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Parse block expr as verbatim in non-full mode #1478

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dtolnay merged 1 commit into master from nonfullblock

Jul 2, 2023

Owner

dtolnay commented Jul 2, 2023

This commonly comes up in array sizes, when working with const generic parameters computed from a type parameter.

#![feature(generic_const_exprs)]

struct Foo<T: strum::EnumCount>
where
    [(); { T::COUNT }]:,
{
    foo: heapless::Vec<u8, { T::COUNT }>,
}

We can't parse them as Expr::Block because that data structure contains a field of type Vec<Stmt>, and Stmt is "full"-only.

But parsing as Expr::Verbatim will at least allow this where-clause to round trip.


          Parse block expr as verbatim in non-full mode

5325bb6

dtolnay merged commit e9a3846 into master

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dtolnay deleted the nonfullblock branch

July 2, 2023 19:39

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