GoScrobble/web/node_modules/postcss/lib/lazy-result.js

"use strict";

exports.__esModule = true;
exports.default = void 0;

var _mapGenerator = _interopRequireDefault(require("./map-generator"));

var _stringify2 = _interopRequireDefault(require("./stringify"));

var _warnOnce = _interopRequireDefault(require("./warn-once"));

var _result = _interopRequireDefault(require("./result"));

var _parse = _interopRequireDefault(require("./parse"));

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

function _createForOfIteratorHelperLoose(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; return function () { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } it = o[Symbol.iterator](); return it.next.bind(it); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

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); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function isPromise(obj) {
  return typeof obj === 'object' && typeof obj.then === 'function';
}
/**
 * A Promise proxy for the result of PostCSS transformations.
 *
 * A `LazyResult` instance is returned by {@link Processor#process}.
 *
 * @example
 * const lazy = postcss([autoprefixer]).process(css)
 */


var LazyResult = /*#__PURE__*/function () {
  function LazyResult(processor, css, opts) {
    this.stringified = false;
    this.processed = false;
    var root;

    if (typeof css === 'object' && css !== null && css.type === 'root') {
      root = css;
    } else if (css instanceof LazyResult || css instanceof _result.default) {
      root = css.root;

      if (css.map) {
        if (typeof opts.map === 'undefined') opts.map = {};
        if (!opts.map.inline) opts.map.inline = false;
        opts.map.prev = css.map;
      }
    } else {
      var parser = _parse.default;
      if (opts.syntax) parser = opts.syntax.parse;
      if (opts.parser) parser = opts.parser;
      if (parser.parse) parser = parser.parse;

      try {
        root = parser(css, opts);
      } catch (error) {
        this.error = error;
      }
    }

    this.result = new _result.default(processor, root, opts);
  }
  /**
   * Returns a {@link Processor} instance, which will be used
   * for CSS transformations.
   *
   * @type {Processor}
   */


  var _proto = LazyResult.prototype;

  /**
   * Processes input CSS through synchronous plugins
   * and calls {@link Result#warnings()}.
   *
   * @return {Warning[]} Warnings from plugins.
   */
  _proto.warnings = function warnings() {
    return this.sync().warnings();
  }
  /**
   * Alias for the {@link LazyResult#css} property.
   *
   * @example
   * lazy + '' === lazy.css
   *
   * @return {string} Output CSS.
   */
  ;

  _proto.toString = function toString() {
    return this.css;
  }
  /**
   * Processes input CSS through synchronous and asynchronous plugins
   * and calls `onFulfilled` with a Result instance. If a plugin throws
   * an error, the `onRejected` callback will be executed.
   *
   * It implements standard Promise API.
   *
   * @param {onFulfilled} onFulfilled Callback will be executed
   *                                  when all plugins will finish work.
   * @param {onRejected}  onRejected  Callback will be executed on any error.
   *
   * @return {Promise} Promise API to make queue.
   *
   * @example
   * postcss([autoprefixer]).process(css, { from: cssPath }).then(result => {
   *   console.log(result.css)
   * })
   */
  ;

  _proto.then = function then(onFulfilled, onRejected) {
    if (process.env.NODE_ENV !== 'production') {
      if (!('from' in this.opts)) {
        (0, _warnOnce.default)('Without `from` option PostCSS could generate wrong source map ' + 'and will not find Browserslist config. Set it to CSS file path ' + 'or to `undefined` to prevent this warning.');
      }
    }

    return this.async().then(onFulfilled, onRejected);
  }
  /**
   * Processes input CSS through synchronous and asynchronous plugins
   * and calls onRejected for each error thrown in any plugin.
   *
   * It implements standard Promise API.
   *
   * @param {onRejected} onRejected Callback will be executed on any error.
   *
   * @return {Promise} Promise API to make queue.
   *
   * @example
   * postcss([autoprefixer]).process(css).then(result => {
   *   console.log(result.css)
   * }).catch(error => {
   *   console.error(error)
   * })
   */
  ;

  _proto.catch = function _catch(onRejected) {
    return this.async().catch(onRejected);
  }
  /**
   * Processes input CSS through synchronous and asynchronous plugins
   * and calls onFinally on any error or when all plugins will finish work.
   *
   * It implements standard Promise API.
   *
   * @param {onFinally} onFinally Callback will be executed on any error or
   *                              when all plugins will finish work.
   *
   * @return {Promise} Promise API to make queue.
   *
   * @example
   * postcss([autoprefixer]).process(css).finally(() => {
   *   console.log('processing ended')
   * })
   */
  ;

  _proto.finally = function _finally(onFinally) {
    return this.async().then(onFinally, onFinally);
  };

  _proto.handleError = function handleError(error, plugin) {
    try {
      this.error = error;

      if (error.name === 'CssSyntaxError' && !error.plugin) {
        error.plugin = plugin.postcssPlugin;
        error.setMessage();
      } else if (plugin.postcssVersion) {
        if (process.env.NODE_ENV !== 'production') {
          var pluginName = plugin.postcssPlugin;
          var pluginVer = plugin.postcssVersion;
          var runtimeVer = this.result.processor.version;
          var a = pluginVer.split('.');
          var b = runtimeVer.split('.');

          if (a[0] !== b[0] || parseInt(a[1]) > parseInt(b[1])) {
            console.error('Unknown error from PostCSS plugin. Your current PostCSS ' + 'version is ' + runtimeVer + ', but ' + pluginName + ' uses ' + pluginVer + '. Perhaps this is the source of the error below.');
          }
        }
      }
    } catch (err) {
      if (console && console.error) console.error(err);
    }
  };

  _proto.asyncTick = function asyncTick(resolve, reject) {
    var _this = this;

    if (this.plugin >= this.processor.plugins.length) {
      this.processed = true;
      return resolve();
    }

    try {
      var plugin = this.processor.plugins[this.plugin];
      var promise = this.run(plugin);
      this.plugin += 1;

      if (isPromise(promise)) {
        promise.then(function () {
          _this.asyncTick(resolve, reject);
        }).catch(function (error) {
          _this.handleError(error, plugin);

          _this.processed = true;
          reject(error);
        });
      } else {
        this.asyncTick(resolve, reject);
      }
    } catch (error) {
      this.processed = true;
      reject(error);
    }
  };

  _proto.async = function async() {
    var _this2 = this;

    if (this.processed) {
      return new Promise(function (resolve, reject) {
        if (_this2.error) {
          reject(_this2.error);
        } else {
          resolve(_this2.stringify());
        }
      });
    }

    if (this.processing) {
      return this.processing;
    }

    this.processing = new Promise(function (resolve, reject) {
      if (_this2.error) return reject(_this2.error);
      _this2.plugin = 0;

      _this2.asyncTick(resolve, reject);
    }).then(function () {
      _this2.processed = true;
      return _this2.stringify();
    });
    return this.processing;
  };

  _proto.sync = function sync() {
    if (this.processed) return this.result;
    this.processed = true;

    if (this.processing) {
      throw new Error('Use process(css).then(cb) to work with async plugins');
    }

    if (this.error) throw this.error;

    for (var _iterator = _createForOfIteratorHelperLoose(this.result.processor.plugins), _step; !(_step = _iterator()).done;) {
      var plugin = _step.value;
      var promise = this.run(plugin);

      if (isPromise(promise)) {
        throw new Error('Use process(css).then(cb) to work with async plugins');
      }
    }

    return this.result;
  };

  _proto.run = function run(plugin) {
    this.result.lastPlugin = plugin;

    try {
      return plugin(this.result.root, this.result);
    } catch (error) {
      this.handleError(error, plugin);
      throw error;
    }
  };

  _proto.stringify = function stringify() {
    if (this.stringified) return this.result;
    this.stringified = true;
    this.sync();
    var opts = this.result.opts;
    var str = _stringify2.default;
    if (opts.syntax) str = opts.syntax.stringify;
    if (opts.stringifier) str = opts.stringifier;
    if (str.stringify) str = str.stringify;
    var map = new _mapGenerator.default(str, this.result.root, this.result.opts);
    var data = map.generate();
    this.result.css = data[0];
    this.result.map = data[1];
    return this.result;
  };

  _createClass(LazyResult, [{
    key: "processor",
    get: function get() {
      return this.result.processor;
    }
    /**
     * Options from the {@link Processor#process} call.
     *
     * @type {processOptions}
     */

  }, {
    key: "opts",
    get: function get() {
      return this.result.opts;
    }
    /**
     * Processes input CSS through synchronous plugins, converts `Root`
     * to a CSS string and returns {@link Result#css}.
     *
     * This property will only work with synchronous plugins.
     * If the processor contains any asynchronous plugins
     * it will throw an error. This is why this method is only
     * for debug purpose, you should always use {@link LazyResult#then}.
     *
     * @type {string}
     * @see Result#css
     */

  }, {
    key: "css",
    get: function get() {
      return this.stringify().css;
    }
    /**
     * An alias for the `css` property. Use it with syntaxes
     * that generate non-CSS output.
     *
     * This property will only work with synchronous plugins.
     * If the processor contains any asynchronous plugins
     * it will throw an error. This is why this method is only
     * for debug purpose, you should always use {@link LazyResult#then}.
     *
     * @type {string}
     * @see Result#content
     */

  }, {
    key: "content",
    get: function get() {
      return this.stringify().content;
    }
    /**
     * Processes input CSS through synchronous plugins
     * and returns {@link Result#map}.
     *
     * This property will only work with synchronous plugins.
     * If the processor contains any asynchronous plugins
     * it will throw an error. This is why this method is only
     * for debug purpose, you should always use {@link LazyResult#then}.
     *
     * @type {SourceMapGenerator}
     * @see Result#map
     */

  }, {
    key: "map",
    get: function get() {
      return this.stringify().map;
    }
    /**
     * Processes input CSS through synchronous plugins
     * and returns {@link Result#root}.
     *
     * This property will only work with synchronous plugins. If the processor
     * contains any asynchronous plugins it will throw an error.
     *
     * This is why this method is only for debug purpose,
     * you should always use {@link LazyResult#then}.
     *
     * @type {Root}
     * @see Result#root
     */

  }, {
    key: "root",
    get: function get() {
      return this.sync().root;
    }
    /**
     * Processes input CSS through synchronous plugins
     * and returns {@link Result#messages}.
     *
     * This property will only work with synchronous plugins. If the processor
     * contains any asynchronous plugins it will throw an error.
     *
     * This is why this method is only for debug purpose,
     * you should always use {@link LazyResult#then}.
     *
     * @type {Message[]}
     * @see Result#messages
     */

  }, {
    key: "messages",
    get: function get() {
      return this.sync().messages;
    }
  }]);

  return LazyResult;
}();

var _default = LazyResult;
/**
 * @callback onFulfilled
 * @param {Result} result
 */

/**
 * @callback onRejected
 * @param {Error} error
 */

exports.default = _default;
module.exports = exports.default;
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