Bug 18859 – Silence class allocator/deallocator deprecation warning if they are marked "deprecated"

To facilitate transition from class allocators/deallocators, it would be nice if it was possible to mark them as deprecated, which would move the deprecation warning from the declaration to any code that uses them. This would be similar to how deprecated unittests allow silently testing deprecated symbols. Example: ////////////// test.d ///////////// class C { new(size_t sz) { return null; } } void fun() { new C; } /////////////////////////////////// Currently, this warns on line 3. /////////////////// test.d /////////////////// class C { deprecated new(size_t sz) { return null; } } void fun() { new C; } ////////////////////////////////////////////// This warns both on line 3 and line 8 (usage). It would be better to just have a warning at line 8.

Commit pushed to master at https://github.com/dlang/dmd https://github.com/dlang/dmd/commit/b6f92b288a005c5334793b318c1bf2ab70152ed4 Fix Issue 18859 - Silence class allocator/deallocator deprecation warning if they are marked "deprecated"