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# frozen_string_literal: true
require 'thread'
module JMESPath
class CachingParser
def initialize(options = {})
@parser = options[:parser] || Parser.new(options)
@mutex = Mutex.new
@cache = {}
end
def parse(expression)
if cached = @cache[expression]
cached
else
cache_expression(expression)
end
end
private
def cache_expression(expression)
@mutex.synchronize do
@cache.clear if @cache.size > 1000
@cache[expression] = @parser.parse(expression)
end
end
end
end
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