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/*
* Copyright (c) 2022, 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 8292756
* @summary Verify the Scope can be safely and correctly resized to accommodate pattern binding variables
* when the Scope for a guard is constructed.
* @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 ScopeResizeTest.java
* @run main ScopeResizeTest
*/
import combo.ComboInstance;
import combo.ComboParameter;
import combo.ComboTask;
import combo.ComboTestHelper;
import java.util.stream.Stream;
import toolbox.ToolBox;
public class ScopeResizeTest extends ComboInstance<ScopeResizeTest> {
protected ToolBox tb;
ScopeResizeTest() {
super();
tb = new ToolBox();
}
public static void main(String... args) throws Exception {
int variantsSize = 17;
PredefinedVariables[] variants = Stream.iterate(0, i -> i + 1)
.limit(variantsSize)
.map(s -> new PredefinedVariables(s))
.toArray(s -> new PredefinedVariables[s]);
new ComboTestHelper<ScopeResizeTest>()
.withDimension("PREDEFINED_VARIABLES", (x, predefinedVariables) -> x.predefinedVariables = predefinedVariables, variants)
.run(ScopeResizeTest::new);
}
private PredefinedVariables predefinedVariables;
private static final String MAIN_TEMPLATE =
"""
public class Test {
public static void test(Object o) {
#{PREDEFINED_VARIABLES}
switch (o) {
case String s when s.isEmpty() -> {}
default -> {}
}
}
}
""";
@Override
protected void doWork() throws Throwable {
ComboTask task = newCompilationTask()
.withSourceFromTemplate(MAIN_TEMPLATE, pname -> switch (pname) {
case "PREDEFINED_VARIABLES" -> predefinedVariables;
default -> throw new UnsupportedOperationException(pname);
});
task.analyze(result -> {});
}
public record PredefinedVariables(int size) implements ComboParameter {
@Override
public String expand(String optParameter) {
StringBuilder variables = new StringBuilder();
for (int i = 0; i < size(); i++) {
variables.append("int i" + i + ";\n");
}
return variables.toString();
}
}
}
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