private GeneratedMethod BuildTypeNoCache(ServiceCallSite callSite)
{
// We need to skip visibility checks because services/constructors might be private
var dynamicMethod = new DynamicMethod("ResolveService",
attributes: MethodAttributes.Public | MethodAttributes.Static,
callingConvention: CallingConventions.Standard,
returnType: typeof(object),
parameterTypes: new[] { typeof(ILEmitResolverBuilderRuntimeContext), typeof(ServiceProviderEngineScope) },
owner: GetType(),
skipVisibility: true);
// In traces we've seen methods range from 100B - 4K sized methods since we've
// stop trying to inline everything into scoped methods. We'll pay for a couple of resizes
// so there'll be allocations but we could potentially change ILGenerator to use the array pool
ILGenerator ilGenerator = dynamicMethod.GetILGenerator(512);
ILEmitResolverBuilderRuntimeContext runtimeContext = GenerateMethodBody(callSite, ilGenerator);
#if SAVE_ASSEMBLIES
var assemblyName = "Test" + DateTime.Now.Ticks;
var fileName = assemblyName + ".dll";
var assembly = AssemblyBuilder.DefineDynamicAssembly(new AssemblyName(assemblyName), AssemblyBuilderAccess.RunAndSave);
var module = assembly.DefineDynamicModule(assemblyName, fileName);
var type = module.DefineType(callSite.ServiceType.Name + "Resolver");
var method = type.DefineMethod(
"ResolveService", MethodAttributes.Public | MethodAttributes.Static, CallingConventions.Standard, typeof(object),
new[] { typeof(ILEmitResolverBuilderRuntimeContext), typeof(ServiceProviderEngineScope) });
GenerateMethodBody(callSite, method.GetILGenerator());
type.CreateTypeInfo();
// Assembly.Save is only available in .NET Framework (https://github.com/dotnet/runtime/issues/15704)
assembly.Save(fileName);
#endif
DependencyInjectionEventSource.Log.DynamicMethodBuilt(_rootScope.RootProvider, callSite.ServiceType, ilGenerator.ILOffset);
return(new GeneratedMethod()
{
Lambda = (Func <ServiceProviderEngineScope, object>)dynamicMethod.CreateDelegate(typeof(Func <ServiceProviderEngineScope, object>), runtimeContext),
Context = runtimeContext,
DynamicMethod = dynamicMethod
});
}
private GeneratedMethod BuildTypeNoCache(ServiceCallSite callSite)
{
// We need to skip visibility checks because services/constructors might be private
var dynamicMethod = new DynamicMethod("ResolveService",
attributes: MethodAttributes.Public | MethodAttributes.Static,
callingConvention: CallingConventions.Standard,
returnType: typeof(object),
parameterTypes: new[] { typeof(ILEmitResolverBuilderRuntimeContext), typeof(ServiceProviderEngineScope) },
owner: GetType(),
skipVisibility: true);
ILEmitCallSiteAnalysisResult info = ILEmitCallSiteAnalyzer.Instance.CollectGenerationInfo(callSite);
ILGenerator ilGenerator = dynamicMethod.GetILGenerator(info.Size);
ILEmitResolverBuilderRuntimeContext runtimeContext = GenerateMethodBody(callSite, ilGenerator);
#if SAVE_ASSEMBLIES
var assemblyName = "Test" + DateTime.Now.Ticks;
var fileName = "Test" + DateTime.Now.Ticks;
var assembly = AssemblyBuilder.DefineDynamicAssembly(new AssemblyName(assemblyName), AssemblyBuilderAccess.RunAndSave);
var module = assembly.DefineDynamicModule(assemblyName, assemblyName + ".dll");
var type = module.DefineType("Resolver");
var method = type.DefineMethod(
"ResolveService", MethodAttributes.Public | MethodAttributes.Static, CallingConventions.Standard, typeof(object),
new[] { typeof(ILEmitResolverBuilderRuntimeContext), typeof(ServiceProviderEngineScope) });
GenerateMethodBody(callSite, method.GetILGenerator(), info);
type.CreateTypeInfo();
assembly.Save(assemblyName + ".dll");
#endif
DependencyInjectionEventSource.Log.DynamicMethodBuilt(callSite.ServiceType, ilGenerator.ILOffset);
return(new GeneratedMethod()
{
Lambda = (Func <ServiceProviderEngineScope, object>)dynamicMethod.CreateDelegate(typeof(Func <ServiceProviderEngineScope, object>), runtimeContext),
Context = runtimeContext,
DynamicMethod = dynamicMethod
});
}