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Size: 983 Bytes
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Stored size: 983 Bytes
Contents
require_relative 'edge'
module Rley # This module is used as a namespace
module GFG # This module is used as a namespace
# Specialization of an edge in a grammar flow graph
# that has a item vertex as its head (predecessor).
# and a start vertex (.X) as its tail (successor).
# Responsibilities:
# - To know the successor vertex (tail)
class CallEdge < Edge
attr_reader(:key)
# Pre-condition: thePredecessor is an ItemVertex
# Pre-condition: theSuccessor is an StartVertex
def initialize(thePredecessor, theSuccessor)
super(thePredecessor, theSuccessor)
do_set_key(thePredecessor, theSuccessor)
end
private
def do_set_key(thePredecessor, _theSuccessor)
tail_d_item = thePredecessor.dotted_item
tail_production = tail_d_item.production
@key = "CALL_#{tail_production.object_id}_#{tail_d_item.position}"
end
end # class
end # module
end # module
# End of file
Version data entries
14 entries across 14 versions & 1 rubygems