public ISymbolNode ComputeConstantLookup(ReadyToRunHelperId lookupKind, object targetOfLookup)
{
switch (lookupKind)
{
case ReadyToRunHelperId.TypeHandle:
return(NodeFactory.ConstructedTypeSymbol((TypeDesc)targetOfLookup));
case ReadyToRunHelperId.NecessaryTypeHandle:
return(NodeFactory.NecessaryTypeSymbol((TypeDesc)targetOfLookup));
case ReadyToRunHelperId.TypeHandleForCasting:
{
var type = (TypeDesc)targetOfLookup;
if (type.IsNullable)
{
targetOfLookup = type.Instantiation[0];
}
return(NodeFactory.NecessaryTypeSymbol((TypeDesc)targetOfLookup));
}
case ReadyToRunHelperId.MethodDictionary:
return(NodeFactory.MethodGenericDictionary((MethodDesc)targetOfLookup));
case ReadyToRunHelperId.MethodEntry:
return(NodeFactory.FatFunctionPointer((MethodDesc)targetOfLookup));
case ReadyToRunHelperId.MethodHandle:
return(NodeFactory.RuntimeMethodHandle((MethodDesc)targetOfLookup));
case ReadyToRunHelperId.FieldHandle:
return(NodeFactory.RuntimeFieldHandle((FieldDesc)targetOfLookup));
case ReadyToRunHelperId.DefaultConstructor:
{
var type = (TypeDesc)targetOfLookup;
MethodDesc ctor = type.GetDefaultConstructor();
if (ctor == null)
{
MetadataType activatorType = TypeSystemContext.SystemModule.GetKnownType("System", "Activator");
MetadataType classWithMissingCtor = activatorType.GetKnownNestedType("ClassWithMissingConstructor");
ctor = classWithMissingCtor.GetParameterlessConstructor();
}
return(NodeFactory.CanonicalEntrypoint(ctor));
}
case ReadyToRunHelperId.ObjectAllocator:
{
var type = (TypeDesc)targetOfLookup;
return(NodeFactory.ExternSymbol(JitHelper.GetNewObjectHelperForType(type)));
}
default:
throw new NotImplementedException();
}
}
public ISymbolNode ComputeConstantLookup(ReadyToRunHelperId lookupKind, object targetOfLookup)
{
switch (lookupKind)
{
case ReadyToRunHelperId.TypeHandle:
return(NodeFactory.ConstructedTypeSymbol(WithoutFunctionPointerType((TypeDesc)targetOfLookup)));
case ReadyToRunHelperId.NecessaryTypeHandle:
return(NecessaryTypeSymbolIfPossible(WithoutFunctionPointerType((TypeDesc)targetOfLookup)));
case ReadyToRunHelperId.TypeHandleForCasting:
{
var type = (TypeDesc)targetOfLookup;
if (type.IsNullable)
{
targetOfLookup = type.Instantiation[0];
}
return(NecessaryTypeSymbolIfPossible((TypeDesc)targetOfLookup));
}
case ReadyToRunHelperId.MethodDictionary:
return(NodeFactory.MethodGenericDictionary((MethodDesc)targetOfLookup));
case ReadyToRunHelperId.MethodEntry:
return(NodeFactory.FatFunctionPointer((MethodDesc)targetOfLookup));
case ReadyToRunHelperId.MethodHandle:
return(NodeFactory.RuntimeMethodHandle((MethodDesc)targetOfLookup));
case ReadyToRunHelperId.FieldHandle:
return(NodeFactory.RuntimeFieldHandle((FieldDesc)targetOfLookup));
case ReadyToRunHelperId.DefaultConstructor:
{
var type = (TypeDesc)targetOfLookup;
MethodDesc ctor = GetConstructorForCreateInstanceIntrinsic(type);
return(NodeFactory.CanonicalEntrypoint(ctor));
}
case ReadyToRunHelperId.ObjectAllocator:
{
var type = (TypeDesc)targetOfLookup;
return(NodeFactory.ExternSymbol(JitHelper.GetNewObjectHelperForType(type)));
}
default:
throw new NotImplementedException();
}
}