accounts/abi: check log.topics length before access

This commit is contained in:
N 2025-08-27 17:45:00 +08:00
parent 7db6c91254
commit 39035e7943

View file

@ -183,7 +183,7 @@ var (
// Solidity: {{.Original.String}}
func ({{ decapitalise $contract.Type}} *{{$contract.Type}}) Unpack{{.Normalized.Name}}Event(log *types.Log) (*{{$contract.Type}}{{.Normalized.Name}}, error) {
event := "{{.Original.Name}}"
if log.Topics[0] != {{ decapitalise $contract.Type}}.abi.Events[event].ID {
if len(log.Topics) == 0 || log.Topics[0] != {{ decapitalise $contract.Type}}.abi.Events[event].ID {
return nil, errors.New("event signature mismatch")
}
out := new({{$contract.Type}}{{.Normalized.Name}})