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cadenceValues.go
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cadenceValues.go
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package utils
import (
"github.com/onflow/cadence"
"github.com/onflow/cadence/runtime/common"
"github.com/onflow/flow-go/model/flow"
)
func FlowAddressSliceToCadenceAddressSlice(addresses []flow.Address) []common.Address {
adds := make([]common.Address, 0, len(addresses))
for _, a := range addresses {
adds = append(adds, common.Address(a))
}
return adds
}
func AddressSliceToCadenceValue(addresses []common.Address) cadence.Value {
adds := make([]cadence.Value, 0, len(addresses))
for _, a := range addresses {
adds = append(adds, cadence.NewAddress(a))
}
return cadence.NewArray(adds)
}
func CadenceValueToAddressSlice(value cadence.Value) (addresses []common.Address, ok bool) {
// cast to array
v, ok := value.(cadence.Array)
if !ok {
return nil, false
}
// parse addresses
for _, value := range v.Values {
a, ok := value.(cadence.Address)
if !ok {
return nil, false
}
addresses = append(addresses, common.Address(a))
}
return addresses, true
}
// CadenceValueToWeights converts a cadence value to a map of weights used for metering
func CadenceValueToWeights(value cadence.Value) (map[uint]uint64, bool) {
result := make(map[uint]uint64)
dict, ok := value.(cadence.Dictionary)
if !ok {
return nil, false
}
for _, p := range dict.Pairs {
key, ok := p.Key.(cadence.UInt64)
if !ok {
return nil, false
}
value, ok := p.Value.(cadence.UInt64)
if !ok {
return nil, false
}
result[uint(key.ToGoValue().(uint64))] = uint64(value)
}
return result, true
}