def pyF1GetWait(exprNd):
''' extract a wait from Expr node - adds node to model, tags ast node as valid, and returns True on match '''
if type(exprNd) is not ast.Expr:
return False
callNd = exprNd.value
if type(callNd) is not ast.Call:
return False
callStr = __class__.getSourceString(callNd)
pat = re.compile('time.sleep\\((\\w+)')
mat = pat.match(callStr)
if mat:
varstr = mat.group(1)
#print("....found wait, var=" + varstr)
intvar = Cm.CfgNumDataType(varstr)
if intvar.isValid(): # TODO allow a var here also
intvar.val *= 1000 # convert time.sleep value to ms
Cm.CfgWaitNode(intvar, exprNd)
exprNd.__cfg_valid__ = True # tag this ast node as translated
return True
return False
def pyF1ToCfgData(pyNd):
''' convert a py node to appropriate config model data type - returns None on no match
form match is checked in following order: int, path w/ read, path only '''
s = __class__.getSourceString(pyNd) # convert py node to a string
data = Cm.CfgNumDataType(s) # try converting to int
if data.isValid():
return data
hstr = __class__.getHierString(s)
if hstr:
path = Cm.CfgPathDataType(hstr) # try converting to path
if path.isValid():
if path.hasCall():
if path.call == '__get__':
path.setField()
return Cm.CfgReadNode(path, pyNd)
if path.call == '__read__':
path.setReg()
return Cm.CfgReadNode(path, pyNd)
print('invalid call in strToCfgDataType path.val=' +
path.val + ', path.call=' + path.call)
return None # invalid call found
else:
return path
return None
