displaydoc-lite
Implement the Display trait using your standard doc comments.
This crate is a lite version of the popular crate displaydoc.
It provides the same functionality but using a declarative macro instead
and not depending on syn or quote.
This crate is also usable in no_std environments. No additional features are required for that.
Note: displaydoc-lite still has a proc-macro as a dependency,
but it's very tiny and doesn't have any dependencies.
```rust use displaydoc_lite::displaydoc;
displaydoc! {
#[derive(Debug)]
pub enum DataStoreError {
/// data store disconnected: {_0}
Disconnect(io::Error),
/// the data for key {_0} is not available
Redaction(String),
/// invalid header (expected {expected}, found {found})
InvalidHeader {
expected: String,
found: String,
},
/// unknown data store error
Unknown,
}
}
```
Listing of all supported syntax variants inside a {}:
- {var} -> write!("{}", self.var)
- {_0} -> write!("{}", self.0)
- {var:?} -> write!("{:?}", self.var)
- {_0:?} -> write!("{:?}", self.0)
Licensed under either Apache License or the MIT license.