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/transmute/transmute-impl.rs | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 src/test/ui/transmute/transmute-impl.rs (limited to 'src/test/ui/transmute/transmute-impl.rs') diff --git a/src/test/ui/transmute/transmute-impl.rs b/src/test/ui/transmute/transmute-impl.rs new file mode 100644 index 000000000..df422bda1 --- /dev/null +++ b/src/test/ui/transmute/transmute-impl.rs @@ -0,0 +1,25 @@ +// normalize-stderr-test "\d+ bits" -> "N bits" + +// Tests that are conservative around thin/fat pointer mismatches. + +#![allow(dead_code)] + +use std::mem::transmute; + +struct Foo { + t: Box +} + +impl Foo { + fn m(x: &T) -> &isize where T : Sized { + // OK here, because T : Sized is in scope. + unsafe { transmute(x) } + } + + fn n(x: &T) -> &isize { + // Not OK here, because T : Sized is not in scope. + unsafe { transmute(x) } //~ ERROR cannot transmute between types of different sizes + } +} + +fn main() { } -- cgit v1.2.3