From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/test/ui/try-trait/bad-interconversion.rs | 48 ++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 src/test/ui/try-trait/bad-interconversion.rs

(limited to 'src/test/ui/try-trait/bad-interconversion.rs')

diff --git a/src/test/ui/try-trait/bad-interconversion.rs b/src/test/ui/try-trait/bad-interconversion.rs
new file mode 100644
index 000000000..385f5510f
--- /dev/null
+++ b/src/test/ui/try-trait/bad-interconversion.rs
@@ -0,0 +1,48 @@
+#![feature(control_flow_enum)]
+
+use std::ops::ControlFlow;
+
+fn result_to_result() -> Result<u64, u8> {
+    Ok(Err(123_i32)?)
+    //~^ ERROR `?` couldn't convert the error to `u8`
+}
+
+fn option_to_result() -> Result<u64, String> {
+    Some(3)?;
+    //~^ ERROR the `?` operator can only be used on `Result`s, not `Option`s, in a function that returns `Result`
+    Ok(10)
+}
+
+fn control_flow_to_result() -> Result<u64, String> {
+    Ok(ControlFlow::Break(123)?)
+    //~^ ERROR the `?` operator can only be used on `Result`s in a function that returns `Result`
+}
+
+fn result_to_option() -> Option<u16> {
+    Some(Err("hello")?)
+    //~^ ERROR the `?` operator can only be used on `Option`s, not `Result`s, in a function that returns `Option`
+}
+
+fn control_flow_to_option() -> Option<u64> {
+    Some(ControlFlow::Break(123)?)
+    //~^ ERROR the `?` operator can only be used on `Option`s in a function that returns `Option`
+}
+
+fn result_to_control_flow() -> ControlFlow<String> {
+    ControlFlow::Continue(Err("hello")?)
+    //~^ ERROR the `?` operator can only be used on `ControlFlow`s in a function that returns `ControlFlow`
+}
+
+fn option_to_control_flow() -> ControlFlow<u64> {
+    Some(3)?;
+    //~^ ERROR the `?` operator can only be used on `ControlFlow`s in a function that returns `ControlFlow`
+    ControlFlow::Break(10)
+}
+
+fn control_flow_to_control_flow() -> ControlFlow<i64> {
+    ControlFlow::Break(4_u8)?;
+    //~^ ERROR the `?` operator in a function that returns `ControlFlow<B, _>` can only be used on other `ControlFlow<B, _>`s
+    ControlFlow::Continue(())
+}
+
+fn main() {}
-- 
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