otterscan/cmd/otter/commands/otterscan_trace_operations.go

61 lines
1.6 KiB
Go

package commands
import (
"context"
"math/big"
"github.com/ledgerwatch/erigon/common"
"github.com/ledgerwatch/erigon/common/hexutil"
"github.com/ledgerwatch/erigon/core/vm"
)
type OperationType int
const (
OP_TRANSFER OperationType = 0
OP_SELF_DESTRUCT OperationType = 1
OP_CREATE OperationType = 2
OP_CREATE2 OperationType = 3
)
type InternalOperation struct {
Type OperationType `json:"type"`
From common.Address `json:"from"`
To common.Address `json:"to"`
Value *hexutil.Big `json:"value"`
}
type OperationsTracer struct {
DefaultTracer
ctx context.Context
Results []*InternalOperation
}
func NewOperationsTracer(ctx context.Context) *OperationsTracer {
return &OperationsTracer{
ctx: ctx,
Results: make([]*InternalOperation, 0),
}
}
func (t *OperationsTracer) CaptureStart(env *vm.EVM, depth int, from common.Address, to common.Address, precompile bool, create bool, calltype vm.CallType, input []byte, gas uint64, value *big.Int, code []byte) {
if depth == 0 {
return
}
if calltype == vm.CALLT && value.Uint64() != 0 {
t.Results = append(t.Results, &InternalOperation{OP_TRANSFER, from, to, (*hexutil.Big)(value)})
return
}
if calltype == vm.CREATET {
t.Results = append(t.Results, &InternalOperation{OP_CREATE, from, to, (*hexutil.Big)(value)})
}
if calltype == vm.CREATE2T {
t.Results = append(t.Results, &InternalOperation{OP_CREATE2, from, to, (*hexutil.Big)(value)})
}
}
func (l *OperationsTracer) CaptureSelfDestruct(from common.Address, to common.Address, value *big.Int) {
l.Results = append(l.Results, &InternalOperation{OP_SELF_DESTRUCT, from, to, (*hexutil.Big)(value)})
}