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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/tools/clippy/tests/ui/implicit_hasher.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/tools/clippy/tests/ui/implicit_hasher.rs')
-rw-r--r-- | src/tools/clippy/tests/ui/implicit_hasher.rs | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/implicit_hasher.rs b/src/tools/clippy/tests/ui/implicit_hasher.rs new file mode 100644 index 000000000..fd96ca3f4 --- /dev/null +++ b/src/tools/clippy/tests/ui/implicit_hasher.rs @@ -0,0 +1,102 @@ +// aux-build:implicit_hasher_macros.rs +#![deny(clippy::implicit_hasher)] +#![allow(unused)] + +#[macro_use] +extern crate implicit_hasher_macros; + +use std::cmp::Eq; +use std::collections::{HashMap, HashSet}; +use std::hash::{BuildHasher, Hash}; + +pub trait Foo<T>: Sized { + fn make() -> (Self, Self); +} + +impl<K: Hash + Eq, V> Foo<i8> for HashMap<K, V> { + fn make() -> (Self, Self) { + // OK, don't suggest to modify these + let _: HashMap<i32, i32> = HashMap::new(); + let _: HashSet<i32> = HashSet::new(); + + (HashMap::new(), HashMap::with_capacity(10)) + } +} +impl<K: Hash + Eq, V> Foo<i8> for (HashMap<K, V>,) { + fn make() -> (Self, Self) { + ((HashMap::new(),), (HashMap::with_capacity(10),)) + } +} +impl Foo<i16> for HashMap<String, String> { + fn make() -> (Self, Self) { + (HashMap::new(), HashMap::with_capacity(10)) + } +} + +impl<K: Hash + Eq, V, S: BuildHasher + Default> Foo<i32> for HashMap<K, V, S> { + fn make() -> (Self, Self) { + (HashMap::default(), HashMap::with_capacity_and_hasher(10, S::default())) + } +} +impl<S: BuildHasher + Default> Foo<i64> for HashMap<String, String, S> { + fn make() -> (Self, Self) { + (HashMap::default(), HashMap::with_capacity_and_hasher(10, S::default())) + } +} + +impl<T: Hash + Eq> Foo<i8> for HashSet<T> { + fn make() -> (Self, Self) { + (HashSet::new(), HashSet::with_capacity(10)) + } +} +impl Foo<i16> for HashSet<String> { + fn make() -> (Self, Self) { + (HashSet::new(), HashSet::with_capacity(10)) + } +} + +impl<T: Hash + Eq, S: BuildHasher + Default> Foo<i32> for HashSet<T, S> { + fn make() -> (Self, Self) { + (HashSet::default(), HashSet::with_capacity_and_hasher(10, S::default())) + } +} +impl<S: BuildHasher + Default> Foo<i64> for HashSet<String, S> { + fn make() -> (Self, Self) { + (HashSet::default(), HashSet::with_capacity_and_hasher(10, S::default())) + } +} + +pub fn foo(_map: &mut HashMap<i32, i32>, _set: &mut HashSet<i32>) {} + +macro_rules! gen { + (impl) => { + impl<K: Hash + Eq, V> Foo<u8> for HashMap<K, V> { + fn make() -> (Self, Self) { + (HashMap::new(), HashMap::with_capacity(10)) + } + } + }; + + (fn $name:ident) => { + pub fn $name(_map: &mut HashMap<i32, i32>, _set: &mut HashSet<i32>) {} + }; +} +#[rustfmt::skip] +gen!(impl); +gen!(fn bar); + +// When the macro is in a different file, the suggestion spans can't be combined properly +// and should not cause an ICE +// See #2707 +#[macro_use] +#[path = "auxiliary/test_macro.rs"] +pub mod test_macro; +__implicit_hasher_test_macro!(impl<K, V> for HashMap<K, V> where V: test_macro::A); + +// #4260 +implicit_hasher_fn!(); + +// #7712 +pub async fn election_vote(_data: HashMap<i32, i32>) {} + +fn main() {} |