If you're only ever directly naming the function names in `passFun`, this works:
import std/macros
proc square[T](data: T): T =
return data*data
proc cube[T](data: T): T =
return data*data*data
proc halve[T](data: T): T =
return data / 2
macro passFun(fun, data: untyped): untyped =
assert fun.repr in ["square", "cube"]
result = quote do:
`fun`(`data`)
echo "pass the square function: ", passFun(square, 2.0)
echo "pass the cube function: ", passFun(cube, 2.0)
#echo "pass the error function: ", passFun(halve, 2.0)
Run
