/*******************************************************************************
* Copyright (c) 2008, 2012 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
* Sergey Prigogin (Google)
*******************************************************************************/
package me.pixodro.j2cpp.core.rewrite;
import java.util.List;
import org.eclipse.cdt.core.dom.ast.IASTComment;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.internal.core.dom.rewrite.commenthandler.NodeCommentMap;
/**
* Base class for node writers. This class contains methods and string constants
* used by multiple node writers.
*
* @author Emanuel Graf IFS
*/
public class NodeWriter {
protected Scribe scribe;
protected ASTWriterVisitor visitor;
protected NodeCommentMap commentMap;
protected static final String COMMA_SPACE = ", "; //$NON-NLS-1$
protected static final String EQUALS = " = "; //$NON-NLS-1$
protected static final String SPACE_COLON_SPACE = " : "; //$NON-NLS-1$
protected static final String VAR_ARGS = "..."; //$NON-NLS-1$
protected static final String COLON_COLON = "::"; //$NON-NLS-1$
protected static final String COLON_SPACE = ": "; //$NON-NLS-1$
public NodeWriter(final Scribe scribe, final ASTWriterVisitor visitor, final NodeCommentMap commentMap) {
super();
this.scribe = scribe;
this.visitor = visitor;
this.commentMap = commentMap;
}
protected void writeNodeList(final IASTNode[] nodes) {
for (int i = 0; i < nodes.length; ++i) {
nodes[i].accept(visitor);
if ((i + 1) < nodes.length) {
scribe.print(COMMA_SPACE);
}
}
}
protected void visitNodeIfNotNull(final IASTNode node) {
if (node != null) {
node.accept(visitor);
}
}
protected void writeTrailingComments(final IASTNode node) {
// Default is to write a new line after the trailing comments.
writeTrailingComments(node, true);
}
protected void writeTrailingComments(final IASTNode node, final boolean newLine) {
boolean first = true;
for (final IASTComment comment : getTrailingComments(node)) {
if (!first) {
scribe.newLine();
}
scribe.printSpace();
scribe.print(comment.getComment());
first = false;
}
if (newLine) {
scribe.newLine();
}
}
protected boolean hasTrailingComments(final IASTNode node) {
return !getTrailingComments(node).isEmpty();
}
private List<IASTComment> getTrailingComments(final IASTNode node) {
final List<IASTComment> trailingComments = commentMap.getTrailingCommentsForNode(node);
final IASTNode originalNode = node.getOriginalNode();
if (originalNode != node) {
trailingComments.addAll(commentMap.getTrailingCommentsForNode(originalNode));
}
return trailingComments;
}
protected boolean hasFreestandingComments(final IASTNode node) {
return !getFreestandingComments(node).isEmpty();
}
private List<IASTComment> getFreestandingComments(final IASTNode node) {
final List<IASTComment> freestandingComments = commentMap.getFreestandingCommentsForNode(node);
final IASTNode originalNode = node.getOriginalNode();
if (originalNode != node) {
freestandingComments.addAll(commentMap.getFreestandingCommentsForNode(originalNode));
}
return freestandingComments;
}
protected void writeFreestandingComments(final IASTNode node) {
for (final IASTComment comment : getFreestandingComments(node)) {
scribe.print(comment.getComment());
scribe.newLine();
}
}
}