public static void GetGeneratedCode(Type keyType, Type payloadType, out string generatedClassName, out string expandedCode, out List <Assembly> assemblyReferences)
{
var template = new SafeBatchTemplate();
assemblyReferences = new List <Assembly>
{
Transformer.SystemRuntimeSerializationDll // needed for [DataContract] and [DataMember] in generated code
};
assemblyReferences.AddRange(Transformer.AssemblyReferencesNeededFor(keyType));
template.keyType = keyType;
assemblyReferences.AddRange(Transformer.AssemblyReferencesNeededFor(payloadType));
template.payloadType = payloadType;
template.needsPolymorphismCheck =
!payloadType.GetTypeInfo().IsValueType&&
!payloadType.IsAnonymousTypeName() &&
!payloadType.GetTypeInfo().IsSealed;
template.payloadMightBeNull = payloadType.CanContainNull();
generatedClassName = Transformer.GetBatchClassName(keyType, payloadType);
template.CLASSNAME = generatedClassName.CleanUpIdentifierName();
generatedClassName = generatedClassName.AddNumberOfNecessaryGenericArguments(keyType, payloadType);
var payloadRepresentation = new ColumnarRepresentation(payloadType);
template.fields = payloadRepresentation.AllFields;
template.noPublicFields = payloadRepresentation.noFields;
expandedCode = template.TransformText();
}
/// <summary>
/// Generate a batch class definition from the types <typeparamref name="TKey"/> and <typeparamref name="TPayload"/>.
/// Compile the definition, dynamically load the assembly containing it, and return the Type representing the
/// batch class.
/// </summary>
/// <typeparam name="TKey">
/// The key type for the batch class.
/// </typeparam>
/// <typeparam name="TPayload">
/// The payload type for which a batch class is generated. The batch class will have a field F of type T[] for every field
/// F of type T in the type <typeparamref name="TPayload"/>.
/// </typeparam>
/// <returns>
/// A type that is defined to be a subtype of Batch<<typeparamref name="TKey"/>,<typeparamref name="TPayload"/>>.
/// </returns>
public static Type GenerateBatchClass <TKey, TPayload>()
{
#if CODEGEN_TIMING
Stopwatch sw = new Stopwatch();
sw.Start();
#endif
var keyType = typeof(TKey);
var payloadType = typeof(TPayload);
SafeBatchTemplate.GetGeneratedCode(keyType, payloadType, out string generatedClassName, out string expandedCode, out List <Assembly> assemblyReferences);
assemblyReferences.Add(MemoryManager.GetMemoryPool <TKey, TPayload>().GetType().GetTypeInfo().Assembly);
assemblyReferences.Add(SystemRuntimeSerializationDll);
if (keyType != typeof(Empty))
{
assemblyReferences.Add(typeof(Empty).GetTypeInfo().Assembly);
assemblyReferences.Add(StreamMessageManager.GetStreamMessageType <Empty, TPayload>().GetTypeInfo().Assembly);
}
var a = CompileSourceCode(expandedCode, assemblyReferences, out string errorMessages);
var t = a.GetType(generatedClassName);
if (t.GetTypeInfo().IsGenericType)
{
var list = keyType.GetAnonymousTypes();
list.AddRange(payloadType.GetAnonymousTypes());
t = t.MakeGenericType(list.ToArray());
}
#if CODEGEN_TIMING
sw.Stop();
Console.WriteLine("Time to generate and instantiate a batch for {0},{1}: {2}ms",
keyType.GetCSharpSourceSyntax(), payload.GetCSharpSourceSyntax(), sw.ElapsedMilliseconds);
#endif
return(t);
}
