Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: Apache-2.0 OR MIT
2
3// When fixdep scans this, it will find this string `CONFIG_RUSTC_VERSION_TEXT`
4// and thus add a dependency on `include/config/RUSTC_VERSION_TEXT`, which is
5// touched by Kconfig when the version string from the compiler changes.
6
7//! `pin-init` proc macros.
8
9#![cfg_attr(USE_RUSTC_FEATURES, feature(lint_reasons))]
10// Documentation is done in the pin-init crate instead.
11#![allow(missing_docs)]
12
13use proc_macro::TokenStream;
14use syn::parse_macro_input;
15
16use crate::diagnostics::DiagCtxt;
17
18mod diagnostics;
19mod init;
20mod pin_data;
21mod pinned_drop;
22mod zeroable;
23
24#[proc_macro_attribute]
25pub fn pin_data(args: TokenStream, input: TokenStream) -> TokenStream {
26 let args = parse_macro_input!(args);
27 let input = parse_macro_input!(input);
28 DiagCtxt::with(|dcx| pin_data::pin_data(args, input, dcx)).into()
29}
30
31#[proc_macro_attribute]
32pub fn pinned_drop(args: TokenStream, input: TokenStream) -> TokenStream {
33 let args = parse_macro_input!(args);
34 let input = parse_macro_input!(input);
35 DiagCtxt::with(|dcx| pinned_drop::pinned_drop(args, input, dcx)).into()
36}
37
38#[proc_macro_derive(Zeroable)]
39pub fn derive_zeroable(input: TokenStream) -> TokenStream {
40 let input = parse_macro_input!(input);
41 DiagCtxt::with(|dcx| zeroable::derive(input, dcx)).into()
42}
43
44#[proc_macro_derive(MaybeZeroable)]
45pub fn maybe_derive_zeroable(input: TokenStream) -> TokenStream {
46 let input = parse_macro_input!(input);
47 DiagCtxt::with(|dcx| zeroable::maybe_derive(input, dcx)).into()
48}
49#[proc_macro]
50pub fn init(input: TokenStream) -> TokenStream {
51 let input = parse_macro_input!(input);
52 DiagCtxt::with(|dcx| init::expand(input, Some("::core::convert::Infallible"), false, dcx))
53 .into()
54}
55
56#[proc_macro]
57pub fn pin_init(input: TokenStream) -> TokenStream {
58 let input = parse_macro_input!(input);
59 DiagCtxt::with(|dcx| init::expand(input, Some("::core::convert::Infallible"), true, dcx)).into()
60}