[Framework Add] implement payable (#990)

* implement payable

* adopt NEP25 and NEP26

* Apply suggestions from code review

* Fix nep11

* Remove safe check

* fix onnep11payable

* use NEP 26 and NEP 27

---------

Co-authored-by: Vitor Nazário Coelho <[email protected]>
Co-authored-by: Shargon <[email protected]>

Author: 3 people

src/Neo.Compiler.CSharp/ContractManifestExtension.cs

@@ -163,6 +163,45 @@ private static void CheckNep17Compliant(this ContractManifest manifest)
             }
         }
 
+        private static void CheckNep11PayableCompliant(this ContractManifest manifest)
+        {
+            try
+            {
+                var onNEP11PaymentMethod = manifest.Abi.GetMethod("onNEP11Payment", 4);
+                var onNEP11PaymentValid = onNEP11PaymentMethod is { ReturnType: ContractParameterType.Void } &&
+                                          onNEP11PaymentMethod.Parameters[0].Type == ContractParameterType.Hash160 &&
+                                          onNEP11PaymentMethod.Parameters[1].Type == ContractParameterType.Integer &&
+                                          onNEP11PaymentMethod.Parameters[2].Type == ContractParameterType.String &&
+                                          onNEP11PaymentMethod.Parameters[3].Type == ContractParameterType.Any;
+
+                if (!onNEP11PaymentValid) throw new CompilationException(DiagnosticId.IncorrectNEPStandard,
+                    $"Incomplete NEP standard {NepStandard.Nep11Payable.ToStandard()} implementation: onNEP11Payment");
+            }
+            catch (Exception ex) when (ex is not CompilationException)
+            {
+                throw new CompilationException(DiagnosticId.IncorrectNEPStandard, $"Incomplete NEP standard {NepStandard.Nep11Payable.ToStandard()} implementation: Unidentified issue.");
+            }
+        }
+
+        private static void CheckNep17PayableCompliant(this ContractManifest manifest)
+        {
+            try
+            {
+                var onNEP17PaymentMethod = manifest.Abi.GetMethod("onNEP17Payment", 3);
+                var onNEP17PaymentValid = onNEP17PaymentMethod is { ReturnType: ContractParameterType.Void } &&
+                                          onNEP17PaymentMethod.Parameters[0].Type == ContractParameterType.Hash160 &&
+                                          onNEP17PaymentMethod.Parameters[1].Type == ContractParameterType.Integer &&
+                                          onNEP17PaymentMethod.Parameters[2].Type == ContractParameterType.Any;
+
+                if (!onNEP17PaymentValid) throw new CompilationException(DiagnosticId.IncorrectNEPStandard,
+                    $"Incomplete NEP standard {NepStandard.Nep17Payable.ToStandard()} implementation: onNEP17Payment");
+            }
+            catch (Exception ex) when (ex is not CompilationException)
+            {
+                throw new CompilationException(DiagnosticId.IncorrectNEPStandard, $"Incomplete NEP standard {NepStandard.Nep17Payable.ToStandard()} implementation: Unidentified issue.");
+            }
+        }
+
         internal static ContractManifest CheckStandards(this ContractManifest manifest)
         {
             if (manifest.SupportedStandards.Contains(NepStandard.Nep11.ToStandard()))
@@ -175,6 +214,16 @@ internal static ContractManifest CheckStandards(this ContractManifest manifest)
                 manifest.CheckNep17Compliant();
             }
 
+            if (manifest.SupportedStandards.Contains(NepStandard.Nep11Payable.ToStandard()))
+            {
+                manifest.CheckNep11PayableCompliant();
+            }
+
+            if (manifest.SupportedStandards.Contains(NepStandard.Nep17Payable.ToStandard()))
+            {
+                manifest.CheckNep17PayableCompliant();
+            }
+
             return manifest;
         }
     }

src/Neo.SmartContract.Framework/Interfaces/INEP11Payable.cs

@@ -26,6 +26,7 @@ public interface INep11Payable
     /// </summary>
     /// <param name="from">The address of the payer</param>
     /// <param name="amount">The amount of token to be transferred</param>
+    /// <param name="tokenId">The token id to be transferred</param>
     /// <param name="data">Additional payment description data</param>
     /// <remarks>
     /// This interface method is defined as non-static,
@@ -34,5 +35,5 @@ public interface INep11Payable
     /// Both static and non-static methods of smart contract interface works,
     /// they differs on how you process static field.
     /// </remarks>
-    public void OnNEP11Payment(UInt160 from, BigInteger amount, object? data = null);
+    public void OnNEP11Payment(UInt160 from, BigInteger amount, string tokenId, object? data = null);
 }

src/Neo.SmartContract.Framework/NEPStandard.cs

@@ -19,6 +19,18 @@ public enum NepStandard
         // The NEP-17 standard is used for fungible tokens.
         // Defined at https://github.com/neo-project/proposals/blob/master/nep-17.mediawiki
         Nep17,
+        // Smart contract transfer callback for non-fungible tokens (NFTs).
+        // This is an extension standard of NEP-11.
+        // Defined at https://github.com/neo-project/proposals/pull/169/files#diff-2b5f7c12a23f7dbe4cb46bbf4be6936882f8e0f0b3a4db9d8c58eb294b02e6ed
+        Nep26,
+        // This is the nick name of NEP-25.
+        Nep11Payable,
+        // Smart contract transfer callback for fungible tokens.
+        // This is an extension standard of NEP-17.
+        // Defined at https://github.com/neo-project/proposals/pull/169/files#diff-70768f307c9aa84f8c94e790495a76d47fffeca2331444592ebba6f13b1e6460
+        Nep27,
+        // This is the nick name of NEP-26.
+        Nep17Payable,
         // This NEP defines a global standard to get royalty payment information for Non-Fungible Tokens (NFTs)
         // in order to enable support for royalty payments across all NFT marketplaces in the NEO Smart Economy.
         // This NEP requires NEP-11.
@@ -35,6 +47,8 @@ public static string ToStandard(this NepStandard standard)
                 NepStandard.Nep11 => "NEP-11",
                 NepStandard.Nep17 => "NEP-17",
                 NepStandard.Nep24 => "NEP-24",
+                NepStandard.Nep11Payable or NepStandard.Nep26 => "NEP-26",
+                NepStandard.Nep17Payable or NepStandard.Nep27 => "NEP-27",
                 _ => standard.ToString()
             };
         }

tests/Neo.SmartContract.Framework.TestContracts/Contract_SupportedStandard11Enum.cs

@@ -14,7 +14,7 @@ public static bool TestStandard()
 
         public override string Symbol { [Safe] get; } = "EXAMPLE";
 
-        public void OnNEP11Payment(UInt160 from, BigInteger amount, object? data = null)
+        public void OnNEP11Payment(UInt160 from, BigInteger amount, string tokenId, object? data = null)
         {
         }
     }

tests/Neo.SmartContract.Framework.TestContracts/Contract_SupportedStandard11Payable.cs

@@ -0,0 +1,20 @@
+using Neo.SmartContract.Framework.Attributes;
+using System.ComponentModel;
+using System.Numerics;
+using Neo.SmartContract.Framework.Interfaces;
+
+namespace Neo.SmartContract.Framework.TestContracts
+{
+    [DisplayName(nameof(Contract_SupportedStandard11Payable))]
+    [ContractDescription("<Description Here>")]
+    [ContractAuthor("<Your Name Or Company Here>", "<Your Public Email Here>")]
+    [ContractVersion("<Version String Here>")]
+    [ContractPermission(Permission.Any, Method.Any)]
+    [SupportedStandards(NepStandard.Nep11Payable)]
+    public class Contract_SupportedStandard11Payable : SmartContract, INep11Payable
+    {
+        public void OnNEP11Payment(UInt160 from, BigInteger amount, string tokenId, object? data = null)
+        {
+        }
+    }
+}

tests/Neo.SmartContract.Framework.TestContracts/Contract_SupportedStandard17Payable.cs

@@ -0,0 +1,20 @@
+using Neo.SmartContract.Framework.Attributes;
+using System.ComponentModel;
+using System.Numerics;
+using Neo.SmartContract.Framework.Interfaces;
+
+namespace Neo.SmartContract.Framework.TestContracts
+{
+    [DisplayName(nameof(Contract_SupportedStandard17Payable))]
+    [ContractDescription("<Description Here>")]
+    [ContractAuthor("<Your Name Or Company Here>", "<Your Public Email Here>")]
+    [ContractVersion("<Version String Here>")]
+    [ContractPermission(Permission.Any, Method.Any)]
+    [SupportedStandards(NepStandard.Nep17Payable)]
+    public class Contract_SupportedStandard17Payable : SmartContract, INep17Payable
+    {
+        public void OnNEP17Payment(UInt160 from, BigInteger amount, object? data = null)
+        {
+        }
+    }
+}

tests/Neo.SmartContract.Framework.UnitTests/SupportedStandardsTest.cs

@@ -23,5 +23,17 @@ public void TestStandardNEP17AttributeEnum()
         {
             CollectionAssert.AreEqual(Contract_SupportedStandard17Enum.Manifest.SupportedStandards, new string[] { "NEP-17" });
         }
+
+        [TestMethod]
+        public void TestStandardNEP11PayableAttribute()
+        {
+            CollectionAssert.AreEqual(Contract_SupportedStandard11Payable.Manifest.SupportedStandards, new string[] { "NEP-26" });
+        }
+
+        [TestMethod]
+        public void TestStandardNEP17PayableAttribute()
+        {
+            CollectionAssert.AreEqual(Contract_SupportedStandard17Payable.Manifest.SupportedStandards, new string[] { "NEP-27" });
+        }
     }
 }

tests/Neo.SmartContract.Framework.UnitTests/TestingArtifacts/Contract_SupportedStandard11Enum.cs

@@ -10,9 +10,9 @@ public abstract class Contract_SupportedStandard11Enum : Neo.SmartContract.Testi
 {
     #region Compiled data
 
-    public static readonly Neo.SmartContract.Manifest.ContractManifest Manifest = Neo.SmartContract.Manifest.ContractManifest.Parse(@"{""name"":""Contract_SupportedStandard11Enum"",""groups"":[],""features"":{},""supportedstandards"":[""NEP-11""],""abi"":{""methods"":[{""name"":""symbol"",""parameters"":[],""returntype"":""String"",""offset"":953,""safe"":true},{""name"":""decimals"",""parameters"":[],""returntype"":""Integer"",""offset"":970,""safe"":true},{""name"":""totalSupply"",""parameters"":[],""returntype"":""Integer"",""offset"":45,""safe"":true},{""name"":""balanceOf"",""parameters"":[{""name"":""owner"",""type"":""Hash160""}],""returntype"":""Integer"",""offset"":71,""safe"":true},{""name"":""ownerOf"",""parameters"":[{""name"":""tokenId"",""type"":""ByteArray""}],""returntype"":""Hash160"",""offset"":267,""safe"":true},{""name"":""properties"",""parameters"":[{""name"":""tokenId"",""type"":""ByteArray""}],""returntype"":""Map"",""offset"":985,""safe"":true},{""name"":""tokens"",""parameters"":[],""returntype"":""InteropInterface"",""offset"":472,""safe"":true},{""name"":""tokensOf"",""parameters"":[{""name"":""owner"",""type"":""Hash160""}],""returntype"":""InteropInterface"",""offset"":502,""safe"":true},{""name"":""transfer"",""parameters"":[{""name"":""to"",""type"":""Hash160""},{""name"":""tokenId"",""type"":""ByteArray""},{""name"":""data"",""type"":""Any""}],""returntype"":""Boolean"",""offset"":595,""safe"":false},{""name"":""testStandard"",""parameters"":[],""returntype"":""Boolean"",""offset"":908,""safe"":false},{""name"":""onNEP11Payment"",""parameters"":[{""name"":""from"",""type"":""Hash160""},{""name"":""amount"",""type"":""Integer""},{""name"":""data"",""type"":""Any""}],""returntype"":""Void"",""offset"":1000,""safe"":false},{""name"":""_initialize"",""parameters"":[],""returntype"":""Void"",""offset"":918,""safe"":false}],""events"":[{""name"":""Transfer"",""parameters"":[{""name"":""from"",""type"":""Hash160""},{""name"":""to"",""type"":""Hash160""},{""name"":""amount"",""type"":""Integer""},{""name"":""tokenId"",""type"":""ByteArray""}]}]},""permissions"":[{""contract"":""0x726cb6e0cd8628a1350a611384688911ab75f51b"",""methods"":[""sha256""]},{""contract"":""0xacce6fd80d44e1796aa0c2c625e9e4e0ce39efc0"",""methods"":[""deserialize"",""serialize""]},{""contract"":""0xfffdc93764dbaddd97c48f252a53ea4643faa3fd"",""methods"":[""getContract""]},{""contract"":""*"",""methods"":[""onNEP11Payment""]}],""trusts"":[],""extra"":{}}");
+    public static readonly Neo.SmartContract.Manifest.ContractManifest Manifest = Neo.SmartContract.Manifest.ContractManifest.Parse(@"{""name"":""Contract_SupportedStandard11Enum"",""groups"":[],""features"":{},""supportedstandards"":[""NEP-11""],""abi"":{""methods"":[{""name"":""symbol"",""parameters"":[],""returntype"":""String"",""offset"":953,""safe"":true},{""name"":""decimals"",""parameters"":[],""returntype"":""Integer"",""offset"":970,""safe"":true},{""name"":""totalSupply"",""parameters"":[],""returntype"":""Integer"",""offset"":45,""safe"":true},{""name"":""balanceOf"",""parameters"":[{""name"":""owner"",""type"":""Hash160""}],""returntype"":""Integer"",""offset"":71,""safe"":true},{""name"":""ownerOf"",""parameters"":[{""name"":""tokenId"",""type"":""ByteArray""}],""returntype"":""Hash160"",""offset"":267,""safe"":true},{""name"":""properties"",""parameters"":[{""name"":""tokenId"",""type"":""ByteArray""}],""returntype"":""Map"",""offset"":985,""safe"":true},{""name"":""tokens"",""parameters"":[],""returntype"":""InteropInterface"",""offset"":472,""safe"":true},{""name"":""tokensOf"",""parameters"":[{""name"":""owner"",""type"":""Hash160""}],""returntype"":""InteropInterface"",""offset"":502,""safe"":true},{""name"":""transfer"",""parameters"":[{""name"":""to"",""type"":""Hash160""},{""name"":""tokenId"",""type"":""ByteArray""},{""name"":""data"",""type"":""Any""}],""returntype"":""Boolean"",""offset"":595,""safe"":false},{""name"":""testStandard"",""parameters"":[],""returntype"":""Boolean"",""offset"":908,""safe"":false},{""name"":""onNEP11Payment"",""parameters"":[{""name"":""from"",""type"":""Hash160""},{""name"":""amount"",""type"":""Integer""},{""name"":""tokenId"",""type"":""String""},{""name"":""data"",""type"":""Any""}],""returntype"":""Void"",""offset"":1000,""safe"":false},{""name"":""_initialize"",""parameters"":[],""returntype"":""Void"",""offset"":918,""safe"":false}],""events"":[{""name"":""Transfer"",""parameters"":[{""name"":""from"",""type"":""Hash160""},{""name"":""to"",""type"":""Hash160""},{""name"":""amount"",""type"":""Integer""},{""name"":""tokenId"",""type"":""ByteArray""}]}]},""permissions"":[{""contract"":""0x726cb6e0cd8628a1350a611384688911ab75f51b"",""methods"":[""sha256""]},{""contract"":""0xacce6fd80d44e1796aa0c2c625e9e4e0ce39efc0"",""methods"":[""deserialize"",""serialize""]},{""contract"":""0xfffdc93764dbaddd97c48f252a53ea4643faa3fd"",""methods"":[""getContract""]},{""contract"":""*"",""methods"":[""onNEP11Payment""]}],""trusts"":[],""extra"":{}}");
 
-    public static readonly Neo.SmartContract.NefFile Nef = Neo.IO.Helper.AsSerializable<Neo.SmartContract.NefFile>(Convert.FromBase64String(@"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"));
+    public static readonly Neo.SmartContract.NefFile Nef = Neo.IO.Helper.AsSerializable<Neo.SmartContract.NefFile>(Convert.FromBase64String(@"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"));
 
     #endregion
 
@@ -83,7 +83,7 @@ public abstract class Contract_SupportedStandard11Enum : Neo.SmartContract.Testi
     /// Unsafe method
     /// </summary>
     [DisplayName("onNEP11Payment")]
-    public abstract void OnNEP11Payment(UInt160? from, BigInteger? amount, object? data = null);
+    public abstract void OnNEP11Payment(UInt160? from, BigInteger? amount, string? tokenId, object? data = null);
 
     /// <summary>
     /// Unsafe method

tests/Neo.SmartContract.Framework.UnitTests/TestingArtifacts/Contract_SupportedStandard11Payable.cs

@@ -0,0 +1,34 @@
+using Neo.Cryptography.ECC;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Numerics;
+
+namespace Neo.SmartContract.Testing;
+
+public abstract class Contract_SupportedStandard11Payable : Neo.SmartContract.Testing.SmartContract
+{
+    #region Compiled data
+
+    public static readonly Neo.SmartContract.Manifest.ContractManifest Manifest = Neo.SmartContract.Manifest.ContractManifest.Parse(@"{""name"":""Contract_SupportedStandard11Payable"",""groups"":[],""features"":{},""supportedstandards"":[""NEP-26""],""abi"":{""methods"":[{""name"":""onNEP11Payment"",""parameters"":[{""name"":""from"",""type"":""Hash160""},{""name"":""amount"",""type"":""Integer""},{""name"":""tokenId"",""type"":""String""},{""name"":""data"",""type"":""Any""}],""returntype"":""Void"",""offset"":15,""safe"":false}],""events"":[]},""permissions"":[{""contract"":""*"",""methods"":""*""}],""trusts"":[],""extra"":{""Description"":""\u003CDescription Here\u003E"",""Author"":""\u003CYour Name Or Company Here\u003E"",""Version"":""\u003CVersion String Here\u003E""}}");
+
+    public static readonly Neo.SmartContract.NefFile Nef = Neo.IO.Helper.AsSerializable<Neo.SmartContract.NefFile>(Convert.FromBase64String(@"TkVGM1Rlc3RpbmdFbmdpbmUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABVXAAVAVwABeDQDQFcAAUDCSjTzIu1tevRy"));
+
+    #endregion
+
+    #region Unsafe methods
+
+    /// <summary>
+    /// Unsafe method
+    /// </summary>
+    [DisplayName("onNEP11Payment")]
+    public abstract void OnNEP11Payment(UInt160? from, BigInteger? amount, string? tokenId, object? data = null);
+
+    #endregion
+
+    #region Constructor for internal use only
+
+    protected Contract_SupportedStandard11Payable(Neo.SmartContract.Testing.SmartContractInitialize initialize) : base(initialize) { }
+
+    #endregion
+}