Opal-Estate-Pro/node_modules/postcss/lib/input.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 _cssSyntaxError = require('./css-syntax-error');

var _cssSyntaxError2 = _interopRequireDefault(_cssSyntaxError);

var _previousMap = require('./previous-map');

var _previousMap2 = _interopRequireDefault(_previousMap);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

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"); } }

var sequence = 0;

/**
 * Represents the source CSS.
 *
 * @example
 * const root  = postcss.parse(css, { from: file });
 * const input = root.source.input;
 */

var Input = function () {

    /**
     * @param {string} css    - input CSS source
     * @param {object} [opts] - {@link Processor#process} options
     */
    function Input(css) {
        var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

        _classCallCheck(this, Input);

        /**
         * @member {string} - input CSS source
         *
         * @example
         * const input = postcss.parse('a{}', { from: file }).input;
         * input.css //=> "a{}";
         */
        this.css = css.toString();

        if (this.css[0] === '\uFEFF' || this.css[0] === '\uFFFE') {
            this.css = this.css.slice(1);
        }

        if (opts.from) {
            if (/^\w+:\/\//.test(opts.from)) {
                /**
                 * @member {string} - The absolute path to the CSS source file
                 *                    defined with the `from` option.
                 *
                 * @example
                 * const root = postcss.parse(css, { from: 'a.css' });
                 * root.source.input.file //=> '/home/ai/a.css'
                 */
                this.file = opts.from;
            } else {
                this.file = _path2.default.resolve(opts.from);
            }
        }

        var map = new _previousMap2.default(this.css, opts);
        if (map.text) {
            /**
             * @member {PreviousMap} - The input source map passed from
             *                         a compilation step before PostCSS
             *                         (for example, from Sass compiler).
             *
             * @example
             * root.source.input.map.consumer().sources //=> ['a.sass']
             */
            this.map = map;
            var file = map.consumer().file;
            if (!this.file && file) this.file = this.mapResolve(file);
        }

        if (!this.file) {
            sequence += 1;
            /**
             * @member {string} - The unique ID of the CSS source. It will be
             *                    created if `from` option is not provided
             *                    (because PostCSS does not know the file path).
             *
             * @example
             * const root = postcss.parse(css);
             * root.source.input.file //=> undefined
             * root.source.input.id   //=> "<input css 1>"
             */
            this.id = '<input css ' + sequence + '>';
        }
        if (this.map) this.map.file = this.from;
    }

    Input.prototype.error = function error(message, line, column) {
        var opts = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};

        var result = void 0;
        var origin = this.origin(line, column);
        if (origin) {
            result = new _cssSyntaxError2.default(message, origin.line, origin.column, origin.source, origin.file, opts.plugin);
        } else {
            result = new _cssSyntaxError2.default(message, line, column, this.css, this.file, opts.plugin);
        }

        result.input = { line: line, column: column, source: this.css };
        if (this.file) result.input.file = this.file;

        return result;
    };

    /**
     * Reads the input source map and returns a symbol position
     * in the input source (e.g., in a Sass file that was compiled
     * to CSS before being passed to PostCSS).
     *
     * @param {number} line   - line in input CSS
     * @param {number} column - column in input CSS
     *
     * @return {filePosition} position in input source
     *
     * @example
     * root.source.input.origin(1, 1) //=> { file: 'a.css', line: 3, column: 1 }
     */


    Input.prototype.origin = function origin(line, column) {
        if (!this.map) return false;
        var consumer = this.map.consumer();

        var from = consumer.originalPositionFor({ line: line, column: column });
        if (!from.source) return false;

        var result = {
            file: this.mapResolve(from.source),
            line: from.line,
            column: from.column
        };

        var source = consumer.sourceContentFor(from.source);
        if (source) result.source = source;

        return result;
    };

    Input.prototype.mapResolve = function mapResolve(file) {
        if (/^\w+:\/\//.test(file)) {
            return file;
        } else {
            return _path2.default.resolve(this.map.consumer().sourceRoot || '.', file);
        }
    };

    /**
     * The CSS source identifier. Contains {@link Input#file} if the user
     * set the `from` option, or {@link Input#id} if they did not.
     * @type {string}
     *
     * @example
     * const root = postcss.parse(css, { from: 'a.css' });
     * root.source.input.from //=> "/home/ai/a.css"
     *
     * const root = postcss.parse(css);
     * root.source.input.from //=> "<input css 1>"
     */


    _createClass(Input, [{
        key: 'from',
        get: function get() {
            return this.file || this.id;
        }
    }]);

    return Input;
}();

exports.default = Input;

/**
 * @typedef  {object} filePosition
 * @property {string} file   - path to file
 * @property {number} line   - source line in file
 * @property {number} column - source column in file
 */

module.exports = exports['default'];
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