private Type GetProviderDesignTimeServices(string provider, bool throwOnError)
{
Assembly providerAssembly;
try
{
providerAssembly = _assemblyLoader.Load(provider);
}
catch (Exception ex)
{
if (!throwOnError)
{
return(null);
}
throw new OperationException(DesignCoreStrings.CannotFindRuntimeProviderAssembly(provider), ex);
}
var providerServicesAttribute = providerAssembly.GetCustomAttribute <DesignTimeProviderServicesAttribute>();
if (providerServicesAttribute == null)
{
if (!throwOnError)
{
return(null);
}
throw new InvalidOperationException(
DesignCoreStrings.CannotFindDesignTimeProviderAssemblyAttribute(
nameof(DesignTimeProviderServicesAttribute),
provider));
}
Assembly designTimeProviderAssembly;
try
{
designTimeProviderAssembly = _assemblyLoader.Load(providerServicesAttribute.AssemblyName);
}
catch (Exception ex)
when(ex is FileNotFoundException || ex is FileLoadException || ex is BadImageFormatException)
{
if (!throwOnError)
{
return(null);
}
throw new OperationException(
DesignCoreStrings.CannotFindDesignTimeProviderAssembly(providerServicesAttribute.PackageName), ex);
}
return(designTimeProviderAssembly.GetType(
providerServicesAttribute.TypeName,
throwOnError: true,
ignoreCase: false));
}