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deployless.go
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deployless.go
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package multicall
import (
"context"
"fmt"
"math/big"
"strings"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/omnes-tech/abi"
)
type CallType uint8
const (
SIMULATION = iota
STATIC_CALL
TRY_STATIC_CALL
TRY_STATIC_CALL2
CODE_LENGTH
BALANCES
ADDRESSES_DATA
)
type CallsWithRequireSuccess struct {
Calls Calls
RequireSuccess bool
}
func deploylessSimulation(calls Calls, rpc string) (Result, error) {
arrayfiedCalls, _, err := calls.ToArray(true, false)
if err != nil {
return Result{}, err
}
_, err = makeDeploylessCall(arrayfiedCalls, false, SIMULATION, rpc, []string{"(address,bytes,uint256)[]"})
if err != nil {
if strings.Contains(err.Error(), "execution reverted") {
encodedRevert, ok := parseRevertData(err)
if ok {
decodedRevert, err := abi.DecodeWithSignature(
"MultiCall__Simulation((bool,bytes,uint256)[])",
encodedRevert,
)
if err != nil {
return Result{}, err
}
decodedRevert = decodedRevert[0].([]any)
for i, result := range decodedRevert {
decodedRevert[i].([]any)[1] = common.Bytes2Hex(result.([]any)[1].([]byte))
}
return Result{
Success: true,
Result: decodedRevert,
}, nil
}
}
return Result{Success: false, Error: err}, err
}
return Result{Success: false, Error: fmt.Errorf("call did not revert")}, nil
}
func deploylessAggregateStatic(calls Calls, rpc string) (Result, error) {
arrayfiedCalls, _, err := calls.ToArray(false, false)
if err != nil {
return Result{}, err
}
rawResponse, err := makeDeploylessCall(arrayfiedCalls, false, STATIC_CALL, rpc, []string{"(address,bytes)[]"})
if err != nil {
return Result{}, err
}
resultArgs, err := abi.Decode([]string{"bytes[]"}, common.Hex2Bytes(rawResponse[2:]))
if err != nil {
return Result{}, err
}
resultArgs = resultArgs[0].([]any)
var result []any
for i, call := range calls {
result_i, err := abi.Decode(call.ReturnTypes, resultArgs[i].([]byte))
if err != nil {
return Result{Success: false, Error: err}, err
}
result = append(result, result_i)
}
return Result{Success: true, Result: result}, nil
}
func deploylessTryAggregateStatic(calls Calls, requireSuccess bool, rpc string) (Result, error) {
arrayfiedCalls, _, err := calls.ToArray(false, false)
if err != nil {
return Result{}, err
}
rawResponse, err := makeDeploylessCall(
arrayfiedCalls, requireSuccess, TRY_STATIC_CALL, rpc, []string{"(address,bytes)[]", "bool"},
)
if err != nil {
return Result{}, err
}
resultArgs, err := abi.Decode([]string{"(bool,bytes)[]"}, common.Hex2Bytes(rawResponse[2:]))
if err != nil {
return Result{}, err
}
resultArgs = resultArgs[0].([]any)
var result []any
for i, call := range calls {
resultArgs[i].([]any)[1], err = abi.Decode(call.ReturnTypes, resultArgs[i].([]any)[1].([]byte))
if err != nil {
return Result{Success: false, Error: err}, err
}
result = append(result, resultArgs[i])
}
return Result{Success: true, Result: result}, nil
}
func deploylessTryAggregateStatic3(calls CallsWithFailure, rpc string) (Result, error) {
arrayfiedCalls, _, err := calls.ToArray(false, false)
if err != nil {
return Result{}, err
}
rawResponse, err := makeDeploylessCall(
arrayfiedCalls, false, TRY_STATIC_CALL2, rpc, []string{"(address,bytes,bool)[]"},
)
if err != nil {
return Result{}, err
}
resultArgs, err := abi.Decode([]string{"(bool,bytes)[]"}, common.Hex2Bytes(rawResponse[2:]))
if err != nil {
return Result{}, err
}
resultArgs = resultArgs[0].([]any)
var result []any
for i, call := range calls {
resultArgs[i].([]any)[1], err = abi.Decode(call.ReturnTypes, resultArgs[i].([]any)[1].([]byte))
if err != nil {
return Result{Success: false, Error: err}, err
}
result = append(result, resultArgs[i])
}
return Result{Success: true, Result: result}, nil
}
func deploylessGetCodeLengths(addresses []*common.Address, rpc string) (Result, error) {
rawResponse, err := makeDeploylessCall(
toAnyArray(addresses), false, CODE_LENGTH, rpc, []string{"address[]"},
)
if err != nil {
return Result{}, err
}
resultArgs, err := abi.Decode([]string{"uint256[]"}, common.Hex2Bytes(rawResponse[2:]))
if err != nil {
return Result{}, err
}
resultArgs = resultArgs[0].([]any)
return Result{Success: true, Result: resultArgs}, nil
}
func deploylessGetBalances(addresses []*common.Address, rpc string) (Result, error) {
rawResponse, err := makeDeploylessCall(
toAnyArray(addresses), false, BALANCES, rpc, []string{"address[]"},
)
if err != nil {
return Result{}, err
}
resultArgs, err := abi.Decode([]string{"uint256[]"}, common.Hex2Bytes(rawResponse[2:]))
if err != nil {
return Result{}, err
}
resultArgs = resultArgs[0].([]any)
return Result{Success: true, Result: resultArgs}, nil
}
func deploylessGetAddressesData(addresses []*common.Address, rpc string) (Result, error) {
rawResponse, err := makeDeploylessCall(
toAnyArray(addresses), false, ADDRESSES_DATA, rpc, []string{"address[]"},
)
if err != nil {
return Result{}, err
}
resultArgs, err := abi.Decode([]string{"uint256[]", "uint256[]"}, common.Hex2Bytes(rawResponse[2:]))
if err != nil {
return Result{}, err
}
var result [][]any
for i := range addresses {
result = append(result, []any{resultArgs[0].([]any)[i], resultArgs[1].([]any)[i]})
}
return Result{Success: true, Result: result}, nil
}
func makeDeploylessCall(
params []any, requireSuccess bool, callType CallType, rpc string, typeStrs []string,
) (string, error) {
client, err := ethclient.Dial(rpc)
if err != nil {
return "", err
}
defer client.Close()
var encoded []byte
if callType == TRY_STATIC_CALL {
encoded, err = abi.Encode(typeStrs, params, requireSuccess)
} else {
encoded, err = abi.Encode(typeStrs, params)
}
if err != nil {
return "", err
}
encodedParams, err := abi.EncodePacked([]string{"uint8", "bytes"}, big.NewInt(int64(callType)), encoded)
if err != nil {
return "", err
}
encodedParamsToDeploy, err := abi.Encode([]string{"bytes"}, encodedParams)
if err != nil {
return "", err
}
data := DEPLOYLESS_MULTICALL_BYTECODE + common.Bytes2Hex(encodedParamsToDeploy)
var rawResponse string
err = client.Client().CallContext(context.Background(), &rawResponse, "eth_call", map[string]interface{}{
"to": nil, // This is a deployless call, so `to` is `nil`
"data": data,
}, "latest")
if err != nil {
return rawResponse, err
}
return rawResponse, nil
}
func toAnyArray(addresses []*common.Address) []any {
var anyUserOps []any
for _, address := range addresses {
anyUserOps = append(anyUserOps, address)
}
return anyUserOps
}