[erlang-questions] Maps single value access not implemented
Richard A. O'Keefe
Tue Feb 11 03:31:24 CET 2014
There are three different cases:
- I want this field to be replaced. It MUST exist.
- I want this field to be added. It must NOT exist.
- I want this field to have this value and I DON'T CARE
whether it existed before or not.
Both of the first two cases are important for detecting errors.
In the frames proposal, the *operation* was the same in all
cases, as I thought the checks should be delegated to the
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