modular_bitfield_impl/
lib.rs

1#![recursion_limit = "256"]
2#![forbid(unsafe_code)]
3#![warn(clippy::pedantic, rust_2018_idioms)]
4
5#[macro_use]
6mod errors;
7mod bitfield;
8mod bitfield_specifier;
9mod define_specifiers;
10
11use proc_macro::TokenStream;
12
13/// Generates the `B1`, `B2`, ..., `B128` bitfield specifiers.
14///
15/// Only of use witihn the `modular_bitfield` crate itself.
16#[proc_macro]
17pub fn define_specifiers(input: TokenStream) -> TokenStream {
18    define_specifiers::generate(input.into()).into()
19}
20
21#[proc_macro_attribute]
22pub fn bitfield(args: TokenStream, input: TokenStream) -> TokenStream {
23    bitfield::analyse_and_expand(args.into(), input.into()).into()
24}
25
26#[proc_macro_derive(Specifier, attributes(bits))]
27pub fn specifier(input: TokenStream) -> TokenStream {
28    bitfield_specifier::generate(input.into()).into()
29}
30
31#[deprecated(
32    since = "0.12.0",
33    note = "use #[derive(Specifier)]. This alias will be removed in 0.13."
34)]
35#[proc_macro_derive(BitfieldSpecifier, attributes(bits))]
36pub fn bitfield_specifier(input: TokenStream) -> TokenStream {
37    bitfield_specifier::generate(input.into()).into()
38}
39
40#[cfg(coverage)]
41#[test]
42fn ui_code_coverage() {
43    use runtime_macros::{emulate_attributelike_macro_expansion, emulate_derive_macro_expansion};
44    use std::fs::File;
45
46    let mut run_success = true;
47    for entry in glob::glob("../tests/ui/**/*.rs").unwrap() {
48        let entry = entry.unwrap();
49        run_success &= emulate_attributelike_macro_expansion(
50            File::open(entry.as_path()).unwrap(),
51            &[("bitfield", bitfield::analyse_and_expand)],
52        )
53        .is_ok();
54        run_success &= emulate_derive_macro_expansion(
55            File::open(entry.as_path()).unwrap(),
56            &[("Specifier", bitfield_specifier::generate)],
57        )
58        .is_ok();
59    }
60
61    assert!(run_success);
62}
modular_bitfield_impl/lib.rs

modular_bitfield_impl/
lib.rs
