mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-24 05:33:27 +00:00
23a38c4170
Uses type information so it can detect non-literal ranges as well (Range or RangeFrom -- the other range types don't have step_by).
24 lines
559 B
Rust
24 lines
559 B
Rust
#![feature(step_by)]
|
|
#![feature(plugin)]
|
|
#![plugin(clippy)]
|
|
|
|
struct NotARange;
|
|
impl NotARange {
|
|
fn step_by(&self, _: u32) {}
|
|
}
|
|
|
|
#[deny(range_step_by_zero)]
|
|
fn main() {
|
|
(0..1).step_by(0); //~ERROR Range::step_by(0) produces an infinite iterator
|
|
// No warning for non-zero step
|
|
(0..1).step_by(1);
|
|
|
|
(1..).step_by(0); //~ERROR Range::step_by(0) produces an infinite iterator
|
|
|
|
let x = 0..1;
|
|
x.step_by(0); //~ERROR Range::step_by(0) produces an infinite iterator
|
|
|
|
// No error, not a range.
|
|
let y = NotARange;
|
|
y.step_by(0);
|
|
}
|