f372476d2c
Let qpath contain NtTy: `<$:ty as $:ty>::…` Example: ```rust macro_rules! m { (<$type:ty as $trait:ty>::$name:ident) => { <$type as $trait>::$name }; } fn main() { let _: m!(<str as ToOwned>::Owned); } ``` Previous behavior: ```console error: expected identifier, found `ToOwned` --> src/main.rs:3:19 | 3 | <$type as $trait>::$name | ^^^^^^ expected identifier ... 8 | let _: m!(<str as ToOwned>::Owned); | --------------------------- | | | this macro call doesn't expand to a type | in this macro invocation ``` The <code>expected identifier, found \`ToOwned\`</code> error is particularly silly. I think it should be fine to accept this code as long as $trait is of the form `TyKind::Path(None, path)`; if it is any other kind of `NtTy`, we'll keep the same behavior as before. |
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