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fhdl: fix series of if/elif/else

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This commit is contained in:
Sebastien Bourdeauducq 2011-12-17 20:31:42 +01:00
parent 1a845d4553
commit d21e095397
1 changed files with 10 additions and 2 deletions
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12
migen/fhdl/structure.py
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@ -161,13 +161,21 @@ class If:
self.f = StatementList() self.f = StatementList()
def Else(self, *f): def Else(self, *f):
self.f = StatementList(f) _insert_else(self, StatementList(f))
return self return self
def Elif(self, cond, *t): def Elif(self, cond, *t):
self.f = StatementList([If(cond, *t)]) _insert_else(self, StatementList([If(cond, *t)]))
return self return self
def _insert_else(obj, clause):
o = obj
while o.f.l:
assert(len(o.f.l) == 1)
assert(isinstance(o.f.l[0], If))
o = o.f.l[0]
o.f = clause
def _sl(x): def _sl(x):
if isinstance(x, list): if isinstance(x, list):
return StatementList(x) return StatementList(x)