webpack-config/dist/ConfigStringResolver.js

Helps to load, extend and merge webpack configs

"use strict";

Object.defineProperty(exports, "__esModule", {
    value: true
});

var _getIterator2 = require("babel-runtime/core-js/get-iterator");

var _getIterator3 = _interopRequireDefault(_getIterator2);

var _weakMap = require("babel-runtime/core-js/weak-map");

var _weakMap2 = _interopRequireDefault(_weakMap);

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

/**
* @private
* @type {WeakMap}
*/
const ENVIRONMENT = new _weakMap2.default();

/**
 * @private
 * @type {WeakMap}
 */
const PATTERN_CACHE = new _weakMap2.default();

/**
 * @class
 */
class ConfigStringResolver {
    /**
     * @constructor
     * @param {ConfigEnvironment} environment
     * @param {ConfigPatternCache} patternCache
     */
    constructor(environment, patternCache) {
        ENVIRONMENT.set(this, environment);
        PATTERN_CACHE.set(this, patternCache);
    }

    /**
     * @readonly
     * @type {ConfigEnvironment}
     */
    get environment() {
        return ENVIRONMENT.get(this);
    }

    /**
     * @readonly
     * @type {ConfigPatternCache}
     */
    get patternCache() {
        return PATTERN_CACHE.get(this);
    }

    /**
     * @param {String} value
     * @returns {String}
     */
    resolve(value) {
        const options = {};

        var _iteratorNormalCompletion = true;
        var _didIteratorError = false;
        var _iteratorError = undefined;

        try {
            for (var _iterator = (0, _getIterator3.default)(this.environment.keys()), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
                const key = _step.value;

                options[key] = this.environment.valueOf(key);
            }
        } catch (err) {
            _didIteratorError = true;
            _iteratorError = err;
        } finally {
            try {
                if (!_iteratorNormalCompletion && _iterator.return) {
                    _iterator.return();
                }
            } finally {
                if (_didIteratorError) {
                    throw _iteratorError;
                }
            }
        }

        let resolvedValue;

        try {
            resolvedValue = this.patternCache.eval(value, options);
        } catch (err) {
            resolvedValue = value;
        }

        return resolvedValue;
    }
}

exports.default = ConfigStringResolver;
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