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adding caching to context variable lookup

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This commit is contained in:
Michael Go 2024-11-25 16:09:33 -04:00
parent 313d01706a
commit 2c7d686690
1 changed files with 4 additions and 1 deletions
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5
lib/liquid/context.rb
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@ -1,5 +1,7 @@
# frozen_string_literal: true
require "lru_redux"
module Liquid
# Context keeps the variable stack and resolves variables, as well as keywords
#
@ -39,6 +41,7 @@ module Liquid
@filters = []
@global_filter = nil
@disabled_tags = {}
@expression_cache = LruRedux::ThreadSafeCache.new(1000)
# Instead of constructing new StringScanner objects for each Expression parse,
# we recycle the same one.
@ -180,7 +183,7 @@ module Liquid
# Example:
# products == empty #=> products.empty?
def [](expression)
evaluate(Expression.parse(expression, @string_scanner))
evaluate(Expression.parse(expression, @string_scanner, @expression_cache))
end
def key?(key)