.182 + }
1.183 +
1.184 + static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
1.185 +
1.186 + boolean errorFound;
1.187 +
1.188 + public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
1.189 + if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
1.190 + errorFound = true;
1.191 + }
1.192 + }
1.193 + }
1.194 +}
