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Use if-else instead of try-except for perf reason

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This commit is contained in:
Siu Kwan Lam 2013-05-30 14:04:08 -05:00
commit 84f1b433de
1 changed files with 6 additions and 6 deletions
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12
llvmpy/capsule.py
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@ -141,9 +141,10 @@ def wrap(cap, owned=False):
cls = cap.get_class() cls = cap.get_class()
addr = cap.pointer addr = cap.pointer
name = cap.name name = cap.name
try: # lookup cached object # lookup cached object
return _cache[cls][addr] if cls in _cache and addr in _cache[cls]:
except KeyError: obj = _cache[cls][addr]
else:
if not owned and cls._has_dtor(): if not owned and cls._has_dtor():
_addr2dtor[(name, addr)] = cls._delete_ _addr2dtor[(name, addr)] = cls._delete_
obj = cap.instantiate() obj = cap.instantiate()
@ -207,11 +208,10 @@ def downcast(obj, cls):
logger.debug("Downcast %s to %s" , fromty, toty) logger.debug("Downcast %s to %s" , fromty, toty)
fname = 'downcast_%s_to_%s' % (fromty, toty) fname = 'downcast_%s_to_%s' % (fromty, toty)
fname = fname.replace('::', '_') fname = fname.replace('::', '_')
try: if not hasattr(_api.downcast, fname):
caster = getattr(_api.downcast, fname)
except AttributeError:
fmt = "Downcast from %s to %s is not supported" fmt = "Downcast from %s to %s is not supported"
raise TypeError(fmt % (fromty, toty)) raise TypeError(fmt % (fromty, toty))
caster = getattr(_api.downcast, fname)
old = unwrap(obj) old = unwrap(obj)
new = caster(old) new = caster(old)
used_to_own = has_ownership(old) used_to_own = has_ownership(old)