onions/lib/index.js

 # Onions 

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.compose = void 0;
const compose = (middlewares) => {
    if (typeof middlewares === 'function')
        return middlewares;
    if (middlewares.length === 0)
        return (next) => (...args) => next(...args);
    if (middlewares.length === 1)
        return middlewares[0];
    return middlewares.reduce((a, b) => (...args) => a(b(...args)));
};
exports.compose = compose;
function onions(target, befores = [], afters = []) {
    if (Array.isArray(target))
        return onions(undefined, target);
    const wrapBefore = exports.compose(befores);
    const wrapAfter = exports.compose(afters);
    return function (...args) {
        const wrapf = (resolve, reject) => wrapBefore((...params) => __awaiter(this, void 0, void 0, function* () {
            let result = [...params];
            if (Object.prototype.toString.call(target).substr(-9, 8) === 'Function') {
                try {
                    result = yield target.call(this, ...params);
                }
                catch (err) {
                    reject(err);
                }
                ;
            }
            ;
            wrapAfter(() => resolve(result))(...params);
        }))(...args);
        return new Promise(wrapf);
    };
}
exports.default = onions;
;
//# sourceMappingURL=index.js.map