49ed25b5d2
Notes about tests: - tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.rs: some messages are now duplicated due to repeated parsing. - tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.rs: ditto. - `tests/ui/proc-macro/macro-rules-derive-cfg.rs`: the diff looks large but the only difference is the insertion of a single invisible-delimited group around a metavar. - `tests/ui/attributes/nonterminal-expansion.rs`: a slight span degradation, somehow related to the recent massive attr parsing rewrite (#135726). I couldn't work out exactly what is going wrong, but I don't think it's worth holding things up for a single slightly suboptimal error message.
17 lines
574 B
Rust
17 lines
574 B
Rust
struct S(u8, (u8, u8));
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macro_rules! generate_field_accesses {
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($a:tt, $b:literal, $c:expr) => {
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let s = S(0, (0, 0));
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s.$a; // OK
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{ s.$b; } //~ ERROR unexpected token: `literal` metavariable
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `literal` metavariable
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{ s.$c; } //~ ERROR unexpected token: `expr` metavariable
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found `expr` metavariable
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};
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}
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fn main() {
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generate_field_accesses!(1.1, 1.1, 1.1);
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}
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