Initial commit

This commit is contained in:
Quaternions 2024-02-06 19:34:25 -08:00
commit 9d9b344a75
4 changed files with 92 additions and 0 deletions

1
.gitignore vendored Normal file
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/target

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Cargo.lock generated Normal file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
[[package]]
name = "id"
version = "0.1.0"
dependencies = [
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "proc-macro2"
version = "1.0.78"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e2422ad645d89c99f8f3e6b88a9fdeca7fabeac836b1002371c4367c8f984aae"
dependencies = [
"unicode-ident",
]
[[package]]
name = "quote"
version = "1.0.35"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
dependencies = [
"proc-macro2",
]
[[package]]
name = "syn"
version = "2.0.48"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0f3531638e407dfc0814761abb7c00a5b54992b849452a0646b7f65c9f770f3f"
dependencies = [
"proc-macro2",
"quote",
"unicode-ident",
]
[[package]]
name = "unicode-ident"
version = "1.0.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"

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Cargo.toml Normal file
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[package]
name = "id"
version = "0.1.0"
edition = "2021"
[lib]
proc_macro=true
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
proc-macro2 = "1.0.78"
quote = "1.0.35"
syn = "2.0.48"

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src/lib.rs Normal file
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extern crate proc_macro;
use proc_macro::TokenStream;
use quote::quote;
use syn::{parse_macro_input, DeriveInput};
#[proc_macro_derive(Id)]
pub fn id_derive(input: TokenStream) -> TokenStream {
// Parse the input tokens into a syntax tree
let ast = parse_macro_input!(input as DeriveInput);
let name = &ast.ident;
// Generate the code for the implementation
let expanded = quote! {
impl #name {
#[inline]
pub const fn new(id: u32) -> Self {
Self(id)
}
#[inline]
pub const fn get(self) -> u32 {
self.0
}
}
};
// Convert the generated code into a token stream and return it
TokenStream::from(expanded)
}