79 lines
3.0 KiB
Java
79 lines
3.0 KiB
Java
/*
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* Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8034091
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* @summary Add LineNumberTable attributes for conditional operator (?:) split across several lines.
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* @enablePreview
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*/
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import java.lang.classfile.*;
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import java.lang.classfile.attribute.*;
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import java.io.File;
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import java.io.IOException;
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import java.util.List;
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public class ConditionalLineNumberTest {
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public static void main(String[] args) throws Exception {
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// check that we have 5 consecutive entries for method()
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List<LineNumberInfo> lines = findEntries();
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if (lines == null || lines.size() != 5)
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throw new Exception("conditional line number table incorrect");
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int current = lines.get(0).lineNumber();
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for (LineNumberInfo e : lines) {
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if (e.lineNumber() != current)
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throw new Exception("conditional line number table incorrect");
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current++;
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}
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}
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static List<LineNumberInfo> findEntries() throws IOException {
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ClassModel self = ClassFile.of().parse(ConditionalLineNumberTest.class.getResourceAsStream("ConditionalLineNumberTest.class").readAllBytes());
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for (MethodModel m : self.methods()) {
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if (m.methodName().equalsString("method")) {
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CodeAttribute code_attribute = m.findAttribute(Attributes.code()).orElse(null);
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assert code_attribute != null;
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for (Attribute<?> at : code_attribute.attributes()) {
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if (at instanceof LineNumberTableAttribute) {
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return ((LineNumberTableAttribute)at).lineNumbers();
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}
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}
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}
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}
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return null;
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}
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// This method should get one LineNumberTable entry per line
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// in the method body.
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public static String method(int field) {
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String s = field % 2 == 0 ?
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(field == 0 ? "false"
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: "true" + field) : //Breakpoint
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"false" + field; //Breakpoint
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return s;
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}
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}
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