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Provide a nicer exception when an unknown contract ID is attempted to be

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used.

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mhammond@skippinet.com.au
2002-03-07 12:01:38 +00:00
parent 7d771a234d
commit 597cd48dd8
1 changed files with 8 additions and 1 deletions
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9
extensions/python/xpcom/components.py
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@@ -159,7 +159,14 @@ class _Class:
raise AttributeError, "%s class has no attribute '%s'" % (self.contractid, attr) raise AttributeError, "%s class has no attribute '%s'" % (self.contractid, attr)
def createInstance(self, iid = None): def createInstance(self, iid = None):
import xpcom.client import xpcom.client
return xpcom.client.Component(self.contractid, _get_good_iid(iid)) try:
return xpcom.client.Component(self.contractid, _get_good_iid(iid))
except xpcom.COMException, details:
import nsError
# Handle "no such component" in a cleaner way for the user.
if details.errno == nsError.NS_ERROR_FACTORY_NOT_REGISTERED:
raise xpcom.COMException(details.errno, "No such component '%s'" % (self.contractid,))
raise # Any other exception reraise.
def getService(self, iid = None): def getService(self, iid = None):
return serviceManager.getServiceByContractID(self.contractid, _get_good_iid(iid)) return serviceManager.getServiceByContractID(self.contractid, _get_good_iid(iid))