`class PartialChain`

A partial dependency chain that resolves only a subset of dependencies.

Definitions

`def self.expand(*args)`

An UnresolvedDependencyError will be thrown if there are any unresolved dependencies.

Implementation

def self.expand(*args)
	chain = self.new(*args)
	
	chain.freeze
	
	return chain
end

`def initialize(chain, dependencies)`

Initialize a partial chain.

Signature

parameter　chain　Chain: The parent chain to use for resolution.
parameter　dependencies　Array<Depends>: The dependencies to resolve.

Implementation

def initialize(chain, dependencies)
	super()
	
	@chain = chain
	
	@dependencies = dependencies.collect{|dependency| Depends[dependency]}
	
	expand_top
end

`def selection`

Get the selection from the parent chain.

Signature

returns　Set<String>: The explicitly selected dependencies.

Implementation

def selection
	@chain.selection
end

`attr :dependencies`

`def providers`

Get the providers from the parent chain.

Signature

returns　Array<Provider>: The available providers.

Implementation

def providers
	@chain.providers
end

`def freeze`

Freeze the partial chain.

Implementation

def freeze
	return self if frozen?
	
	@chain.freeze
	@dependencies.freeze
	
	super
end