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Handle list+list more sanely.

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Sei Lisa 2017-11-04 22:49:02 +01:00
parent 0b1ad7c110
commit a4b3c1eadd
1 changed files with 37 additions and 20 deletions
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57
lslopt/lslfoldconst.py
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@ -893,35 +893,52 @@ class foldconst(object):
if ltype == rtype == 'list':
if (rnt == 'LIST' and len(rval['ch']) == 1
or rnt == 'CAST'):
or rnt == 'CONST' and len(rval['value']) == 1
or rnt == 'CAST'
):
# list + (list)element -> list + element
# list + [element] -> list + element
while True:
# Remove nested typecasts: (list)(list)x -> x
while rnt == 'CAST' and rval['t'] == 'list':
# Remove nested typecasts
# e.g. list + (list)((list)x) -> list + x
rval = parent[index]['ch'][1] = rval['ch'][0]
if rval['nt'] != 'CAST' or rval['t'] != 'list':
break
return
if rnt == 'CONST' and len(rval['value']) == 1:
# list + [constant] -> list + constant
rval['value'] = rval['value'][0]
rtype = rval['t'] = lslcommon.PythonType2LSL[type(rval['value'])]
rnt = rval['nt']
if (rnt == 'LIST' and len(rval['ch']) == 1
and rval['ch'][0]['t'] != 'list'):
# Finally, remove [] wrapper if it's not
# list within list
rval = child[1] = rval['ch'][0]
rnt = rval['nt']
if rnt == 'CONST' and len(rval['value']) == 1:
# list + [constant] -> list + constant
rval['value'] = rval['value'][0]
rtype = rval['t'] = lslcommon.PythonType2LSL[
type(rval['value'])]
return
if (lnt == 'LIST' and len(lval['ch']) == 1
or lnt == 'CAST'):
or lnt == 'CONST' and len(lval['value']) == 1
or lnt == 'CAST'
):
# (list)element + list -> element + list
# [element] + list -> element + list
while True:
# Remove nested typecasts: (list)(list)x -> x
# (list)[element] + list -> element + list
while lnt == 'CAST' and lval['t'] == 'list':
# Remove nested typecasts
# e.g. (list)((list)x) + list -> x + list
lval = parent[index]['ch'][0] = lval['ch'][0]
if lval['nt'] != 'CAST' or lval['t'] != 'list':
break
return
if lnt == 'CONST' and len(lval['value']) == 1:
# [constant] + list -> constant + list
lval['value'] = lval['value'][0]
ltype = lval['t'] = lslcommon.PythonType2LSL[type(lval['value'])]
lnt = lval['nt']
if (lnt == 'LIST' and len(lval['ch']) == 1
and lval['ch'][0]['t'] != 'list'):
# Finally, remove [] wrapper if it's not
# list within list
lval = child[0] = lval['ch'][0]
lnt = lval['nt']
if lnt == 'CONST' and len(lval['value']) == 1:
# [constant] + list -> constant + list
lval['value'] = lval['value'][0]
ltype = lval['t'] = lslcommon.PythonType2LSL[
type(lval['value'])]
return
return