Guanqun Lu ea7aeb8409 add mutate api (#695) ...

* runtime-storage: add 'mutate' api

* support mutate for StorageValue

* try adding 'mutate' for map

* dispatch on Option<> type

* add check for prev_some

* consolidate the wrap type

* unify wrap type handling

* add sample for StorageValue

2018-09-09 13:32:15 +02:00

substrate

add mutate api (#695)

2018-09-09 13:32:15 +02:00

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