1 | ;
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2 |
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3 | var _docsUrl = require('../docsUrl');
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4 |
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5 | var _docsUrl2 = _interopRequireDefault(_docsUrl);
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6 |
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7 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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8 |
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9 | const EXPORT_MESSAGE = 'Expected "export" or "export default"',
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10 | IMPORT_MESSAGE = 'Expected "import" instead of "require()"'; /**
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11 | * @fileoverview Rule to prefer ES6 to CJS
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12 | * @author Jamund Ferguson
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13 | */
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14 |
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15 | function normalizeLegacyOptions(options) {
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16 | if (options.indexOf('allow-primitive-modules') >= 0) {
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17 | return { allowPrimitiveModules: true };
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18 | }
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19 | return options[0] || {};
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20 | }
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21 |
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22 | function allowPrimitive(node, options) {
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23 | if (!options.allowPrimitiveModules) return false;
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24 | if (node.parent.type !== 'AssignmentExpression') return false;
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25 | return node.parent.right.type !== 'ObjectExpression';
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26 | }
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27 |
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28 | function allowRequire(node, options) {
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29 | return options.allowRequire;
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30 | }
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31 |
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32 | //------------------------------------------------------------------------------
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33 | // Rule Definition
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34 | //------------------------------------------------------------------------------
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35 |
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36 | const schemaString = { enum: ['allow-primitive-modules'] };
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37 | const schemaObject = {
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38 | type: 'object',
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39 | properties: {
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40 | allowPrimitiveModules: { 'type': 'boolean' },
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41 | allowRequire: { 'type': 'boolean' }
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42 | },
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43 | additionalProperties: false
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44 | };
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45 |
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46 | module.exports = {
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47 | meta: {
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48 | docs: {
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49 | url: (0, _docsUrl2.default)('no-commonjs')
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50 | },
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51 |
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52 | schema: {
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53 | anyOf: [{
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54 | type: 'array',
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55 | items: [schemaString],
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56 | additionalItems: false
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57 | }, {
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58 | type: 'array',
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59 | items: [schemaObject],
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60 | additionalItems: false
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61 | }]
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62 | }
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63 | },
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64 |
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65 | create: function (context) {
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66 | const options = normalizeLegacyOptions(context.options);
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67 |
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68 | return {
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69 |
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70 | 'MemberExpression': function (node) {
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71 |
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72 | // module.exports
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73 | if (node.object.name === 'module' && node.property.name === 'exports') {
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74 | if (allowPrimitive(node, options)) return;
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75 | context.report({ node, message: EXPORT_MESSAGE });
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76 | }
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77 |
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78 | // exports.
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79 | if (node.object.name === 'exports') {
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80 | const isInScope = context.getScope().variables.some(variable => variable.name === 'exports');
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81 | if (!isInScope) {
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82 | context.report({ node, message: EXPORT_MESSAGE });
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83 | }
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84 | }
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85 | },
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86 | 'CallExpression': function (call) {
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87 | if (context.getScope().type !== 'module') return;
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88 | if (call.parent.type !== 'ExpressionStatement' && call.parent.type !== 'VariableDeclarator') return;
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89 |
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90 | if (call.callee.type !== 'Identifier') return;
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91 | if (call.callee.name !== 'require') return;
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92 |
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93 | if (call.arguments.length !== 1) return;
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94 | var module = call.arguments[0];
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95 |
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96 | if (module.type !== 'Literal') return;
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97 | if (typeof module.value !== 'string') return;
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98 |
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99 | if (allowRequire(call, options)) return;
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100 |
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101 | // keeping it simple: all 1-string-arg `require` calls are reported
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102 | context.report({
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103 | node: call.callee,
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104 | message: IMPORT_MESSAGE
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105 | });
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106 | }
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107 | };
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108 | }
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109 | };
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110 | //# 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