Class: DepSelector::DependencyGraph

Inherits:
Object
  • Object
show all
Defined in:
lib/dep_selector/dependency_graph.rb

Constant Summary collapse

DebugOptionFile = 
"/tmp/DepSelectorDebugOn"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DependencyGraph

Returns a new instance of DependencyGraph.



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# File 'lib/dep_selector/dependency_graph.rb', line 32

def initialize
  @packages = {}
end

Instance Attribute Details

#packages ⇒ Object (readonly)

Returns the value of attribute packages.



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# File 'lib/dep_selector/dependency_graph.rb', line 30

def packages
  @packages
end

Instance Method Details

#clone ⇒ Object

TODO [cw,2010/11/23]: this is a simple but inefficient impl. Do it for realz.



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# File 'lib/dep_selector/dependency_graph.rb', line 67

def clone
  Marshal.load(Marshal.dump(self))
end

#each_package ⇒ Object 



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# File 'lib/dep_selector/dependency_graph.rb', line 40

def each_package
  packages.each do |name, pkg|
    yield pkg
  end
end

#gecode_model_vars ⇒ Object 



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# File 'lib/dep_selector/dependency_graph.rb', line 57

def gecode_model_vars
  packages.inject({}){|acc, elt| acc[elt.first] = elt.last.gecode_model_var ; acc }
end

#gecode_wrapper ⇒ Object 



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# File 'lib/dep_selector/dependency_graph.rb', line 46

def gecode_wrapper
  raise "Must invoke generate_gecode_wrapper_constraints before attempting to access gecode_wrapper" unless @gecode_wrapper
  @gecode_wrapper
end

#generate_gecode_wrapper_constraints(packages_to_include_in_solve = nil) ⇒ Object

Note: only invoke this method once all Packages and PackageVersions have been added.



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# File 'lib/dep_selector/dependency_graph.rb', line 53

def generate_gecode_wrapper_constraints(packages_to_include_in_solve=nil)
  raise "#generate_gecode_wrapper_constraints references c extensions. don't use." 
end

#package(name) ⇒ Object 



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# File 'lib/dep_selector/dependency_graph.rb', line 36

def package(name)
  packages.has_key?(name) ? packages[name] : (packages[name]=Package.new(self, name))
end

#to_s(incl_densely_packed_versions = false) ⇒ Object 



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# File 'lib/dep_selector/dependency_graph.rb', line 61

def to_s(incl_densely_packed_versions = false)
  packages.keys.sort.map{|name| packages[name].to_s(incl_densely_packed_versions)}.join("\n")
end