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>
---
 .../clippy/tests/ui/for_loops_over_fallibles.rs    | 72 ++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 src/tools/clippy/tests/ui/for_loops_over_fallibles.rs

(limited to 'src/tools/clippy/tests/ui/for_loops_over_fallibles.rs')

diff --git a/src/tools/clippy/tests/ui/for_loops_over_fallibles.rs b/src/tools/clippy/tests/ui/for_loops_over_fallibles.rs
new file mode 100644
index 000000000..3390111d0
--- /dev/null
+++ b/src/tools/clippy/tests/ui/for_loops_over_fallibles.rs
@@ -0,0 +1,72 @@
+#![warn(clippy::for_loops_over_fallibles)]
+
+fn for_loops_over_fallibles() {
+    let option = Some(1);
+    let mut result = option.ok_or("x not found");
+    let v = vec![0, 1, 2];
+
+    // check over an `Option`
+    for x in option {
+        println!("{}", x);
+    }
+
+    // check over an `Option`
+    for x in option.iter() {
+        println!("{}", x);
+    }
+
+    // check over a `Result`
+    for x in result {
+        println!("{}", x);
+    }
+
+    // check over a `Result`
+    for x in result.iter_mut() {
+        println!("{}", x);
+    }
+
+    // check over a `Result`
+    for x in result.into_iter() {
+        println!("{}", x);
+    }
+
+    for x in option.ok_or("x not found") {
+        println!("{}", x);
+    }
+
+    // make sure LOOP_OVER_NEXT lint takes clippy::precedence when next() is the last call
+    // in the chain
+    for x in v.iter().next() {
+        println!("{}", x);
+    }
+
+    // make sure we lint when next() is not the last call in the chain
+    for x in v.iter().next().and(Some(0)) {
+        println!("{}", x);
+    }
+
+    for x in v.iter().next().ok_or("x not found") {
+        println!("{}", x);
+    }
+
+    // check for false positives
+
+    // for loop false positive
+    for x in v {
+        println!("{}", x);
+    }
+
+    // while let false positive for Option
+    while let Some(x) = option {
+        println!("{}", x);
+        break;
+    }
+
+    // while let false positive for Result
+    while let Ok(x) = result {
+        println!("{}", x);
+        break;
+    }
+}
+
+fn main() {}
-- 
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