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require 'active_support/inflector'
module ActiveSupport
module Deprecation
class DeprecationProxy #:nodoc:
instance_methods.each { |m| undef_method m unless m =~ /^__|^object_id$/ }
# Don't give a deprecation warning on inspect since test/unit and error
# logs rely on it for diagnostics.
def inspect
target.inspect
end
private
def method_missing(called, *args, &block)
warn caller, called, args
target.__send__(called, *args, &block)
end
end
class DeprecatedObjectProxy < DeprecationProxy #:nodoc:
def initialize(object, message)
@object = object
@message = message
end
private
def target
@object
end
def warn(callstack, called, args)
ActiveSupport::Deprecation.warn(@message, callstack)
end
end
# Stand-in for <tt>@request</tt>, <tt>@attributes</tt>, <tt>@params</tt>, etc.
# which emits deprecation warnings on any method call (except +inspect+).
class DeprecatedInstanceVariableProxy < DeprecationProxy #:nodoc:
def initialize(instance, method, var = "@#{method}")
@instance, @method, @var = instance, method, var
end
private
def target
@instance.__send__(@method)
end
def warn(callstack, called, args)
ActiveSupport::Deprecation.warn("#{@var} is deprecated! Call #{@method}.#{called} instead of #{@var}.#{called}. Args: #{args.inspect}", callstack)
end
end
class DeprecatedConstantProxy < DeprecationProxy #:nodoc:
def initialize(old_const, new_const)
@old_const = old_const
@new_const = new_const
end
def class
target.class
end
private
def target
ActiveSupport::Inflector.constantize(@new_const.to_s)
end
def warn(callstack, called, args)
ActiveSupport::Deprecation.warn("#{@old_const} is deprecated! Use #{@new_const} instead.", callstack)
end
end
end
end
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