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# -*- coding: utf-8 -*-
module Plugin::Spell
Spell = Struct.new(:name, :constraint, :condition, :proc) do
def match(models, optional)
Set.new(constraint.map{|a| Diva::Model(a) }) == Set.new(models.map{|a| a.class }) and condition?(models)
end
def call(models, optional)
order = constraint.map{|a| Diva::Model(a) }
proc.call(*models.sort_by{|m| order.index(m.class) }, optional)
end
def condition?(models, optional)
if condition
order = constraint.map{|a| Diva::Model(a) }
condition.call(*models.sort_by{|m| order.index(m.class) }, optional)
else
true
end
end
end
end
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