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otterscan_trace_touch.go
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/
otterscan_trace_touch.go
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package jsonrpc
import (
"bytes"
"github.com/holiman/uint256"
"github.com/nebojsa94/erigon/erigon-lib/common"
"github.com/nebojsa94/erigon/core/vm"
)
type TouchTracer struct {
DefaultTracer
searchAddr common.Address
Found bool
}
func NewTouchTracer(searchAddr common.Address) *TouchTracer {
return &TouchTracer{
searchAddr: searchAddr,
}
}
func (t *TouchTracer) captureStartOrEnter(from, to common.Address) {
if !t.Found && (bytes.Equal(t.searchAddr.Bytes(), from.Bytes()) || bytes.Equal(t.searchAddr.Bytes(), to.Bytes())) {
t.Found = true
}
}
func (t *TouchTracer) CaptureStart(env *vm.EVM, from common.Address, to common.Address, precompile bool, create bool, input []byte, gas uint64, value *uint256.Int, code []byte) {
t.captureStartOrEnter(from, to)
}
func (t *TouchTracer) CaptureEnter(typ vm.OpCode, from common.Address, to common.Address, precompile bool, create bool, input []byte, gas uint64, value *uint256.Int, code []byte) {
t.captureStartOrEnter(from, to)
}