diff options
| -rw-r--r-- | library/core/src/macros/mod.rs | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/library/core/src/macros/mod.rs b/library/core/src/macros/mod.rs index 8ead64808ca..60d809c5489 100644 --- a/library/core/src/macros/mod.rs +++ b/library/core/src/macros/mod.rs @@ -474,6 +474,23 @@ macro_rules! r#try { /// } /// ``` /// +/// If you also need the trait names themselves, such as to implement one or both on your types, +/// import the containing module and then name them with a prefix: +/// +/// ``` +/// # #![allow(unused_imports)] +/// use std::fmt::{self, Write as _}; +/// use std::io::{self, Write as _}; +/// +/// struct Example; +/// +/// impl fmt::Write for Example { +/// fn write_str(&mut self, _s: &str) -> core::fmt::Result { +/// unimplemented!(); +/// } +/// } +/// ``` +/// /// Note: This macro can be used in `no_std` setups as well. /// In a `no_std` setup you are responsible for the implementation details of the components. /// |