Implement IntoIterator for &QHash, &QList, &QMap, &QSet, and &QVector

CHANGELOG.md

@@ -37,6 +37,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added `QEventLoop` to cxx-qt-lib-extras.
 - Add `QScopedMetaObjectConnectionGuard`, which is `QMetaObjectConnectionGuard` with a scoped lifetime. `QMetaObjectConnectionGuard` is now a type alias for `QScopedMetaObjectConnectionGuard<'static>`.
 - Support for setting Qt log message patterns with `q_set_message_pattern` and formatting log messages ith `q_format_log_message`.
+- Implement `IntoIterator` for `&QHash`, `&QList`, `&QMap`, `&QSet`, and `&QVector`.
 
 ### Removed
 

crates/cxx-qt-lib/src/core/qhash/mod.rs

@@ -206,6 +206,19 @@ where
     }
 }
 
+impl<'a, T> IntoIterator for &'a QHash<T>
+where
+    T: QHashPair,
+{
+    type Item = (&'a T::Key, &'a T::Value);
+
+    type IntoIter = Iter<'a, T>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        self.iter()
+    }
+}
+
 /// Trait implementation for a pair in a [`QHash`].
 pub trait QHashPair: Sized {
     type Key;

crates/cxx-qt-lib/src/core/qlist/mod.rs

@@ -313,6 +313,19 @@ where
     }
 }
 
+impl<'a, T> IntoIterator for &'a QList<T>
+where
+    T: QListElement,
+{
+    type Item = &'a T;
+
+    type IntoIter = Iter<'a, T>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        self.iter()
+    }
+}
+
 /// Trait implementation for an element in a [`QList`].
 pub trait QListElement: Sized {
     type TypeId;

crates/cxx-qt-lib/src/core/qmap/mod.rs

@@ -202,6 +202,19 @@ where
     }
 }
 
+impl<'a, T> IntoIterator for &'a QMap<T>
+where
+    T: QMapPair,
+{
+    type Item = (&'a T::Key, &'a T::Value);
+
+    type IntoIter = Iter<'a, T>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        self.iter()
+    }
+}
+
 /// Trait implementation for a pair in a [`QMap`].
 pub trait QMapPair: Sized {
     type Key;

crates/cxx-qt-lib/src/core/qset/mod.rs

@@ -242,6 +242,19 @@ where
     }
 }
 
+impl<'a, T> IntoIterator for &'a QSet<T>
+where
+    T: QSetElement,
+{
+    type Item = &'a T;
+
+    type IntoIter = Iter<'a, T>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        self.iter()
+    }
+}
+
 /// Trait implementation for an element in a [`QSet`].
 pub trait QSetElement: Sized {
     type TypeId;

crates/cxx-qt-lib/src/core/qvector/mod.rs

@@ -312,6 +312,19 @@ where
     }
 }
 
+impl<'a, T> IntoIterator for &'a QVector<T>
+where
+    T: QVectorElement,
+{
+    type Item = &'a T;
+
+    type IntoIter = Iter<'a, T>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        self.iter()
+    }
+}
+
 /// Trait implementation for an element in a [`QVector`].
 pub trait QVectorElement: Sized {
     type TypeId;