[myhdl-list] AttributeError: '_ConvertFunctionVisitor' object has no attribute 'funcBuf'

[Neal B. <ndb...@gm...>]

Translating to verilog produced the above error.  This is basically the 
code.

def maxval (bits):
    return ~(-1 << (bits-1))

def minval (bits):
    return (-1 << (bits-1))

def sat_rnd (x, bits, outbits):
    y1 = x >> (bits-1)
    y2 = y1 + 1
    y3 = y2 >> 1
    if (y3 > maxval (outbits)):
        return maxval (outbits)
    elif (y3 < minval (outbits)):
        return minval (outbits)
    else:
        return y3
    


def Counter (count, clock, en, n, reset):
    @always (clock.posedge, reset.posedge)
    def cntLogic():
        if reset == 1:
            count.next = 0
        elif en:
            if count == n-1:
                count.next = 0
            else:
                count.next = count + 1

#        print "count:", count
    return cntLogic

def accum (x, result, count, clock, en, n, reset):
    def log2 (x):
        "positive only!"
        cnt = 0
        while (x != 0):
            x >>= 1
            cnt += 1
        return cnt-1

    sumbits = log2 (n) + len (result)
    _sum = Signal (intbv(0)[sumbits:])

    
    @always (clock.posedge, reset.posedge)
    def accum_logic():
        if reset == 1:
            _sum.next = 0
            result.next = 0
        elif en:
            _sum.next = _sum + x
            if count == n-1:
                ##print 'count:', count, 'sum:', _sum
                result.next = sat_rnd (_sum, log2 (n), len (result))
                _sum.next = 0

    return accum_logic

def Decimator (clock, en, x, n, count, result, reset):
    cnt1 = Counter (count, clock, en, n, reset)
    acc1 = accum (x, result, count, clock, en, n, reset)
    return cnt1, acc1

Traceback (most recent call last):
  File "test3.py", line 163, in <module>
    verilog()
  File "test3.py", line 150, in verilog
    toVerilog (Decimator, clock, en, x, n, count, result, reset)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 122, in __call__
    _convertGens(genlist, vfile)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 313, in _convertGens
    compiler.walk(ast, v)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 106, in walk
    walker.preorder(tree, visitor)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 63, in preorder
    self.dispatch(tree, *args) # XXX *args make sense?
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 841, in visitModule
    self.visit(stmt)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 1134, in visitFunction
    self.visit(node.code)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 989, in visitStmt
    self.visit(stmt)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 776, in visitIf
    self.mapToIf(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 823, in mapToIf
    self.visit(suite)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 989, in visitStmt
    self.visit(stmt)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 776, in visitIf
    self.mapToIf(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 823, in mapToIf
    self.visit(suite)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 989, in visitStmt
    self.visit(stmt)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 541, in visitAssign
    self.visit(node.expr)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 646, in visitCallFunc
    compiler.walk(node.ast, v)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 106, in walk
    walker.preorder(tree, visitor)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 63, in preorder
    self.dispatch(tree, *args) # XXX *args make sense?
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 841, in visitModule
    self.visit(stmt)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 1168, in visitFunction
    self.visit(node.code)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 989, in visitStmt
    self.visit(stmt)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 776, in visitIf
    self.mapToIf(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 820, in mapToIf
    self.visit(test)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 656, in visitCompare
    self.visit(code, context)
  File "/usr/lib64/python2.5/compiler/visitor.py", line 57, in dispatch
    return meth(node, *args)
  File "/usr/lib/python2.5/site-packages/myhdl/conversion/_toVerilog.py", 
line 645, in visitCallFunc
    v = Visitor(node.ast, self.funcBuf)
AttributeError: '_ConvertFunctionVisitor' object has no attribute 'funcBuf'