openstack/heat
Code Issues Proposed changes

Merge "Resolve Macros when copying templates"

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Jenkins 2017-07-05 03:08:58 +00:00 committed by Gerrit Code Review
commit ad396377fd
1 changed files with 14 additions and 0 deletions
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14
heat/engine/function.py
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@ -188,6 +188,20 @@ class Macro(Function):
"""
return dep_attrs(self.parsed, resource_name)
def __reduce__(self):
"""Return a representation of the macro result suitable for pickling.
This allows the copy module (which works by pickling and then
unpickling objects) to copy a template. Functions in the copy will
return to their original (JSON) form (i.e. a single-element map).
Unlike other functions, macros are *not* preserved during a copy. The
the processed (but unparsed) output is returned in their place.
"""
if isinstance(self.parsed, Function):
return self.parsed.__reduce__()
return type(self.parsed), (self.parsed,)
def _repr_result(self):
return repr(self.parsed)