Make store
take a list of (key, value) to "store many"
#1097
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Closes #1096
Update
store
so that it takes a list of tuples, and create a newstore_single
to match the old behavior.The cache is not passed by mutable reference in order to avoid the runtime cost of borrowing it mutably many times.
The only pitfall is that because the function signature of
store
is nowfn store<V: BorshSerialize, Pairs: IntoIterator<Item = (K, &V)>
, theV
has to be the same consistent type across the list.