Hello everyone! I'm hand-writing a "stack" located in runtime function "stack"
for some CPU-intensive task. What I wish to achieve is something like:
proc main =
# in my case no need for boundary check
stack = array[10, int]
p = -1
# define some operations like PUSH, POP
PUSH(1)
let v = POP
Run
In C both `PUSH` and `POP` can be easily defined by C macro. But in Nim I'm
struggling to get this syntax work, especially for `POP`. If I use template:
template POP =
stack[p]; dec p
Run
it fails to compile because `stack[p]` is regarded as a statement (if I
understand correctly) and its return value has to be discarded.
I finally come up with the inline proc workaround:
proc POP(stack=stack, p:var int = p):int {. inline .} =
result = stack[p]
dec p
Run
which I think isn't some really nice code. So my question is, is there a way to
achieve the "mechanical substitution" like C macro in Nim? Or are there better
solutions for my problem here? Thank you in advance!
