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msgproto: Support default values in get_constant() calls

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2018-01-29 10:10:27 -05:00
parent 6eefbe5e30
commit a67306c76b
2 changed files with 11 additions and 7 deletions
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14
klippy/msgproto.py
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@ -324,12 +324,16 @@ class MessageParser:
except Exception as e:
logging.exception("process_identify error")
raise error("Error during identify: %s" % (str(e),))
def get_constant(self, name):
try:
return self.config[name]
except KeyError:
class sentinel: pass
def get_constant(self, name, default=sentinel):
if name not in self.config:
if default is not self.sentinel:
return default
raise error("Firmware constant '%s' not found" % (name,))
def get_constant_float(self, name):
return self.config[name]
def get_constant_float(self, name, default=sentinel):
if name not in self.config and default is not self.sentinel:
return default
try:
return float(self.config[name])
except ValueError: