frostfs-node/pkg/morph/client/balance/decimals.go

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package balance
import (
"fmt"
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"github.com/nspcc-dev/neofs-node/pkg/morph/client"
)
// DecimalsArgs groups the arguments
// of decimals test invoke call.
type DecimalsArgs struct {
}
// DecimalsValues groups the stack parameters
// returned by decimals test invoke.
type DecimalsValues struct {
decimals int64 // decimals value
}
// Decimals returns the decimals value.
func (d *DecimalsValues) Decimals() int64 {
return d.decimals
}
// Decimals performs the test invoke of decimals
// method of NeoFS Balance contract.
func (c *Client) Decimals(args DecimalsArgs) (*DecimalsValues, error) {
prms, err := c.client.TestInvoke(
c.decimalsMethod,
)
if err != nil {
return nil, fmt.Errorf("could not perform test invocation (%s): %w", c.decimalsMethod, err)
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} else if ln := len(prms); ln != 1 {
return nil, fmt.Errorf("unexpected stack item count (%s): %d", c.decimalsMethod, ln)
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}
decimals, err := client.IntFromStackItem(prms[0])
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if err != nil {
return nil, fmt.Errorf("could not get integer stack item from stack item (%s): %w", c.decimalsMethod, err)
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}
return &DecimalsValues{
decimals: decimals,
}, nil
}