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Replace `pop().unwrap().into_tuple()` with `pop_pair().unwrap().into_tuple()` as `Punctuated::pop()` now returns `Option<T>` instead of `Option<Pair<T, P>>` in syn 3.
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tomtau
July 22, 2026 13:39
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CAD97
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July 22, 2026 14:57
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Upgrades the
syndependency in thepest-astderive crate to version 3.Changes
derive/Cargo.toml:synversion"2"→"3"derive/src/attributes.rs:Punctuated::pop()→pop_pair()(2 call sites)In syn 3,
Punctuated::pop()returnsOption<T>directly instead ofOption<Pair<T, P>>. Thepop_pair()method preserves the previous semantics needed here to destructure both the segment and its trailing punctuation.