I don't think comparing zig's comptime with rust macros is actually that apt of a comparison. I tend to think of rust macros as syntactic sugar. Zig's comptime permeates the language thoroughly and in fundamental (and IMHO very pragmatic) ways. Top level const expressions are automatically comptime, modules are comptime structs, static polymorphism is used all over the stdlib (e.g. std.mem.eql), heck std.debug.print is written without special compiler tricks thanks to how cleanly you can use comptime in zig.
I think the idea that zig is a very sharp knife is true, but the overlap of footguns and comptime is not as big as one would think (@fieldParentPtr mistakes comes to mind, but that's sort of about it)
I think the idea that zig is a very sharp knife is true, but the overlap of footguns and comptime is not as big as one would think (@fieldParentPtr mistakes comes to mind, but that's sort of about it)