Module: RSpec::Core::Extensions::InstanceEvalWithArgs
- Included in:
- RSpec::Core::ExampleGroup, ModuleEvalWithArgs
- Defined in:
- lib/rspec/core/extensions/instance_eval_with_args.rb
Instance Method Summary collapse
-
#instance_eval_with_args(*args, &block) ⇒ Object
based on Bounded Spec InstanceExec (Mauricio Fernandez) eigenclass.org/hiki/bounded+space+instance_exec - uses singleton_class instead of global InstanceExecHelper module - this keeps it scoped to classes/modules that include this module - only necessary for ruby 1.8.6.
Instance Method Details
#instance_eval_with_args(*args, &block) ⇒ Object
based on Bounded Spec InstanceExec (Mauricio Fernandez) eigenclass.org/hiki/bounded+space+instance_exec
-
uses singleton_class instead of global InstanceExecHelper module
-
this keeps it scoped to classes/modules that include this module
-
only necessary for ruby 1.8.6
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# File 'lib/rspec/core/extensions/instance_eval_with_args.rb', line 10 def instance_eval_with_args(*args, &block) return instance_exec(*args, &block) if respond_to?(:instance_exec) # If there are no args and the block doesn't expect any, there's no # need to fake instance_exec with our hack below. # Notes: # * lambda { }.arity # => -1 # * lambda { || }.arity # => 0 # * lambda { |*a| }.arity # -1 return instance_eval(&block) if block.arity < 1 && args.size.zero? singleton_class = (class << self; self; end) begin orig_critical, Thread.critical = Thread.critical, true n = 0 n += 1 while respond_to?(method_name="__instance_exec#{n}") singleton_class.module_eval{ define_method(method_name, &block) } ensure Thread.critical = orig_critical end begin return send(method_name, *args) ensure singleton_class.module_eval{ remove_method(method_name) } rescue nil end end |