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Can any #Rust expert out there explain where is the syntax for this little challenge documented?
https://github.com/mainmatter/100-exercises-to-learn-rust/issues/245
(preferably with explanations about what the different lifetime annotations mean)
https://github.com/mainmatter/100-exercises-to-learn-rust/issues/245
(preferably with explanations about what the different lifetime annotations mean)
@buherator Ignoring your question for a second, I filed https://github.com/rust-lang/rust/issues/135589 to add more context to the error and error index entry corresponding to these cases. As the sister comment mentioned, lifetimes on associated items are new(er than The Book) so they are not as well introduced in the documentation.
@ekuber you are awesome, thank you! I'm sure your ticket will also help me better understand the situation.
@ekuber@hachyderm.io@buherator pretty happy with how this shaped up
https://github.com/rust-lang/rust/pull/135602
![Output from the rust compiler:
error[E0207]: the lifetime parameter `'a` is not constrained by the impl trait, self type, or predicates
--> file.rs:4:6
|
4 | impl<'a> IntoIterator for &S {
| ^^ unconstrained lifetime parameter
|
help: consider using the named lifetime here instead of an implict lifetime
|
4 | impl<'a> IntoIterator for &'a S {
| ++](https://media.hachyderm.io/media_attachments/files/113/841/030/817/350/214/original/0e3a27a6446e468d.png "Output from the rust compiler:
error[E0207]: the lifetime parameter `'a` is not constrained by the impl trait, self type, or predicates
--> file.rs:4:6
|
4 | impl<'a> IntoIterator for &S {
| ^^ unconstrained lifetime parameter
|
help: consider using the named lifetime here instead of an implict lifetime
|
4 | impl<'a> IntoIterator for &'a S {
| ++")
@ekuber Wow, this would've made the exercise almost too easy! :D I wanted to make a comment about E207 but I see you already fixed that one too. My trust in the Rust community just increased a lot (not that I had any bad experiences so far)!