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/*******************************************************************************
* Copyright (c) 2008 Institute for Software, HSR Hochschule fuer Technik
* Rapperswil, University of applied sciences and others
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Institute for Software - initial API and implementation
******************************************************************************/
package org.eclipse.cdt.internal.core.dom.rewrite.util;
import org.eclipse.cdt.core.dom.ast.IASTFileLocation;
import org.eclipse.cdt.core.dom.ast.IASTMacroExpansionLocation;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.IASTNodeLocation;
import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
/**
* @author Emanuel Graf IFS
*
*/
public class OffsetHelper {
public static int getOffsetIncludingComment(IASTNode node) {
int nodeStart = Integer.MAX_VALUE;
IASTNodeLocation[] nodeLocations = node.getNodeLocations();
if (nodeLocations.length != 1) {
int offset;
for (IASTNodeLocation location : nodeLocations) {
if (location instanceof IASTMacroExpansionLocation) {
IASTMacroExpansionLocation macroLoc = (IASTMacroExpansionLocation) location;
offset = macroLoc.asFileLocation().getNodeOffset();
}else {
offset = location.asFileLocation().getNodeOffset();
}
if(offset < nodeStart) nodeStart = offset;
}
} else {
nodeStart = node.getFileLocation().getNodeOffset();
}
return nodeStart;
}
public static int getEndOffsetIncludingComments(IASTNode node) {
int fileOffset = 0;
int length = 0;
IASTNodeLocation[] nodeLocations = node.getNodeLocations();
if (nodeLocations.length != 1) {
for (IASTNodeLocation location : nodeLocations) {
if (location instanceof IASTMacroExpansionLocation) {
IASTMacroExpansionLocation macroLoc = (IASTMacroExpansionLocation) location;
fileOffset = macroLoc.asFileLocation().getNodeOffset();
length = macroLoc.asFileLocation().getNodeLength();
}else {
fileOffset = location.asFileLocation().getNodeOffset();
length = location.asFileLocation().getNodeLength();
}
}
} else {
IASTFileLocation loc = node.getFileLocation();
fileOffset = loc.getNodeOffset();
length = loc.getNodeLength();
}
return fileOffset + length;
}
public static int getEndOffsetWithoutComments(IASTNode node) {
return node.getFileLocation().getNodeOffset() + node.getFileLocation().getNodeLength();
}
public static int getLengthIncludingComment(IASTNode node) {
return OffsetHelper.getEndOffsetIncludingComments(node) - OffsetHelper.getOffsetIncludingComment(node);
}
public static int getNodeOffset(ASTNode node) {
return node.getOffset();
}
public static int getNodeEndPoint(ASTNode node) {
return node.getOffset() + node.getLength();
}
public static int getStartingLineNumber(IASTNode node) {
return node.getFileLocation().getStartingLineNumber();
}
public static int getEndingLineNumber(IASTNode node) {
return node.getFileLocation().getEndingLineNumber();
}
}
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