A Rust library for generating volatile type IDs that change when a crate is recompiled.
- Extended Type IDs: Generate extended type IDs that change with each crate recompilation.
- Derive Macro Support: Easily derive the
HasVtidtrait for your types. no_stdCompatible: Use in embedded and otherno_stdenvironments.- Minimal Dependencies: Zero dependencies, except for the derive macro.
Add vtid to your Cargo.toml:
[dependencies]
vtid = { version = "0.1.0", features = ["derive"] }Here's how to use vtid in your project:
use vtid::{Vtid, HasVtid};
// Derive HasVtid for your types
#[derive(HasVtid)]
struct MyType;
// Get the volatile type ID
let type_id = Vtid::of::<MyType>();
println!("Type ID: {:?}", type_id);
// IDs change when crate is recompiled
let id1 = Vtid::of::<MyType>();
// Restart the program.
let id2 = Vtid::of::<MyType>(); // Same as id1
// Recompile program, but this crate and deps are not changed, so rlib is reused.
let id3 = Vtid::of::<MyType>(); // Should be the same as id1
// After this crate recompilation...
let id4 = Vtid::of::<MyType>(); // Different from id1Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.