We have additional logic for getting BaseExecFee policy value. This
logic should be moved to interop context instead of being in Policer,
because Policer is just an interface over Policy contract.
After moving this logic to interop context, we need to use it to define
BaseExecFee instead of (Policer).BaseExecFee. Thus, moving
(*Blockchain).GetPrice to (*Context).GetPrice is necessary.
C# does it this way now:
callFlags = !witness.VerificationScript.IsStandardContract() ? CallFlags.ReadStates : CallFlags.None
So non-standard scripts _always_ have access to state and standards ones just
don't care (their code is known and it doesn't touch state).
But don't change the way we process/store transactions and blocks. Effectively
it's just an interface for smart contracts that replaces old syscalls.
Transaction definition is moved temporarily to runtime package and Block
definition is removed (till we solve #1691 properly).
1. Initialization is performed via `Blockchain` methods.
2. Native Oracle contract updates list of oracle nodes
and in-fly requests in `PostPersist`.
3. RPC uses Oracle module directly.
Fixed8 is already marshalled as a string and stripping quotes from it just
leads to interpreting it as a float with all regular float problems (like
test transaction failing with `txid doesn't match transaction hash`).
Move oracleScript from global context to Oracle itself. We have the hash
already computed by NewContractMD, there is no need to repeat this
calculation.
pkg/core/interop/storage/find.go:19:6: exported type Iterator should have comment or be unexported
pkg/core/interop/storage/find.go:25:1: exported function NewIterator should have comment or be unexported
pkg/core/interop/storage/find.go:33:1: exported method Iterator.Next should have comment or be unexported
pkg/core/interop/storage/find.go:35:3: should replace s.index += 1 with s.index++
pkg/core/interop/storage/find.go:40:1: exported method Iterator.Value should have comment or be unexported
