error: expected one of `(`, `,`, `=`, `{`, or `}`, found type `(String)` --> $DIR/syntax-error-recovery.rs:7:26 | LL | $token $($inner)? = $value, | ^^^^^^ expected one of `(`, `,`, `=`, `{`, or `}` ... LL | values!(STRING(1) as (String) => cfg(test),); | -------------------------------------------- in this macro invocation | = help: enum variants can be `Variant`, `Variant = `, `Variant(Type, ..., TypeN)` or `Variant { fields: Types }` = note: this error originates in the macro `values` (in Nightly builds, run with -Z macro-backtrace for more info) error: macro expansion ignores token `(String)` and any following --> $DIR/syntax-error-recovery.rs:7:26 | LL | $token $($inner)? = $value, | ^^^^^^ ... LL | values!(STRING(1) as (String) => cfg(test),); | -------------------------------------------- caused by the macro expansion here | = note: the usage of `values!` is likely invalid in item context error: expected one of `!` or `::`, found `` --> $DIR/syntax-error-recovery.rs:15:9 | LL | values!(STRING(1) as (String) => cfg(test),); | ^^^^^^ expected one of `!` or `::` error: aborting due to 3 previous errors