| 1 | {curry, negate} = require "fairmont-core"
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| 2 | {isObject, isFunction} = require "./type"
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| 3 | {deepEqual} = require "./util"
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| 4 |
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| 5 | include = extend = (object, mixins...) ->
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| 6 | for mixin in mixins
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| 7 | for key, value of mixin
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| 8 | object[key] = value
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| 9 | object
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| 10 |
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| 11 | merge = (objects...) ->
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| 12 |
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| 13 | destination = {}
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| 14 | for object in objects
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| 15 | destination[k] = v for k, v of object
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| 16 | destination
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| 17 |
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| 18 | clone = (object) ->
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| 19 |
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| 20 | if not object? or typeof object isnt 'object'
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| 21 | return object
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| 22 |
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| 23 | if object instanceof Date
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| 24 | return new Date(object.getTime())
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| 25 |
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| 26 | if object instanceof RegExp
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| 27 | flags = ''
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| 28 | flags += 'g' if object.global?
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| 29 | flags += 'i' if object.ignoreCase?
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| 30 | flags += 'm' if object.multiline?
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| 31 | flags += 'y' if object.sticky?
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| 32 | return new RegExp(object.source, flags)
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| 33 |
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| 34 | _clone = new object.constructor()
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| 35 |
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| 36 | for key of object
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| 37 | _clone[key] = (clone object[key])
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| 38 |
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| 39 | return _clone
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| 40 |
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| 41 | property = curry (key, object) -> object[key]
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| 42 |
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| 43 | delegate = (from, to) ->
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| 44 |
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| 45 | for name, value of to when isFunction value
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| 46 | do (value) ->
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| 47 | from[name] = (args...) -> value.call to, args...
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| 48 |
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| 49 | bind = curry (f, x) -> f.bind x
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| 50 |
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| 51 | detach = (f) -> curry (x, args...) -> f.apply x, args
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| 52 |
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| 53 | properties = do ->
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| 54 | defaults = enumerable: true, configurable: true
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| 55 | (object, properties) ->
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| 56 | for key, value of properties
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| 57 | include value, defaults
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| 58 | Object.defineProperty object, key, value
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| 59 |
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| 60 | has = curry (p, x) -> x[p]?
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| 61 |
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| 62 | keys = Object.keys
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| 63 |
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| 64 | values = (x) -> v for k, v of x
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| 65 |
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| 66 | pairs = (x) -> [k, v] for k, v of x
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| 67 |
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| 68 | pick = curry (f, x) ->
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| 69 | r = {}
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| 70 | r[k] = v for k, v of x when f k, v
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| 71 | r
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| 72 |
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| 73 | omit = curry (f, x) -> pick (negate f), x
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| 74 |
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| 75 | query = curry (example, target) ->
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| 76 | if (isObject example) && (isObject target)
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| 77 | for k, v of example
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| 78 | return false unless query v, target[k]
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| 79 | return true
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| 80 | else
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| 81 | deepEqual example, target
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| 82 |
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| 83 | toJSON = (x, pretty = false) ->
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| 84 | if pretty
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| 85 | JSON.stringify x, null, 2
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| 86 | else
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| 87 | JSON.stringify x
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| 88 |
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| 89 | fromJSON = JSON.parse
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| 90 |
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| 91 | module.exports = {include, extend, merge, clone,
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| 92 | properties, property, delegate, bind, detach,
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| 93 | has, keys, values, pairs, pick, omit, query,
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| 94 | toJSON, fromJSON}
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