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82 lines
2.5 KiB
82 lines
2.5 KiB
/** |
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* @author Toru Nagashima |
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* @copyright 2017 Toru Nagashima. All rights reserved. |
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* See LICENSE file in root directory for full license. |
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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: 'enforce valid `v-if` directives', |
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categories: ['vue3-essential', 'essential'], |
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url: 'https://eslint.vuejs.org/rules/valid-v-if.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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withVElse: |
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"'v-if' and 'v-else' directives can't exist on the same element. You may want 'v-else-if' directives.", |
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withVElseIf: |
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"'v-if' and 'v-else-if' directives can't exist on the same element.", |
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unexpectedArgument: "'v-if' directives require no argument.", |
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unexpectedModifier: "'v-if' directives require no modifier.", |
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expectedValue: "'v-if' directives require that attribute value." |
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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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return utils.defineTemplateBodyVisitor(context, { |
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/** @param {VDirective} node */ |
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"VAttribute[directive=true][key.name.name='if']"(node) { |
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const element = node.parent.parent |
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if (utils.hasDirective(element, 'else')) { |
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context.report({ |
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node, |
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messageId: 'withVElse' |
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}) |
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} |
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if (utils.hasDirective(element, 'else-if')) { |
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context.report({ |
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node, |
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messageId: 'withVElseIf' |
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}) |
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} |
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if (node.key.argument) { |
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context.report({ |
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node: node.key.argument, |
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messageId: 'unexpectedArgument' |
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}) |
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} |
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if (node.key.modifiers.length > 0) { |
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context.report({ |
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node, |
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loc: { |
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start: node.key.modifiers[0].loc.start, |
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end: node.key.modifiers[node.key.modifiers.length - 1].loc.end |
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}, |
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messageId: 'unexpectedModifier' |
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}) |
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} |
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if (!node.value || utils.isEmptyValueDirective(node, context)) { |
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context.report({ |
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node, |
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messageId: 'expectedValue' |
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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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