Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 70 insertions, 0 deletions

diff --git a/src/test/ui/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.rs b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.rs
new file mode 100644
index 000000000..ffc496a97
--- /dev/null
+++ b/src/test/ui/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.rs
@@ -0,0 +1,70 @@
+#![deny(unreachable_patterns)]
+#![feature(exhaustive_patterns)]
+#![feature(never_type)]
+
+#[non_exhaustive]
+pub enum UninhabitedEnum {
+}
+
+#[non_exhaustive]
+pub struct UninhabitedTupleStruct(!);
+
+#[non_exhaustive]
+pub struct UninhabitedStruct {
+    _priv: !,
+}
+
+pub enum UninhabitedVariants {
+    #[non_exhaustive] Tuple(!),
+    #[non_exhaustive] Struct { x: ! }
+}
+
+pub enum PartiallyInhabitedVariants {
+    Tuple(u8),
+    #[non_exhaustive] Struct { x: ! }
+}
+
+fn uninhabited_enum() -> Option<UninhabitedEnum> {
+    None
+}
+
+fn uninhabited_variant() -> Option<UninhabitedVariants> {
+    None
+}
+
+fn partially_inhabited_variant() -> PartiallyInhabitedVariants {
+    PartiallyInhabitedVariants::Tuple(3)
+}
+
+fn uninhabited_struct() -> Option<UninhabitedStruct> {
+    None
+}
+
+fn uninhabited_tuple_struct() -> Option<UninhabitedTupleStruct> {
+    None
+}
+
+// This test checks that non-exhaustive types that would normally be considered uninhabited within
+// the defining crate are still considered uninhabited.
+
+fn main() {
+    match uninhabited_enum() {
+        Some(_x) => (), //~ ERROR unreachable pattern
+        None => (),
+    }
+
+    match uninhabited_variant() {
+        Some(_x) => (), //~ ERROR unreachable pattern
+        None => (),
+    }
+
+    while let PartiallyInhabitedVariants::Struct { x } = partially_inhabited_variant() {
+        //~^ ERROR unreachable pattern
+    }
+
+    while let Some(_x) = uninhabited_struct() { //~ ERROR unreachable pattern
+    }
+
+    while let Some(_x) = uninhabited_tuple_struct() { //~ ERROR unreachable pattern
+    }
+}