@triviality/core/lib/once.js

Purely typed service container

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.once = function (fn) {
    var called = false;
    var hasResult = false;
    var result;
    return function () {
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        if (called) {
            if (hasResult) {
                return result;
            }
            throw new Error('Recursion error');
        }
        called = true;
        result = fn.apply(this, args);
        hasResult = true;
        return result;
    };
};
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