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module Arel
module Nodes
class And < Arel::Nodes::Node
attr_reader :children
def initialize children, right = nil
super()
unless Array === children
warn "(#{caller.first}) AND nodes should be created with a list"
children = [children, right]
end
@children = children
end
def left
children.first
end
def right
children[1]
end
def hash
children.hash
end
def eql? other
self.class == other.class &&
self.children == other.children
end
alias :== :eql?
end
end
end
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