From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/specialization/issue-52050.rs | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 tests/ui/specialization/issue-52050.rs (limited to 'tests/ui/specialization/issue-52050.rs') diff --git a/tests/ui/specialization/issue-52050.rs b/tests/ui/specialization/issue-52050.rs new file mode 100644 index 000000000..804658702 --- /dev/null +++ b/tests/ui/specialization/issue-52050.rs @@ -0,0 +1,32 @@ +#![feature(specialization)] //~ WARN the feature `specialization` is incomplete + +// Regression test for #52050: when inserting the blanket impl `I` +// into the tree, we had to replace the child node for `Foo`, which +// led to the structure of the tree being messed up. + +use std::iter::Iterator; + +trait IntoPyDictPointer { } + +struct Foo { } + +impl Iterator for Foo { + type Item = (); + fn next(&mut self) -> Option<()> { + None + } +} + +impl IntoPyDictPointer for Foo { } + +impl IntoPyDictPointer for I +where + I: Iterator, +{ +} + +impl IntoPyDictPointer for () //~ ERROR conflicting implementations +{ +} + +fn main() { } -- cgit v1.2.3