Ruby » Ruby master

Feature #21155

Updated by artur86 (Artur *) 9 days ago

Given there is a file with a class that needs to be namespaced. There are basically two options currently. 

 `module` implies indenting the class by one level: 

 ```ruby 
 module MyNamespace 
   class MyClass; end 
 end 
 ``` 

 Scope resolution operator (`::`) needs no indentation, but it works differently than using `module` and repeating module name for every class inside seems tedious and verbose to me: 
 ```ruby 

 class MyNamespace::MyClass; end 
 class MyNamespace::MyAnotherClass; end 
 class MyNamespace::OneMoreClass; end 
 end 
 ``` 

 Neither option options enables to declare a namespace once at the top of a file and let Ruby treat all the subsequent constants to be under that namespace. Wouldn't it be better to implement something similar in Ruby?  

 This is implemented in C# under the name of [File Scoped Namespaces](https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/proposals/csharp-10.0/file-scoped-namespaces). 

 [The discussion on StackOverflow](https://stackoverflow.com/q/40809717/2987689).

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