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] 37 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] 42 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)] 47 pub fn derive_zeroable(input: TokenStream) -> TokenStream { 48 zeroable::derive(input.into()).into() 49 } 50 51 #[proc_macro_derive(MaybeZeroable)] 52 pub fn maybe_derive_zeroable(input: TokenStream) -> TokenStream { 53 zeroable::maybe_derive(input.into()).into() 54 } 55