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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.astwriter;
import org.eclipse.cdt.core.dom.ast.IASTName;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTConversionName;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTQualifiedName;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTTemplateId;
import org.eclipse.cdt.internal.core.dom.parser.cpp.CPPTemplateTypeParameter;
import org.eclipse.cdt.internal.core.dom.rewrite.commenthandler.NodeCommentMap;
/**
* Generates source code of name nodes. The actual string operations are delegated
* to the <code>Scribe</code> class.
*
* @see Scribe
* @see IASTName
* @author Emanuel Graf IFS
*/
public class NameWriter extends NodeWriter {
private static final String OPERATOR = "operator "; //$NON-NLS-1$
/**
* @param scribe
* @param visitor
*/
public NameWriter(Scribe scribe, ASTWriterVisitor visitor, NodeCommentMap commentMap) {
super(scribe, visitor, commentMap);
}
protected void writeName(IASTName name) {
if (name instanceof ICPPASTTemplateId) {
writeTempalteId((ICPPASTTemplateId) name);
} else if (name instanceof ICPPASTConversionName) {
scribe.print(OPERATOR);
((ICPPASTConversionName) name).getTypeId().accept(visitor);
} else if (name instanceof ICPPASTQualifiedName){
writeQualifiedName((ICPPASTQualifiedName) name);
} else {
scribe.print(name.toString());
}
if (hasTrailingComments(name)) {
writeTrailingComments(name);
}
}
private void writeTempalteId(ICPPASTTemplateId tempId) {
if (needsTemplateQualifier(tempId)) {
scribe.print(TEMPLATE);
}
scribe.print(tempId.getTemplateName().toString());
scribe.print('<');
IASTNode[] nodes = tempId.getTemplateArguments();
for (int i = 0; i < nodes.length; ++i) {
nodes[i].accept(visitor);
if (i + 1 < nodes.length) {
scribe.print(',');
}
}
scribe.print('>');
if (isNestedTemplateId(tempId)) {
scribe.printSpace();
}
}
private boolean needsTemplateQualifier(ICPPASTTemplateId templId){
if (templId.getParent() instanceof ICPPASTQualifiedName) {
ICPPASTQualifiedName qName = (ICPPASTQualifiedName) templId.getParent();
return isDependentName(qName, templId);
}
return false;
}
private boolean isDependentName(ICPPASTQualifiedName qname, ICPPASTTemplateId tempId) {
IASTName[] names = qname.getNames();
for (int i = 0; i < names.length; ++i){
if (names[i] == tempId){
return isDependentName(qname, tempId, i);
}
}
return false;
}
private boolean isDependentName(ICPPASTQualifiedName qname, ICPPASTTemplateId tempId, int i) {
if (i <= 0){
return false;
}
if (qname.getNames()[i-1] instanceof ICPPASTTemplateId) {
return true;
}
IBinding binding = qname.getNames()[i-1].resolveBinding();
if (binding instanceof CPPTemplateTypeParameter) {
return true;
}
return isDependentName(qname, tempId, i-1);
}
private boolean isNestedTemplateId(IASTNode node) {
while ((node = node.getParent()) != null) {
if (node instanceof ICPPASTTemplateId) {
return true;
}
}
return false;
}
private void writeQualifiedName(ICPPASTQualifiedName qname) {
IASTName[] nodes = qname.getNames();
for (int i = 0; i < nodes.length; ++i) {
nodes[i].accept(visitor);
if (i + 1 < nodes.length) {
scribe.print(COLON_COLON);
}
}
}
}
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