Class: PropCheck::Hooks::Enumerable Private

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/prop_check/hooks.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Wraps enumerable ‘inner` with a `PropCheck::Hooks` object such that the before/after/around hooks are called before/after/around each element that is fetched from `inner`.

This is very helpful if you need to perform cleanup logic before/after/around e.g. data is generated or fetched.

Note that whatever is after a ‘yield` in an `around` hook is not guaranteed to be called (for instance when a StopIteration is raised). Thus: make sure you use `ensure` to clean up resources.

Instance Method Summary collapse

Constructor Details

#initialize(inner, hooks) ⇒ Enumerable

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of Enumerable.



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# File 'lib/prop_check/hooks.rb', line 114

def initialize(inner, hooks)
  @inner = inner
  @hooks = hooks
end

Instance Method Details

#each(&task) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/prop_check/hooks.rb', line 119

def each(&task)
  return to_enum(:each) unless block_given?

  enum = @inner.to_enum

  wrapped_yielder = @hooks.wrap_block do
    yield enum.next(&task)
  end

  loop(&wrapped_yielder)
end