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instance method
ERB#set_eoutvar
set_eoutvar(compiler, eoutvar = '_erbout')
lib/erb.rb
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# File tmp/rubies/ruby-3.3.0/lib/erb.rb, line 404
def set_eoutvar(compiler, eoutvar = '_erbout')
compiler.put_cmd = "#{eoutvar}.<<"
compiler.insert_cmd = "#{eoutvar}.<<"
compiler.pre_cmd = ["#{eoutvar} = +''"]
compiler.post_cmd = [eoutvar]
end