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Code Generation in Rust vs C++26
(brevzin.github.io)
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this post was submitted on 01 Oct 2024
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Rust
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Correct - Rust's attribute grammar allows any parseable sequence of tokens enclosed in
#[attr ...]basically. Serde specifically requires things to be in strings, but this is not a requirement of modern Rust or modern versions ofsyn(if you're comfortable writing your own parser for the meta).The author is not a Rust expert though, so I'm not surprised to see this assumption. It doesn't take away from the article though.
Edit: for fun,
synhas an example parsing an attribute in an attributeNot only that. We don't just "inject" raw strings with the
syn/quoteduality. Stringified or not, the token tree will be parse-checked into the expectedsyntype before being used in generated code.So the distinction is both wrong and irrelevant. This is what I meant by wrong on multiple levels/layers ๐