From 3a3a94b61024b6cad8d507273a253d0dd40db7ee Mon Sep 17 00:00:00 2001
From: Wojciech Figat <wojtek@figat.pl>
Date: Tue, 18 Oct 2022 15:02:49 +0200
Subject: [PATCH] Add Mono.Cecil to Flax.Build

---
 Source/Platforms/DotNet/Mono.Cecil.dll        |   3 +
 Source/Platforms/DotNet/Mono.Cecil.pdb        |   3 +
 Source/Tools/Flax.Build/Flax.Build.csproj     |   4 +
 .../Tools/Flax.Build/Utilities/MonoCecil.cs   | 106 ++++++++++++++++++
 4 files changed, 116 insertions(+)
 create mode 100644 Source/Platforms/DotNet/Mono.Cecil.dll
 create mode 100644 Source/Platforms/DotNet/Mono.Cecil.pdb
 create mode 100644 Source/Tools/Flax.Build/Utilities/MonoCecil.cs

diff --git a/Source/Platforms/DotNet/Mono.Cecil.dll b/Source/Platforms/DotNet/Mono.Cecil.dll
new file mode 100644
index 000000000..e14dd37ce
--- /dev/null
+++ b/Source/Platforms/DotNet/Mono.Cecil.dll
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bf98db6182162915571b114eedb4dcc2c3130564b389719cfb0eb76ce46fc4f9
+size 358400
diff --git a/Source/Platforms/DotNet/Mono.Cecil.pdb b/Source/Platforms/DotNet/Mono.Cecil.pdb
new file mode 100644
index 000000000..458e14b7a
--- /dev/null
+++ b/Source/Platforms/DotNet/Mono.Cecil.pdb
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e3ac01c6e32ddb22a52b60fa29f75d2d2e8ff07ab60e0dcacb3400226a24b0a1
+size 184440
diff --git a/Source/Tools/Flax.Build/Flax.Build.csproj b/Source/Tools/Flax.Build/Flax.Build.csproj
index 0d592b0ac..e91be5b0c 100644
--- a/Source/Tools/Flax.Build/Flax.Build.csproj
+++ b/Source/Tools/Flax.Build/Flax.Build.csproj
@@ -49,6 +49,9 @@
     <Reference Include="Ionic.Zip.Reduced">
       <HintPath>..\..\..\Source\Platforms\DotNet\Ionic.Zip.Reduced.dll</HintPath>
     </Reference>
+    <Reference Include="Mono.Cecil">
+      <HintPath>..\..\..\Source\Platforms\DotNet\Mono.Cecil.dll</HintPath>
+    </Reference>
     <Reference Include="Microsoft.VisualStudio.Setup.Configuration.Interop">
       <HintPath>..\..\..\Source\Platforms\DotNet\Microsoft.VisualStudio.Setup.Configuration.Interop.dll</HintPath>
       <EmbedInteropTypes>True</EmbedInteropTypes>
@@ -165,6 +168,7 @@
     <Compile Include="Projects\VisualStudio\VisualStudioProjectGenerator.cs" />
     <Compile Include="Projects\VisualStudio\VisualStudioVersion.cs" />
     <Compile Include="Projects\XCodeProjectGenerator.cs" />
+    <Compile Include="Utilities\MonoCecil.cs" />
     <Compile Include="Utilities\StringWriterWithEncoding.cs" />
     <Compile Include="Utilities\Tokenizer.cs" />
     <Compile Include="Utilities\TwoWayEnumerator.cs" />
diff --git a/Source/Tools/Flax.Build/Utilities/MonoCecil.cs b/Source/Tools/Flax.Build/Utilities/MonoCecil.cs
new file mode 100644
index 000000000..305b4e34f
--- /dev/null
+++ b/Source/Tools/Flax.Build/Utilities/MonoCecil.cs
@@ -0,0 +1,106 @@
+// Copyright (c) 2012-2022 Wojciech Figat. All rights reserved.
+
+using System;
+using System.Linq;
+using Mono.Cecil;
+
+namespace Flax.Build
+{
+    /// <summary>
+    /// The utilities for Mono.Cecil library usage.
+    /// </summary>
+    internal static class MonoCecil
+    {
+        public static bool HasAttribute(this TypeDefinition type, string fullName)
+        {
+            return type.CustomAttributes.Any(x => x.AttributeType.FullName == fullName);
+        }
+
+        public static bool HasAttribute(this FieldDefinition type, string fullName)
+        {
+            return type.CustomAttributes.Any(x => x.AttributeType.FullName == fullName);
+        }
+
+        public static bool HasInterface(this TypeDefinition type, string fullName)
+        {
+            return type.Interfaces.Any(x => x.InterfaceType.FullName == fullName);
+        }
+
+        public static bool HasMethod(this TypeDefinition type, string name)
+        {
+            return type.Methods.Any(x => x.Name == name);
+        }
+
+        public static MethodDefinition GetMethod(this TypeDefinition type, string name)
+        {
+            return type.Methods.First(x => x.Name == name);
+        }
+
+        public static MethodDefinition GetMethod(this TypeDefinition type, string name, int argCount)
+        {
+            return type.Methods.First(x => x.Name == name && x.Parameters.Count == argCount);
+        }
+
+        public static FieldDefinition GetField(this TypeDefinition type, string name)
+        {
+            return type.Fields.First(x => x.Name == name);
+        }
+
+        public static bool IsScriptingObject(this TypeDefinition type)
+        {
+            if (type.FullName == "FlaxEngine.Object")
+                return true;
+            return type.BaseType.IsScriptingObject();
+        }
+
+        public static bool IsScriptingObject(this TypeReference type)
+        {
+            if (type == null)
+                return false;
+            if (type.FullName == "FlaxEngine.Object")
+                return true;
+            try
+            {
+                return type.Resolve().IsScriptingObject();
+            }
+            catch
+            {
+                return false;
+            }
+        }
+
+        public static bool CanBeResolved(this TypeReference type)
+        {
+            while (type != null)
+            {
+                if (type.Scope.Name == "Windows")
+                    return false;
+                if (type.Scope.Name == "mscorlib")
+                    return type.Resolve() != null;
+
+                try
+                {
+                    type = type.Resolve().BaseType;
+                }
+                catch
+                {
+                    return false;
+                }
+            }
+            return true;
+        }
+
+        public static MethodReference InflateGeneric(this MethodReference generic, TypeReference T)
+        {
+            var instance = new GenericInstanceMethod(generic);
+            instance.GenericArguments.Add(T);
+            return instance;
+        }
+
+        public static void GetTypeReference(this ModuleDefinition module, string fullName, out TypeReference type)
+        {
+            if (!module.TryGetTypeReference(fullName, out type))
+                throw new Exception($"Failed to find type {fullName} from module {module.FileName}.");
+        }
+    }
+}