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Contents
module JMESPath
# @api private
module Nodes
class Comparator < Node
attr_reader :left, :right
def initialize(left, right)
@left = left
@right = right
end
def self.create(relation, left, right)
type = begin
case relation
when '==' then Comparators::Eq
when '!=' then Comparators::Neq
when '>' then Comparators::Gt
when '>=' then Comparators::Gte
when '<' then Comparators::Lt
when '<=' then Comparators::Lte
end
end
type.new(left, right)
end
def visit(value)
check(@left.visit(value), @right.visit(value))
end
def optimize
self.class.new(@left.optimize, @right.optimize)
end
private
def check(left_value, right_value)
nil
end
end
module Comparators
class Eq < Comparator
def check(left_value, right_value)
left_value == right_value
end
end
class Neq < Comparator
def check(left_value, right_value)
left_value != right_value
end
end
class Gt < Comparator
def check(left_value, right_value)
left_value.is_a?(Integer) && right_value.is_a?(Integer) && left_value > right_value
end
end
class Gte < Comparator
def check(left_value, right_value)
left_value.is_a?(Integer) && right_value.is_a?(Integer) && left_value >= right_value
end
end
class Lt < Comparator
def check(left_value, right_value)
left_value.is_a?(Integer) && right_value.is_a?(Integer) && left_value < right_value
end
end
class Lte < Comparator
def check(left_value, right_value)
left_value.is_a?(Integer) && right_value.is_a?(Integer) && left_value <= right_value
end
end
end
end
end
Version data entries
12 entries across 12 versions & 2 rubygems