Mac wrote:
> Is there a way to mimic the behaviour of C/C++'s preprocessor for
> macros? The problem: a lot of code like this:
>
> def foo():
> # .... do some stuff
> if debug:
> emit_dbg_obj(DbgObjFoo(a,b,c))
>
> # .... do more stuff
> if debug:
> emit_dbg_obj(DbgObjBar(d,e))
>
> # ... and so on ...
>
> Notes:
>
> * the two-lines of debug conditional tend to really break up the flow
> of the surrounding code
>
> * in C you could wrap them with a macro so you could do
> DEBUG_EMIT(DbgObjFoo(a,b,c)), etc, with the macro only instantiating
> the object and processing it if the debug flag was set. The one-liner
> is MUCH less disruptive visually when reading code
Make emit_dbg_obj() a class to create one-liners:
class Emit_dbg_obj:
debug = True
def __init__(self, algo):
self.algo = algo
def call_if_debug(self):
if self.debug:
return self.algo
def foo2():
# .... do some stuff
Emit_dbg_obj(DbgObjFoo(a,b,c)).call_if_debug()
# .... do more stuff
Emit_dbg_obj(DbgObjFoo(c,d)).call_if_debug()
Ciao,
Kay
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