styled-components/lib/vendor/postcss/root.js

Visual primitives for the component age. Use the best bits of ES6 and CSS to style your apps without stress 💅

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: 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 _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };

require('./rule');

var _container = require('./container');

var _container2 = _interopRequireDefault(_container);

var _lazyResult = require('./lazy-result');

var _lazyResult2 = _interopRequireDefault(_lazyResult);

var _processor = require('./processor');

var _processor2 = _interopRequireDefault(_processor);

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

var _warnOnce2 = _interopRequireDefault(_warnOnce);

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"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // break cyclical dependency deadlock – #87

/**
 * Represents a CSS file and contains all its parsed nodes.
 *
 * @extends Container
 *
 * @example
 * const root = postcss.parse('a{color:black} b{z-index:2}');
 * root.type         //=> 'root'
 * root.nodes.length //=> 2
 */
var Root = function (_Container) {
    _inherits(Root, _Container);

    function Root(defaults) {
        _classCallCheck(this, Root);

        var _this = _possibleConstructorReturn(this, (Root.__proto__ || Object.getPrototypeOf(Root)).call(this, defaults));

        _this.type = 'root';
        if (!_this.nodes) _this.nodes = [];
        return _this;
    }

    _createClass(Root, [{
        key: 'removeChild',
        value: function removeChild(child) {
            child = this.index(child);

            if (child === 0 && this.nodes.length > 1) {
                this.nodes[1].raws.before = this.nodes[child].raws.before;
            }

            return _get(Root.prototype.__proto__ || Object.getPrototypeOf(Root.prototype), 'removeChild', this).call(this, child);
        }
    }, {
        key: 'normalize',
        value: function normalize(child, sample, type) {
            var nodes = _get(Root.prototype.__proto__ || Object.getPrototypeOf(Root.prototype), 'normalize', this).call(this, child);

            if (sample) {
                if (type === 'prepend') {
                    if (this.nodes.length > 1) {
                        sample.raws.before = this.nodes[1].raws.before;
                    } else {
                        delete sample.raws.before;
                    }
                } else if (this.first !== sample) {
                    nodes.forEach(function (node) {
                        node.raws.before = sample.raws.before;
                    });
                }
            }

            return nodes;
        }

        /**
         * Returns a {@link Result} instance representing the root’s CSS.
         *
         * @param {processOptions} [opts] - options with only `to` and `map` keys
         *
         * @return {Result} result with current root’s CSS
         *
         * @example
         * const root1 = postcss.parse(css1, { from: 'a.css' });
         * const root2 = postcss.parse(css2, { from: 'b.css' });
         * root1.append(root2);
         * const result = root1.toResult({ to: 'all.css', map: true });
         */

    }, {
        key: 'toResult',
        value: function toResult() {
            var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

            var lazy = new _lazyResult2.default(new _processor2.default(), this, opts);
            return lazy.stringify();
        }
    }, {
        key: 'remove',
        value: function remove(child) {
            (0, _warnOnce2.default)('Root#remove is deprecated. Use Root#removeChild');
            this.removeChild(child);
        }
    }, {
        key: 'prevMap',
        value: function prevMap() {
            (0, _warnOnce2.default)('Root#prevMap is deprecated. Use Root#source.input.map');
            return this.source.input.map;
        }

        /**
         * @memberof Root#
         * @member {object} raws - Information to generate byte-to-byte equal
         *                         node string as it was in the origin input.
         *
         * Every parser saves its own properties,
         * but the default CSS parser uses:
         *
         * * `after`: the space symbols after the last child to the end of file.
         * * `semicolon`: is the last child has an (optional) semicolon.
         *
         * @example
         * postcss.parse('a {}\n').raws //=> { after: '\n' }
         * postcss.parse('a {}').raws   //=> { after: '' }
         */

    }]);

    return Root;
}(_container2.default);

exports.default = Root;
module.exports = exports['default'];