48 lines
1.2 KiB
JavaScript
48 lines
1.2 KiB
JavaScript
/**
|
|
* @author Toru Nagashima
|
|
* See LICENSE file in root directory for full license.
|
|
*/
|
|
"use strict"
|
|
|
|
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
|
|
}
|
|
|
|
/**
|
|
* 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, optionIndex = 0) {
|
|
return (
|
|
get(context.options && context.options[optionIndex]) ||
|
|
get(context.settings && context.settings.node) ||
|
|
DEFAULT_VALUE
|
|
)
|
|
}
|
|
|
|
module.exports.schema = {
|
|
type: "array",
|
|
items: {
|
|
type: "string",
|
|
pattern: "^\\.",
|
|
},
|
|
uniqueItems: true,
|
|
}
|