Add Inner Ring code

pkg/morph/event/parser.go

@@ -0,0 +1,53 @@
+package event
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/smartcontract"
+	"github.com/pkg/errors"
+)
+
+// Parser is a function that constructs Event
+// from the StackItem list.
+type Parser func([]smartcontract.Parameter) (Event, error)
+
+// ParserInfo is a structure that groups
+// the parameters of particular contract
+// notification event parser.
+type ParserInfo struct {
+	scriptHashWithType
+
+	p Parser
+}
+
+type wrongPrmNumber struct {
+	exp, act int
+}
+
+// WrongNumberOfParameters returns an error about wrong number of smart contract parameters.
+func WrongNumberOfParameters(exp, act int) error {
+	return &wrongPrmNumber{
+		exp: exp,
+		act: act,
+	}
+}
+
+func (s wrongPrmNumber) Error() string {
+	return errors.Errorf("wrong parameter count: expected %d, has %d", s.exp, s.act).Error()
+}
+
+// SetParser is an event parser setter.
+func (s *ParserInfo) SetParser(v Parser) {
+	s.p = v
+}
+
+func (s ParserInfo) parser() Parser {
+	return s.p
+}
+
+// SetType is an event type setter.
+func (s *ParserInfo) SetType(v Type) {
+	s.typ = v
+}
+
+func (s ParserInfo) getType() Type {
+	return s.typ
+}