Output: Annotate unmanaged type usages with 'unsafe' keyword

Il2CppDumper/Il2CppCSharpDumper.cs

@@ -84,6 +84,8 @@ namespace Il2CppInspector
                 var del = type.GetMethod("Invoke");
                 // IL2CPP doesn't seem to retain return type attributes
                 //writer.Write(del.ReturnType.CustomAttributes.ToString(prefix, "return: "));
+                if (del.RequiresUnsafeContext)
+                    writer.Write("unsafe ");
                 writer.Write($"delegate {del.ReturnType.CSharpName} {type.CSharpTypeDeclarationName}(");
                 writer.Write(del.GetParametersString());
                 writer.Write($"); // TypeDefIndex: {type.Index}; {del.VirtualAddress.ToAddressString()}\n");

Il2CppInspector/Reflection/FieldInfo.cs

@@ -128,6 +128,8 @@ namespace Il2CppInspector.Reflection {
         public string GetModifierString() {
             var modifiers = new StringBuilder(GetAccessModifierString());
 
+            if (FieldType.RequiresUnsafeContext || GetCustomAttributes("System.Runtime.CompilerServices.FixedBufferAttribute").Any())
+                modifiers.Append("unsafe ");
             if (IsLiteral)
                 modifiers.Append("const ");
             // All const fields are also static by implication

Il2CppInspector/Reflection/MethodBase.cs

@@ -47,6 +47,8 @@ namespace Il2CppInspector.Reflection
         public bool IsStatic => (Attributes & MethodAttributes.Static) == MethodAttributes.Static;
         public bool IsVirtual => (Attributes & MethodAttributes.Virtual) == MethodAttributes.Virtual;
 
+        public virtual bool RequiresUnsafeContext => DeclaredParameters.Any(p => p.ParameterType.RequiresUnsafeContext);
+
         // TODO: GetMethodBody()
 
         public string CSharpName =>
@@ -132,6 +134,8 @@ namespace Il2CppInspector.Reflection
 
             var modifiers = new StringBuilder(GetAccessModifierString());
 
+            if (RequiresUnsafeContext)
+                modifiers.Append("unsafe ");
             if (IsAbstract)
                 modifiers.Append("abstract ");
             // Methods that implement interfaces are IsVirtual && IsFinal with MethodAttributes.NewSlot (don't show 'virtual sealed' for these)

Il2CppInspector/Reflection/MethodInfo.cs

@@ -20,6 +20,8 @@ namespace Il2CppInspector.Reflection
         private readonly int returnTypeUsage;
         public TypeInfo ReturnType => Assembly.Model.GetTypeFromUsage(returnTypeUsage, MemberTypes.TypeInfo);
 
+        public override bool RequiresUnsafeContext => base.RequiresUnsafeContext || ReturnType.RequiresUnsafeContext;
+
         // IL2CPP doesn't seem to retain return type custom attributes
 
         public MethodInfo(Il2CppInspector pkg, int methodIndex, TypeInfo declaringType) : base(pkg, methodIndex, declaringType) {

Il2CppInspector/Reflection/TypeInfo.cs

@@ -164,6 +164,9 @@ namespace Il2CppInspector.Reflection {
         public bool IsSpecialName => (Attributes & TypeAttributes.SpecialName) == TypeAttributes.SpecialName;
         public bool IsValueType => BaseType?.FullName == "System.ValueType";
 
+        // Helper function for determining if using this type as a field, parameter etc. requires that field or method to be declared as unsafe
+        public bool RequiresUnsafeContext => IsPointer || (HasElementType && ElementType.RequiresUnsafeContext);
+
         // May get overridden by Il2CppType-based constructor below
         public override MemberTypes MemberType { get; } = MemberTypes.TypeInfo;