Crates.io | caret |
lib.rs | caret |
version | |
source | src |
created_at | 2021-06-24 13:11:39.782176 |
updated_at | 2025-01-07 17:18:26.432779 |
description | Macros for declaring non-exhaustive C-style enumerations, with named members |
homepage | https://gitlab.torproject.org/tpo/core/arti/-/wikis/home |
repository | https://gitlab.torproject.org/tpo/core/arti.git/ |
max_upload_size | |
id | 414430 |
Cargo.toml error: | TOML parse error at line 22, column 1 | 22 | autolib = false | ^^^^^^^ unknown field `autolib`, expected one of `name`, `version`, `edition`, `authors`, `description`, `readme`, `license`, `repository`, `homepage`, `documentation`, `build`, `resolver`, `links`, `default-run`, `default_dash_run`, `rust-version`, `rust_dash_version`, `rust_version`, `license-file`, `license_dash_file`, `license_file`, `licenseFile`, `license_capital_file`, `forced-target`, `forced_dash_target`, `autobins`, `autotests`, `autoexamples`, `autobenches`, `publish`, `metadata`, `keywords`, `categories`, `exclude`, `include` |
size | 0 |
Integers with some named values.
Suppose you have an integer type with some named values. For example, you might be implementing a protocol where "command" can be any 8-bit value, but where only a small number of commands are recognized.
In that case, you can use the [caret_int
] macro to define a
wrapper around u8
so named values are displayed with their
preferred format, but you can still represent all the other values
of the field:
use caret::caret_int;
caret_int!{
struct Command(u8) {
Get = 0,
Put = 1,
Swap = 2,
}
}
let c1: Command = 2.into();
let c2: Command = 100.into();
assert_eq!(c1.to_string().as_str(), "Swap");
assert_eq!(c2.to_string().as_str(), "100");
assert_eq!(c1, Command::Swap);
This crate is developed as part of Arti, a project to implement Tor in Rust. Many other crates in Arti depend on it, but it should be of general use.
License: MIT OR Apache-2.0