Delphi and Eiffel compilers don't do anywhere near the same level of optimization as LLVM does.
And are you sure GCC's Ada has better compile times? My sense is that so few people use Ada at scale that we don't really know.
And are you sure GCC's Ada has better compile times? My sense is that so few people use Ada at scale that we don't really know.
Additionally, it is not like every C++ library is full of meta-programming templates.
Finally, there are other languages with library "metadata" and generic data types, which can easily beat Rust compile times like Delphi, Eiffel and Ada.