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Simplify a = a = b -> a = b

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Sei Lisa 2017-09-22 16:14:50 +02:00
parent bdd42199eb
commit 08c69eee0f
1 changed files with 8 additions and 7 deletions
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15
lslopt/lslfoldconst.py
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@ -1053,13 +1053,14 @@ class foldconst(object):
# We have a regular assignment either way now. Simplify the RHS.
self.FoldTree(node['ch'], 1)
if child[0]['nt'] == child[1]['nt'] == 'IDENT' \
and child[1]['name'] == child[0]['name'] \
and child[1]['scope'] == child[0]['scope'] \
or child[0]['nt'] == child[1]['nt'] == 'FLD' \
and child[1]['ch'][0]['name'] == child[0]['ch'][0]['name'] \
and child[1]['ch'][0]['scope'] == child[0]['ch'][0]['scope'] \
and child[1]['fld'] == child[0]['fld']:
chkequal = child[1]['ch'][0] if child[1]['nt'] == '=' else child[1]
if child[0]['nt'] == chkequal['nt'] == 'IDENT' \
and chkequal['name'] == child[0]['name'] \
and chkequal['scope'] == child[0]['scope'] \
or child[0]['nt'] == chkequal['nt'] == 'FLD' \
and chkequal['ch'][0]['name'] == child[0]['ch'][0]['name'] \
and chkequal['ch'][0]['scope'] == child[0]['ch'][0]['scope'] \
and chkequal['fld'] == child[0]['fld']:
parent[index] = child[1]
return