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# frozen_string_literal: true
# This backports https://github.com/rails/sprockets/pull/759 to Sprockets v3.7.2 to
# fix thread-safety issues with compiling SASS.
#
# This pull request has already been merged in Sprockets v4.2.0, but we
# don't plan on upgrading: https://gitlab.com/gitlab-org/gitlab/-/issues/373997#note_1360248557
require 'sprockets/utils'
unless Gem::Version.new(Sprockets::VERSION) == Gem::Version.new('3.7.2')
raise 'New version of Sprockets detected. This patch can likely be removed.'
end
# rubocop:disable Style/SoleNestedConditional -- Keep the format consistent with upstream project
module Sprockets
module Utils
extend self
MODULE_INCLUDE_MUTEX = Mutex.new
private_constant :MODULE_INCLUDE_MUTEX
# Internal: Inject into target module for the duration of the block.
#
# mod - Module
#
# Returns result of block.
def module_include(base, mod)
MODULE_INCLUDE_MUTEX.synchronize do
old_methods = {}
mod.instance_methods.each do |sym|
old_methods[sym] = base.instance_method(sym) if base.method_defined?(sym)
end
unless UNBOUND_METHODS_BIND_TO_ANY_OBJECT
base.send(:include, mod) unless base < mod
end
mod.instance_methods.each do |sym|
method = mod.instance_method(sym)
base.send(:define_method, sym, method)
end
yield
ensure
mod.instance_methods.each do |sym|
base.send(:undef_method, sym) if base.method_defined?(sym)
end
old_methods.each do |sym, method|
base.send(:define_method, sym, method)
end
end
end
end
end
# rubocop:enable Style/SoleNestedConditional
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