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Contents
module Scorpion
# Chains hunting calls to one or more managed scorpions.
class ChainHunter
include Scorpion
# ============================================================================
# @!group Attributes
#
# @!attribute
# @return [Array<Scorpion>] scorpions to chain hunting calls to.
attr_reader :scorpions
#
# @!endgroup Attributes
def initialize( *scorpions )
@scorpions = scorpions
end
# Prepare the scorpion for hunting.
# @see DependencyMap#chart
def prepare( &block )
if top = scorpions.first
top.prepare &block
end
end
# @see Scorpion#replicate
def replicate
self.class.new scorpions
end
# @see Scorpion#hunt
def execute( hunt )
# Try explicitly defined dependencies first
scorpions.each do |hunter|
begin
return hunter.execute( hunt, true )
rescue UnsuccessfulHunt
end
end
# Then allow implicit
scorpions.each do |hunter|
begin
return hunter.execute( hunt )
rescue UnsuccessfulHunt
end
end
unsuccessful_hunt hunt.contract, hunt.traits
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems