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/*
* Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8003280
* @summary Add lambda tests
* compile crashes on partial lambda expressions
* @modules jdk.compiler
*/
import com.sun.source.util.JavacTask;
import java.net.URI;
import java.util.Arrays;
import javax.tools.Diagnostic;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.StandardJavaFileManager;
import javax.tools.ToolProvider;
public class BadLambdaExpr {
static int checkCount = 0;
enum ParameterListKind {
ZERO_ARY("()"),
UNARY("(#P)"),
TWO_ARY("(#P, #P)"),
THREE_ARY("(#P, #P, #P)");
String parametersTemplateStr;
ParameterListKind(String parametersTemplateStr) {
this.parametersTemplateStr = parametersTemplateStr;
}
String getParameterString(ParameterKind pk) {
return parametersTemplateStr.replaceAll("#P", pk.parameterStr);
}
}
enum ParameterKind {
IMPLICIT("a"),
EXPLIICT("A a");
String parameterStr;
ParameterKind(String parameterStr) {
this.parameterStr = parameterStr;
}
}
enum ArrowKind {
NONE(""),
SEMI("-"),
FULL("->");
String arrowStr;
ArrowKind(String arrowStr) {
this.arrowStr = arrowStr;
}
}
enum ExprKind {
NONE("#P#A"),
METHOD_CALL("m(#P#A)"),
CONSTR_CALL("new Foo(#P#A)");
String expressionTemplate;
ExprKind(String expressionTemplate) {
this.expressionTemplate = expressionTemplate;
}
String expressionString(ParameterListKind plk, ParameterKind pk,
ArrowKind ak) {
return expressionTemplate.replaceAll("#P", plk.getParameterString(pk))
.replaceAll("#A", ak.arrowStr);
}
}
public static void main(String... args) throws Exception {
//create default shared JavaCompiler - reused across multiple compilations
JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
try (StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null)) {
for (ParameterListKind plk : ParameterListKind.values()) {
for (ParameterKind pk : ParameterKind.values()) {
for (ArrowKind ak : ArrowKind.values()) {
for (ExprKind ek : ExprKind.values()) {
new BadLambdaExpr(plk, pk, ak, ek).run(comp, fm);
}
}
}
}
System.out.println("Total check executed: " + checkCount);
}
}
ParameterListKind plk;
ParameterKind pk;
ArrowKind ak;
ExprKind ek;
JavaSource source;
DiagnosticChecker diagChecker;
BadLambdaExpr(ParameterListKind plk, ParameterKind pk, ArrowKind ak, ExprKind ek) {
this.plk = plk;
this.pk = pk;
this.ak = ak;
this.ek = ek;
this.source = new JavaSource();
this.diagChecker = new DiagnosticChecker();
}
class JavaSource extends SimpleJavaFileObject {
String template = "class Test {\n" +
" SAM s = #E;\n" +
"}";
String source;
public JavaSource() {
super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
source = template.replaceAll("#E", ek.expressionString(plk, pk, ak));
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return source;
}
}
void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception {
JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker,
null, null, Arrays.asList(source));
try {
ct.parse();
} catch (Throwable ex) {
throw new AssertionError("Error thron when parsing the following source:\n" + source.getCharContent(true));
}
check();
}
void check() {
boolean errorExpected =
ak != ArrowKind.NONE ||
plk != ParameterListKind.UNARY ||
pk != ParameterKind.IMPLICIT;
if (errorExpected != diagChecker.errorFound) {
throw new Error("bad diag for source:\n" +
source.getCharContent(true));
}
checkCount++;
}
static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
boolean errorFound;
@Override
public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
errorFound = true;
}
}
}
}
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