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/*
* Copyright (c) 2020, 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 8243047
* @summary javac should not crash while processing exits in class initializers in Flow
* @library /tools/lib /tools/javac/lib
* @modules jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.file
* jdk.compiler/com.sun.tools.javac.main
* jdk.compiler/com.sun.tools.javac.util
* @build toolbox.ToolBox toolbox.JavacTask
* @build combo.ComboTestHelper
* @compile ClassBlockExits.java
* @run main ClassBlockExits
*/
import combo.ComboInstance;
import combo.ComboParameter;
import combo.ComboTask;
import combo.ComboTestHelper;
import java.io.StringWriter;
import toolbox.ToolBox;
public class ClassBlockExits extends ComboInstance<ClassBlockExits> {
protected ToolBox tb;
ClassBlockExits() {
super();
tb = new ToolBox();
}
public static void main(String... args) throws Exception {
new ComboTestHelper<ClassBlockExits>()
.withDimension("BLOCK", (x, block) -> x.block = block, Block.values())
.withDimension("EXIT", (x, exit) -> x.exit = exit, Exit.values())
.run(ClassBlockExits::new);
}
private Block block;
private Exit exit;
private static final String MAIN_TEMPLATE =
"""
public class Test {
#{BLOCK}
void t() {}
}
""";
@Override
protected void doWork() throws Throwable {
StringWriter out = new StringWriter();
ComboTask task = newCompilationTask()
.withSourceFromTemplate(MAIN_TEMPLATE, pname -> switch (pname) {
case "BLOCK" -> block;
case "BODY" -> exit;
default -> throw new UnsupportedOperationException(pname);
})
.withOption("-XDshould-stop.at=FLOW")
.withOption("-XDdev")
.withWriter(out);
task.analyze(result -> {
if (out.toString().length() > 0) {
throw new AssertionError("No output expected, but got" + out + "\n\n" + result.compilationInfo());
}
});
}
public enum Block implements ComboParameter {
STATIC("""
static {
#{BODY}
}
"""),
INSTANCE("""
{
#{BODY}
}
"""),
STATIC_INITIALIZER("""
private static int i = switch (0) { default: #{BODY} case 0: yield 0; };
"""),
INITIALIZER("""
private int i = switch (0) { default: #{BODY} case 0: yield 0; };
""");
private final String block;
private Block(String block) {
this.block = block;
}
@Override
public String expand(String optParameter) {
return block;
}
}
public enum Exit implements ComboParameter {
RETURN("return;"),
RETURN_VALUE("return null;"),
BREAK("break;"),
BREAK_LABEL("break LABEL;"),
CONTINUE("continue;"),
CONTINUE_LABEL("continue LABEL;"),
YIELD("yield 0;");
private final String code;
private Exit(String code) {
this.code = code;
}
@Override
public String expand(String optParameter) {
return code;
}
}
}
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