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Closure Stylesheets is an extension to CSS that adds variables, functions, conditionals, and mixins to standard CSS. The tool also supports minification, linting, RTL flipping, and CSS class renaming.

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/*
 * Copyright 2011 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 com.google.common.css.SourceCodeLocation;
import com.google.common.css.compiler.ast.CssSelectorNode.Specificity;

/**
 * A {@link CssRefinerNode} implementation that represents a selector for an id.
 * For example: {@code #id}
 *
 * @author [email protected] (Florian Benz)
 */
public class CssIdSelectorNode extends CssRefinerNode {
    public CssIdSelectorNode(String refinerName,
                             SourceCodeLocation sourceCodeLocation) {
        super(Refiner.ID, refinerName, sourceCodeLocation);
    }

    protected CssIdSelectorNode(CssIdSelectorNode node) {
        this(node.refinerName, node.getSourceCodeLocation());
    }

    @Override
    public CssIdSelectorNode deepCopy() {
        return new CssIdSelectorNode(this);
    }

    @Override
    public Specificity getSpecificity() {
        // b++ (b = the number of ID selectors in the selector)
        return new Specificity(1, 0, 0);
    }
}