LYR-PAR0011

a type is missing

error · spec 02-grammar

A type is needed — after :, in a type argument list, after as or is — and the token there begins none; or a dotted type path ends in something else than a name.

Explanation

A type is a name or a dotted path with its arguments, a function type fn(…) -> T, a tuple or grouping in parentheses, an optional ?T, an array T[].

Write the type.

Wrong

fn show(x: ): void {
}

fn main(): void {
}

Right

fn show(x: int): void {
    let _ = x;
}

fn main(): void {
    show(1);
}