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Remove UnmarshalRawMessages

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This commit is contained in:
Taylor Gerring 2015-03-18 15:42:57 -04:00
parent 60c43d1952
commit 7cbcd81ddc
2 changed files with 125 additions and 124 deletions
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187
rpc/args.go
View File

@ -8,10 +8,18 @@ import (
"github.com/ethereum/go-ethereum/common"
)
func blockNumber(raw json.RawMessage, number *int64) (err error) {
var str string
if err = json.Unmarshal(raw, &str); err != nil {
return NewDecodeParamError(err.Error())
func blockAge(raw interface{}, number *int64) (err error) {
// Parse as integer
num, ok := raw.(int64)
if ok {
*number = num
return nil
}
// Parse as string/hexstring
str, ok := raw.(string)
if !ok {
return NewDecodeParamError("BlockNumber is not a string")
}
switch str {
@ -22,6 +30,7 @@ func blockNumber(raw json.RawMessage, number *int64) (err error) {
default:
*number = common.String2Big(str).Int64()
}
return nil
}
@ -95,17 +104,43 @@ type NewTxArgs struct {
}
func (args *NewTxArgs) UnmarshalJSON(b []byte) (err error) {
var obj struct{ From, To, Value, Gas, GasPrice, Data string }
if err = UnmarshalRawMessages(b, &obj, &args.BlockNumber); err != nil {
return err
var obj []json.RawMessage
var ext struct{ From, To, Value, Gas, GasPrice, Data string }
// Decode byte slice to array of RawMessages
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
args.From = obj.From
args.To = obj.To
args.Value = common.Big(obj.Value)
args.Gas = common.Big(obj.Gas)
args.GasPrice = common.Big(obj.GasPrice)
args.Data = obj.Data
// Check for sufficient params
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
// Decode 0th RawMessage to temporary struct
if err := json.Unmarshal(obj[0], &ext); err != nil {
return NewDecodeParamError(err.Error())
}
// var ok bool
args.From = ext.From
args.To = ext.To
args.Value = common.String2Big(ext.Value)
args.Gas = common.String2Big(ext.Gas)
args.GasPrice = common.String2Big(ext.GasPrice)
args.Data = ext.Data
// Check for optional BlockNumber param
if len(obj) > 1 {
var raw interface{}
if err = json.Unmarshal(obj[1], &raw); err != nil {
return NewDecodeParamError(err.Error())
}
if err := blockAge(raw, &args.BlockNumber); err != nil {
return err
}
}
return nil
}
@ -116,10 +151,27 @@ type GetStorageArgs struct {
}
func (args *GetStorageArgs) UnmarshalJSON(b []byte) (err error) {
if err = UnmarshalRawMessages(b, &args.Address, &args.BlockNumber); err != nil {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
addstr, ok := obj[0].(string)
if !ok {
return NewDecodeParamError("Address is not a string")
}
args.Address = addstr
if len(obj) > 1 {
if err := blockAge(obj[1], &args.BlockNumber); err != nil {
return err
}
}
return nil
}
@ -137,16 +189,32 @@ type GetStorageAtArgs struct {
}
func (args *GetStorageAtArgs) UnmarshalJSON(b []byte) (err error) {
var obj []string
if err = UnmarshalRawMessages(b, &obj, &args.BlockNumber); err != nil {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 2 {
return NewInsufficientParamsError(len(obj), 2)
}
args.Address = obj[0]
args.Key = obj[1]
addstr, ok := obj[0].(string)
if !ok {
return NewDecodeParamError("Address is not a string")
}
args.Address = addstr
keystr, ok := obj[1].(string)
if !ok {
return NewDecodeParamError("Key is not a string")
}
args.Key = keystr
if len(obj) > 2 {
if err := blockAge(obj[2], &args.BlockNumber); err != nil {
return err
}
}
return nil
}
@ -168,10 +236,27 @@ type GetTxCountArgs struct {
}
func (args *GetTxCountArgs) UnmarshalJSON(b []byte) (err error) {
if err = UnmarshalRawMessages(b, &args.Address, &args.BlockNumber); err != nil {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
addstr, ok := obj[0].(string)
if !ok {
return NewDecodeParamError("Address is not a string")
}
args.Address = addstr
if len(obj) > 1 {
if err := blockAge(obj[1], &args.BlockNumber); err != nil {
return err
}
}
return nil
}
@ -189,8 +274,7 @@ type GetBalanceArgs struct {
func (args *GetBalanceArgs) UnmarshalJSON(b []byte) (err error) {
var obj []interface{}
r := bytes.NewReader(b)
if err := json.NewDecoder(r).Decode(&obj); err != nil {
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
@ -205,17 +289,11 @@ func (args *GetBalanceArgs) UnmarshalJSON(b []byte) (err error) {
args.Address = addstr
if len(obj) > 1 {
if obj[1].(string) == "latest" {
args.BlockNumber = -1
} else {
args.BlockNumber = common.Big(obj[1].(string)).Int64()
if err := blockAge(obj[1], &args.BlockNumber); err != nil {
return err
}
}
// if err = UnmarshalRawMessages(b, &args.Address, &args.BlockNumber); err != nil {
// return NewDecodeParamError(err.Error())
// }
return nil
}
@ -232,10 +310,27 @@ type GetDataArgs struct {
}
func (args *GetDataArgs) UnmarshalJSON(b []byte) (err error) {
if err = UnmarshalRawMessages(b, &args.Address, &args.BlockNumber); err != nil {
var obj []interface{}
if err := json.Unmarshal(b, &obj); err != nil {
return NewDecodeParamError(err.Error())
}
if len(obj) < 1 {
return NewInsufficientParamsError(len(obj), 1)
}
addstr, ok := obj[0].(string)
if !ok {
return NewDecodeParamError("Address is not a string")
}
args.Address = addstr
if len(obj) > 1 {
if err := blockAge(obj[1], &args.BlockNumber); err != nil {
return err
}
}
return nil
}
@ -392,10 +487,6 @@ func (args *FilterOptions) UnmarshalJSON(b []byte) (err error) {
return nil
}
// type FilterChangedArgs struct {
// n int
// }
type DbArgs struct {
Database string
Key string
@ -578,31 +669,3 @@ func (args *WhisperFilterArgs) UnmarshalJSON(b []byte) (err error) {
return nil
}
// func (req *RpcRequest) ToRegisterArgs() (string, error) {
// if len(req.Params) < 1 {
// return "", errArguments
// }
// var args string
// err := json.Unmarshal(req.Params, &args)
// if err != nil {
// return "", err
// }
// return args, nil
// }
// func (req *RpcRequest) ToWatchTxArgs() (string, error) {
// if len(req.Params) < 1 {
// return "", errArguments
// }
// var args string
// err := json.Unmarshal(req.Params, &args)
// if err != nil {
// return "", err
// }
// return args, nil
// }

62
rpc/util.go
View File

@ -17,9 +17,6 @@
package rpc
import (
"encoding/json"
"fmt"
"reflect"
"time"
"github.com/ethereum/go-ethereum/common"
@ -30,65 +27,6 @@ import (
var rpclogger = logger.NewLogger("RPC")
// Unmarshal state is a helper method which has the ability to decode messsages
// that use the `defaultBlock` (https://github.com/ethereum/wiki/wiki/JSON-RPC#the-default-block-parameter)
// For example a `call`: [{to: "0x....", data:"0x..."}, "latest"]. The first argument is the transaction
// message and the second one refers to the block height (or state) to which to apply this `call`.
func UnmarshalRawMessages(b []byte, iface interface{}, number *int64) (err error) {
var data []json.RawMessage
if err = json.Unmarshal(b, &data); err != nil && len(data) == 0 {
return NewDecodeParamError(err.Error())
}
// Hrm... Occurs when no params
if len(data) == 0 {
return NewDecodeParamError("No data")
}
// Number index determines the index in the array for a possible block number
numberIndex := 0
value := reflect.ValueOf(iface)
rvalue := reflect.Indirect(value)
switch rvalue.Kind() {
case reflect.Slice:
// This is a bit of a cheat, but `data` is expected to be larger than 2 if iface is a slice
if number != nil {
numberIndex = len(data) - 1
} else {
numberIndex = len(data)
}
slice := reflect.MakeSlice(rvalue.Type(), numberIndex, numberIndex)
for i, raw := range data[0:numberIndex] {
v := slice.Index(i).Interface()
if err = json.Unmarshal(raw, &v); err != nil {
fmt.Println(err, v)
return err
}
slice.Index(i).Set(reflect.ValueOf(v))
}
reflect.Indirect(rvalue).Set(slice) //value.Set(slice)
case reflect.Struct:
fallthrough
default:
if err = json.Unmarshal(data[0], iface); err != nil {
return NewDecodeParamError(err.Error())
}
numberIndex = 1
}
// <0 index means out of bound for block number
if numberIndex >= 0 && len(data) > numberIndex {
if err = blockNumber(data[numberIndex], number); err != nil {
return NewDecodeParamError(err.Error())
}
}
return nil
}
type Log struct {
Address string `json:"address"`
Topic []string `json:"topic"`