Unit/tuple structs with the same name as a module are allowed.

[eddyb]

The following two type-definition/module conflicts cause errors:

enum Foo {}
mod Foo {}

struct Bar { x: bool }
mod Bar {}

But unit and tuple structs, due to the special-casing to check for value conflicts, end up not checking for module conflicts, resulting in the following two examples compiling:

struct Foo;
mod Foo {}

struct Bar(bool);
mod Bar {}

[WildCryptoFox]

I found this issue when using a struct with fields. This only causes the error when the module is defined first.

https://play.rust-lang.org/?gist=f66e0f4649a86c845270&version=stable

The error does not occur with unit structs or tuple structs.

https://play.rust-lang.org/?gist=55e9c9cd9938220a1031&version=stable

[alexcrichton]

This is in theory being fixed by #26421, but it looks like progress is slow there

[eddyb]

Closing as duplicate of #21546.