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Diffstat (limited to '')
-rw-r--r-- | src/tools/clippy/tests/ui/iter_nth_zero.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/iter_nth_zero.rs b/src/tools/clippy/tests/ui/iter_nth_zero.rs new file mode 100644 index 000000000..7c968d498 --- /dev/null +++ b/src/tools/clippy/tests/ui/iter_nth_zero.rs @@ -0,0 +1,31 @@ +// run-rustfix + +#![warn(clippy::iter_nth_zero)] +use std::collections::HashSet; + +struct Foo; + +impl Foo { + fn nth(&self, index: usize) -> usize { + index + 1 + } +} + +fn main() { + let f = Foo {}; + f.nth(0); // lint does not apply here + + let mut s = HashSet::new(); + s.insert(1); + let _x = s.iter().nth(0); + + let mut s2 = HashSet::new(); + s2.insert(2); + let mut iter = s2.iter(); + let _y = iter.nth(0); + + let mut s3 = HashSet::new(); + s3.insert(3); + let mut iter2 = s3.iter(); + let _unwrapped = iter2.nth(0).unwrap(); +} |