diff --git a/BeefLibs/corlib/src/Reflection/FieldInfo.bf b/BeefLibs/corlib/src/Reflection/FieldInfo.bf
index 562a8a01..e75d8f57 100644
--- a/BeefLibs/corlib/src/Reflection/FieldInfo.bf
+++ b/BeefLibs/corlib/src/Reflection/FieldInfo.bf
@@ -24,6 +24,7 @@ namespace System.Reflection
 	    public int32 MemberOffset => (int32)mFieldData.mData;
 	    public Type FieldType => Type.[Friend]GetType(mFieldData.mFieldTypeId);
 		public bool IsConst => mFieldData.mFlags.HasFlag(.Const);
+		public bool IsReadOnly => mFieldData.mFlags.HasFlag(.ReadOnly);
 		public bool IsStatic => mFieldData.mFlags.HasFlag(.Static);
 		public bool IsPublic => (mFieldData.mFlags & .FieldAccessMask) == .Public;
 		public bool IsProtected => (mFieldData.mFlags & .FieldAccessMask) == .Protected;
diff --git a/BeefLibs/corlib/src/Reflection/MethodInfo.bf b/BeefLibs/corlib/src/Reflection/MethodInfo.bf
index 95bc79d7..5cf4f49d 100644
--- a/BeefLibs/corlib/src/Reflection/MethodInfo.bf
+++ b/BeefLibs/corlib/src/Reflection/MethodInfo.bf
@@ -47,6 +47,9 @@ namespace System.Reflection
 		public bool IsPrivate => Compiler.IsComptime ?
 			(Type.[Friend]Comptime_Method_GetInfo(mData.mComptimeMethodInstance).mMethodFlags & .MethodAccessMask) == 0 :
 			(mData.mMethodData.[Friend]mFlags & .MethodAccessMask) == 0;
+		public bool IsReadOnly => Compiler.IsComptime ?
+			(Type.[Friend]Comptime_Method_GetInfo(mData.mComptimeMethodInstance).mMethodFlags & .ReadOnly) == 0 :
+			(mData.mMethodData.[Friend]mFlags & .ReadOnly) == 0;
 
 		public StringView Name => Compiler.IsComptime ?
 			Type.[Friend]Comptime_Method_GetName(mData.mComptimeMethodInstance) :
diff --git a/BeefLibs/corlib/src/Type.bf b/BeefLibs/corlib/src/Type.bf
index 0f961213..f4159dfa 100644
--- a/BeefLibs/corlib/src/Type.bf
+++ b/BeefLibs/corlib/src/Type.bf
@@ -1477,7 +1477,8 @@ namespace System.Reflection
         SpecialName             = 0x0080,     // field is special.  Name describes how.
         EnumPayload				= 0x0100,
 		EnumDiscriminator		= 0x0200,
-		EnumCase				= 0x0400
+		EnumCase				= 0x0400,
+		ReadOnly				= 0x0800,
     }
 
 	public enum MethodFlags : uint16
@@ -1487,27 +1488,17 @@ namespace System.Reflection
 		Public                  = 0x0006,
 
 		// method contract attributes.
-		Static              	=  0x0010,     // Defined on type, else per instance.
-		Final               	=  0x0020,     // Method may not be overridden.
-		Virtual             	=  0x0040,     // Method virtual.
-		HideBySig           	=  0x0080,     // Method hides by name+sig, else just by name.
-		CheckAccessOnOverride	=  0x0200,
-
-		// vtable layout mask - Use this mask to retrieve vtable attributes.
-		VtableLayoutMask    	=  0x0100,
-#unwarn
-		ReuseSlot           	=  0x0000,     // The default.
-#unwarn
-		NewSlot             	=  0x0100,     // Method always gets a new slot in the vtable.
-		// end vtable layout mask
-
-		// method implementation attributes.
-		Abstract            	=  0x0400,     // Method does not provide an implementation.
-		SpecialName         	=  0x0800,     // Method is special.  Name describes how.
-		StdCall					=  0x1000,
-		FastCall				=  0x2000,
-		ThisCall				=  0x3000, // Purposely resuing StdCall|FastCall
-		Mutating				=  0x4000,
-		Constructor				=  0x8000,
+		Static              	= 0x0010,     // Defined on type, else per instance.
+		Final               	= 0x0020,     // Method may not be overridden.
+		Virtual             	= 0x0040,     // Method virtual.
+		HideBySig           	= 0x0080,     // Method hides by name+sig, else just by name.
+		ReadOnly				= 0x0100,
+		Abstract            	= 0x0400,     // Method does not provide an implementation.
+		SpecialName         	= 0x0800,     // Method is special.  Name describes how.
+		StdCall					= 0x1000,
+		FastCall				= 0x2000,
+		ThisCall				= 0x3000, // Purposely resuing StdCall|FastCall
+		Mutating				= 0x4000,
+		Constructor				= 0x8000,
 	}
 }
diff --git a/IDEHelper/Compiler/BfModule.cpp b/IDEHelper/Compiler/BfModule.cpp
index 9a773843..f9e59303 100644
--- a/IDEHelper/Compiler/BfModule.cpp
+++ b/IDEHelper/Compiler/BfModule.cpp
@@ -5585,6 +5585,8 @@ BfIRValue BfModule::CreateFieldData(BfFieldInstance* fieldInstance, int customAt
 		fieldFlags = (BfFieldFlags)(fieldFlags | BfFieldFlags_Const);
 	if (fieldDef->IsEnumCaseEntry())
 		fieldFlags = (BfFieldFlags)(fieldFlags | BfFieldFlags_EnumCase);
+	if (fieldDef->mIsReadOnly)
+		fieldFlags = (BfFieldFlags)(fieldFlags | BfFieldFlags_ReadOnly);	
 	
 	BfIRValue constValue;
 	BfIRValue constValue2;
@@ -7163,7 +7165,7 @@ BfIRValue BfModule::CreateTypeData(BfType* type, Dictionary<int, int>& usedStrin
 				paramFlags = (ParamFlags)(paramFlags | ParamFlag_Splat);
 			if (defaultMethod->GetParamKind(paramIdx) == BfParamKind_AppendIdx)
 				paramFlags = (ParamFlags)(paramFlags | ParamFlag_Implicit | ParamFlag_AppendIdx);
-
+			
 			BfIRValue paramNameConst = GetStringObjectValue(paramName, !mIsComptimeModule);
 
 			int paramCustomAttrIdx = -1;
diff --git a/IDEHelper/Compiler/BfResolvedTypeUtils.cpp b/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
index 26f82802..177b30f6 100644
--- a/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
+++ b/IDEHelper/Compiler/BfResolvedTypeUtils.cpp
@@ -697,6 +697,8 @@ BfMethodFlags BfMethodInstance::GetMethodFlags()
 		methodFlags = (BfMethodFlags)(methodFlags | BfMethodFlags_Mutating);
 	if (mMethodDef->mMethodType == BfMethodType_Ctor)
 		methodFlags = (BfMethodFlags)(methodFlags | BfMethodFlags_Constructor);
+	if (mMethodDef->mIsReadOnly)
+		methodFlags = (BfMethodFlags)(methodFlags | BfMethodFlags_ReadOnly);
 
 	auto callingConvention = GetOwner()->mModule->GetIRCallingConvention(this);
 	if (callingConvention == BfIRCallingConv_ThisCall)
@@ -705,6 +707,7 @@ BfMethodFlags BfMethodInstance::GetMethodFlags()
 		methodFlags = (BfMethodFlags)(methodFlags | BfMethodFlags_StdCall);
 	else if (callingConvention == BfIRCallingConv_FastCall)
 		methodFlags = (BfMethodFlags)(methodFlags | BfMethodFlags_FastCall);
+
 	return methodFlags;
 }
 
diff --git a/IDEHelper/Compiler/BfSystem.h b/IDEHelper/Compiler/BfSystem.h
index 100efd8f..8d9465be 100644
--- a/IDEHelper/Compiler/BfSystem.h
+++ b/IDEHelper/Compiler/BfSystem.h
@@ -229,11 +229,12 @@ enum BfMethodFlags
 	BfMethodFlags_Public = 6,
 	BfMethodFlags_Static = 0x10,
 	BfMethodFlags_Virtual = 0x40,
+	BfMethodFlags_ReadOnly = 0x100,
 	BfMethodFlags_StdCall = 0x1000,
 	BfMethodFlags_FastCall = 0x2000,
 	BfMethodFlags_ThisCall = 0x3000,
 	BfMethodFlags_Mutating = 0x4000,
-	BfMethodFlags_Constructor = 0x8000,
+	BfMethodFlags_Constructor = 0x8000	
 };
 
 enum BfObjectFlags : uint8
@@ -1666,7 +1667,8 @@ enum BfFieldFlags
 	BfFieldFlags_SpecialName = 0x80,
 	BfFieldFlags_EnumPayload = 0x100,
 	BfFieldFlags_EnumDiscriminator = 0x200,
-	BfFieldFlags_EnumCase = 0x400
+	BfFieldFlags_EnumCase = 0x400,
+	BfFieldFlags_ReadOnly = 0x800
 };
 
 enum BfReflectKind