System.Dynamic.Utils.TypeUtils.GetUserDefinedCoercionMethod C# (CSharp) Method

        public static MethodInfo GetUserDefinedCoercionMethod(Type convertFrom, Type convertToType)
        {
            Type nnExprType = GetNonNullableType(convertFrom);
            Type nnConvType = GetNonNullableType(convertToType);

            // try exact match on types
            MethodInfo[] eMethods = nnExprType.GetMethods(BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic);

            MethodInfo method = FindConversionOperator(eMethods, convertFrom, convertToType);
            if (method != null)
            {
                return method;
            }

            MethodInfo[] cMethods = nnConvType.GetMethods(BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic);

            method = FindConversionOperator(cMethods, convertFrom, convertToType);
            if (method != null)
            {
                return method;
            }

            if (AreEquivalent(nnExprType, convertFrom) && AreEquivalent(nnConvType, convertToType))
            {
                return null;
            }

            // try lifted conversion
            return FindConversionOperator(eMethods, nnExprType, nnConvType)
                   ?? FindConversionOperator(cMethods, nnExprType, nnConvType)
                   ?? FindConversionOperator(eMethods, nnExprType, convertToType)
                   ?? FindConversionOperator(cMethods, nnExprType, convertToType);
        }