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BasicObject
Delegator is an abstract class used to build delegator pattern objects from subclasses. Subclasses should redefine _getobj_. For a concrete implementation, see SimpleDelegator.
Returns true if two objects are not considered of equal value.
# File delegate.rb, line 202 def !=(obj) return false if obj.equal?(self) __getobj__ != obj end
Returns true if two objects are considered of equal value.
# File delegate.rb, line 194 def ==(obj) return true if obj.equal?(self) self.__getobj__ == obj end
This method must be overridden by subclasses and should return the object method calls are being delegated to.
# File delegate.rb, line 215 def __getobj__ raise NotImplementedError, "need to define `__getobj__'" end
This method must be overridden by subclasses and change the object delegate to obj.
# File delegate.rb, line 223 def __setobj__(obj) raise NotImplementedError, "need to define `__setobj__'" end
Freeze self and target at once.
# File delegate.rb, line 290 def freeze __getobj__.freeze super end
Serialization support for the object returned by _getobj_.
# File delegate.rb, line 230 def marshal_dump ivars = instance_variables.reject {|var| /\A@delegate_/ =~ var} [ :__v2__, ivars, ivars.map{|var| instance_variable_get(var)}, __getobj__ ] end
Reinitializes delegation from a serialized object.
# File delegate.rb, line 242 def marshal_load(data) version, vars, values, obj = data if version == :__v2__ vars.each_with_index{|var, i| instance_variable_set(var, values[i])} __setobj__(obj) else __setobj__(data) end end
Handles the magic of delegation through _getobj_.
# File delegate.rb, line 143 def method_missing(m, *args, &block) target = self.__getobj__ begin target.respond_to?(m) ? target.__send__(m, *args, &block) : super(m, *args, &block) ensure $@.delete_if {|t| %r"\A#{Regexp.quote(__FILE__)}:#{__LINE__-2}:"o =~ t} if $@ end end
Returns the methods available to this delegate object as the union of this object's and _getobj_ methods.
# File delegate.rb, line 169 def methods __getobj__.methods | super end
Returns the methods available to this delegate object as the union of this object's and _getobj_ protected methods.
# File delegate.rb, line 185 def protected_methods(all=true) __getobj__.protected_methods(all) | super end
Returns the methods available to this delegate object as the union of this object's and _getobj_ public methods.
# File delegate.rb, line 177 def public_methods(all=true) __getobj__.public_methods(all) | super end
Checks for a method provided by this the delegate object by forwarding the call through _getobj_.
# File delegate.rb, line 156 def respond_to_missing?(m, include_private) r = self.__getobj__.respond_to?(m, include_private) if r && include_private && !self.__getobj__.respond_to?(m, false) warn "#{caller(3)[0]}: delegator does not forward private method \##{m}" return false end r end
Taint both the object returned by _getobj_ and self.
# File delegate.rb, line 275
Trust both the object returned by _getobj_ and self.
# File delegate.rb, line 265