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8034091: There is no records in LineNumberTable attribute for ternary operator ?: splitted to several lines

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Reviewed-by: jjg
This commit is contained in:
Paul Govereau 2014-03-06 13:50:12 -05:00
parent 67810b5cb5
commit af27057b26
2 changed files with 82 additions and 0 deletions
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80
langtools/test/tools/javac/linenumbers/ConditionalLineNumberTest.java Normal file
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/*
* Copyright (c) 2014, 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 com.sun.tools.classfile.ClassFile;
import com.sun.tools.classfile.ConstantPoolException;
import com.sun.tools.classfile.Method;
import com.sun.tools.classfile.Attribute;
import com.sun.tools.classfile.Code_attribute;
import com.sun.tools.classfile.LineNumberTable_attribute;
import com.sun.tools.classfile.LineNumberTable_attribute.Entry;
import java.io.File;
import java.io.IOException;
public class ConditionalLineNumberTest {
public static void main(String[] args) throws Exception {
// check that we have 5 consecutive entries for method()
Entry[] lines = findEntries();
if (lines == null || lines.length != 5)
throw new Exception("conditional line number table incorrect");
int current = lines[0].line_number;
for (Entry e : lines) {
if (e.line_number != current)
throw new Exception("conditional line number table incorrect");
current++;
}
}
static Entry[] findEntries() throws IOException, ConstantPoolException {
ClassFile self = ClassFile.read(ConditionalLineNumberTest.class.getResourceAsStream("ConditionalLineNumberTest.class"));
for (Method m : self.methods) {
if ("method".equals(m.getName(self.constant_pool))) {
Code_attribute code_attribute = (Code_attribute)m.attributes.get(Attribute.Code);
for (Attribute at : code_attribute.attributes) {
if (Attribute.LineNumberTable.equals(at.getName(self.constant_pool))) {
return ((LineNumberTable_attribute)at).line_number_table;
}
}
}
}
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;
}
}