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Diffstat (limited to '')
-rw-r--r-- | src/tools/clippy/tests/ui/default_instead_of_iter_empty.rs | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/default_instead_of_iter_empty.rs b/src/tools/clippy/tests/ui/default_instead_of_iter_empty.rs new file mode 100644 index 000000000..2630519c4 --- /dev/null +++ b/src/tools/clippy/tests/ui/default_instead_of_iter_empty.rs @@ -0,0 +1,21 @@ +// run-rustfix +#![warn(clippy::default_instead_of_iter_empty)] +#![allow(dead_code)] +use std::collections::HashMap; + +#[derive(Default)] +struct Iter { + iter: std::iter::Empty<usize>, +} + +fn main() { + // Do lint. + let _ = std::iter::Empty::<usize>::default(); + let _ = std::iter::Empty::<HashMap<usize, usize>>::default(); + let _foo: std::iter::Empty<usize> = std::iter::Empty::default(); + + // Do not lint. + let _ = Vec::<usize>::default(); + let _ = String::default(); + let _ = Iter::default(); +} |