double-dispatch – Row Coding

Difference betwen Visitor pattern & Double Dispatch

July 20, 2023 by Tarik

In short they come from to different conceptualizations that, in some languages where double dispatch is not natively supported, lead to the visitor pattern as a way to concatenate two (or more) single dispatch in order to have a multi-dispatch surrogate. In long The idea of multiple dispatch is – essentially – allow a call … Read more

Double dispatch in C#?

March 24, 2023 by Tarik

The visitor pattern is a way of doing double-dispatch in an object-oriented way. It’s useful for when you want to choose which method to use for a given argument based on its type at runtime rather than compile time. Double dispatch is a special case of multiple dispatch. When you call a virtual method on … Read more