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427 lines
13 KiB
JavaScript
427 lines
13 KiB
JavaScript
/**
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* @fileoverview Enforces consistent naming for boolean props
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* @author Ev Haus
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*/
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'use strict';
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const flatMap = require('array.prototype.flatmap');
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const values = require('object.values');
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const Components = require('../util/Components');
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const propsUtil = require('../util/props');
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const astUtil = require('../util/ast');
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const docsUrl = require('../util/docsUrl');
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const propWrapperUtil = require('../util/propWrapper');
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const report = require('../util/report');
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const eslintUtil = require('../util/eslint');
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const getSourceCode = eslintUtil.getSourceCode;
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const getText = eslintUtil.getText;
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/**
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* Checks if prop is nested
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* @param {Object} prop Property object, single prop type declaration
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* @returns {boolean}
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*/
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function nestedPropTypes(prop) {
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return (
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prop.type === 'Property'
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&& astUtil.isCallExpression(prop.value)
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);
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}
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// ------------------------------------------------------------------------------
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// Rule Definition
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// ------------------------------------------------------------------------------
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const messages = {
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patternMismatch: 'Prop name `{{propName}}` doesn’t match rule `{{pattern}}`',
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};
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/** @type {import('eslint').Rule.RuleModule} */
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module.exports = {
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meta: {
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docs: {
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category: 'Stylistic Issues',
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description: 'Enforces consistent naming for boolean props',
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recommended: false,
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url: docsUrl('boolean-prop-naming'),
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},
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messages,
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schema: [{
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additionalProperties: false,
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properties: {
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propTypeNames: {
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items: {
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type: 'string',
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},
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minItems: 1,
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type: 'array',
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uniqueItems: true,
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},
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rule: {
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default: '^(is|has)[A-Z]([A-Za-z0-9]?)+',
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minLength: 1,
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type: 'string',
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},
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message: {
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minLength: 1,
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type: 'string',
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},
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validateNested: {
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default: false,
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type: 'boolean',
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},
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},
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type: 'object',
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}],
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},
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create: Components.detect((context, components, utils) => {
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const config = context.options[0] || {};
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const rule = config.rule ? new RegExp(config.rule) : null;
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const propTypeNames = config.propTypeNames || ['bool'];
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// Remembers all Flowtype object definitions
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const objectTypeAnnotations = new Map();
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/**
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* Returns the prop key to ensure we handle the following cases:
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* propTypes: {
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* full: React.PropTypes.bool,
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* short: PropTypes.bool,
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* direct: bool,
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* required: PropTypes.bool.isRequired
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* }
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* @param {Object} node The node we're getting the name of
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* @returns {string | null}
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*/
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function getPropKey(node) {
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// Check for `ExperimentalSpreadProperty` (eslint 3/4) and `SpreadElement` (eslint 5)
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// so we can skip validation of those fields.
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// Otherwise it will look for `node.value.property` which doesn't exist and breaks eslint.
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if (node.type === 'ExperimentalSpreadProperty' || node.type === 'SpreadElement') {
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return null;
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}
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if (node.value && node.value.property) {
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const name = node.value.property.name;
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if (name === 'isRequired') {
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if (node.value.object && node.value.object.property) {
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return node.value.object.property.name;
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}
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return null;
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}
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return name;
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}
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if (node.value && node.value.type === 'Identifier') {
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return node.value.name;
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}
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return null;
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}
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/**
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* Returns the name of the given node (prop)
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* @param {Object} node The node we're getting the name of
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* @returns {string}
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*/
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function getPropName(node) {
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// Due to this bug https://github.com/babel/babel-eslint/issues/307
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// we can't get the name of the Flow object key name. So we have
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// to hack around it for now.
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if (node.type === 'ObjectTypeProperty') {
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return getSourceCode(context).getFirstToken(node).value;
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}
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return node.key.name;
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}
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/**
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* Checks if prop is declared in flow way
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* @param {Object} prop Property object, single prop type declaration
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* @returns {boolean}
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*/
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function flowCheck(prop) {
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return (
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prop.type === 'ObjectTypeProperty'
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&& prop.value.type === 'BooleanTypeAnnotation'
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&& rule.test(getPropName(prop)) === false
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);
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}
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/**
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* Checks if prop is declared in regular way
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* @param {Object} prop Property object, single prop type declaration
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* @returns {boolean}
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*/
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function regularCheck(prop) {
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const propKey = getPropKey(prop);
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return (
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propKey
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&& propTypeNames.indexOf(propKey) >= 0
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&& rule.test(getPropName(prop)) === false
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);
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}
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function tsCheck(prop) {
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if (prop.type !== 'TSPropertySignature') return false;
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const typeAnnotation = (prop.typeAnnotation || {}).typeAnnotation;
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return (
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typeAnnotation
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&& typeAnnotation.type === 'TSBooleanKeyword'
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&& rule.test(getPropName(prop)) === false
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);
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}
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/**
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* Runs recursive check on all proptypes
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* @param {Array} proptypes A list of Property object (for each proptype defined)
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* @param {Function} addInvalidProp callback to run for each error
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*/
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function runCheck(proptypes, addInvalidProp) {
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if (proptypes) {
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proptypes.forEach((prop) => {
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if (config.validateNested && nestedPropTypes(prop)) {
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runCheck(prop.value.arguments[0].properties, addInvalidProp);
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return;
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}
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if (flowCheck(prop) || regularCheck(prop) || tsCheck(prop)) {
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addInvalidProp(prop);
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}
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});
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}
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}
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/**
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* Checks and mark props with invalid naming
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* @param {Object} node The component node we're testing
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* @param {Array} proptypes A list of Property object (for each proptype defined)
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*/
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function validatePropNaming(node, proptypes) {
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const component = components.get(node) || node;
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const invalidProps = component.invalidProps || [];
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runCheck(proptypes, (prop) => {
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invalidProps.push(prop);
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});
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components.set(node, {
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invalidProps,
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});
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}
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/**
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* Reports invalid prop naming
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* @param {Object} component The component to process
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*/
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function reportInvalidNaming(component) {
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component.invalidProps.forEach((propNode) => {
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const propName = getPropName(propNode);
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report(context, config.message || messages.patternMismatch, !config.message && 'patternMismatch', {
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node: propNode,
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data: {
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component: propName,
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propName,
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pattern: config.rule,
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},
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});
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});
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}
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function checkPropWrapperArguments(node, args) {
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if (!node || !Array.isArray(args)) {
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return;
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}
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args.filter((arg) => arg.type === 'ObjectExpression').forEach((object) => validatePropNaming(node, object.properties));
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}
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function getComponentTypeAnnotation(component) {
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// If this is a functional component that uses a global type, check it
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if (
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(component.node.type === 'FunctionDeclaration' || component.node.type === 'ArrowFunctionExpression')
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&& component.node.params
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&& component.node.params.length > 0
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&& component.node.params[0].typeAnnotation
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) {
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return component.node.params[0].typeAnnotation.typeAnnotation;
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}
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if (
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!component.node.parent
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|| component.node.parent.type !== 'VariableDeclarator'
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|| !component.node.parent.id
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|| component.node.parent.id.type !== 'Identifier'
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|| !component.node.parent.id.typeAnnotation
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|| !component.node.parent.id.typeAnnotation.typeAnnotation
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) {
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return;
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}
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const annotationTypeArguments = propsUtil.getTypeArguments(
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component.node.parent.id.typeAnnotation.typeAnnotation
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);
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if (
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annotationTypeArguments && (
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annotationTypeArguments.type === 'TSTypeParameterInstantiation'
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|| annotationTypeArguments.type === 'TypeParameterInstantiation'
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)
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) {
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return annotationTypeArguments.params.find(
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(param) => param.type === 'TSTypeReference' || param.type === 'GenericTypeAnnotation'
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);
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}
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}
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function findAllTypeAnnotations(identifier, node) {
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if (node.type === 'TSTypeLiteral' || node.type === 'ObjectTypeAnnotation' || node.type === 'TSInterfaceBody') {
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const currentNode = [].concat(
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objectTypeAnnotations.get(identifier.name) || [],
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node
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);
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objectTypeAnnotations.set(identifier.name, currentNode);
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} else if (
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node.type === 'TSParenthesizedType'
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&& (
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node.typeAnnotation.type === 'TSIntersectionType'
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|| node.typeAnnotation.type === 'TSUnionType'
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)
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) {
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node.typeAnnotation.types.forEach((type) => {
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findAllTypeAnnotations(identifier, type);
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});
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} else if (
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node.type === 'TSIntersectionType'
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|| node.type === 'TSUnionType'
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|| node.type === 'IntersectionTypeAnnotation'
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|| node.type === 'UnionTypeAnnotation'
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) {
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node.types.forEach((type) => {
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findAllTypeAnnotations(identifier, type);
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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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'ClassProperty, PropertyDefinition'(node) {
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if (!rule || !propsUtil.isPropTypesDeclaration(node)) {
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return;
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}
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if (
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node.value
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&& astUtil.isCallExpression(node.value)
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&& propWrapperUtil.isPropWrapperFunction(
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context,
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getText(context, node.value.callee)
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)
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) {
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checkPropWrapperArguments(node, node.value.arguments);
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}
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if (node.value && node.value.properties) {
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validatePropNaming(node, node.value.properties);
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}
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if (node.typeAnnotation && node.typeAnnotation.typeAnnotation) {
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validatePropNaming(node, node.typeAnnotation.typeAnnotation.properties);
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}
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},
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MemberExpression(node) {
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if (!rule || !propsUtil.isPropTypesDeclaration(node)) {
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return;
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}
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const component = utils.getRelatedComponent(node);
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if (!component || !node.parent.right) {
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return;
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}
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const right = node.parent.right;
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if (
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astUtil.isCallExpression(right)
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&& propWrapperUtil.isPropWrapperFunction(
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context,
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getText(context, right.callee)
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)
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) {
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checkPropWrapperArguments(component.node, right.arguments);
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return;
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}
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validatePropNaming(component.node, node.parent.right.properties);
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},
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ObjectExpression(node) {
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if (!rule) {
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return;
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}
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// Search for the proptypes declaration
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node.properties.forEach((property) => {
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if (!propsUtil.isPropTypesDeclaration(property)) {
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return;
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}
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validatePropNaming(node, property.value.properties);
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});
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},
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TypeAlias(node) {
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findAllTypeAnnotations(node.id, node.right);
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},
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TSTypeAliasDeclaration(node) {
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findAllTypeAnnotations(node.id, node.typeAnnotation);
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},
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TSInterfaceDeclaration(node) {
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findAllTypeAnnotations(node.id, node.body);
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},
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// eslint-disable-next-line object-shorthand
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'Program:exit'() {
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if (!rule) {
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return;
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}
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values(components.list()).forEach((component) => {
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const annotation = getComponentTypeAnnotation(component);
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if (annotation) {
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let propType;
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if (annotation.type === 'GenericTypeAnnotation') {
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propType = objectTypeAnnotations.get(annotation.id.name);
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} else if (annotation.type === 'ObjectTypeAnnotation' || annotation.type === 'TSTypeLiteral') {
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propType = annotation;
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} else if (annotation.type === 'TSTypeReference') {
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propType = objectTypeAnnotations.get(annotation.typeName.name);
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} else if (annotation.type === 'TSIntersectionType') {
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propType = flatMap(annotation.types, (type) => (
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type.type === 'TSTypeReference'
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? objectTypeAnnotations.get(type.typeName.name)
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: type
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));
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}
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if (propType) {
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[].concat(propType).filter(Boolean).forEach((prop) => {
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validatePropNaming(
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component.node,
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prop.properties || prop.members || prop.body
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);
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});
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}
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}
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if (component.invalidProps && component.invalidProps.length > 0) {
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reportInvalidNaming(component);
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}
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});
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// Reset cache
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objectTypeAnnotations.clear();
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},
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};
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}),
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};
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