angular2-hmr/dist/hmr-decorator.js

"use strict";
var hmr_store_1 = require('./hmr-store');
// noop in parentNode
// TODO: find a better way to noop
var _env = typeof process !== 'undefined' &&
    process &&
    process.env &&
    (process.env.ENV ||
        process.env.NODE_ENV);
var _dev = ((_env &&
    typeof _env === 'string' &&
    (_env.indexOf('dev') > -1)) ||
    _env === undefined);
function setDev(newDev) {
    if (typeof newDev === 'string') {
        return _dev = (newDev.indexOf('dev') > -1);
    }
    else if (typeof newDev === 'boolean') {
        return _dev = newDev;
    }
    throw new Error('Please provide a string or boolean');
}
exports.setDev = setDev;
function HmrState(namespaceOrConfig, config) {
    function decoratorFactory(target, decoratedPropertyName, descriptor) {
        if (!_dev) {
            return descriptor;
        }
        var key = namespaceOrConfig || target.constructor.name + '#' + decoratedPropertyName;
        hmr_store_1.HmrStore.select(key, function () { return hmr_store_1.HmrStore.get(key); });
        Object.defineProperty(target, decoratedPropertyName, {
            get: function () { return hmr_store_1.HmrStore.get(key); },
            set: function (newValue) {
                var currentValue = hmr_store_1.HmrStore.get(key);
                if (!currentValue) {
                    hmr_store_1.HmrStore._initialValues[key] = newValue;
                }
                else {
                    newValue = Object.assign(newValue, currentValue);
                }
                return hmr_store_1.HmrStore.set(key, newValue);
            },
            enumerable: true,
            configurable: true
        });
        return descriptor;
    }
    return decoratorFactory;
}
exports.HmrState = HmrState;
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