From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../ui/generic-associated-types/impl_bounds.stderr | 92 ++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 src/test/ui/generic-associated-types/impl_bounds.stderr

(limited to 'src/test/ui/generic-associated-types/impl_bounds.stderr')

diff --git a/src/test/ui/generic-associated-types/impl_bounds.stderr b/src/test/ui/generic-associated-types/impl_bounds.stderr
new file mode 100644
index 000000000..ce79c635a
--- /dev/null
+++ b/src/test/ui/generic-associated-types/impl_bounds.stderr
@@ -0,0 +1,92 @@
+error[E0276]: impl has stricter requirements than trait
+  --> $DIR/impl_bounds.rs:15:39
+   |
+LL |     type A<'a> where Self: 'a;
+   |     ---------- definition of `A` from trait
+...
+LL |     type A<'a> = (&'a ()) where Self: 'static;
+   |                                       ^^^^^^^ impl has extra requirement `T: 'static`
+
+error[E0276]: impl has stricter requirements than trait
+  --> $DIR/impl_bounds.rs:17:48
+   |
+LL |     type B<'a, 'b> where 'a: 'b;
+   |     -------------- definition of `B` from trait
+...
+LL |     type B<'a, 'b> = (&'a(), &'b ()) where 'b: 'a;
+   |                                                ^^ impl has extra requirement `'b: 'a`
+
+error[E0478]: lifetime bound not satisfied
+  --> $DIR/impl_bounds.rs:17:22
+   |
+LL |     type B<'a, 'b> where 'a: 'b;
+   |     -------------- definition of `B` from trait
+...
+LL |     type B<'a, 'b> = (&'a(), &'b ()) where 'b: 'a;
+   |                      ^^^^^^^^^^^^^^^             - help: try copying this clause from the trait: `, 'a: 'b`
+   |
+note: lifetime parameter instantiated with the lifetime `'a` as defined here
+  --> $DIR/impl_bounds.rs:17:12
+   |
+LL |     type B<'a, 'b> = (&'a(), &'b ()) where 'b: 'a;
+   |            ^^
+note: but lifetime parameter must outlive the lifetime `'b` as defined here
+  --> $DIR/impl_bounds.rs:17:16
+   |
+LL |     type B<'a, 'b> = (&'a(), &'b ()) where 'b: 'a;
+   |                ^^
+
+error[E0277]: the trait bound `T: Copy` is not satisfied
+  --> $DIR/impl_bounds.rs:20:33
+   |
+LL |     type C = String where Self: Copy;
+   |                                 ^^^^ the trait `Copy` is not implemented for `T`
+   |
+note: required because of the requirements on the impl of `Copy` for `Fooy<T>`
+  --> $DIR/impl_bounds.rs:11:10
+   |
+LL | #[derive(Copy, Clone)]
+   |          ^^^^
+note: the requirement `Fooy<T>: Copy` appears on the `impl`'s associated type `C` but not on the corresponding trait's associated type
+  --> $DIR/impl_bounds.rs:7:10
+   |
+LL | trait Foo {
+   |       --- in this trait
+...
+LL |     type C where Self: Clone;
+   |          ^ this trait's associated type doesn't have the requirement `Fooy<T>: Copy`
+   = note: this error originates in the derive macro `Copy` (in Nightly builds, run with -Z macro-backtrace for more info)
+help: consider restricting type parameter `T`
+   |
+LL | impl<T: std::marker::Copy> Foo for Fooy<T> {
+   |       +++++++++++++++++++
+
+error[E0277]: the trait bound `T: Copy` is not satisfied
+  --> $DIR/impl_bounds.rs:22:24
+   |
+LL |     fn d() where Self: Copy {}
+   |                        ^^^^ the trait `Copy` is not implemented for `T`
+   |
+note: required because of the requirements on the impl of `Copy` for `Fooy<T>`
+  --> $DIR/impl_bounds.rs:11:10
+   |
+LL | #[derive(Copy, Clone)]
+   |          ^^^^
+note: the requirement `Fooy<T>: Copy` appears on the `impl`'s method `d` but not on the corresponding trait's method
+  --> $DIR/impl_bounds.rs:8:8
+   |
+LL | trait Foo {
+   |       --- in this trait
+...
+LL |     fn d() where Self: Clone;
+   |        ^ this trait's method doesn't have the requirement `Fooy<T>: Copy`
+   = note: this error originates in the derive macro `Copy` (in Nightly builds, run with -Z macro-backtrace for more info)
+help: consider restricting type parameter `T`
+   |
+LL | impl<T: std::marker::Copy> Foo for Fooy<T> {
+   |       +++++++++++++++++++
+
+error: aborting due to 5 previous errors
+
+Some errors have detailed explanations: E0276, E0277, E0478.
+For more information about an error, try `rustc --explain E0276`.
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