Traits not checking for Self: Sized on required methods

[ionicmc-rs]

I tried this code:

trait MyTrait {
    fn foo(self);
}

I expected to see this happen:

Error: the size for values of type 'Self' do not have a know size at compile time
# ...

Instead, this happened:

# No Errors

Meta

rustc --version --verbose:

rustc 1.85.0-nightly (21fe748be 2024-12-11)
binary: rustc
commit-hash: 21fe748be15271ea5804e0507cd699b675efe038
commit-date: 2024-12-11
host: x86_64-unknown-linux-gnu
release: 1.85.0-nightly
LLVM version: 19.1.5

Backtrace

# None, because it does not throw an error, which is kinda the problem

The only reason i think this is here is to allow for dyn compatibility

[ionicmc-rs]

@rustbot label D-confusing

[compiler-errors]

The lack of an error is not a diagnostics bug. This is also not something that can be changed -- if we began to enforce this, we'd be breaking existing code.

[compiler-errors]

Actually, I'm just gonna close this b/c it's really not actionable. Thanks for the issue report anyways.