com.google.gwt.resources.gss.CollectAndRemoveConstantDefinitions Maven / Gradle / Ivy
/*
* Copyright 2014 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.gwt.resources.gss;
import com.google.gwt.thirdparty.common.css.compiler.ast.CssCompilerPass;
import com.google.gwt.thirdparty.common.css.compiler.ast.CssDefinitionNode;
import com.google.gwt.thirdparty.common.css.compiler.ast.CssTree;
import com.google.gwt.thirdparty.common.css.compiler.ast.MutatingVisitController;
import com.google.gwt.thirdparty.common.css.compiler.passes.CollectConstantDefinitions;
/**
* A pass that collects the constant definitions inside the tree. This pass removes the constant
* definitions during the collect.
*/
public class CollectAndRemoveConstantDefinitions extends CollectConstantDefinitions
implements CssCompilerPass {
private final MutatingVisitController visitController;
public CollectAndRemoveConstantDefinitions(CssTree tree) {
this(tree.getMutatingVisitController());
}
public CollectAndRemoveConstantDefinitions(MutatingVisitController visitController) {
super(visitController);
this.visitController = visitController;
}
@Override
public boolean enterDefinition(CssDefinitionNode node) {
super.enterDefinition(node);
visitController.removeCurrentNode();
return false;
}
}