Add Inner Ring code

pkg/morph/client/container/eacl.go

@@ -0,0 +1,53 @@
+package container
+
+import (
+	"github.com/nspcc-dev/neofs-node/pkg/morph/client"
+	"github.com/pkg/errors"
+)
+
+// EACLArgs groups the arguments
+// of get eACL test invoke call.
+type EACLArgs struct {
+	cid []byte // container identifier
+}
+
+// EACLValues groups the stack parameters
+// returned by get eACL test invoke.
+type EACLValues struct {
+	eacl []byte // extended ACL table
+}
+
+// SetCID sets the container identifier
+// in a binary format.
+func (g *EACLArgs) SetCID(v []byte) {
+	g.cid = v
+}
+
+// EACL returns the eACL table
+// in a binary format.
+func (g *EACLValues) EACL() []byte {
+	return g.eacl
+}
+
+// EACL performs the test invoke of get eACL
+// method of NeoFS Container contract.
+func (c *Client) EACL(args EACLArgs) (*EACLValues, error) {
+	prms, err := c.client.TestInvoke(
+		c.eaclMethod,
+		args.cid,
+	)
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not perform test invocation (%s)", c.eaclMethod)
+	} else if ln := len(prms); ln != 1 {
+		return nil, errors.Errorf("unexpected stack item count (%s): %d", c.eaclMethod, ln)
+	}
+
+	eacl, err := client.BytesFromStackParameter(prms[0])
+	if err != nil {
+		return nil, errors.Wrapf(err, "could not get byte array from stack item (%s)", c.eaclMethod)
+	}
+
+	return &EACLValues{
+		eacl: eacl,
+	}, nil
+}