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Merge pull request #3569 from ixje/applog-invocations
*: add invocations to applicationlog
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| package state | ||
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|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
|
|
||
| "github.com/nspcc-dev/neo-go/pkg/io" | ||
| "github.com/nspcc-dev/neo-go/pkg/util" | ||
| "github.com/nspcc-dev/neo-go/pkg/vm/stackitem" | ||
| ) | ||
|
|
||
| // ContractInvocation contains method call information. | ||
| // The Arguments field will be nil if serialization of the arguments exceeds the predefined limit | ||
| // of [stackitem.MaxSerialized] (for security reasons). In that case Truncated will be set to true. | ||
| type ContractInvocation struct { | ||
| Hash util.Uint160 `json:"contract"` | ||
| Method string `json:"method"` | ||
| // Arguments are the arguments as passed to the `args` parameter of System.Contract.Call | ||
| // for use in the RPC Server and RPC Client. | ||
| Arguments *stackitem.Array `json:"arguments"` | ||
| // argumentsBytes is the serialized arguments used at the interop level. | ||
| argumentsBytes []byte | ||
| ArgumentsCount uint32 `json:"argumentscount"` | ||
| Truncated bool `json:"truncated"` | ||
| } | ||
|
|
||
| // contractInvocationAux is an auxiliary struct for ContractInvocation JSON marshalling. | ||
| type contractInvocationAux struct { | ||
| Hash util.Uint160 `json:"hash"` | ||
| Method string `json:"method"` | ||
| Arguments json.RawMessage `json:"arguments,omitempty"` | ||
| ArgumentsCount uint32 `json:"argumentscount"` | ||
| Truncated bool `json:"truncated"` | ||
| } | ||
|
|
||
| // NewContractInvocation returns a new ContractInvocation. | ||
| func NewContractInvocation(hash util.Uint160, method string, argBytes []byte, argCnt uint32) *ContractInvocation { | ||
| return &ContractInvocation{ | ||
| Hash: hash, | ||
| Method: method, | ||
| argumentsBytes: argBytes, | ||
| ArgumentsCount: argCnt, | ||
| Truncated: argBytes == nil, | ||
| } | ||
| } | ||
|
|
||
| // DecodeBinary implements the Serializable interface. | ||
| func (ci *ContractInvocation) DecodeBinary(r *io.BinReader) { | ||
| ci.Hash.DecodeBinary(r) | ||
| ci.Method = r.ReadString() | ||
| ci.ArgumentsCount = r.ReadU32LE() | ||
| ci.Truncated = r.ReadBool() | ||
| if !ci.Truncated { | ||
| ci.argumentsBytes = r.ReadVarBytes() | ||
| } | ||
| } | ||
|
|
||
| // EncodeBinary implements the Serializable interface. | ||
| func (ci *ContractInvocation) EncodeBinary(w *io.BinWriter) { | ||
| ci.EncodeBinaryWithContext(w, stackitem.NewSerializationContext()) | ||
| } | ||
|
|
||
| // EncodeBinaryWithContext is the same as EncodeBinary, but allows to efficiently reuse | ||
| // stack item serialization context. | ||
| func (ci *ContractInvocation) EncodeBinaryWithContext(w *io.BinWriter, sc *stackitem.SerializationContext) { | ||
| ci.Hash.EncodeBinary(w) | ||
| w.WriteString(ci.Method) | ||
| w.WriteU32LE(ci.ArgumentsCount) | ||
| w.WriteBool(ci.Truncated) | ||
| if !ci.Truncated { | ||
| w.WriteVarBytes(ci.argumentsBytes) | ||
| } | ||
| } | ||
|
|
||
| // MarshalJSON implements the json.Marshaler interface. | ||
| func (ci ContractInvocation) MarshalJSON() ([]byte, error) { | ||
| var item []byte | ||
| if ci.Arguments == nil && ci.argumentsBytes != nil { | ||
| si, err := stackitem.Deserialize(ci.argumentsBytes) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| item, err = stackitem.ToJSONWithTypes(si.(*stackitem.Array)) | ||
| if err != nil { | ||
| item = nil | ||
| } | ||
| } | ||
| return json.Marshal(contractInvocationAux{ | ||
| Hash: ci.Hash, | ||
| Method: ci.Method, | ||
| Arguments: item, | ||
| ArgumentsCount: ci.ArgumentsCount, | ||
| Truncated: ci.Truncated, | ||
| }) | ||
| } | ||
|
|
||
| // UnmarshalJSON implements the json.Unmarshaler interface. | ||
| func (ci *ContractInvocation) UnmarshalJSON(data []byte) error { | ||
| aux := new(contractInvocationAux) | ||
| if err := json.Unmarshal(data, aux); err != nil { | ||
| return err | ||
| } | ||
| var args *stackitem.Array | ||
| if aux.Arguments != nil { | ||
| arguments, err := stackitem.FromJSONWithTypes(aux.Arguments) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if t := arguments.Type(); t != stackitem.ArrayT { | ||
| return fmt.Errorf("failed to convert invocation state of type %s to array", t.String()) | ||
| } | ||
| args = arguments.(*stackitem.Array) | ||
| } | ||
| ci.Method = aux.Method | ||
| ci.Hash = aux.Hash | ||
| ci.ArgumentsCount = aux.ArgumentsCount | ||
| ci.Truncated = aux.Truncated | ||
| ci.Arguments = args | ||
| return nil | ||
| } |
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