Kill reduce(). A coproduction of John Reese, Jacques Frechet, and Alex M.

This commit is contained in:
Guido van Rossum 2006-08-22 00:21:25 +00:00
parent 6cefeb0e81
commit 89da5d7c3d
10 changed files with 25 additions and 144 deletions

View file

@ -106,24 +106,26 @@ class _SimpleBinder:
# _state_subsets gives for each combination of modifiers, or *state*,
# a list of the states which are a subset of it. This list is ordered by the
# number of modifiers is the state - the most specific state comes first.
# XXX rewrite without overusing functional primitives :-)
_states = range(1 << len(_modifiers))
_state_names = [reduce(lambda x, y: x + y,
[_modifiers[i][0]+'-' for i in range(len(_modifiers))
if (1 << i) & s],
"")
_state_names = [''.join(m[0]+'-'
for i, m in enumerate(_modifiers)
if (1 << i) & s)
for s in _states]
_state_subsets = map(lambda i: filter(lambda j: not (j & (~i)), _states),
_states)
_states)
for l in _state_subsets:
l.sort(lambda a, b, nummod = lambda x: len(filter(lambda i: (1<<i) & x,
range(len(_modifiers)))):
nummod(b) - nummod(a))
# _state_codes gives for each state, the portable code to be passed as mc_state
_state_codes = [reduce(lambda x, y: x | y,
[_modifier_masks[i] for i in range(len(_modifiers))
if (1 << i) & s],
0)
for s in _states]
_state_codes = []
for s in _states:
r = 0
for i in range(len(_modifiers)):
if (1 << i) & s:
r |= _modifier_masks[i]
_state_codes.append(r)
class _ComplexBinder:
# This class binds many functions, and only unbinds them when it is deleted.