From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- src/test/ui/borrowck/borrowck-object-lifetime.rs | 40 ++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 src/test/ui/borrowck/borrowck-object-lifetime.rs (limited to 'src/test/ui/borrowck/borrowck-object-lifetime.rs') diff --git a/src/test/ui/borrowck/borrowck-object-lifetime.rs b/src/test/ui/borrowck/borrowck-object-lifetime.rs new file mode 100644 index 000000000..137a9adbc --- /dev/null +++ b/src/test/ui/borrowck/borrowck-object-lifetime.rs @@ -0,0 +1,40 @@ +// Test that borrows that occur due to calls to object methods +// properly "claim" the object path. + + + +trait Foo { + fn borrowed(&self) -> &(); + fn mut_borrowed(&mut self) -> &(); +} + +fn borrowed_receiver(x: &dyn Foo) { + let y = x.borrowed(); + let z = x.borrowed(); + z.use_ref(); + y.use_ref(); +} + +fn mut_borrowed_receiver(x: &mut dyn Foo) { + let y = x.borrowed(); + let z = x.mut_borrowed(); //~ ERROR cannot borrow + y.use_ref(); +} + +fn mut_owned_receiver(mut x: Box) { + let y = x.borrowed(); + let z = &mut x; //~ ERROR cannot borrow + y.use_ref(); +} + +fn imm_owned_receiver(mut x: Box) { + let y = x.borrowed(); + let z = &x; + z.use_ref(); + y.use_ref(); +} + +fn main() {} + +trait Fake { fn use_mut(&mut self) { } fn use_ref(&self) { } } +impl Fake for T { } -- cgit v1.2.3