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keksAccountGUI/node_modulesOLD/eslint-plugin-vue/lib/rules/no-template-shadow.js

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2019-08-11 18:48:02 +00:00
/**
* @fileoverview Disallow variable declarations from shadowing variables declared in the outer scope.
* @author Armano
*/
'use strict'
// ------------------------------------------------------------------------------
// Requirements
// ------------------------------------------------------------------------------
const utils = require('../utils')
// ------------------------------------------------------------------------------
// Rule Definition
// ------------------------------------------------------------------------------
const GROUP_NAMES = ['props', 'computed', 'data', 'methods']
module.exports = {
meta: {
type: 'suggestion',
docs: {
description: 'disallow variable declarations from shadowing variables declared in the outer scope',
category: 'strongly-recommended',
url: 'https://eslint.vuejs.org/rules/no-template-shadow.html'
},
fixable: null,
schema: []
},
create (context) {
const jsVars = new Set()
let scope = {
parent: null,
nodes: []
}
// ----------------------------------------------------------------------
// Public
// ----------------------------------------------------------------------
return utils.defineTemplateBodyVisitor(context, {
VElement (node) {
scope = {
parent: scope,
nodes: scope.nodes.slice() // make copy
}
if (node.variables) {
for (const variable of node.variables) {
const varNode = variable.id
const name = varNode.name
if (scope.nodes.some(node => node.name === name) || jsVars.has(name)) {
context.report({
node: varNode,
loc: varNode.loc,
message: "Variable '{{name}}' is already declared in the upper scope.",
data: {
name
}
})
} else {
scope.nodes.push(varNode)
}
}
}
},
'VElement:exit' (node) {
scope = scope.parent
}
}, utils.executeOnVue(context, (obj) => {
const properties = Array.from(utils.iterateProperties(obj, new Set(GROUP_NAMES)))
for (const node of properties) {
jsVars.add(node.name)
}
}))
}
}