alt Hacker NewsThings can still be slow in absolute terms without being as slow as C++. The issues with compiling C++ are incredibly well understood and documented. It is one of the worst languages on earth for compile times. Rust doesn’t share those language level issues, so the expectations are understandably higher.
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const_cast • today at 12:41 AM
Rust shares pretty much every language-level issue C++ has with compile times, no? Monomorphization explosion, turing-complete compile time macros, complex type system.
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But it does share some of those issues. Specifically, while Rust generics aren't as unstructured as C++ templates, the main burden is actually from compiling all those tiny instantiations, and Rust monomorphization has the same exact problem responsible for the bulk of its compile times.