84 lines
2.3 KiB
JavaScript
84 lines
2.3 KiB
JavaScript
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/**
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* @fileoverview Prevent usage of setState
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* @author Mark Dalgleish
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*/
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'use strict';
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const Components = require('../util/Components');
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const docsUrl = require('../util/docsUrl');
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// ------------------------------------------------------------------------------
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// Rule Definition
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// ------------------------------------------------------------------------------
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module.exports = {
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meta: {
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docs: {
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description: 'Prevent usage of setState',
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category: 'Stylistic Issues',
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recommended: false,
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url: docsUrl('no-set-state')
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},
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schema: []
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},
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create: Components.detect((context, components, utils) => {
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/**
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* Checks if the component is valid
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* @param {Object} component The component to process
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* @returns {Boolean} True if the component is valid, false if not.
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*/
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function isValid(component) {
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return Boolean(component && !component.useSetState);
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}
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/**
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* Reports usages of setState for a given component
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* @param {Object} component The component to process
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*/
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function reportSetStateUsages(component) {
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let setStateUsage;
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for (let i = 0, j = component.setStateUsages.length; i < j; i++) {
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setStateUsage = component.setStateUsages[i];
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context.report({
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node: setStateUsage,
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message: 'Do not use setState'
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});
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}
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}
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// --------------------------------------------------------------------------
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// Public
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// --------------------------------------------------------------------------
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return {
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CallExpression(node) {
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const callee = node.callee;
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if (
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callee.type !== 'MemberExpression' ||
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callee.object.type !== 'ThisExpression' ||
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callee.property.name !== 'setState'
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) {
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return;
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}
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const component = components.get(utils.getParentComponent());
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const setStateUsages = component && component.setStateUsages || [];
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setStateUsages.push(callee);
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components.set(node, {
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useSetState: true,
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setStateUsages
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});
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},
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'Program:exit'() {
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const list = components.list();
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Object.keys(list).filter(component => !isValid(list[component])).forEach((component) => {
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reportSetStateUsages(list[component]);
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});
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}
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};
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})
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};
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