| 1 |
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| 2 | class Binding
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| 3 | matches: (proto) ->
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| 4 | throw Error('Binding.matches not implemented')
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| 5 |
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| 6 | create: (defaultFactory) ->
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| 7 | defaultFactory()
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| 8 |
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| 9 | class ClassBinding extends Binding
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| 10 | constructor: (@iface) ->
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| 11 | super()
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| 12 | if @iface.scope? then @inScope(@iface.scope)
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| 13 |
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| 14 | to: (impl) ->
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| 15 | if @impl? then throw Error('Already bound')
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| 16 | @impl = impl
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| 17 | if impl.scope? then @scope = impl.scope.toUpperCase()
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| 18 | this
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| 19 |
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| 20 | inScope: (scope) ->
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| 21 | if @scope? and @scope isnt scope
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| 22 | throw Error("Already scoped to #{@scope}")
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| 23 |
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| 24 | switch scope.toUpperCase()
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| 25 | when 'SINGLETON' then @scope = 'SINGLETON'
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| 26 | when 'INSTANCE' then
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| 27 | else throw Error("Invalid scope, '#{scope}'")
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| 28 | this
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| 29 |
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| 30 | matches: (cls) ->
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| 31 | cls is @iface
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| 32 |
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| 33 | class ConstantBinding extends Binding
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| 34 | constructor: (@name) ->
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| 35 |
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| 36 | to: (@value) ->
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| 37 |
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| 38 | matches: (cls) ->
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| 39 | cls is @name
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| 40 |
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| 41 | create: ->
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| 42 | @value
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| 43 |
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| 44 | class Binder
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| 45 | constructor: ->
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| 46 | @bindings = []
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| 47 | @configure()
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| 48 |
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| 49 | bind: (iface) ->
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| 50 | @_bind(new ClassBinding(iface))
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| 51 |
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| 52 | bindConstant: (name) ->
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| 53 | @_bind(new ConstantBinding(name))
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| 54 |
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| 55 | _bind: (binding) ->
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| 56 | @bindings.push(binding)
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| 57 | binding
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| 58 |
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| 59 |
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| 60 | module.exports = Binder
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