private Type determineBaseType(CompiledSourceType sourceType)
{
switch (sourceType)
{
case CompiledSourceType.Cloneable:
return(typeof(ClonedCompiledQuery <,>).MakeGenericType(_plan.OutputType, _plan.QueryType));
case CompiledSourceType.Complex:
return(typeof(ComplexCompiledQuery <,>).MakeGenericType(_plan.OutputType, _plan.QueryType));
case CompiledSourceType.Stateless:
return(typeof(StatelessCompiledQuery <,>).MakeGenericType(_plan.OutputType, _plan.QueryType));
}
throw new ArgumentOutOfRangeException();
}
private GeneratedType buildHandlerType(GeneratedAssembly assembly,
CompiledSourceType handlerType, HardCodedParameters hardcoded)
{
var queryTypeName = _plan.QueryType.Name + "CompiledQuery";
var baseType = determineBaseType(handlerType);
var type = assembly.AddType(queryTypeName, baseType);
configureCommandMethod(type, hardcoded);
if (handlerType == CompiledSourceType.Complex)
{
buildHandlerMethod(type);
}
return(type);
}
private GeneratedType buildSourceType(GeneratedAssembly assembly, CompiledSourceType handlerType,
GeneratedType compiledHandlerType)
{
var sourceBaseType = typeof(CompiledQuerySource <,>).MakeGenericType(_plan.OutputType, _plan.QueryType);
var sourceName = _plan.QueryType.Name + "CompiledQuerySource";
var sourceType = assembly.AddType(sourceName, sourceBaseType);
var hardcoded = new InjectedField(typeof(HardCodedParameters), "hardcoded");
sourceType.AllInjectedFields.Add(hardcoded);
var buildHandler = sourceType.MethodFor("BuildHandler");
switch (handlerType)
{
case CompiledSourceType.Cloneable:
var innerField = new InjectedField(typeof(IMaybeStatefulHandler));
sourceType.AllInjectedFields.Add(innerField);
var statistics = _plan.StatisticsMember == null ? "null" : $"query.{_plan.StatisticsMember.Name}";
buildHandler.Frames.Code(
$"return new Marten.Generated.{compiledHandlerType.TypeName}({innerField.Usage}, query, {statistics}, _hardcoded);");
break;
case CompiledSourceType.Stateless:
var inner = new InjectedField(typeof(IQueryHandler <>).MakeGenericType(_plan.OutputType));
sourceType.AllInjectedFields.Add(inner);
buildHandler.Frames.Code(
$"return new Marten.Generated.{compiledHandlerType.TypeName}({inner.Usage}, query, _hardcoded);");
break;
case CompiledSourceType.Complex:
var innerField2 = new InjectedField(typeof(IMaybeStatefulHandler));
sourceType.AllInjectedFields.Add(innerField2);
buildHandler.Frames.Code(
$"return new Marten.Generated.{compiledHandlerType.TypeName}({innerField2.Usage}, query, _hardcoded);");
break;
}
return(sourceType);
}
