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Deal with the state change in globals error.

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Sei Lisa 2014-08-01 23:51:24 +02:00
parent 400809671e
commit dce6419b4f
2 changed files with 40 additions and 10 deletions
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25
lslopt/lsloptimizer.py
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@ -3,8 +3,9 @@ import lslfuncs
from lslparse import warning
from lslrenamer import renamer
from lsldeadcode import deadcode
class optimizer(renamer):
class optimizer(renamer, deadcode):
# Default values per type when declaring variables
DefaultValues = {'integer': 0, 'float': 0.0, 'string': u'',
@ -450,20 +451,30 @@ class optimizer(renamer):
for idx in xrange(len(child)):
self.FoldTree(child, idx)
self.FoldStmt(child, idx)
if 'StSw' in child[idx]:
node['StSw'] = True
return
if nt == 'IF':
self.FoldTree(child, 0)
if child[0]['nt'] == 'CONST':
# We can remove one of the branches safely.
# We might be able to remove one of the branches.
if lslfuncs.cond(child[0]['value']):
self.FoldTree(child, 1)
parent[index] = child[1]
self.FoldStmt(child, 1)
# If it has a state switch, the if() must be preserved
# (but the else branch may be removed).
if 'StSw' in child[1]:
if len(child) > 2:
del child[2] # Delete ELSE if present
child[0]['t'] = 'integer'
child[0]['value'] = 1
else:
self.FoldStmt(child, 1)
parent[index] = child[1]
elif len(child) > 2:
self.FoldTree(child, 2)
parent[index] = child[2]
self.FoldStmt(child, 2)
parent[index] = child[2]
else:
# No ELSE branch, replace the statement with an empty one.
parent[index] = {'nt':';', 't':None}
@ -568,6 +579,10 @@ class optimizer(renamer):
lslfuncs.ZERO_ROTATION}]
return
if nt == 'STSW':
node['StSw'] = True
return
if nt in self.ignored_stmts:
return