1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/lambda/BadLambdaExpr.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,191 @@
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 + * compile crashes on partial lambda expressions
1.32 + */
1.33 +
1.34 +import com.sun.source.util.JavacTask;
1.35 +import java.net.URI;
1.36 +import java.util.Arrays;
1.37 +import javax.tools.Diagnostic;
1.38 +import javax.tools.JavaCompiler;
1.39 +import javax.tools.JavaFileObject;
1.40 +import javax.tools.SimpleJavaFileObject;
1.41 +import javax.tools.StandardJavaFileManager;
1.42 +import javax.tools.ToolProvider;
1.43 +
1.44 +
1.45 +public class BadLambdaExpr {
1.46 +
1.47 + static int checkCount = 0;
1.48 +
1.49 + enum ParameterListKind {
1.50 + ZERO_ARY("()"),
1.51 + UNARY("(#P)"),
1.52 + TWO_ARY("(#P, #P)"),
1.53 + THREE_ARY("(#P, #P, #P)");
1.54 +
1.55 + String parametersTemplateStr;
1.56 +
1.57 + ParameterListKind(String parametersTemplateStr) {
1.58 + this.parametersTemplateStr = parametersTemplateStr;
1.59 + }
1.60 +
1.61 + String getParameterString(ParameterKind pk) {
1.62 + return parametersTemplateStr.replaceAll("#P", pk.parameterStr);
1.63 + }
1.64 + }
1.65 +
1.66 + enum ParameterKind {
1.67 + IMPLICIT("a"),
1.68 + EXPLIICT("A a");
1.69 +
1.70 + String parameterStr;
1.71 +
1.72 + ParameterKind(String parameterStr) {
1.73 + this.parameterStr = parameterStr;
1.74 + }
1.75 + }
1.76 +
1.77 + enum ArrowKind {
1.78 + NONE(""),
1.79 + SEMI("-"),
1.80 + FULL("->");
1.81 +
1.82 + String arrowStr;
1.83 +
1.84 + ArrowKind(String arrowStr) {
1.85 + this.arrowStr = arrowStr;
1.86 + }
1.87 + }
1.88 +
1.89 + enum ExprKind {
1.90 + NONE("#P#A"),
1.91 + METHOD_CALL("m(#P#A)"),
1.92 + CONSTR_CALL("new Foo(#P#A)");
1.93 +
1.94 + String expressionTemplate;
1.95 +
1.96 + ExprKind(String expressionTemplate) {
1.97 + this.expressionTemplate = expressionTemplate;
1.98 + }
1.99 +
1.100 + String expressionString(ParameterListKind plk, ParameterKind pk,
1.101 + ArrowKind ak) {
1.102 + return expressionTemplate.replaceAll("#P", plk.getParameterString(pk))
1.103 + .replaceAll("#A", ak.arrowStr);
1.104 + }
1.105 + }
1.106 +
1.107 + public static void main(String... args) throws Exception {
1.108 +
1.109 + //create default shared JavaCompiler - reused across multiple compilations
1.110 + JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
1.111 + StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null);
1.112 +
1.113 + for (ParameterListKind plk : ParameterListKind.values()) {
1.114 + for (ParameterKind pk : ParameterKind.values()) {
1.115 + for (ArrowKind ak : ArrowKind.values()) {
1.116 + for (ExprKind ek : ExprKind.values()) {
1.117 + new BadLambdaExpr(plk, pk, ak, ek).run(comp, fm);
1.118 + }
1.119 + }
1.120 + }
1.121 + }
1.122 + System.out.println("Total check executed: " + checkCount);
1.123 + }
1.124 +
1.125 + ParameterListKind plk;
1.126 + ParameterKind pk;
1.127 + ArrowKind ak;
1.128 + ExprKind ek;
1.129 + JavaSource source;
1.130 + DiagnosticChecker diagChecker;
1.131 +
1.132 + BadLambdaExpr(ParameterListKind plk, ParameterKind pk, ArrowKind ak, ExprKind ek) {
1.133 + this.plk = plk;
1.134 + this.pk = pk;
1.135 + this.ak = ak;
1.136 + this.ek = ek;
1.137 + this.source = new JavaSource();
1.138 + this.diagChecker = new DiagnosticChecker();
1.139 + }
1.140 +
1.141 + class JavaSource extends SimpleJavaFileObject {
1.142 +
1.143 + String template = "class Test {\n" +
1.144 + " SAM s = #E;\n" +
1.145 + "}";
1.146 +
1.147 + String source;
1.148 +
1.149 + public JavaSource() {
1.150 + super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
1.151 + source = template.replaceAll("#E", ek.expressionString(plk, pk, ak));
1.152 + }
1.153 +
1.154 + @Override
1.155 + public CharSequence getCharContent(boolean ignoreEncodingErrors) {
1.156 + return source;
1.157 + }
1.158 + }
1.159 +
1.160 + void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception {
1.161 + JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker,
1.162 + null, null, Arrays.asList(source));
1.163 + try {
1.164 + ct.parse();
1.165 + } catch (Throwable ex) {
1.166 + throw new AssertionError("Error thron when parsing the following source:\n" + source.getCharContent(true));
1.167 + }
1.168 + check();
1.169 + }
1.170 +
1.171 + void check() {
1.172 + boolean errorExpected =
1.173 + ak != ArrowKind.NONE ||
1.174 + plk != ParameterListKind.UNARY ||
1.175 + pk != ParameterKind.IMPLICIT;
1.176 + if (errorExpected != diagChecker.errorFound) {
1.177 + throw new Error("bad diag for source:\n" +
1.178 + source.getCharContent(true));
1.179 + }
1.180 + checkCount++;
1.181 + }
1.182 +
1.183 + static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
1.184 +
1.185 + boolean errorFound;
1.186 +
1.187 + @Override
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 +}
