[Framework Add] predefine manifest (neo-project#903)

* predefine manifest

* one attribute per file

* remove empty line

* Update tests/Neo.SmartContract.Framework.UnitTests/ManifestAttributeTest.cs

* Update src/Neo.SmartContract.Framework/Attributes/ManifestExtraAttribute.cs

* Update src/Neo.SmartContract.Framework/Attributes/ManifestExtraAttribute.cs

* Update src/Neo.Compiler.CSharp/CompilationContext.cs

---------

Co-authored-by: Shargon <shargon@gmail.com>

Author: Jim8y

src/Neo.Compiler.CSharp/CompilationContext.cs

@@ -426,31 +426,37 @@ private void ProcessClass(SemanticModel model, INamedTypeSymbol symbol)
             bool isSmartContract = isPublic && !isAbstract && isContractType;
             if (isSmartContract)
             {
-                if (scTypeFound) throw new CompilationException(DiagnosticId.MultiplyContracts, $"Only one smart contract is allowed.");
+                if (scTypeFound) throw new CompilationException(DiagnosticId.MultiplyContracts, "Only one smart contract is allowed.");
                 scTypeFound = true;
                 foreach (var attribute in symbol.GetAttributesWithInherited())
                 {
+                    if (attribute.AttributeClass!.IsSubclassOf(nameof(ManifestExtraAttribute)))
+                    {
+                        manifestExtra[ManifestExtraAttribute.AttributeType[attribute.AttributeClass!.Name]] = (string)attribute.ConstructorArguments[0].Value!;
+                        continue;
+                    }
+
                     switch (attribute.AttributeClass!.Name)
                     {
                         case nameof(DisplayNameAttribute):
                             displayName = (string)attribute.ConstructorArguments[0].Value!;
                             break;
-                        case nameof(scfx.Neo.SmartContract.Framework.Attributes.ContractSourceCodeAttribute):
+                        case nameof(ContractSourceCodeAttribute):
                             Source = (string)attribute.ConstructorArguments[0].Value!;
                             break;
-                        case nameof(scfx.Neo.SmartContract.Framework.Attributes.ManifestExtraAttribute):
+                        case nameof(ManifestExtraAttribute):
                             manifestExtra[(string)attribute.ConstructorArguments[0].Value!] = (string)attribute.ConstructorArguments[1].Value!;
                             break;
-                        case nameof(scfx.Neo.SmartContract.Framework.Attributes.ContractPermissionAttribute):
+                        case nameof(ContractPermissionAttribute):
                             permissions.Add((string)attribute.ConstructorArguments[0].Value!, attribute.ConstructorArguments[1].Values.Select(p => (string)p.Value!).ToArray());
                             break;
-                        case nameof(scfx.Neo.SmartContract.Framework.Attributes.ContractTrustAttribute):
+                        case nameof(ContractTrustAttribute):
                             string trust = (string)attribute.ConstructorArguments[0].Value!;
                             if (!ValidateContractTrust(trust))
                                 throw new ArgumentException($"The value {trust} is not a valid one for ContractTrust");
                             trusts.Add(trust);
                             break;
-                        case nameof(scfx.Neo.SmartContract.Framework.Attributes.SupportedStandardsAttribute):
+                        case nameof(SupportedStandardsAttribute):
                             supportedStandards.UnionWith(
                                 attribute.ConstructorArguments[0].Values
                                     .Select(p => p.Value)

src/Neo.SmartContract.Framework/Attributes/AuthorAttribute.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace Neo.SmartContract.Framework.Attributes
+{
+    [AttributeUsage(AttributeTargets.Class)]
+    public class AuthorAttribute : ManifestExtraAttribute
+    {
+        public AuthorAttribute(string value) : base(AttributeType[nameof(AuthorAttribute)], value)
+        {
+        }
+    }
+}

src/Neo.SmartContract.Framework/Attributes/DescriptionAttribute.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace Neo.SmartContract.Framework.Attributes
+{
+    [AttributeUsage(AttributeTargets.Class)]
+    public class DescriptionAttribute : ManifestExtraAttribute
+    {
+        public DescriptionAttribute(string value) : base(AttributeType[nameof(DescriptionAttribute)], value)
+        {
+        }
+    }
+}

src/Neo.SmartContract.Framework/Attributes/EmailAttribute.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace Neo.SmartContract.Framework.Attributes
+{
+    [AttributeUsage(AttributeTargets.Class)]
+    public class EmailAttribute : ManifestExtraAttribute
+    {
+        public EmailAttribute(string value) : base(AttributeType[nameof(EmailAttribute)], value)
+        {
+        }
+    }
+}

src/Neo.SmartContract.Framework/Attributes/ManifestExtraAttribute.cs

@@ -1,14 +1,15 @@
 // Copyright (C) 2015-2023 The Neo Project.
-// 
-// The Neo.SmartContract.Framework is free software distributed under the MIT 
-// software license, see the accompanying file LICENSE in the main directory 
-// of the project or http://www.opensource.org/licenses/mit-license.php 
+//
+// The Neo.SmartContract.Framework is free software distributed under the MIT
+// software license, see the accompanying file LICENSE in the main directory
+// of the project or http://www.opensource.org/licenses/mit-license.php
 // for more details.
-// 
+//
 // Redistribution and use in source and binary forms with or without
 // modifications are permitted.
 
 using System;
+using System.Collections.Generic;
 
 namespace Neo.SmartContract.Framework.Attributes
 {
@@ -18,5 +19,13 @@ public class ManifestExtraAttribute : Attribute
         public ManifestExtraAttribute(string key, string value)
         {
         }
+
+        internal static readonly Dictionary<string, string> AttributeType = new Dictionary<string, string>
+        {
+            { nameof(AuthorAttribute), "Author" },
+            { nameof(EmailAttribute), "E-mail" },
+            { nameof(DescriptionAttribute), "Description" },
+            { nameof(VersionAttribute), "Version" },
+        };
     }
 }

src/Neo.SmartContract.Framework/Attributes/VersionAttribute.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace Neo.SmartContract.Framework.Attributes
+{
+    [AttributeUsage(AttributeTargets.Class)]
+    public class VersionAttribute : ManifestExtraAttribute
+    {
+        public VersionAttribute(string value) : base(AttributeType[nameof(VersionAttribute)], value)
+        {
+        }
+    }
+}

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

@@ -0,0 +1,22 @@
+using Neo.SmartContract.Framework.Attributes;
+
+namespace Neo.SmartContract.Framework.UnitTests.TestClasses
+{
+    [Author("core-dev")]
+    [Email("core@neo.org")]
+    [Version("v3.6.3")]
+    [Description("This is a test contract.")]
+    [ManifestExtra("ExtraKey", "ExtraValue")]
+    public class Contract_ManifestAttribute : SmartContract
+    {
+        [NoReentrant]
+        public void reentrantTest(int value)
+        {
+            if (value == 0) return;
+            if (value == 123)
+            {
+                reentrantTest(0);
+            }
+        }
+    }
+}

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

@@ -0,0 +1,28 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace Neo.SmartContract.Framework.UnitTests;
+
+[TestClass]
+public class ManifestAttributeTest
+{
+    [TestMethod]
+    public void TestManifestAttribute()
+    {
+        var testEngine = new TestEngine.TestEngine();
+        testEngine.AddEntryScript(Utils.Extensions.TestContractRoot + "Contract_ManifestAttribute.cs");
+
+        var extra = testEngine.Manifest!.Extra;
+
+        Assert.AreEqual(5, extra.Count);
+        // [Author("core-dev")]
+        // [Email("core@neo.org")]
+        // [Version("v3.6.3")]
+        // [Description("This is a test contract.")]
+        // [ManifestExtra("ExtraKey", "ExtraValue")]
+        Assert.AreEqual("core-dev", extra["Author"]!.GetString());
+        Assert.AreEqual("core@neo.org", extra["E-mail"]!.GetString());
+        Assert.AreEqual("v3.6.3", extra["Version"]!.GetString());
+        Assert.AreEqual("This is a test contract.", extra["Description"]!.GetString());
+        Assert.AreEqual("ExtraValue", extra["ExtraKey"]!.GetString());
+    }
+}