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Contents
# encoding: utf-8
# Manages the initial marking of a simulation.
#
class YPetri::Simulation
class PlaceMapping < Hash
★ Dependency
class << self
# Initializes the initial marking from a hash.
#
def load hash
new.tap do |inst|
hash.with_values do |v|
v = v.marking if v.is_a? YPetri::Place
if v.is_a? Proc then v.call else v end
end.tap &inst.method( :load )
end
end
end
delegate :simulation, to: "self.class"
alias places keys
# Returns the initial marking as a column vector.
#
def vector
simulation.MarkingVector[ *self ]
end
alias to_marking_vector vector
# Sets the mapping value for a given place to a given value.
#
def set place_id, to: (fail ArgumentError, "No :to value!")
update place( place_id ) => to
end
# Loads initial the mappings from a hash places >> values.
#
def load( hash )
hash.each { |place, value| set place, to: value }
end
# Fetches the value for a place.
#
def fetch place_id
super place( place_id )
end
# Deletes the value for a place.
#
def delete place_id
super place( place_id )
end
# Returns a hash, whose keys have been replaced with source places of
# the place representations in this place mapping.
#
def keys_to_source_places
with_keys do |key| key.source end
end
end # class PlaceMapping
end # class YPetri::Simulation
Version data entries
7 entries across 7 versions & 1 rubygems