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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 2008 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 javax.annotation.Nullable;

/**
 * A CSS node containing a numeric value such as height, width, length,
 * or percentage values.
 *
 * @author [email protected] (Oana Florescu)
 */
public class CssNumericNode extends CssValueNode {

    /**
     * The numeric value of the node.
     */
    private String numericPart;
    /**
     * The unit for this numeric value.
     */
    private String unit;
    /**
     * Constant value for the units field for a node without units.
     */
    public static final String NO_UNITS = "";

    /**
     * Constructor of a numeric node.
     *
     * @param value value
     * @param unit  unit
     */
    public CssNumericNode(String value,
                          String unit) {
        this(value, unit, null);
    }

    /**
     * Constructor of a numeric node.
     *
     * @param value              value
     * @param unit               unit
     * @param sourceCodeLocation sourceCodeLocation
     */
    public CssNumericNode(String value,
                          String unit,
                          @Nullable SourceCodeLocation sourceCodeLocation) {
        super(null, sourceCodeLocation);
        this.numericPart = value;
        this.unit = unit;
    }

    /**
     * Copy constructor.
     *
     * @param node node
     */
    public CssNumericNode(CssNumericNode node) {
        super(node);
        this.numericPart = node.getNumericPart();
        this.unit = node.getUnit();
    }

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

    public String getUnit() {
        return unit;
    }

    public void setUnit(String unit) {
        this.unit = unit;
    }

    public String getNumericPart() {
        return numericPart;
    }

    public void setNumericPart(String numericPart) {
        this.numericPart = numericPart;
    }

    @Override
    public void setValue(String value) {
        throw new UnsupportedOperationException(  // COV_NF_LINE
                "Use setNumericPart and setUnit to update a NumericValue.");
    }

    @Override
    public String getValue() {
        return getNumericPart() + getUnit();
    }

    @Override
    public String toString() {
        return getValue();
    }
}