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Contents
module RSpec
module Core
module Extensions
# @private
module ModuleEvalWithArgs
include InstanceEvalWithArgs
# @private
#
# Used internally to support `module_exec` in Ruby 1.8.6.
def module_eval_with_args(*args, &block)
# ruby > 1.8.6
return module_exec(*args, &block) if respond_to?(:module_exec)
# If there are no args and the block doesn't expect any, there's no
# need to fake module_exec with our hack below.
# Notes:
# * lambda { }.arity # => -1
# * lambda { || }.arity # => 0
# * lambda { |*a| }.arity # => -1
return module_eval(&block) if block.arity < 1 && args.size.zero?
orig_singleton_methods = singleton_methods
instance_eval_with_args(*args, &block)
# The only difference between instance_eval and module_eval is static method defs.
# * `def foo` in instance_eval defines a singleton method on the instance
# * `def foo` in class/module_eval defines an instance method for the class/module
# Here we deal with this difference by defining an instance method for
# each new singleton method.
# This has the side effect of duplicating methods (all new class methods will
# become instance methods and vice versa), but I don't see a way around it...
(singleton_methods - orig_singleton_methods).each { |m| define_method(m, &method(m)) }
end
end
end
end
end
Version data entries
188 entries across 135 versions & 25 rubygems