langtools/src/jdk.jdeps/share/classes/com/sun/tools/classfile/LineNumberTable_attribute.java
changeset 30846 2b3f379840f0
parent 25874 83c19f00452c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/jdk.jdeps/share/classes/com/sun/tools/classfile/LineNumberTable_attribute.java	Wed May 27 13:25:18 2015 -0700
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2007, 2008, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+package com.sun.tools.classfile;
+
+import java.io.IOException;
+
+/**
+ * See JVMS, section 4.8.12.
+ *
+ *  <p><b>This is NOT part of any supported API.
+ *  If you write code that depends on this, you do so at your own risk.
+ *  This code and its internal interfaces are subject to change or
+ *  deletion without notice.</b>
+ */
+public class LineNumberTable_attribute extends Attribute {
+    LineNumberTable_attribute(ClassReader cr, int name_index, int length) throws IOException {
+        super(name_index, length);
+        line_number_table_length = cr.readUnsignedShort();
+        line_number_table = new Entry[line_number_table_length];
+        for (int i = 0; i < line_number_table_length; i++)
+            line_number_table[i] = new Entry(cr);
+    }
+
+    public LineNumberTable_attribute(ConstantPool constant_pool, Entry[] line_number_table)
+            throws ConstantPoolException {
+        this(constant_pool.getUTF8Index(Attribute.LineNumberTable), line_number_table);
+    }
+
+    public LineNumberTable_attribute(int name_index, Entry[] line_number_table) {
+        super(name_index, 2 + line_number_table.length * Entry.length());
+        this.line_number_table_length = line_number_table.length;
+        this.line_number_table = line_number_table;
+    }
+
+    public <R, D> R accept(Visitor<R, D> visitor, D data) {
+        return visitor.visitLineNumberTable(this, data);
+    }
+
+    public final int line_number_table_length;
+    public final Entry[] line_number_table;
+
+    public static class Entry {
+        Entry(ClassReader cr) throws IOException {
+            start_pc = cr.readUnsignedShort();
+            line_number = cr.readUnsignedShort();
+        }
+
+        public static int length() {
+            return 4;
+        }
+
+        public final int start_pc;
+        public final int line_number;
+    }
+}