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7 | 'use strict'
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8 |
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9 | const getDocsUrl = require('./lib/get-docs-url')
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10 | const isPromise = require('./lib/is-promise')
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11 |
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12 | function isInPromise(context) {
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13 | const expression = context
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14 | .getAncestors()
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15 | .filter(node => node.type === 'ExpressionStatement')[0]
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16 | return expression && expression.expression && isPromise(expression.expression)
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17 | }
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18 |
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19 | module.exports = {
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20 | meta: {
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21 | docs: {
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22 | url: getDocsUrl('no-return-wrap')
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23 | },
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24 | messages: {
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25 | resolve: 'Avoid wrapping return values in Promise.resolve',
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26 | reject: 'Expected throw instead of Promise.reject'
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27 | }
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28 | },
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29 | create(context) {
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30 | const options = context.options[0] || {}
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31 | const allowReject = options.allowReject
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32 |
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33 | return {
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34 | ReturnStatement(node) {
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35 | if (isInPromise(context)) {
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36 | if (node.argument) {
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37 | if (node.argument.type === 'CallExpression') {
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38 | if (node.argument.callee.type === 'MemberExpression') {
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39 | if (node.argument.callee.object.name === 'Promise') {
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40 | if (node.argument.callee.property.name === 'resolve') {
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41 | context.report({ node, messageId: 'resolve' })
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42 | } else if (
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43 | !allowReject &&
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44 | node.argument.callee.property.name === 'reject'
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45 | ) {
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46 | context.report({ node, messageId: 'reject' })
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47 | }
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48 | }
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49 | }
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50 | }
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51 | }
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52 | }
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53 | }
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54 | }
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55 | }
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56 | }
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