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rails--rails/activesupport/lib/active_support/option_merger.rb
Eugene Kenny 537b071002 Copy options before delegating in with_options
cd31e113c0 switched to passing options as
keyword arguments, which always creates a new hash.

9e4ff29f74 removed a now-unnecessary call
to `dup`, since the options could no longer be accidentally mutated.

a55620f3fa switched back to passing
options as a positional argument for Ruby < 2.7, but didn't restore the
call to `dup`, which meant that the same options hash was now passed
with every method call and mutations leaked from one call to another.
2020-05-23 22:47:48 +01:00

46 lines
1.3 KiB
Ruby

# frozen_string_literal: true
require "active_support/core_ext/hash/deep_merge"
require "active_support/core_ext/symbol/starts_ends_with"
module ActiveSupport
class OptionMerger #:nodoc:
instance_methods.each do |method|
undef_method(method) unless method.start_with?("__", "instance_eval", "class", "object_id")
end
def initialize(context, options)
@context, @options = context, options
end
private
def method_missing(method, *arguments, &block)
options = nil
if arguments.first.is_a?(Proc)
proc = arguments.pop
arguments << lambda { |*args| @options.deep_merge(proc.call(*args)) }
elsif arguments.last.respond_to?(:to_hash)
options = @options.deep_merge(arguments.pop)
else
options = @options
end
invoke_method(method, arguments, options, &block)
end
if RUBY_VERSION >= "2.7"
def invoke_method(method, arguments, options, &block)
if options
@context.__send__(method, *arguments, **options, &block)
else
@context.__send__(method, *arguments, &block)
end
end
else
def invoke_method(method, arguments, options, &block)
arguments << options.dup if options
@context.__send__(method, *arguments, &block)
end
end
end
end