enum-dispatch

library0.3.13rscratesunverified

Near drop-in replacement for dynamic-dispatched method calls with up to 10x the speed.

# Cargo.toml
[dependencies]
enum_dispatch = "0.3.13"

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enum-dispatch

utilityrustv0.3.13

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Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

enum_dispatch

✓ use enum_dispatch::enum_dispatch;

Defines a trait and an enum that dispatches to its variants.

use enum_dispatch::enum_dispatch; #[enum_dispatch] trait MyTrait { fn do_something(&self) -> i32; } struct A; impl MyTrait for A { fn do_something(&self) -> i32 { 1 } } struct B; impl MyTrait for B { fn do_something(&self) -> i32 { 2 } } #[enum_dispatch(MyTrait)] enum MyEnum { A, B, } fn main() { let val = MyEnum::A; println!("{}", val.do_something()); }

Debug

Known issues

gotchaRequires nightly Rust for some features.

fix

Use stable Rust or check the crate's documentation for compatibility.

affects: >=0.1.0

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Version history

0.3.13latest on crates.io

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Resources

homepagehttps://gitlab.com/antonok/enum_dispatch ↗

docshttps://docs.rs/enum_dispatch/ ↗