mikros/rust
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Forward reference crates and modules chapter

Browse Source
This commit is contained in:
Kamal Marhubi 2016-01-22 15:18:00 -05:00
parent 9624b68207
commit a559577c2f
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/doc/book/traits.md
View File

@ -280,7 +280,8 @@ it won’t affect you, unless you `use` that trait.
There’s one more restriction on implementing traits: either the trait
or the type you’re implementing it for must be defined by you. Or more
precisely, one of them must be defined in the same crate as the `impl`
you're writing.
you're writing. For more on Rust's module and package system, see the
chapter on [crates and modules][cm].
So, we could implement the `HasArea` type for `i32`, because we defined
`HasArea` in our code. But if we tried to implement `ToString`, a trait
@ -291,6 +292,7 @@ One last thing about traits: generic functions with a trait bound use
‘monomorphization’ (mono: one, morph: form), so they are statically dispatched.
What’s that mean? Check out the chapter on [trait objects][to] for more details.
[cm]: crates-and-modules.html
[to]: trait-objects.html
# Multiple trait bounds