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Diffstat (limited to 'tools/node_modules/eslint/node_modules/inquirer/lib/objects/choices.js')
-rw-r--r-- | tools/node_modules/eslint/node_modules/inquirer/lib/objects/choices.js | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/tools/node_modules/eslint/node_modules/inquirer/lib/objects/choices.js b/tools/node_modules/eslint/node_modules/inquirer/lib/objects/choices.js new file mode 100644 index 0000000000..41a36293cd --- /dev/null +++ b/tools/node_modules/eslint/node_modules/inquirer/lib/objects/choices.js @@ -0,0 +1,112 @@ +'use strict'; +var assert = require('assert'); +var _ = require('lodash'); +var Separator = require('./separator'); +var Choice = require('./choice'); + +/** + * Choices collection + * Collection of multiple `choice` object + * @constructor + * @param {Array} choices All `choice` to keep in the collection + */ + +var Choices = module.exports = function (choices, answers) { + this.choices = choices.map(function (val) { + if (val.type === 'separator') { + if (!(val instanceof Separator)) { + val = new Separator(val.line); + } + return val; + } + return new Choice(val, answers); + }); + + this.realChoices = this.choices + .filter(Separator.exclude) + .filter(function (item) { + return !item.disabled; + }); + + Object.defineProperty(this, 'length', { + get: function () { + return this.choices.length; + }, + set: function (val) { + this.choices.length = val; + } + }); + + Object.defineProperty(this, 'realLength', { + get: function () { + return this.realChoices.length; + }, + set: function () { + throw new Error('Cannot set `realLength` of a Choices collection'); + } + }); +}; + +/** + * Get a valid choice from the collection + * @param {Number} selector The selected choice index + * @return {Choice|Undefined} Return the matched choice or undefined + */ + +Choices.prototype.getChoice = function (selector) { + assert(_.isNumber(selector)); + return this.realChoices[selector]; +}; + +/** + * Get a raw element from the collection + * @param {Number} selector The selected index value + * @return {Choice|Undefined} Return the matched choice or undefined + */ + +Choices.prototype.get = function (selector) { + assert(_.isNumber(selector)); + return this.choices[selector]; +}; + +/** + * Match the valid choices against a where clause + * @param {Object} whereClause Lodash `where` clause + * @return {Array} Matching choices or empty array + */ + +Choices.prototype.where = function (whereClause) { + return _.filter(this.realChoices, whereClause); +}; + +/** + * Pluck a particular key from the choices + * @param {String} propertyName Property name to select + * @return {Array} Selected properties + */ + +Choices.prototype.pluck = function (propertyName) { + return _.map(this.realChoices, propertyName); +}; + +// Expose usual Array methods +Choices.prototype.indexOf = function () { + return this.choices.indexOf.apply(this.choices, arguments); +}; +Choices.prototype.forEach = function () { + return this.choices.forEach.apply(this.choices, arguments); +}; +Choices.prototype.filter = function () { + return this.choices.filter.apply(this.choices, arguments); +}; +Choices.prototype.find = function (func) { + return _.find(this.choices, func); +}; +Choices.prototype.push = function () { + var objs = _.map(arguments, function (val) { + return new Choice(val); + }); + this.choices.push.apply(this.choices, objs); + this.realChoices = this.choices.filter(Separator.exclude); + return this.choices; +}; |