ce4c83ff
 wxy
初始提交
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/**
* @author Toru Nagashima
* @copyright 2016 Toru Nagashima. All rights reserved.
* See LICENSE file in root directory for full license.
*/
"use strict"
//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------
const DEFAULT_VALUE = Object.freeze([".js", ".json", ".node"])
/**
* Gets `tryExtensions` property from a given option object.
*
* @param {object|undefined} option - An option object to get.
* @returns {string[]|null} The `tryExtensions` value, or `null`.
*/
function get(option) {
if (option && option.tryExtensions && Array.isArray(option.tryExtensions)) {
return option.tryExtensions.map(String)
}
return null
}
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
/**
* Gets "tryExtensions" setting.
*
* 1. This checks `options` property, then returns it if exists.
* 2. This checks `settings.node` property, then returns it if exists.
* 3. This returns `[".js", ".json", ".node"]`.
*
* @param {RuleContext} context - The rule context.
* @returns {string[]} A list of extensions.
*/
module.exports = function getTryExtensions(context) {
return (
get(context.options && context.options[0]) ||
get(context.settings && context.settings.node) ||
DEFAULT_VALUE
)
}
module.exports.schema = {
type: "array",
items: {
type: "string",
pattern: "^\\.",
},
uniqueItems: true,
}
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