Class: Dentaku::DependencyResolver

Inherits:
Object
  • Object
show all
Includes:
TSort
Defined in:
lib/dentaku/dependency_resolver.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(vars_to_dependencies_hash, case_sensitive = false) ⇒ DependencyResolver

Returns a new instance of DependencyResolver.



11
12
13
14
15
16
 
# File 'lib/dentaku/dependency_resolver.rb', line 11

def initialize(vars_to_dependencies_hash, case_sensitive = false)
  @case_sensitive = case_sensitive
  @key_mapping = Hash[vars_to_dependencies_hash.keys.map { |k| [normalized_name(k), k] }]
  # normalize variables and their dependencies alike so child lookups match
  @vars_to_deps = Hash[vars_to_dependencies_hash.map { |k, v| [normalized_name(k), v.map { |d| normalized_name(d) }] }]
end

Class Method Details

.find_resolve_order(vars_to_dependencies_hash, case_sensitive = false) ⇒ Object 



7
8
9
 
# File 'lib/dentaku/dependency_resolver.rb', line 7

def self.find_resolve_order(vars_to_dependencies_hash, case_sensitive = false)
  self.new(vars_to_dependencies_hash, case_sensitive).sort
end

Instance Method Details

#sort ⇒ Object 



18
19
20
 
# File 'lib/dentaku/dependency_resolver.rb', line 18

def sort
  tsort.map { |k| @key_mapping.fetch(k, k) }
end

#tsort_each_child(node, &block) ⇒ Object 



26
27
28
 
# File 'lib/dentaku/dependency_resolver.rb', line 26

def tsort_each_child(node, &block)
  @vars_to_deps.fetch(node.to_s, []).each(&block)
end

#tsort_each_node(&block) ⇒ Object 



22
23
24
 
# File 'lib/dentaku/dependency_resolver.rb', line 22

def tsort_each_node(&block)
  @vars_to_deps.each_key(&block)
end