Rust macros are sort of sufficient to do the kind of rewriting mentioned, but it's maybe cheating because you have to annotate the function with the macro which allows the macro to mangle the whole function body.
yeah, i don't think that's valid because it turns a local transformation into a global transformation (sort of local, but only to the entire top-level function, which can be arbitrarily large)
if you're willing to do the global transformation yourself instead of enlisting the computer to do it for you, you don't even need macros at all; you can do that with henry's example:
Comments
Rust macros are sort of sufficient to do the kind of rewriting mentioned, but it's maybe cheating because you have to annotate the function with the macro which allows the macro to mangle the whole function body.
yeah, i don't think that's valid because it turns a local transformation into a global transformation (sort of local, but only to the entire top-level function, which can be arbitrarily large)
if you're willing to do the global transformation yourself instead of enlisting the computer to do it for you, you don't even need macros at all; you can do that with henry's example:
above the function