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18 lines
531 B
Rust
18 lines
531 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.$b; } //~ ERROR unexpected token: `1.1`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found literal `1.1`
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{ s.$c; } //~ ERROR unexpected token: `1.1`
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//~| ERROR expected one of `.`, `;`, `?`, `}`, or an operator, found expression `1.1`
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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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