/*
* Copyright 2009 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.common.css.compiler.ast;
import java.util.List;
/**
* A compiler pass that moves all comments of each {@link CssDefinitionNode}'s children to the
* {@link CssDefinitionNode} itself. (This is to ensure that "@default" annotations are attached
* to the {@link CssDefinitionNode} directly.)
*
*/
public class RelocateDefaultComments extends DefaultTreeVisitor
implements CssCompilerPass {
private final MutatingVisitController visitController;
public RelocateDefaultComments(MutatingVisitController visitController) {
this.visitController = visitController;
}
@Override
public boolean enterDefinition(CssDefinitionNode node) {
//TODO(user): Now it moves up every comment to the CssDefinitionNode.
// Later we should move only the annotations "@default".
List<CssCommentNode> comments = node.getComments();
CssLiteralNode name = node.getName();
List<CssValueNode> params = node.getParameters();
List<CssCommentNode> nameComments = name.getComments();
for (CssCommentNode c : nameComments) {
comments.add(c);
}
nameComments.clear();
for (CssValueNode valueNode : params) {
List<CssCommentNode> commentsList = valueNode.getComments();
for (CssCommentNode c : commentsList) {
comments.add(c);
}
commentsList.clear();
}
return true;
}
@Override
public void runPass() {
visitController.startVisit(this);
}
}