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Allow lifetime params to parse after const params #920

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dtolnay opened this issue Nov 6, 2020 · 0 comments · Fixed by #927

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syntax

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dtolnay commented Nov 6, 2020

As seen in:

Rustc defers this error until after parse, so e.g. the following is syntactically valid Rust code that rustc accepts:

#[cfg(any())]
struct S<const N: usize, 'a, T, 'b, const M: usize, U>;

Playground: https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=e561f9d460eeae02232bc44b069ba6d7

dtolnay added the syntax label

dtolnay mentioned this issue

Allow lifetime params to parse after const params #927

Merged

dtolnay closed this as completed in #927

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