class DeprecatedInstanceVariableProxy
Ruby on Rails edge
Since v4.0.13DeprecatedInstanceVariableProxy transforms an instance variable into a deprecated one. It takes an instance of a class, a method on that class, an instance variable, and a deprecator as a keyword argument.
Trying to use the deprecated instance variable will result in a deprecation warning, pointing to the method as a replacement.
class Example
def initialize
@request = ActiveSupport::Deprecation::DeprecatedInstanceVariableProxy.new(self, :request, :@request, deprecator: ActiveSupport::Deprecation.new)
@_request = :special_request
end
def request
@_request
end
def old_request
@request
end
end
example = Example.new
# => #<Example:0x007fb9b31090b8 @_request=:special_request, @request=:special_request>
example.old_request.to_s
# => DEPRECATION WARNING: @request is deprecated! Call request.to_s instead of
@request.to_s
(Backtrace information…)
"special_request"
example.request.to_s
# => "special_request"
Inherits from
Methods (defined here)
- self. new