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/*
* Copyright (c) 2014, 2024, 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 8034091
* @summary Add LineNumberTable attributes for conditional operator (?:) split across several lines.
*/
import java.lang.classfile.*;
import java.lang.classfile.attribute.*;
import java.io.File;
import java.io.IOException;
import java.util.List;
public class ConditionalLineNumberTest {
public static void main(String[] args) throws Exception {
// check that we have 5 consecutive entries for method()
List<LineNumberInfo> lines = findEntries();
if (lines == null || lines.size() != 5)
throw new Exception("conditional line number table incorrect");
int current = lines.get(0).lineNumber();
for (LineNumberInfo e : lines) {
if (e.lineNumber() != current)
throw new Exception("conditional line number table incorrect");
current++;
}
}
static List<LineNumberInfo> findEntries() throws IOException {
ClassModel self = ClassFile.of().parse(ConditionalLineNumberTest.class.getResourceAsStream("ConditionalLineNumberTest.class").readAllBytes());
for (MethodModel m : self.methods()) {
if (m.methodName().equalsString("method")) {
CodeAttribute code_attribute = m.findAttribute(Attributes.code()).orElse(null);
assert code_attribute != null;
for (Attribute<?> at : code_attribute.attributes()) {
if (at instanceof LineNumberTableAttribute) {
return ((LineNumberTableAttribute)at).lineNumbers();
}
}
}
}
return null;
}
// This method should get one LineNumberTable entry per line
// in the method body.
public static String method(int field) {
String s = field % 2 == 0 ?
(field == 0 ? "false"
: "true" + field) : //Breakpoint
"false" + field; //Breakpoint
return s;
}
}
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