From 44a848fa6a583376cb7a62363605e3a519cc1648 Mon Sep 17 00:00:00 2001
From: Roman Khimov <roman@nspcc.ru>
Date: Fri, 5 Feb 2021 16:18:08 +0300
Subject: [PATCH] native: call onNEP11Transfer for NEP-11 transfers

See neo-project/neo#2287.
---
 pkg/core/native/nonfungible.go         | 21 +++++++++++++++++++++
 pkg/smartcontract/manifest/manifest.go |  3 +++
 2 files changed, 24 insertions(+)

diff --git a/pkg/core/native/nonfungible.go b/pkg/core/native/nonfungible.go
index 36826506fd..902287d92a 100644
--- a/pkg/core/native/nonfungible.go
+++ b/pkg/core/native/nonfungible.go
@@ -8,6 +8,7 @@ import (
 
 	"github.com/nspcc-dev/neo-go/pkg/core/dao"
 	"github.com/nspcc-dev/neo-go/pkg/core/interop"
+	"github.com/nspcc-dev/neo-go/pkg/core/interop/contract"
 	"github.com/nspcc-dev/neo-go/pkg/core/interop/runtime"
 	istorage "github.com/nspcc-dev/neo-go/pkg/core/interop/storage"
 	"github.com/nspcc-dev/neo-go/pkg/core/state"
@@ -277,6 +278,26 @@ func (n *nonfungible) postTransfer(ic *interop.Context, from, to *util.Uint160,
 		}),
 	}
 	ic.Notifications = append(ic.Notifications, ne)
+	if to == nil {
+		return
+	}
+	cs, err := ic.GetContract(*to)
+	if err != nil {
+		return
+	}
+
+	fromArg := stackitem.Item(stackitem.Null{})
+	if from != nil {
+		fromArg = stackitem.NewByteArray((*from).BytesBE())
+	}
+	args := []stackitem.Item{
+		fromArg,
+		stackitem.NewBigInteger(intOne),
+		stackitem.NewByteArray(tokenID),
+	}
+	if err := contract.CallFromNative(ic, n.Hash, cs, manifest.MethodOnNEP11Payment, args, false); err != nil {
+		panic(err)
+	}
 }
 
 func (n *nonfungible) burn(ic *interop.Context, tokenID []byte) {
diff --git a/pkg/smartcontract/manifest/manifest.go b/pkg/smartcontract/manifest/manifest.go
index dc9a07640f..b622ab33dc 100644
--- a/pkg/smartcontract/manifest/manifest.go
+++ b/pkg/smartcontract/manifest/manifest.go
@@ -24,6 +24,9 @@ const (
 	// MethodOnNEP17Payment is name of the method which is called when contract receives NEP-17 tokens.
 	MethodOnNEP17Payment = "onNEP17Payment"
 
+	// MethodOnNEP11Payment is the name of the method which is called when contract receives NEP-11 tokens.
+	MethodOnNEP11Payment = "onNEP11Payment"
+
 	// NEP10StandardName represents the name of NEP10 smartcontract standard.
 	NEP10StandardName = "NEP-10"
 	// NEP17StandardName represents the name of NEP17 smartcontract standard.