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Merge pull request onflow#5939 from onflow/bastian/allow-export-of-gl…
…obal-registers Allow export of global registers (owner is empty string)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| package common | ||
|
|
||
| import ( | ||
| "encoding/hex" | ||
| "fmt" | ||
| "strings" | ||
|
|
||
| "github.com/onflow/flow-go/model/flow" | ||
| ) | ||
|
|
||
| func ParseOwners(hexAddresses []string) (map[string]struct{}, error) { | ||
| if len(hexAddresses) == 0 { | ||
| return nil, fmt.Errorf("at least one address must be provided") | ||
| } | ||
|
|
||
| addresses := make(map[string]struct{}, len(hexAddresses)) | ||
| for _, hexAddr := range hexAddresses { | ||
| hexAddr = strings.TrimSpace(hexAddr) | ||
|
|
||
| if len(hexAddr) > 0 { | ||
| addr, err := ParseAddress(hexAddr) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| addresses[string(addr[:])] = struct{}{} | ||
| } else { | ||
| // global registers has empty address | ||
| addresses[""] = struct{}{} | ||
| } | ||
| } | ||
|
|
||
| return addresses, nil | ||
| } | ||
|
|
||
| func ParseAddress(hexAddr string) (flow.Address, error) { | ||
| b, err := hex.DecodeString(hexAddr) | ||
| if err != nil { | ||
| return flow.Address{}, fmt.Errorf( | ||
| "address is not hex encoded %s: %w", | ||
| strings.TrimSpace(hexAddr), | ||
| err, | ||
| ) | ||
| } | ||
|
|
||
| return flow.BytesToAddress(b), nil | ||
| } | ||
|
|
||
| func OwnersToString(owners map[string]struct{}) string { | ||
| var sb strings.Builder | ||
| index := 0 | ||
| for owner := range owners { | ||
| if index > 0 { | ||
| sb.WriteRune(',') | ||
| } | ||
| _, _ = fmt.Fprintf(&sb, "%x", owner) | ||
| index++ | ||
| } | ||
| return sb.String() | ||
| } |
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