1 | 'use strict';
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2 |
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3 | const processFn = (fn, options) => function (...args) {
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4 | const P = options.promiseModule;
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5 |
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6 | return new P((resolve, reject) => {
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7 | if (options.multiArgs) {
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8 | args.push((...result) => {
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9 | if (options.errorFirst) {
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10 | if (result[0]) {
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11 | reject(result);
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12 | } else {
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13 | result.shift();
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14 | resolve(result);
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15 | }
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16 | } else {
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17 | resolve(result);
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18 | }
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19 | });
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20 | } else if (options.errorFirst) {
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21 | args.push((error, result) => {
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22 | if (error) {
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23 | reject(error);
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24 | } else {
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25 | resolve(result);
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26 | }
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27 | });
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28 | } else {
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29 | args.push(resolve);
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30 | }
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31 |
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32 | fn.apply(this, args);
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33 | });
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34 | };
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35 |
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36 | module.exports = (input, options) => {
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37 | options = Object.assign({
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38 | exclude: [/.+(Sync|Stream)$/],
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39 | errorFirst: true,
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40 | promiseModule: Promise
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41 | }, options);
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42 |
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43 | const objType = typeof input;
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44 | if (!(input !== null && (objType === 'object' || objType === 'function'))) {
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45 | throw new TypeError(`Expected \`input\` to be a \`Function\` or \`Object\`, got \`${input === null ? 'null' : objType}\``);
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46 | }
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47 |
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48 | const filter = key => {
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49 | const match = pattern => typeof pattern === 'string' ? key === pattern : pattern.test(key);
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50 | return options.include ? options.include.some(match) : !options.exclude.some(match);
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51 | };
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52 |
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53 | let ret;
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54 | if (objType === 'function') {
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55 | ret = function (...args) {
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56 | return options.excludeMain ? input(...args) : processFn(input, options).apply(this, args);
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57 | };
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58 | } else {
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59 | ret = Object.create(Object.getPrototypeOf(input));
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60 | }
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61 |
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62 | for (const key in input) { // eslint-disable-line guard-for-in
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63 | const property = input[key];
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64 | ret[key] = typeof property === 'function' && filter(key) ? processFn(property, options) : property;
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65 | }
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66 |
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67 | return ret;
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68 | };
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