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e957b9cda3
Other macros might also want to parse generics. Additionally this makes the code easier to read, as the next commit will introduce more code in `#[pin_data]`. Also add more comments to explain how parsing generics work. Signed-off-by: Benno Lossin <benno.lossin@proton.me> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Gary Guo <gary@garyguo.net> Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com> Link: https://lore.kernel.org/r/20230424081112.99890-2-benno.lossin@proton.me Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
27 lines
766 B
Rust
27 lines
766 B
Rust
// SPDX-License-Identifier: Apache-2.0 OR MIT
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use crate::helpers::{parse_generics, Generics};
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use proc_macro::TokenStream;
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pub(crate) fn pin_data(args: TokenStream, input: TokenStream) -> TokenStream {
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// This proc-macro only does some pre-parsing and then delegates the actual parsing to
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// `kernel::__pin_data!`.
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let (
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Generics {
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impl_generics,
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ty_generics,
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},
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mut rest,
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) = parse_generics(input);
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// This should be the body of the struct `{...}`.
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let last = rest.pop();
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quote!(::kernel::__pin_data! {
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parse_input:
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@args(#args),
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@sig(#(#rest)*),
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@impl_generics(#(#impl_generics)*),
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@ty_generics(#(#ty_generics)*),
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@body(#last),
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})
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}
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