Access data inside memory location array

Question

I am trying to parse the following type array in geth to "look inside" and get the info but can not figure out how to do it. txs []*types.Transaction

This type is declared elsewhere in geth as

type Transaction struct {
    data    txdata
    hash    atomic.Value
    size    atomic.Value
    from    atomic.Value
}

and I am trying to access the data using the following loop but I can't seem to access any of these values.

    for _, tx := range *txs {
        fmt.Println(fmt.Sprintf("transactions in this block - hash: %s and data: ", tx.hash))
    }

Can anyone point me in the right direction as to how I can access the data in memory locations that is an array

See the docs with examples: [`atomic.Value`](https://golang.org/pkg/sync/atomic/#Value) only has 2 methods. — JimB, May 31 '18 at 12:26
Take The Tour of Go. The given declartion of txs doesn't match how you range over it. — Volker, May 31 '18 at 12:27
Im new to go and have take the tour of go but still dont understand how to parse this — Kravitz, May 31 '18 at 12:30
Why are you trying to access unexported values? You should not do this. There's a reason they are unexported. — Jonathan Hall, May 31 '18 at 12:37

score 1 · Accepted Answer · answered May 31 '18 at 14:47

*types.Transaction has accessor methods:

func (tx *Transaction) Hash() common.Hash
func (tx *Transaction) Data() []byte
func (tx *Transaction) Nonce() uint64
func (tx *Transaction) To() *common.Address

(and many more)

Read the package documentation and learn Go. Lowercase field names are unexported (private).

Access data inside memory location array

1 Answers1