/
require-emit-validator.js
103 lines (92 loc) · 2.9 KB
/
require-emit-validator.js
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/**
* @fileoverview Emit definitions should be detailed
* @author Pig Fang
*/
'use strict'
const utils = require('../utils')
/**
* @typedef {import('../utils').ComponentArrayEmit} ComponentArrayEmit
* @typedef {import('../utils').ComponentObjectEmit} ComponentObjectEmit
* @typedef {import('../utils').ComponentTypeEmit} ComponentTypeEmit
*/
// ------------------------------------------------------------------------------
// Rule Definition
// ------------------------------------------------------------------------------
module.exports = {
meta: {
type: 'suggestion',
docs: {
description: 'require type definitions in emits',
categories: undefined,
url: 'https://eslint.vuejs.org/rules/require-emit-validator.html'
},
fixable: null,
messages: {
missing: 'Emit "{{name}}" should define at least its validator function.',
skipped:
'Emit "{{name}}" should not skip validation, or you may define a validator function with no parameters.',
emptyValidation: 'Replace with a validator function with no parameters.'
},
schema: []
},
/** @param {RuleContext} context */
create(context) {
// ----------------------------------------------------------------------
// Helpers
// ----------------------------------------------------------------------
/**
* @param {ComponentArrayEmit|ComponentObjectEmit} emit
*/
function checker({ value, node, emitName }) {
const hasType =
!!value &&
(value.type === 'ArrowFunctionExpression' ||
value.type === 'FunctionExpression' ||
// validator may from outer scope
value.type === 'Identifier')
if (!hasType) {
const name =
emitName ||
(node.type === 'Identifier' && node.name) ||
'Unknown emit'
if (value && value.type === 'Literal' && value.value === null) {
context.report({
node,
messageId: 'skipped',
data: { name },
suggest: [
{
messageId: 'emptyValidation',
fix: (fixer) => fixer.replaceText(value, '() => true')
}
]
})
return
}
context.report({
node,
messageId: 'missing',
data: { name }
})
}
}
// ----------------------------------------------------------------------
// Public
// ----------------------------------------------------------------------
return utils.compositingVisitors(
utils.executeOnVue(context, (obj) => {
utils.getComponentEmits(obj).forEach(checker)
}),
utils.defineScriptSetupVisitor(context, {
onDefineEmitsEnter(_node, emits) {
for (const emit of emits) {
if (emit.type === 'type') {
continue
}
checker(emit)
}
}
})
)
}
}