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(not(RUSTC_LINT_REASONS_IS_STABLE), feature(lint_reasons))]
10 // Allow `.into()` to convert
11 // - `proc_macro2::TokenStream` into `proc_macro::TokenStream` in the user-space version.
12 // - `proc_macro::TokenStream` into `proc_macro::TokenStream` in the kernel version.
13 // Clippy warns on this conversion, but it's required by the user-space version.
14 //
15 // Remove once we have `proc_macro2` in the kernel.
16 #![allow(clippy::useless_conversion)]
17 // Documentation is done in the pin-init crate instead.
18 #![allow(missing_docs)]
19
20 use proc_macro::TokenStream;
21
22 #[cfg(kernel)]
23 #[path = "../../../macros/quote.rs"]
24 #[macro_use]
25 #[cfg_attr(not(kernel), rustfmt::skip)]
26 mod quote;
27 #[cfg(not(kernel))]
28 #[macro_use]
29 extern crate quote;
30
31 mod helpers;
32 mod pin_data;
33 mod pinned_drop;
34 mod zeroable;
35
36 #[proc_macro_attribute]
pin_data(inner: TokenStream, item: TokenStream) -> TokenStream37 pub fn pin_data(inner: TokenStream, item: TokenStream) -> TokenStream {
38 pin_data::pin_data(inner.into(), item.into()).into()
39 }
40
41 #[proc_macro_attribute]
pinned_drop(args: TokenStream, input: TokenStream) -> TokenStream42 pub fn pinned_drop(args: TokenStream, input: TokenStream) -> TokenStream {
43 pinned_drop::pinned_drop(args.into(), input.into()).into()
44 }
45
46 #[proc_macro_derive(Zeroable)]
derive_zeroable(input: TokenStream) -> TokenStream47 pub fn derive_zeroable(input: TokenStream) -> TokenStream {
48 zeroable::derive(input.into()).into()
49 }
50
51 #[proc_macro_derive(MaybeZeroable)]
maybe_derive_zeroable(input: TokenStream) -> TokenStream52 pub fn maybe_derive_zeroable(input: TokenStream) -> TokenStream {
53 zeroable::maybe_derive(input.into()).into()
54 }
55