forked from projectmoon/tenebrous-dicebot
69 lines
1.6 KiB
JavaScript
69 lines
1.6 KiB
JavaScript
'use strict';
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const processFn = (fn, options) => function (...args) {
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const P = options.promiseModule;
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return new P((resolve, reject) => {
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if (options.multiArgs) {
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args.push((...result) => {
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if (options.errorFirst) {
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if (result[0]) {
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reject(result);
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} else {
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result.shift();
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resolve(result);
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}
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} else {
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resolve(result);
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}
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});
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} else if (options.errorFirst) {
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args.push((error, result) => {
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if (error) {
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reject(error);
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} else {
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resolve(result);
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}
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});
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} else {
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args.push(resolve);
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}
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fn.apply(this, args);
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});
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};
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module.exports = (input, options) => {
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options = Object.assign({
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exclude: [/.+(Sync|Stream)$/],
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errorFirst: true,
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promiseModule: Promise
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}, options);
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const objType = typeof input;
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if (!(input !== null && (objType === 'object' || objType === 'function'))) {
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throw new TypeError(`Expected \`input\` to be a \`Function\` or \`Object\`, got \`${input === null ? 'null' : objType}\``);
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}
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const filter = key => {
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const match = pattern => typeof pattern === 'string' ? key === pattern : pattern.test(key);
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return options.include ? options.include.some(match) : !options.exclude.some(match);
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};
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let ret;
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if (objType === 'function') {
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ret = function (...args) {
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return options.excludeMain ? input(...args) : processFn(input, options).apply(this, args);
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};
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} else {
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ret = Object.create(Object.getPrototypeOf(input));
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}
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for (const key in input) { // eslint-disable-line guard-for-in
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const property = input[key];
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ret[key] = typeof property === 'function' && filter(key) ? processFn(property, options) : property;
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}
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return ret;
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};
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