Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 40 insertions, 0 deletions

diff --git a/intl/components/src/ScopedICUObject.h b/intl/components/src/ScopedICUObject.h
new file mode 100644
index 0000000000..1aa79245dc
--- /dev/null
+++ b/intl/components/src/ScopedICUObject.h
@@ -0,0 +1,40 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef intl_components_ScopedICUObject_h
+#define intl_components_ScopedICUObject_h
+
+/*
+ * A simple RAII class to assure ICU objects are automatically deallocated at
+ * scope end.  Unfortunately, ICU's C++ API is uniformly unstable, so we can't
+ * use its smart pointers for this.
+ */
+
+namespace mozilla::intl {
+
+template <typename T, void(Delete)(T*)>
+class ScopedICUObject {
+  T* ptr_;
+
+ public:
+  explicit ScopedICUObject(T* ptr) : ptr_(ptr) {}
+
+  ~ScopedICUObject() {
+    if (ptr_) {
+      Delete(ptr_);
+    }
+  }
+
+  // In cases where an object should be deleted on abnormal exits,
+  // but returned to the caller if everything goes well, call forget()
+  // to transfer the object just before returning.
+  T* forget() {
+    T* tmp = ptr_;
+    ptr_ = nullptr;
+    return tmp;
+  }
+};
+
+}  // namespace mozilla::intl
+
+#endif /* intl_components_ScopedICUObject_h */