diff options
Diffstat (limited to 'src/tools/clippy/tests/ui/repeat_vec_with_capacity.stderr')
| -rw-r--r-- | src/tools/clippy/tests/ui/repeat_vec_with_capacity.stderr | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/repeat_vec_with_capacity.stderr b/src/tools/clippy/tests/ui/repeat_vec_with_capacity.stderr new file mode 100644 index 000000000..10b5f1214 --- /dev/null +++ b/src/tools/clippy/tests/ui/repeat_vec_with_capacity.stderr @@ -0,0 +1,40 @@ +error: repeating `Vec::with_capacity` using `vec![x; n]`, which does not retain capacity + --> $DIR/repeat_vec_with_capacity.rs:5:9 + | +LL | vec![Vec::<()>::with_capacity(42); 123]; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: only the last `Vec` will have the capacity + = note: `-D clippy::repeat-vec-with-capacity` implied by `-D warnings` + = help: to override `-D warnings` add `#[allow(clippy::repeat_vec_with_capacity)]` +help: if you intended to initialize multiple `Vec`s with an initial capacity, try + | +LL | (0..123).map(|_| Vec::<()>::with_capacity(42)).collect::<Vec<_>>(); + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +error: repeating `Vec::with_capacity` using `vec![x; n]`, which does not retain capacity + --> $DIR/repeat_vec_with_capacity.rs:11:9 + | +LL | vec![Vec::<()>::with_capacity(42); n]; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: only the last `Vec` will have the capacity +help: if you intended to initialize multiple `Vec`s with an initial capacity, try + | +LL | (0..n).map(|_| Vec::<()>::with_capacity(42)).collect::<Vec<_>>(); + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +error: repeating `Vec::with_capacity` using `iter::repeat`, which does not retain capacity + --> $DIR/repeat_vec_with_capacity.rs:26:9 + | +LL | std::iter::repeat(Vec::<()>::with_capacity(42)); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: none of the yielded `Vec`s will have the requested capacity +help: if you intended to create an iterator that yields `Vec`s with an initial capacity, try + | +LL | std::iter::repeat_with(|| Vec::<()>::with_capacity(42)); + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +error: aborting due to 3 previous errors + |