Comment by amelius

Offtopic. Does anybody know of a practical imperative language in which promises are implicit? Often, when writing software, it happens that deeply nested functions suddenly have to return a promise instead of a direct value, and this forces the programmer to rewrite all the callers of that function into dealing with promises, which of course sucks. So it would be better if the programming language would do that rewriting instead (under the hood), so to speak.