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Contents
## Introduction
Reek reports a _Manual Dispatch_ smell if it finds source code that manually checks whether an object responds to a method before that method is called. Manual dispatch is a type of [Simulated Polymorphism](Simulated-Polymorphism.md) which leads to code that is harder to reason about, debug, and refactor.
## Example
```Ruby
class MyManualDispatcher
attr_reader :foo
def initialize(foo)
@foo = foo
end
def call
foo.bar if foo.respond_to?(:bar)
end
end
```
Reek would emit the following warning:
```
test.rb -- 1 warning:
[9]: MyManualDispatcher manually dispatches method call (ManualDispatch)
```
## Configuration
_Manual Dispatch_ offers the [Basic Smell Options](Basic-Smell-Options.md).
Version data entries
41 entries across 39 versions & 2 rubygems