Sha256: 1d4512c8cf17e9511678ccb378f16a0971e1f547b92eb2326639f825a3a8d534
Contents?: true
Size: 1.17 KB
Versions: 12
Compression:
Stored size: 1.17 KB
Contents
module Spank
class Container
def initialize
@items = {}
register(:container) { self }
end
def register(key, &block)
component = Component.new(key, &block)
components_for(key).push(component)
component
end
def resolve(key)
instantiate(components_for(key).first, key)
end
def resolve_all(key)
components_for(key).map {|item| instantiate(item, key) }
end
def build(type)
try("I could not create: #{type}"){ build!(type) }
end
def build!(type)
constructor = type.instance_method('initialize')
parameters = constructor.parameters.map do |req, parameter|
resolve(parameter.to_sym)
end
type.send(:new, *parameters)
end
private
def components_for(key)
@items[key] = [] unless @items[key]
@items[key]
end
def instantiate(component, key)
raise ContainerError.new("#{key} is not a registered component.") unless component
component.create(self)
end
def try(error = nil, &lambda)
begin
lambda.call
rescue => e
raise Spank::ContainerError.new(error ||= "Oops: #{e}")
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems