/**
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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: 'suggestion',
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docs: {
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description: 'enforce `v-bind` directive style',
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categories: ['vue3-strongly-recommended', 'strongly-recommended'],
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url: 'https://eslint.vuejs.org/rules/v-bind-style.html'
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},
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fixable: 'code',
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schema: [{ enum: ['shorthand', 'longform'] }]
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},
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/** @param {RuleContext} context */
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create(context) {
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const preferShorthand = context.options[0] !== 'longform'
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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='bind'][key.argument!=null]"(
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node
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) {
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const shorthandProp = node.key.name.rawName === '.'
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const shorthand = node.key.name.rawName === ':' || shorthandProp
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if (shorthand === preferShorthand) {
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return
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}
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context.report({
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node,
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loc: node.loc,
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message: preferShorthand
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? "Unexpected 'v-bind' before ':'."
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: shorthandProp
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? "Expected 'v-bind:' instead of '.'."
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: /* otherwise */ "Expected 'v-bind' before ':'.",
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*fix(fixer) {
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if (preferShorthand) {
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yield fixer.remove(node.key.name)
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} else {
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yield fixer.insertTextBefore(node, 'v-bind')
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if (shorthandProp) {
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// Replace `.` by `:`.
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yield fixer.replaceText(node.key.name, ':')
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// Insert `.prop` modifier if it doesn't exist.
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const modifier = node.key.modifiers[0]
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const isAutoGeneratedPropModifier =
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modifier.name === 'prop' && modifier.rawName === ''
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if (isAutoGeneratedPropModifier) {
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yield fixer.insertTextBefore(modifier, '.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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}
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})
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}
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}
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