mirror of https://github.com/rust-lang/rust.git
32 lines
900 B
Rust
32 lines
900 B
Rust
#![feature(step_by)]
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#![feature(inclusive_range_syntax)]
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#![feature(plugin)]
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#![plugin(clippy)]
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struct NotARange;
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impl NotARange {
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fn step_by(&self, _: u32) {}
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}
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#[deny(range_step_by_zero, range_zip_with_len)]
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fn main() {
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(0..1).step_by(0); //~ERROR Range::step_by(0) produces an infinite iterator
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// No warning for non-zero step
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(0..1).step_by(1);
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(1..).step_by(0); //~ERROR Range::step_by(0) produces an infinite iterator
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(1...2).step_by(0); //~ERROR Range::step_by(0) produces an infinite iterator
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let x = 0..1;
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x.step_by(0); //~ERROR Range::step_by(0) produces an infinite iterator
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// No error, not a range.
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let y = NotARange;
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y.step_by(0);
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let v1 = vec![1,2,3];
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let v2 = vec![4,5];
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let _x = v1.iter().zip(0..v1.len()); //~ERROR It is more idiomatic to use v1.iter().enumerate()
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let _y = v1.iter().zip(0..v2.len()); // No error
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}
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