static string _getErrorMessages(Type flutterOperationType, MethodInfo methodInfo, List <ParameterInfo> parametersInfo, Type returnType)
{
if (parametersInfo == null)
{
parametersInfo = new List <ParameterInfo>(0);
}
StringBuilder builder = new StringBuilder();
string operationClassName = DartSupport.GetTypeName(flutterOperationType);
string methodName = methodInfo.Name;
builder.AppendLine($"Invalid {nameof(PlatformOperationAttribute)} for class {operationClassName}.");
builder.AppendLine($"Method name: {methodName}");
if (returnType != null)
{
string returnTypeName = DartSupport.GetTypeName(returnType);
builder.AppendLine($"- Invalid return type: {returnTypeName}");
}
foreach (ParameterInfo info in parametersInfo)
{
string paramName = info.Name;
string paramType = DartSupport.GetTypeName(info.ParameterType);
builder.AppendLine($"- Invalid \"{paramName}\" type: {paramType}");
}
return(builder.ToString());
}
static string _getErrorMessages2(Type flutterOperationType, MethodInfo methodInfo, string invalidOperationName)
{
StringBuilder builder = new StringBuilder();
string operationClassName = DartSupport.GetTypeName(flutterOperationType);
string methodName = methodInfo.Name;
builder.AppendLine($"Invalid {nameof(PlatformOperationAttribute)} for class {operationClassName}, method:{methodName}.");
//builder.AppendLine($"ID for Method {methodName} => '{invalidOperationName}' is already used by another method!");
builder.AppendLine($"Cannot exists multiple {nameof(PlatformOperationAttribute)} with the same method name: Function overloading is not supported in Dart at all.");
return(builder.ToString());
}