public virtual ControllerDescriptor Generate(Type grpcServiceType)
{
string serviceName = grpcServiceType.Name;
IReadOnlyList <MethodDescriptor> methods = new ReadOnlyCollection <MethodDescriptor>(grpcServiceType.GetMethods(BindingFlags.Public | BindingFlags.Instance | BindingFlags.InvokeMethod).Where(x => x.DeclaringType == grpcServiceType)
.Select(GenerateMethodDescriptor).ToList());
ControllerDescriptor controllerDescriptor = new ControllerDescriptor(grpcServiceType, methods)
{
ServiceName = serviceName,
TypeName = serviceName + "Controller"
};
controllerDescriptor.CustomAttributes.Add(new AttributeDescriptor {
Constructor = typeof(ApiControllerAttribute).GetConstructor(Type.EmptyTypes), ConstructorArgs = _emptyObjectArray
});
return(controllerDescriptor);
}
public Assembly Compile(ControllerDescriptor controllerDescriptor)
{
string baseName = controllerDescriptor.ServiceName;
Type grpcServiceType = controllerDescriptor.GrpcServiceType;
AssemblyBuilder asmBldr = AssemblyBuilder.DefineDynamicAssembly(new AssemblyName(baseName), AssemblyBuilderAccess.Run);
ModuleBuilder modBldr = asmBldr.DefineDynamicModule(baseName);
TypeBuilder typeBuilder = modBldr.DefineType(controllerDescriptor.TypeName, TypeAttributes.Public | TypeAttributes.Class | TypeAttributes.AutoClass | TypeAttributes.AnsiClass | TypeAttributes.BeforeFieldInit | TypeAttributes.AutoLayout, controllerDescriptor.BaseType);
SetAttributes(controllerDescriptor.CustomAttributes, typeBuilder.SetCustomAttribute);
FieldBuilder serviceField = typeBuilder.DefineField("_service", grpcServiceType, FieldAttributes.Private | FieldAttributes.InitOnly);
FieldBuilder ctxFactoryField = typeBuilder.DefineField("_ctxFact", typeof(IServerCallContextFactory), FieldAttributes.Private | FieldAttributes.InitOnly);
DefineConstructor(typeBuilder, serviceField, ctxFactoryField);
foreach (MethodDescriptor md in controllerDescriptor.Methods)
{
DefineMethod(typeBuilder, md, serviceField, ctxFactoryField);
}
return(typeBuilder.CreateTypeInfo().Assembly);
}
