lepu-test-platform-web/node_modules/postcss/lib/result.js

'use strict';

exports.__esModule = true;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _warning = require('./warning');

var _warning2 = _interopRequireDefault(_warning);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 * Provides the result of the PostCSS transformations.
 *
 * A Result instance is returned by {@link LazyResult#then}
 * or {@link Root#toResult} methods.
 *
 * @example
 * postcss([cssnext]).process(css).then(function (result) {
 *    console.log(result.css);
 * });
 *
 * @example
 * var result2 = postcss.parse(css).toResult();
 */
var Result = function () {

  /**
   * @param {Processor} processor - processor used for this transformation.
   * @param {Root}      root      - Root node after all transformations.
   * @param {processOptions} opts - options from the {@link Processor#process}
   *                                or {@link Root#toResult}
   */
  function Result(processor, root, opts) {
    _classCallCheck(this, Result);

    /**
     * @member {Processor} - The Processor instance used
     *                       for this transformation.
     *
     * @example
     * for ( let plugin of result.processor.plugins) {
     *   if ( plugin.postcssPlugin === 'postcss-bad' ) {
     *     throw 'postcss-good is incompatible with postcss-bad';
     *   }
     * });
     */
    this.processor = processor;
    /**
     * @member {Message[]} - Contains messages from plugins
     *                       (e.g., warnings or custom messages).
     *                       Each message should have type
     *                       and plugin properties.
     *
     * @example
     * postcss.plugin('postcss-min-browser', () => {
     *   return (root, result) => {
     *     var browsers = detectMinBrowsersByCanIUse(root);
     *     result.messages.push({
     *       type:    'min-browser',
     *       plugin:  'postcss-min-browser',
     *       browsers: browsers
     *     });
     *   };
     * });
     */
    this.messages = [];
    /**
     * @member {Root} - Root node after all transformations.
     *
     * @example
     * root.toResult().root == root;
     */
    this.root = root;
    /**
     * @member {processOptions} - Options from the {@link Processor#process}
     *                            or {@link Root#toResult} call
     *                            that produced this Result instance.
     *
     * @example
     * root.toResult(opts).opts == opts;
     */
    this.opts = opts;
    /**
     * @member {string} - A CSS string representing of {@link Result#root}.
     *
     * @example
     * postcss.parse('a{}').toResult().css //=> "a{}"
     */
    this.css = undefined;
    /**
     * @member {SourceMapGenerator} - An instance of `SourceMapGenerator`
     *                                class from the `source-map` library,
     *                                representing changes
     *                                to the {@link Result#root} instance.
     *
     * @example
     * result.map.toJSON() //=> { version: 3, file: 'a.css', … }
     *
     * @example
     * if ( result.map ) {
     *   fs.writeFileSync(result.opts.to + '.map', result.map.toString());
     * }
     */
    this.map = undefined;
  }

  /**
   * Returns for @{link Result#css} content.
   *
   * @example
   * result + '' === result.css
   *
   * @return {string} string representing of {@link Result#root}
   */


  Result.prototype.toString = function toString() {
    return this.css;
  };

  /**
   * Creates an instance of {@link Warning} and adds it
   * to {@link Result#messages}.
   *
   * @param {string} text        - warning message
   * @param {Object} [opts]      - warning options
   * @param {Node}   opts.node   - CSS node that caused the warning
   * @param {string} opts.word   - word in CSS source that caused the warning
   * @param {number} opts.index  - index in CSS node string that caused
   *                               the warning
   * @param {string} opts.plugin - name of the plugin that created
   *                               this warning. {@link Result#warn} fills
   *                               this property automatically.
   *
   * @return {Warning} created warning
   */


  Result.prototype.warn = function warn(text) {
    var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    if (!opts.plugin) {
      if (this.lastPlugin && this.lastPlugin.postcssPlugin) {
        opts.plugin = this.lastPlugin.postcssPlugin;
      }
    }

    var warning = new _warning2.default(text, opts);
    this.messages.push(warning);

    return warning;
  };

  /**
   * Returns warnings from plugins. Filters {@link Warning} instances
   * from {@link Result#messages}.
   *
   * @example
   * result.warnings().forEach(warn => {
   *   console.warn(warn.toString());
   * });
   *
   * @return {Warning[]} warnings from plugins
   */


  Result.prototype.warnings = function warnings() {
    return this.messages.filter(function (i) {
      return i.type === 'warning';
    });
  };

  /**
   * An alias for the {@link Result#css} property.
   * Use it with syntaxes that generate non-CSS output.
   * @type {string}
   *
   * @example
   * result.css === result.content;
   */


  _createClass(Result, [{
    key: 'content',
    get: function get() {
      return this.css;
    }
  }]);

  return Result;
}();

exports.default = Result;

/**
 * @typedef  {object} Message
 * @property {string} type   - message type
 * @property {string} plugin - source PostCSS plugin name
 */

module.exports = exports['default'];
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