Reset Main without restarting the REPL

General Usage
1

I understand that we can’t delete existing bindings or redefine structs without replacing the entire module. Is there a way of reinitializing the Main module without having to close the REPL?

2

is there some particular use case that Revise.jl doesn’t cover?

3

Sorry, I do not understand what you mean by reinitializing the Main module, what exactly this would consist of?

4

Revise doesn’t allow redefining structs in Main, unlike in modules. I guess that might be an inconvenience?

julia> using Revise

julia> struct abc end

julia> struct abc{T}
       x :: T
       end
ERROR: invalid redefinition of constant abc

julia> module temp
       struct abc end
       end
Main.temp

julia> module temp
       struct abc{T}
       x :: T
       end
       end
WARNING: replacing module temp.
Main.temp
1 Like
5

https://github.com/JuliaLang/julia/pull/33872 makes this pretty easy to implement (https://github.com/JuliaLang/julia/pull/33872#issuecomment-703260632).

3 Likes
6

Yes, I’m mostly looking for an easy way to edit structs when working in projects.

7

If you haven’t decided on how your struct should look, consider using a NamedTuple until the layout is finalized and then switch to a struct. They work with Revise and you can explore to your hearts content.

3 Likes
8

Removing all user-defined variables