1 files changed, 102 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/implicit_hasher.fixed b/src/tools/clippy/tests/ui/implicit_hasher.fixed
new file mode 100644
index 00000000000..2d6dc0274cf
--- /dev/null
+++ b/src/tools/clippy/tests/ui/implicit_hasher.fixed
@@ -0,0 +1,102 @@
+//@aux-build:proc_macros.rs
+#![deny(clippy::implicit_hasher)]
+
+#[macro_use]
+extern crate proc_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, S: ::std::hash::BuildHasher + Default> Foo<i8> for HashMap<K, V, S> {
+    fn make() -> (Self, Self) {
+        // OK, don't suggest to modify these
+        let _: HashMap<i32, i32> = HashMap::new();
+        let _: HashSet<i32> = HashSet::new();
+
+        (HashMap::default(), HashMap::with_capacity_and_hasher(10, Default::default()))
+    }
+}
+impl<K: Hash + Eq, V, S: ::std::hash::BuildHasher + Default> Foo<i8> for (HashMap<K, V, S>,) {
+    fn make() -> (Self, Self) {
+        ((HashMap::default(),), (HashMap::with_capacity_and_hasher(10, Default::default()),))
+    }
+}
+impl<S: ::std::hash::BuildHasher + Default> Foo<i16> for HashMap<String, String, S> {
+    fn make() -> (Self, Self) {
+        (HashMap::default(), HashMap::with_capacity_and_hasher(10, Default::default()))
+    }
+}
+
+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, S: ::std::hash::BuildHasher + Default> Foo<i8> for HashSet<T, S> {
+    fn make() -> (Self, Self) {
+        (HashSet::default(), HashSet::with_capacity_and_hasher(10, Default::default()))
+    }
+}
+impl<S: ::std::hash::BuildHasher + Default> Foo<i16> for HashSet<String, S> {
+    fn make() -> (Self, Self) {
+        (HashSet::default(), HashSet::with_capacity_and_hasher(10, Default::default()))
+    }
+}
+
+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 map<S: ::std::hash::BuildHasher>(map: &mut HashMap<i32, i32, S>) {}
+
+pub fn set<S: ::std::hash::BuildHasher>(set: &mut HashSet<i32, S>) {}
+
+#[inline_macros]
+pub mod gen {
+    use super::*;
+    inline! {
+        impl<K: Hash + Eq, V, S: ::std::hash::BuildHasher + Default> Foo<u8> for HashMap<K, V, S> {
+            fn make() -> (Self, Self) {
+                (HashMap::default(), HashMap::with_capacity_and_hasher(10, Default::default()))
+            }
+        }
+
+        pub fn bar(_map: &mut HashMap<i32, i32>, _set: &mut HashSet<i32>) {}
+    }
+}
+
+// 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
+external! {
+    pub fn f(input: &HashMap<u32, u32>) {}
+}
+
+// #7712
+pub async fn election_vote<S: ::std::hash::BuildHasher>(_data: HashMap<i32, i32, S>) {}
+
+fn main() {}