public void EmitExecuteMethodBody(EmitGenerator gen, LocalBuilder instance)
{
// Use MakeByRefType(), because this is an out (ref) parameter in the method signature.
var paramType = _dependencyProvider.TargetType.MakeByRefType();
var paramTypes = new Type[] { typeof(InjectionContext), paramType };
var createObjectMethod = _paramField.FieldType.GetMethod("CreateObject", paramTypes);
if (createObjectMethod == null)
{
throw new ImpossibleException();
}
_paramValue = gen.DeclareLocal(_dependencyProvider.TargetType);
gen.LoadThis();
gen.LoadField(_paramField);
gen.LoadArgument(1);
gen.LoadLocalAddress(_paramValue);
gen.CallMethod(createObjectMethod);
}
public void EmitExecuteMethodBody(EmitGenerator gen, LocalBuilder instance)
{
if (_dependencyProviders == null || _dependencyProviders.Length == 0)
{
//var dummyClass = new DummyClass();
gen.New(_injectedCtor);
gen.StoreLocal(instance);
}
else
{
//IObjectRegistration p1;
//IConfigurationModule p2;
//ILifetimeScope p3;
//_parameterMerger.Merge(context, out p1, out p2, out p3);
//instance = new DummyClass(p1, p2, p3);
var mergeMethod = _paramMergerField.FieldType.GetMethod("Merge");
if (mergeMethod == null)
{
throw new ImpossibleException();
}
#region Define Locals
//IObjectRegistration p1;
//IConfigurationModule p2;
//ILifetimeScope p3;
var ctorParamBuilders = new LocalBuilder[_dependencyProviders.Length];
for (int i = 0; i < _dependencyProviders.Length; i++)
{
ctorParamBuilders[i] = gen.DeclareLocal(_dependencyProviders[i].TargetType);
}
#endregion
#region _parameterMerger.Merge(context, out p1, out p2, out p3);
gen.LoadThis();
gen.LoadField(_paramMergerField);
gen.LoadArgument(1);
for (int i = 0; i < ctorParamBuilders.Length; i++)
{
gen.LoadLocalAddress(ctorParamBuilders[i]);
}
gen.CallMethod(mergeMethod);
#endregion
#region instance = new DummyClass(p1, p2, p3);
for (int i = 0; i < ctorParamBuilders.Length; i++)
{
gen.LoadLocal(ctorParamBuilders[i]);
}
gen.New(_injectedCtor);
gen.StoreLocal(instance);
#endregion
}
}
