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[ruby/psych] Avoid calls to require in hotspots

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Followup: https://github.com/ruby/psych/pull/686

This single call shows up as 4% of some controller actions
in the lobsters benchmark.

Profile: https://share.firefox.dev/3EqKnhS

https://github.com/ruby/psych/commit/b77bfee092
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Jean Boussier 2025-01-30 09:34:01 +01:00 committed by Hiroshi SHIBATA
parent 599fdb9641
commit c1f024f99d
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1 changed files with 2 additions and 1 deletions
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3
ext/psych/lib/psych/nodes/node.rb
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@ -55,7 +55,8 @@ module Psych
# #
# See also Psych::Visitors::Emitter # See also Psych::Visitors::Emitter
def yaml io = nil, options = {} def yaml io = nil, options = {}
require "stringio" require "stringio" unless defined?(StringIO)
real_io = io || StringIO.new(''.encode('utf-8')) real_io = io || StringIO.new(''.encode('utf-8'))
Visitors::Emitter.new(real_io, options).accept self Visitors::Emitter.new(real_io, options).accept self