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-rw-r--r--src/proguard/classfile/attribute/LineNumberTableAttribute.java150
1 files changed, 0 insertions, 150 deletions
diff --git a/src/proguard/classfile/attribute/LineNumberTableAttribute.java b/src/proguard/classfile/attribute/LineNumberTableAttribute.java
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--- a/src/proguard/classfile/attribute/LineNumberTableAttribute.java
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-/*
- * ProGuard -- shrinking, optimization, obfuscation, and preverification
- * of Java bytecode.
- *
- * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- * This program 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 for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-package proguard.classfile.attribute;
-
-import proguard.classfile.*;
-import proguard.classfile.attribute.visitor.*;
-
-/**
- * This Attribute represents a line number table attribute.
- *
- * @author Eric Lafortune
- */
-public class LineNumberTableAttribute extends Attribute
-{
- public int u2lineNumberTableLength;
- public LineNumberInfo[] lineNumberTable;
-
-
- /**
- * Creates an uninitialized LineNumberTableAttribute.
- */
- public LineNumberTableAttribute()
- {
- }
-
-
- /**
- * Creates an initialized LineNumberTableAttribute.
- */
- public LineNumberTableAttribute(int u2attributeNameIndex,
- int u2lineNumberTableLength,
- LineNumberInfo[] lineNumberTable)
- {
- super(u2attributeNameIndex);
-
- this.u2lineNumberTableLength = u2lineNumberTableLength;
- this.lineNumberTable = lineNumberTable;
- }
-
-
- /**
- * Returns the line number corresponding to the given byte code program
- * counter.
- */
- public int getLineNumber(int pc)
- {
- for (int index = u2lineNumberTableLength-1 ; index >= 0 ; index--)
- {
- LineNumberInfo info = lineNumberTable[index];
- if (pc >= info.u2startPC)
- {
- return info.u2lineNumber;
- }
- }
-
- return u2lineNumberTableLength > 0 ?
- lineNumberTable[0].u2lineNumber :
- 0;
- }
-
-
- /**
- * Returns the lowest line number, or 0 if there aren't any line numbers.
- */
- public int getLowestLineNumber()
- {
- if (u2lineNumberTableLength == 0)
- {
- return 0;
- }
-
- int lowestLineNumber = Integer.MAX_VALUE;
-
- for (int index = 0; index < u2lineNumberTableLength; index++)
- {
- int lineNumber = lineNumberTable[index].u2lineNumber;
- if (lineNumber < lowestLineNumber)
- {
- lowestLineNumber = lineNumber;
- }
- }
-
- return lowestLineNumber;
- }
-
-
- /**
- * Returns the highest line number, or 0 if there aren't any line numbers.
- */
- public int getHighestLineNumber()
- {
- if (u2lineNumberTableLength == 0)
- {
- return 0;
- }
-
- int highestLineNumber = Integer.MIN_VALUE;
-
- for (int index = 0; index < u2lineNumberTableLength; index++)
- {
- int lineNumber = lineNumberTable[index].u2lineNumber;
- if (lineNumber > highestLineNumber)
- {
- highestLineNumber = lineNumber;
- }
- }
-
- return highestLineNumber;
- }
-
-
- // Implementations for Attribute.
-
- public void accept(Clazz clazz, Method method, CodeAttribute codeAttribute, AttributeVisitor attributeVisitor)
- {
- attributeVisitor.visitLineNumberTableAttribute(clazz, method, codeAttribute, this);
- }
-
-
- /**
- * Applies the given visitor to all line numbers.
- */
- public void lineNumbersAccept(Clazz clazz, Method method, CodeAttribute codeAttribute, LineNumberInfoVisitor lineNumberInfoVisitor)
- {
- for (int index = 0; index < u2lineNumberTableLength; index++)
- {
- // We don't need double dispatching here, since there is only one
- // type of LineNumberInfo.
- lineNumberInfoVisitor.visitLineNumberInfo(clazz, method, codeAttribute, lineNumberTable[index]);
- }
- }
-}