mirror of https://github.com/torvalds/linux.git
19 lines
437 B
Rust
19 lines
437 B
Rust
// SPDX-License-Identifier: Apache-2.0 OR MIT
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use proc_macro2::TokenStream;
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use quote::ToTokens;
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pub(crate) struct TokensOrDefault<'a, T: 'a>(pub &'a Option<T>);
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impl<'a, T> ToTokens for TokensOrDefault<'a, T>
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where
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T: ToTokens + Default,
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{
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fn to_tokens(&self, tokens: &mut TokenStream) {
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match self.0 {
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Some(t) => t.to_tokens(tokens),
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None => T::default().to_tokens(tokens),
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}
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}
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}
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