Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 103 insertions, 0 deletions

diff --git a/third_party/rust/rental/tests/simple_ref.rs b/third_party/rust/rental/tests/simple_ref.rs
new file mode 100644
index 0000000000..2cb7765578
--- /dev/null
+++ b/third_party/rust/rental/tests/simple_ref.rs
@@ -0,0 +1,103 @@
+#[macro_use]
+extern crate rental;
+
+
+pub struct Foo {
+	i: i32,
+}
+
+impl Foo {
+	fn try_borrow(&self) -> Result<&i32, ()> { Ok(&self.i) }
+	fn fail_borrow(&self) -> Result<&i32, ()> { Err(()) }
+}
+
+pub struct FooRef<'i> {
+	iref: &'i i32,
+	misc: i32,
+}
+
+
+impl<'i> ::std::ops::Deref for FooRef<'i> {
+	type Target = i32;
+
+	fn deref(&self) -> &i32 { self.iref }
+}
+
+
+rental! {
+	mod rentals {
+		use super::*;
+
+		#[rental]
+		pub struct SimpleRef {
+			foo: Box<Foo>,
+			fr: FooRef<'foo>,
+		}
+	}
+}
+
+
+#[test]
+fn new() {
+	let foo = Foo { i: 5 };
+	let _ = rentals::SimpleRef::new(Box::new(foo), |foo| FooRef{ iref: &foo.i, misc: 12 });
+
+	let foo = Foo { i: 5 };
+	let sr: rental::RentalResult<rentals::SimpleRef, (), _> = rentals::SimpleRef::try_new(Box::new(foo), |foo| Ok(FooRef{ iref: foo.try_borrow()?, misc: 12 }));
+	assert!(sr.is_ok());
+
+	let foo = Foo { i: 5 };
+	let sr: rental::RentalResult<rentals::SimpleRef, (), _> = rentals::SimpleRef::try_new(Box::new(foo), |foo| Ok(FooRef{ iref: foo.fail_borrow()?, misc: 12 }));
+	assert!(sr.is_err());
+}
+
+
+#[test]
+fn read() {
+	let foo = Foo { i: 5 };
+
+	let mut sr = rentals::SimpleRef::new(Box::new(foo), |foo| FooRef{ iref: &foo.i, misc: 12 });
+
+	{
+		let i: i32 = sr.rent(|iref| **iref);
+		assert_eq!(i, 5);
+	}
+
+	{
+		let iref: &i32 = sr.ref_rent(|fr| fr.iref);
+		assert_eq!(*iref, 5);
+		let iref: Option<&i32> = sr.maybe_ref_rent(|fr| Some(fr.iref));
+		assert_eq!(iref, Some(&5));
+		let iref: Result<&i32, ()> = sr.try_ref_rent(|fr| Ok(fr.iref));
+		assert_eq!(iref, Ok(&5));
+	}
+
+	{
+		assert_eq!(sr.head().i, 5);
+		assert_eq!(sr.rent_all(|borrows| borrows.foo.i), 5);
+		assert_eq!(sr.rent_all_mut(|borrows| borrows.foo.i), 5);
+	}
+
+	{
+		let iref: Option<&i32> = sr.maybe_ref_rent_all(|borrows| Some(borrows.fr.iref));
+		assert_eq!(iref, Some(&5));
+		let iref: Result<&i32, ()> = sr.try_ref_rent_all(|borrows| Ok(borrows.fr.iref));
+		assert_eq!(iref, Ok(&5));
+	}
+
+	{
+		let iref: &mut i32 = sr.ref_rent_all_mut(|borrows| &mut borrows.fr.misc);
+		*iref = 57;
+		assert_eq!(*iref, 57);
+	}
+
+	{
+		let iref: Option<&mut i32> = sr.maybe_ref_rent_all_mut(|borrows| Some(&mut borrows.fr.misc));
+		assert_eq!(iref, Some(&mut 57));
+	}
+
+	{
+		let iref: Result<&mut i32, ()> = sr.try_ref_rent_all_mut(|borrows| Ok(&mut borrows.fr.misc));
+		assert_eq!(iref, Ok(&mut 57));
+	}
+}