com.google.common.css.compiler.ast.CssMathNode Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of closure-stylesheets Show documentation

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.

The newest version!

/*
 * 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.common.css.compiler.ast;

import com.google.common.css.SourceCodeLocation;

import javax.annotation.Nullable;

/**
 * A CSS node that holds a mathematical expression. The expression is stored in the value of this
 * node as a whitespace-normalized string. In particular, this means:
 * 
 * No {@code @def} substitution.
 * 
No unit validation. For example, {@code calc(10s + 5px)}, {@code calc(5foo * 1bar)},
 *     etc. compile without error.
 * 
No constant folding. For example, {@code calc(5px + 5px)} and {@code calc(5px/0)} are
 *     output verbatim.
 * 
 *
 * See http://www.w3.org/TR/css3-values/#calc
 *
 */
public class CssMathNode extends CssValueNode {

  public CssMathNode(String contents) {
    super(contents, null);
  }

  public CssMathNode(String contents, @Nullable SourceCodeLocation sourceCodeLocation) {
    super(contents, sourceCodeLocation);
  }

  public CssMathNode deepCopy() {
    return new CssMathNode(this.getValue());
  }
}