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https://github.com/rust-lang/rust
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19 lines
536 B
Rust
19 lines
536 B
Rust
macro_rules! values {
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($($token:ident($value:literal) $(as $inner:ty)? => $attr:meta,)*) => {
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#[derive(Debug)]
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pub enum TokenKind {
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$(
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#[$attr]
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$token $($inner)? = $value,
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)*
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}
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};
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}
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//~^^^^^ ERROR expected one of `(`, `,`, `=`, `{`, or `}`, found type `(String)`
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//~| ERROR macro expansion ignores token `(String)` and any following
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values!(STRING(1) as (String) => cfg(test),);
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//~^ ERROR expected one of `!` or `::`, found `<eof>`
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fn main() {}
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