Class: Settable::SettingBlock

Inherits:
Object
  • Object
show all
Defined in:
lib/settable.rb

Overview

Private: Wrapper around the setting’s value. Returns the wrapped value.

Instance Method Summary collapse

Constructor Details

#initialize(namespace, &block) ⇒ SettingBlock

Public: Create a setting block in the given namespace.

namespace - The namespace to operate in. block - The block to call when retrieving the setting.

Returns the setting value block.



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# File 'lib/settable.rb', line 122

def initialize(namespace, &block)
  @block = lambda &block
  @namespace = namespace
  @environment = namespace.environment
end

Instance Method Details

#call ⇒ Object

Public: Retrieve the value from this block, if we are using environment

checkers then we will check the environment and override any
default values

Returns the value for the setting.



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# File 'lib/settable.rb', line 133

def call
  @__env_return_value__ = nil # avoid using throw/catch
  default_return_value = instance_eval &@block
  @__env_return_value__ || default_return_value
end