80 lines
2.2 KiB
JavaScript
80 lines
2.2 KiB
JavaScript
|
/**
|
||
|
|
* @fileoverview Enforces component's data property to be a function.
|
||
|
|
* @author Armano
|
||
|
|
*/
|
||
|
|
'use strict'
|
||
|
|
|
||
|
|
const utils = require('../utils')
|
||
|
|
|
||
|
|
function isOpenParen (token) {
|
||
|
|
return token.type === 'Punctuator' && token.value === '('
|
||
|
|
}
|
||
|
|
|
||
|
|
function isCloseParen (token) {
|
||
|
|
return token.type === 'Punctuator' && token.value === ')'
|
||
|
|
}
|
||
|
|
|
||
|
|
function getFirstAndLastTokens (node, sourceCode) {
|
||
|
|
let first = sourceCode.getFirstToken(node)
|
||
|
|
let last = sourceCode.getLastToken(node)
|
||
|
|
|
||
|
|
// If the value enclosed by parentheses, update the 'first' and 'last' by the parentheses.
|
||
|
|
while (true) {
|
||
|
|
const prev = sourceCode.getTokenBefore(first)
|
||
|
|
const next = sourceCode.getTokenAfter(last)
|
||
|
|
if (isOpenParen(prev) && isCloseParen(next)) {
|
||
|
|
first = prev
|
||
|
|
last = next
|
||
|
|
} else {
|
||
|
|
return { first, last }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------------
|
||
|
|
// Rule Definition
|
||
|
|
// ------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
module.exports = {
|
||
|
|
meta: {
|
||
|
|
type: 'problem',
|
||
|
|
docs: {
|
||
|
|
description: "enforce component's data property to be a function",
|
||
|
|
category: 'essential',
|
||
|
|
url: 'https://eslint.vuejs.org/rules/no-shared-component-data.html'
|
||
|
|
},
|
||
|
|
fixable: 'code',
|
||
|
|
schema: []
|
||
|
|
},
|
||
|
|
|
||
|
|
create (context) {
|
||
|
|
const sourceCode = context.getSourceCode()
|
||
|
|
|
||
|
|
return utils.executeOnVueComponent(context, (obj) => {
|
||
|
|
obj.properties
|
||
|
|
.filter(p =>
|
||
|
|
p.type === 'Property' &&
|
||
|
|
p.key.type === 'Identifier' &&
|
||
|
|
p.key.name === 'data' &&
|
||
|
|
p.value.type !== 'FunctionExpression' &&
|
||
|
|
p.value.type !== 'ArrowFunctionExpression' &&
|
||
|
|
p.value.type !== 'Identifier'
|
||
|
|
)
|
||
|
|
.forEach(p => {
|
||
|
|
context.report({
|
||
|
|
node: p,
|
||
|
|
message: '`data` property in component must be a function.',
|
||
|
|
fix (fixer) {
|
||
|
|
const tokens = getFirstAndLastTokens(p.value, sourceCode)
|
||
|
|
|
||
|
|
return [
|
||
|
|
fixer.insertTextBefore(tokens.first, 'function() {\nreturn '),
|
||
|
|
fixer.insertTextAfter(tokens.last, ';\n}')
|
||
|
|
]
|
||
|
|
}
|
||
|
|
})
|
||
|
|
})
|
||
|
|
})
|
||
|
|
}
|
||
|
|
}
|