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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:41 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:41 +0000
commit4f9fe856a25ab29345b90e7725509e9ee38a37be (patch)
treee4ffd8a9374cae7b21f7cbfb352927e0e074aff6 /tests/ui/union
parentAdding upstream version 1.68.2+dfsg1. (diff)
downloadrustc-upstream/1.69.0+dfsg1.tar.xz
rustc-upstream/1.69.0+dfsg1.zip
Adding upstream version 1.69.0+dfsg1.upstream/1.69.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--tests/ui/union/projection-as-union-type-error-2.rs20
-rw-r--r--tests/ui/union/projection-as-union-type-error-2.stderr17
-rw-r--r--tests/ui/union/projection-as-union-type-error.rs15
-rw-r--r--tests/ui/union/projection-as-union-type-error.stderr9
-rw-r--r--tests/ui/union/projection-as-union-type.rs19
5 files changed, 80 insertions, 0 deletions
diff --git a/tests/ui/union/projection-as-union-type-error-2.rs b/tests/ui/union/projection-as-union-type-error-2.rs
new file mode 100644
index 000000000..b88167b3b
--- /dev/null
+++ b/tests/ui/union/projection-as-union-type-error-2.rs
@@ -0,0 +1,20 @@
+// Test to ensure that there is no ICE when normalizing a projection
+// which is invalid (from <https://github.com/rust-lang/rust/pull/106938>).
+
+#![crate_type = "lib"]
+
+trait Identity {
+ type Identity;
+}
+trait NotImplemented {}
+
+impl<T: NotImplemented> Identity for T {
+ type Identity = Self;
+}
+
+type Foo = u8;
+
+union Bar {
+ a: <Foo as Identity>::Identity, //~ ERROR
+ b: u8,
+}
diff --git a/tests/ui/union/projection-as-union-type-error-2.stderr b/tests/ui/union/projection-as-union-type-error-2.stderr
new file mode 100644
index 000000000..bab226f27
--- /dev/null
+++ b/tests/ui/union/projection-as-union-type-error-2.stderr
@@ -0,0 +1,17 @@
+error[E0277]: the trait bound `u8: NotImplemented` is not satisfied
+ --> $DIR/projection-as-union-type-error-2.rs:18:8
+ |
+LL | a: <Foo as Identity>::Identity,
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `NotImplemented` is not implemented for `u8`
+ |
+note: required for `u8` to implement `Identity`
+ --> $DIR/projection-as-union-type-error-2.rs:11:25
+ |
+LL | impl<T: NotImplemented> Identity for T {
+ | -------------- ^^^^^^^^ ^
+ | |
+ | unsatisfied trait bound introduced here
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/union/projection-as-union-type-error.rs b/tests/ui/union/projection-as-union-type-error.rs
new file mode 100644
index 000000000..17091c35f
--- /dev/null
+++ b/tests/ui/union/projection-as-union-type-error.rs
@@ -0,0 +1,15 @@
+// Test to ensure that there is no ICE when normalizing a projection
+// which is invalid (from <https://github.com/rust-lang/rust/pull/106938>).
+
+#![crate_type = "lib"]
+
+pub trait Identity {
+ type Identity;
+}
+
+pub type Foo = u8;
+
+pub union Bar {
+ a: <Foo as Identity>::Identity, //~ ERROR
+ b: u8,
+}
diff --git a/tests/ui/union/projection-as-union-type-error.stderr b/tests/ui/union/projection-as-union-type-error.stderr
new file mode 100644
index 000000000..e4fbe9603
--- /dev/null
+++ b/tests/ui/union/projection-as-union-type-error.stderr
@@ -0,0 +1,9 @@
+error[E0277]: the trait bound `u8: Identity` is not satisfied
+ --> $DIR/projection-as-union-type-error.rs:13:9
+ |
+LL | a: <Foo as Identity>::Identity,
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Identity` is not implemented for `u8`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/union/projection-as-union-type.rs b/tests/ui/union/projection-as-union-type.rs
new file mode 100644
index 000000000..143434c96
--- /dev/null
+++ b/tests/ui/union/projection-as-union-type.rs
@@ -0,0 +1,19 @@
+// Ensures that we can use projections as union field's type.
+// check-pass
+
+#![crate_type = "lib"]
+
+pub trait Identity {
+ type Identity;
+}
+
+impl<T> Identity for T {
+ type Identity = Self;
+}
+
+pub type Foo = u8;
+
+pub union Bar {
+ pub a: <Foo as Identity>::Identity,
+ pub b: u8,
+}