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6 | 'use strict';
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7 |
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8 | const Components = require('../util/Components');
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9 | const docsUrl = require('../util/docsUrl');
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10 |
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12 |
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13 |
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14 |
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15 | module.exports = {
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16 | meta: {
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17 | docs: {
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18 | description: 'Prevent usage of setState',
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19 | category: 'Stylistic Issues',
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20 | recommended: false,
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21 | url: docsUrl('no-set-state')
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22 | },
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23 | schema: []
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24 | },
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25 |
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26 | create: Components.detect((context, components, utils) => {
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27 | |
28 |
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29 |
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30 |
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31 |
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32 | function isValid(component) {
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33 | return Boolean(component && !component.useSetState);
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34 | }
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35 |
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36 | |
37 |
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38 |
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39 |
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40 | function reportSetStateUsages(component) {
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41 | let setStateUsage;
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42 | for (let i = 0, j = component.setStateUsages.length; i < j; i++) {
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43 | setStateUsage = component.setStateUsages[i];
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44 | context.report({
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45 | node: setStateUsage,
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46 | message: 'Do not use setState'
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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 | return {
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56 |
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57 | CallExpression(node) {
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58 | const callee = node.callee;
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59 | if (
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60 | callee.type !== 'MemberExpression'
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61 | || callee.object.type !== 'ThisExpression'
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62 | || callee.property.name !== 'setState'
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63 | ) {
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64 | return;
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65 | }
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66 | const component = components.get(utils.getParentComponent());
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67 | const setStateUsages = component && component.setStateUsages || [];
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68 | setStateUsages.push(callee);
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69 | components.set(node, {
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70 | useSetState: true,
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71 | setStateUsages
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72 | });
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73 | },
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74 |
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75 | 'Program:exit'() {
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76 | const list = components.list();
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77 | Object.keys(list).filter((component) => !isValid(list[component])).forEach((component) => {
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78 | reportSetStateUsages(list[component]);
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79 | });
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80 | }
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81 | };
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82 | })
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83 | };
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