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// Allows to track issue #75492:
// https://github.com/rust-lang/rust/issues/75492
use std::iter;
fn main() {
format!("A number: {}". iter::once(42).next().unwrap());
//~^ ERROR expected `,`, found `.`
// Other kind of types are also checked:
format!("A number: {}" / iter::once(42).next().unwrap());
//~^ ERROR expected `,`, found `/`
format!("A number: {}"; iter::once(42).next().unwrap());
//~^ ERROR expected `,`, found `;`
// Note: this character is an COMBINING COMMA BELOW unicode char
format!("A number: {}" ̦ iter::once(42).next().unwrap());
//~^ ERROR expected `,`, found `iter`
//~^^ ERROR unknown start of token: \u{326}
// Here recovery is tested.
// If the `compile_error!` is emitted, then the parser is able to recover
// from the incorrect first separator.
format!("{}". compile_error!("fail"));
//~^ ERROR expected `,`, found `.`
//~^^ ERROR fail
}
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