private void buildLiveAggregationType()
{
var liveBaseType = _isAsync
? typeof(AsyncLiveAggregatorBase <>)
: typeof(SyncLiveAggregatorBase <>);
liveBaseType = liveBaseType.MakeGenericType(typeof(T));
_liveType =
_assembly.AddType(GetType().NameInCode().Sanitize() + "LiveAggregation", liveBaseType);
var overrideMethodName = _isAsync ? "BuildAsync" : "Build";
var buildMethod = _liveType.MethodFor(overrideMethodName);
buildMethod.Frames.Code("if (!events.Any()) return null;");
buildMethod.Frames.Add(new CallCreateAggregateFrame(_createMethods));
buildMethod.Frames.Add(new CallApplyAggregateFrame(_applyMethods)
{
InsideForEach = true
});
buildMethod.Frames.Return(typeof(T));
_liveType.AllInjectedFields.Add(new InjectedField(GetType()));
_createMethods.BuildCreateMethod(_liveType, _aggregateMapping);
_applyMethods.BuildApplyMethod(_liveType, _aggregateMapping);
_liveType.Setters.AddRange(_applyMethods.Setters());
_liveType.Setters.AddRange(_createMethods.Setters());
_liveType.Setters.AddRange(_shouldDeleteMethods.Setters());
}
internal static ILiveAggregator <T> Build <T>(StoreOptions options)
{
var mapping = options.Storage.MappingFor(typeof(T));
var assembly = new GeneratedAssembly(new GenerationRules("Marten.Generated"));
var applyMethods = new ApplyMethodCollection(typeof(T), typeof(T));
// TODO -- this doesn't do very much right now.
var createMethods = new CreateMethodCollection(typeof(T), typeof(T));
assembly.Generation.Assemblies.Add(typeof(IMartenSession).Assembly);
assembly.Generation.Assemblies.AddRange(applyMethods.ReferencedAssemblies());
assembly.Generation.Assemblies.AddRange(createMethods.ReferencedAssemblies());
var isAsync = applyMethods.IsAsync;
assembly.Namespaces.Add("System.Linq");
var liveBaseType = isAsync
? typeof(AsyncLiveAggregatorBase <>)
: typeof(SyncLiveAggregatorBase <>);
liveBaseType = liveBaseType.MakeGenericType(typeof(T));
var liveType = assembly.AddType(typeof(T).NameInCode().Sanitize() + "LiveAggregation", liveBaseType);
var overrideMethodName = isAsync ? "BuildAsync" : "Build";
var buildMethod = liveType.MethodFor(overrideMethodName);
// TODO -- use constructor functions later
// TODO -- use static Create() methods
// TODO -- validate that there is some way to create the aggregate
buildMethod.Frames.Code("if (!events.Any()) return null;");
buildMethod.Frames.Add(new CallCreateAggregateFrame(createMethods));
buildMethod.Frames.Add(new CallApplyAggregateFrame(applyMethods)
{
InsideForEach = true
});
buildMethod.Frames.Return(typeof(T));
createMethods.BuildCreateMethod(liveType, mapping);
applyMethods.BuildApplyMethod(liveType, mapping);
var assemblyGenerator = new AssemblyGenerator();
assemblyGenerator.ReferenceAssembly(typeof(IMartenSession).Assembly);
assemblyGenerator.Compile(assembly);
return((ILiveAggregator <T>)Activator.CreateInstance(liveType.CompiledType));
}
private void buildLiveAggregationType()
{
var liveBaseType = _isAsync
? typeof(AsyncLiveAggregatorBase <>)
: typeof(SyncLiveAggregatorBase <>);
liveBaseType = liveBaseType.MakeGenericType(typeof(T));
_liveType =
_assembly.AddType(GetType().NameInCode().Sanitize() + "LiveAggregation", liveBaseType);
var overrideMethodName = _isAsync ? "BuildAsync" : "Build";
var buildMethod = _liveType.MethodFor(overrideMethodName);
buildMethod.DerivedVariables.Add(Variable.For <IQuerySession>("(IQuerySession)session"));
buildMethod.Frames.Code("if (!events.Any()) return null;");
buildMethod.Frames.Add(new DeclareAggregateFrame(typeof(T)));
var callCreateAggregateFrame = new CallCreateAggregateFrame(_createMethods);
// This is the existing snapshot passed into the LiveAggregator
var snapshot = buildMethod.Arguments.Single(x => x.VariableType == typeof(T));
callCreateAggregateFrame.CoalesceAssignTo(snapshot);
buildMethod.Frames.Add(callCreateAggregateFrame);
buildMethod.Frames.Add(new CallApplyAggregateFrame(_applyMethods)
{
InsideForEach = true
});
buildMethod.Frames.Return(typeof(T));
_liveType.AllInjectedFields.Add(new InjectedField(GetType()));
_createMethods.BuildCreateMethod(_liveType, _aggregateMapping);
_applyMethods.BuildApplyMethod(_liveType, _aggregateMapping);
_liveType.Setters.AddRange(_applyMethods.Setters());
_liveType.Setters.AddRange(_createMethods.Setters());
_liveType.Setters.AddRange(_shouldDeleteMethods.Setters());
}