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-rw-r--r--tests/ui/specialization/issue-59435.stderr3
-rw-r--r--tests/ui/specialization/min_specialization/bad-const-wf-doesnt-specialize.rs12
-rw-r--r--tests/ui/specialization/min_specialization/bad-const-wf-doesnt-specialize.stderr14
3 files changed, 28 insertions, 1 deletions
diff --git a/tests/ui/specialization/issue-59435.stderr b/tests/ui/specialization/issue-59435.stderr
index 211459406..e8a12e4d9 100644
--- a/tests/ui/specialization/issue-59435.stderr
+++ b/tests/ui/specialization/issue-59435.stderr
@@ -11,7 +11,8 @@ LL | type MyType: Default;
| ^^^^^^^ required by this bound in `MyTrait::MyType`
help: consider annotating `MyStruct` with `#[derive(Default)]`
|
-LL | #[derive(Default)]
+LL + #[derive(Default)]
+LL | struct MyStruct {}
|
error: aborting due to previous error
diff --git a/tests/ui/specialization/min_specialization/bad-const-wf-doesnt-specialize.rs b/tests/ui/specialization/min_specialization/bad-const-wf-doesnt-specialize.rs
new file mode 100644
index 000000000..5fd7c647c
--- /dev/null
+++ b/tests/ui/specialization/min_specialization/bad-const-wf-doesnt-specialize.rs
@@ -0,0 +1,12 @@
+#![feature(min_specialization)]
+
+// An impl that has an erroneous const substitution should not specialize one
+// that is well-formed.
+#[derive(Clone)]
+struct S<const L: usize>;
+
+impl<const N: i32> Copy for S<N> {}
+//~^ ERROR the constant `N` is not of type `usize`
+impl<const M: usize> Copy for S<M> {}
+
+fn main() {}
diff --git a/tests/ui/specialization/min_specialization/bad-const-wf-doesnt-specialize.stderr b/tests/ui/specialization/min_specialization/bad-const-wf-doesnt-specialize.stderr
new file mode 100644
index 000000000..83f311efd
--- /dev/null
+++ b/tests/ui/specialization/min_specialization/bad-const-wf-doesnt-specialize.stderr
@@ -0,0 +1,14 @@
+error: the constant `N` is not of type `usize`
+ --> $DIR/bad-const-wf-doesnt-specialize.rs:8:29
+ |
+LL | impl<const N: i32> Copy for S<N> {}
+ | ^^^^ expected `usize`, found `i32`
+ |
+note: required by a bound in `S`
+ --> $DIR/bad-const-wf-doesnt-specialize.rs:6:10
+ |
+LL | struct S<const L: usize>;
+ | ^^^^^^^^^^^^^^ required by this bound in `S`
+
+error: aborting due to previous error
+