f8ab9343b8
`concat_idents!` is in the process of being removed, but a few things it is used to test will still be relevant. Migrate these tests to something other than `concat_idents`.
12 lines
335 B
Rust
12 lines
335 B
Rust
// Issue 50403
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// Ensure that `concat` can't create empty identifiers
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// FIXME(macro_metavar_expr_concat): this error message could be improved
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macro_rules! empty {
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() => { ${concat()} } //~ ERROR expected identifier or string literal
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//~^ERROR expected expression
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}
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fn main() {
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let x = empty!();
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}
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