Module: Teapot::Dependency

Included in:
Target
Defined in:
lib/teapot/dependency.rb

Defined Under Namespace

Classes: Alias, Chain, Provision, UnresolvedDependencyError

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.chain(selection, dependencies, providers) ⇒ Object

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



189
190
191
192
193
194
195
196
197
 
# File 'lib/teapot/dependency.rb', line 189

def self.chain(selection, dependencies, providers)
	chain = Chain.new(selection, dependencies, providers)

	if chain.unresolved.size > 0
		raise UnresolvedDependencyError.new(chain)
	end

	return chain
end

Instance Method Details

#dependencies ⇒ Object 



74
75
76
 
# File 'lib/teapot/dependency.rb', line 74

def dependencies
	@dependencies ||= Set.new
end

#depends(name) ⇒ Object 



66
67
68
 
# File 'lib/teapot/dependency.rb', line 66

def depends(name)
	dependencies << name
end

#depends?(name) ⇒ Boolean

Returns:

  • (Boolean) 


70
71
72
 
# File 'lib/teapot/dependency.rb', line 70

def depends?(name)
	dependencies.include? name
end

#provides(name_or_aliases, &block) ⇒ Object 



44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
 
# File 'lib/teapot/dependency.rb', line 44

def provides(name_or_aliases, &block)
	if String === name_or_aliases || Symbol === name_or_aliases
		name = name_or_aliases
		
		if block_given?
			provisions[name] = Provision.new(block)
		else
			provisions[name] = Provision.new(nil)
		end
	else
		aliases = name_or_aliases
		
		aliases.each do |name, dependencies|
			provisions[name] = Alias.new(Array dependencies)
		end
	end
end

#provides?(name) ⇒ Boolean

Returns:

  • (Boolean) 


40
41
42
 
# File 'lib/teapot/dependency.rb', line 40

def provides?(name)
	provisions.key? name
end

#provisions ⇒ Object 



62
63
64
 
# File 'lib/teapot/dependency.rb', line 62

def provisions
	@provisions ||= {}
end