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On second thought, disable explicitcast for list+nonlist and nonlist+list entirely, as they are not the same as list+(list)nonlist and (list)nonlist+list anyway.

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Sei Lisa 2015-09-04 06:26:01 +02:00
parent d8649deebd
commit 0122d6ed70
1 changed files with 4 additions and 9 deletions
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13
lslopt/lslparse.py
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@ -1125,18 +1125,13 @@ list lazy_list_set(list L, integer i, list v)
if ltype == rtype == 'key':
# key + key is the only disallowed combo of equals
raise EParseTypeMismatch(self)
if self.explicitcast:
if ltype == 'list' != rtype:
rexpr = {'nt':'CAST', 't':ltype, 'ch':[rexpr]}
elif rtype == 'list' != ltype:
term = {'nt':'CAST', 't':rtype, 'ch':[term]}
# Note that although list + nonlist is semantically the
# same as list + (list)nonlist, and similarly for
# nonlist + list, they don't compile to the same thing,
# so we don't act on self.explicitcast in this case.
if rtype == 'list':
ltype = rtype
term = {'nt':op, 't':ltype, 'ch':[term, rexpr]}
# Note that although list + nonlist is semantically the same as
# list + (list)nonlist and same goes for nonlist + list, they
# don't compile to the same thing, but the optimizer should deal
# with typecast removal anyway.
elif self.allowkeyconcat and op == '+' \
and ltype in ('key', 'string') and rtype in ('key', 'string'):
# Allow string+key addition (but add explicit cast)