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- /**
- * @fileoverview Prevent using string literals in React component definition
- * @author Caleb Morris
- * @author David Buchan-Swanson
- */
- 'use strict';
-
- const docsUrl = require('../util/docsUrl');
-
- // ------------------------------------------------------------------------------
- // Rule Definition
- // ------------------------------------------------------------------------------
-
- module.exports = {
- meta: {
- docs: {
- description: 'Prevent using string literals in React component definition',
- category: 'Stylistic Issues',
- recommended: false,
- url: docsUrl('jsx-no-literals')
- },
-
- schema: [{
- type: 'object',
- properties: {
- noStrings: {
- type: 'boolean'
- }
- },
- additionalProperties: false
- }]
- },
-
- create: function(context) {
- const isNoStrings = context.options[0] ? context.options[0].noStrings : false;
-
- const message = isNoStrings ?
- 'Strings not allowed in JSX files' :
- 'Missing JSX expression container around literal string';
-
- function reportLiteralNode(node) {
- context.report({
- node: node,
- message: message
- });
- }
-
- function getParentIgnoringBinaryExpressions(node) {
- let current = node;
- while (current.parent.type === 'BinaryExpression') {
- current = current.parent;
- }
- return current.parent;
- }
-
- function getValidation(node) {
- const parent = getParentIgnoringBinaryExpressions(node);
- const standard = !/^[\s]+$/.test(node.value) &&
- typeof node.value === 'string' &&
- parent.type.indexOf('JSX') !== -1 &&
- parent.type !== 'JSXAttribute';
- if (isNoStrings) {
- return standard;
- }
- return standard && parent.type !== 'JSXExpressionContainer';
- }
-
- // --------------------------------------------------------------------------
- // Public
- // --------------------------------------------------------------------------
-
- return {
-
- Literal: function(node) {
- if (getValidation(node)) {
- reportLiteralNode(node);
- }
- },
-
- JSXText: function(node) {
- if (getValidation(node)) {
- reportLiteralNode(node);
- }
- },
-
- TemplateLiteral: function(node) {
- const parent = getParentIgnoringBinaryExpressions(node);
- if (isNoStrings && parent.type === 'JSXExpressionContainer') {
- reportLiteralNode(node);
- }
- }
-
- };
- }
- };
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