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/dst/dst-index.rs | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 src/test/ui/dst/dst-index.rs (limited to 'src/test/ui/dst/dst-index.rs') diff --git a/src/test/ui/dst/dst-index.rs b/src/test/ui/dst/dst-index.rs new file mode 100644 index 000000000..2f2c5df46 --- /dev/null +++ b/src/test/ui/dst/dst-index.rs @@ -0,0 +1,37 @@ +// Test that overloaded index expressions with DST result types +// can't be used as rvalues + +use std::ops::Index; +use std::fmt::Debug; + +#[derive(Copy, Clone)] +struct S; + +impl Index for S { + type Output = str; + + fn index(&self, _: usize) -> &str { + "hello" + } +} + +#[derive(Copy, Clone)] +struct T; + +impl Index for T { + type Output = dyn Debug + 'static; + + fn index<'a>(&'a self, idx: usize) -> &'a (dyn Debug + 'static) { + static x: usize = 42; + &x + } +} + +fn main() { + S[0]; + //~^ ERROR cannot move out of index of `S` + //~^^ ERROR E0161 + T[0]; + //~^ ERROR cannot move out of index of `T` + //~^^ ERROR E0161 +} -- cgit v1.2.3