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91 lines
2.6 KiB
91 lines
2.6 KiB
/** |
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* @fileoverview Don't use this in a beforeRouteEnter method |
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* @author Przemyslaw Jan Beigert |
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*/ |
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'use strict' |
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// ------------------------------------------------------------------------------ |
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// Requirements |
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// ------------------------------------------------------------------------------ |
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const utils = require('../utils') |
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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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type: 'problem', |
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docs: { |
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description: 'disallow `this` usage in a `beforeRouteEnter` method', |
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categories: null, |
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url: 'https://eslint.vuejs.org/rules/no-this-in-before-route-enter.html' |
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}, |
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fixable: null, |
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schema: [], |
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messages: { |
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disallow: |
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"'beforeRouteEnter' does NOT have access to `this` component instance. https://router.vuejs.org/guide/advanced/navigation-guards.html#in-component-guards." |
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} |
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}, |
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/** @param {RuleContext} context */ |
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create(context) { |
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/** |
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* @typedef {object} ScopeStack |
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* @property {ScopeStack | null} upper |
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* @property {FunctionExpression | FunctionDeclaration} node |
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* @property {boolean} beforeRouteEnter |
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*/ |
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/** @type {Set<FunctionExpression>} */ |
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const beforeRouteEnterFunctions = new Set() |
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/** @type {ScopeStack | null} */ |
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let scopeStack = null |
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/** |
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* @param {FunctionExpression | FunctionDeclaration | ArrowFunctionExpression} node |
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*/ |
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function onFunctionEnter(node) { |
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if (node.type === 'ArrowFunctionExpression') { |
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return |
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} |
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scopeStack = { |
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upper: scopeStack, |
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node, |
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beforeRouteEnter: beforeRouteEnterFunctions.has( |
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/** @type {never} */ (node) |
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) |
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} |
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} |
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/** |
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* @param {FunctionExpression | FunctionDeclaration | ArrowFunctionExpression} node |
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*/ |
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function onFunctionExit(node) { |
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if (scopeStack && scopeStack.node === node) { |
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scopeStack = scopeStack.upper |
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} |
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} |
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return utils.defineVueVisitor(context, { |
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onVueObjectEnter(node) { |
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const beforeRouteEnter = utils.findProperty(node, 'beforeRouteEnter') |
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if ( |
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beforeRouteEnter && |
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beforeRouteEnter.value.type === 'FunctionExpression' |
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) { |
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beforeRouteEnterFunctions.add(beforeRouteEnter.value) |
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} |
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}, |
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':function': onFunctionEnter, |
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':function:exit': onFunctionExit, |
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ThisExpression(node) { |
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if (scopeStack && scopeStack.beforeRouteEnter) { |
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context.report({ |
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node, |
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messageId: 'disallow' |
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}) |
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} |
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} |
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}) |
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} |
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}
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