LYR-PAR0005

range operators chained

error · spec 08-expressions

A range a..b or a..=b is followed by another range operator, as in 1..5..9.

Explanation

The range operators have no associativity: a..b..c would be a range whose bound is a range, or the other way round, and neither is a value the language has.

Write one range with both of its bounds.

Wrong

fn main(): void {
    let r = 1..5..9;
}

Right

fn main(): void {
    let r = 1..9;
    let _ = r;
}