public override IEnumerable <CombinedDependencyListEntry> GetConditionalStaticDependencies(NodeFactory factory)
{
Debug.Assert(EmitVirtualSlotsAndInterfaces);
DefType defType = _type.GetClosestDefType();
// If we're producing a full vtable, none of the dependencies are conditional.
if (!factory.VTable(defType).HasFixedSlots)
{
foreach (MethodDesc decl in defType.EnumAllVirtualSlots())
{
// Generic virtual methods are tracked by an orthogonal mechanism.
if (decl.HasInstantiation)
{
continue;
}
MethodDesc impl = defType.FindVirtualFunctionTargetMethodOnObjectType(decl);
if (impl.OwningType == defType && !impl.IsAbstract)
{
MethodDesc canonImpl = impl.GetCanonMethodTarget(CanonicalFormKind.Specific);
yield return(new CombinedDependencyListEntry(factory.MethodEntrypoint(canonImpl, _type.IsValueType), factory.VirtualMethodUse(decl), "Virtual method"));
}
}
Debug.Assert(
_type == defType ||
((System.Collections.IStructuralEquatable)defType.RuntimeInterfaces).Equals(_type.RuntimeInterfaces,
EqualityComparer <DefType> .Default));
// Add conditional dependencies for interface methods the type implements. For example, if the type T implements
// interface IFoo which has a method M1, add a dependency on T.M1 dependent on IFoo.M1 being called, since it's
// possible for any IFoo object to actually be an instance of T.
foreach (DefType interfaceType in defType.RuntimeInterfaces)
{
Debug.Assert(interfaceType.IsInterface);
foreach (MethodDesc interfaceMethod in interfaceType.GetAllMethods())
{
if (interfaceMethod.Signature.IsStatic)
{
continue;
}
// Generic virtual methods are tracked by an orthogonal mechanism.
if (interfaceMethod.HasInstantiation)
{
continue;
}
MethodDesc implMethod = defType.ResolveInterfaceMethodToVirtualMethodOnType(interfaceMethod);
if (implMethod != null)
{
yield return(new CombinedDependencyListEntry(factory.VirtualMethodUse(implMethod), factory.VirtualMethodUse(interfaceMethod), "Interface method"));
}
}
}
}
}
/// <summary>
/// Gets a value indicating whether '<paramref name="type"/>' might have a non-empty dispatch map.
/// Note that this is only an approximation because we might not be able to take into account
/// whether the interface methods are actually used.
/// </summary>
public static bool MightHaveInterfaceDispatchMap(TypeDesc type, NodeFactory factory)
{
if (type.IsArrayTypeWithoutGenericInterfaces())
{
return(false);
}
if (!type.IsArray && !type.IsDefType)
{
return(false);
}
DefType defType = type.GetClosestDefType();
foreach (DefType interfaceType in defType.RuntimeInterfaces)
{
IEnumerable <MethodDesc> slots;
// If the vtable has fixed slots, we can query it directly.
// If it's a lazily built vtable, we might not be able to query slots
// just yet, so approximate by looking at all methods.
VTableSliceNode vtableSlice = factory.VTable(interfaceType);
if (vtableSlice.HasFixedSlots)
{
slots = vtableSlice.Slots;
}
else
{
slots = interfaceType.GetAllMethods();
}
foreach (MethodDesc declMethod in slots)
{
if (declMethod.Signature.IsStatic)
{
continue;
}
var implMethod = defType.ResolveInterfaceMethodToVirtualMethodOnType(declMethod);
if (implMethod != null)
{
return(true);
}
}
}
return(false);
}
protected override DependencyList ComputeNonRelocationBasedDependencies(NodeFactory factory)
{
DependencyList dependencyList = new DependencyList();
if (_type.RuntimeInterfaces.Length > 0)
{
dependencyList.Add(factory.InterfaceDispatchMap(_type), "Interface dispatch map");
// If any of the implemented interfaces have variance, calls against compatible interface methods
// could result in interface methods of this type being used (e.g. IEnumberable<object>.GetEnumerator()
// can dispatch to an implementation of IEnumerable<string>.GetEnumerator()).
// For now, we will not try to optimize this and we will pretend all interface methods are necessary.
DefType defType = _type.GetClosestDefType();
foreach (var implementedInterface in defType.RuntimeInterfaces)
{
if (implementedInterface.HasVariance)
{
foreach (var interfaceMethod in implementedInterface.GetAllVirtualMethods())
{
MethodDesc implMethod = defType.ResolveInterfaceMethodToVirtualMethodOnType(interfaceMethod);
if (implMethod != null)
{
dependencyList.Add(factory.VirtualMethodUse(interfaceMethod), "Variant interface method");
dependencyList.Add(factory.VirtualMethodUse(implMethod), "Variant interface method");
}
}
}
}
}
if (_type.IsArray)
{
// Array EEType depends on System.Array's virtuals. Array EETypes don't point to
// their base type (i.e. there's no reloc based dependency making this "just work").
dependencyList.Add(factory.ConstructedTypeSymbol(_type.BaseType), "Array base type");
}
dependencyList.Add(factory.VTable(_type), "VTable");
return(dependencyList);
}
public override IEnumerable <CombinedDependencyListEntry> GetConditionalStaticDependencies(NodeFactory factory)
{
DefType defType = _type.GetClosestDefType();
foreach (MethodDesc decl in defType.EnumAllVirtualSlots())
{
MethodDesc impl = defType.FindVirtualFunctionTargetMethodOnObjectType(decl);
if (impl.OwningType == defType && !impl.IsAbstract)
{
yield return(new DependencyNodeCore <NodeFactory> .CombinedDependencyListEntry(factory.MethodEntrypoint(impl, _type.IsValueType), factory.VirtualMethodUse(decl), "Virtual method"));
}
}
Debug.Assert(
_type == defType ||
((System.Collections.IStructuralEquatable)defType.RuntimeInterfaces).Equals(_type.RuntimeInterfaces,
EqualityComparer <DefType> .Default));
// Add conditional dependencies for interface methods the type implements. For example, if the type T implements
// interface IFoo which has a method M1, add a dependency on T.M1 dependent on IFoo.M1 being called, since it's
// possible for any IFoo object to actually be an instance of T.
foreach (DefType interfaceType in defType.RuntimeInterfaces)
{
Debug.Assert(interfaceType.IsInterface);
foreach (MethodDesc interfaceMethod in interfaceType.GetAllVirtualMethods())
{
MethodDesc implMethod = defType.ResolveInterfaceMethodToVirtualMethodOnType(interfaceMethod);
if (implMethod != null)
{
yield return(new CombinedDependencyListEntry(factory.VirtualMethodUse(implMethod), factory.ReadyToRunHelper(ReadyToRunHelperId.InterfaceDispatch, interfaceMethod), "Interface method"));
yield return(new CombinedDependencyListEntry(factory.VirtualMethodUse(implMethod), factory.ReadyToRunHelper(ReadyToRunHelperId.ResolveVirtualFunction, interfaceMethod), "Interface method address"));
}
}
}
}
private void AddVirtualMethodUseDependencies(DependencyList dependencyList, NodeFactory factory)
{
if (_type.RuntimeInterfaces.Length > 0 && !factory.VTable(_type).HasFixedSlots)
{
DefType closestDefType = _type.GetClosestDefType();
foreach (var implementedInterface in _type.RuntimeInterfaces)
{
// If the type implements ICastable, the methods are implicitly necessary
if (implementedInterface == factory.ICastableInterface)
{
MethodDesc isInstDecl = implementedInterface.GetKnownMethod("IsInstanceOfInterface", null);
MethodDesc getImplTypeDecl = implementedInterface.GetKnownMethod("GetImplType", null);
MethodDesc isInstMethodImpl = _type.ResolveInterfaceMethodTarget(isInstDecl);
MethodDesc getImplTypeMethodImpl = _type.ResolveInterfaceMethodTarget(getImplTypeDecl);
if (isInstMethodImpl != null)
{
dependencyList.Add(factory.VirtualMethodUse(isInstMethodImpl), "ICastable IsInst");
}
if (getImplTypeMethodImpl != null)
{
dependencyList.Add(factory.VirtualMethodUse(getImplTypeMethodImpl), "ICastable GetImplType");
}
}
// If any of the implemented interfaces have variance, calls against compatible interface methods
// could result in interface methods of this type being used (e.g. IEnumberable<object>.GetEnumerator()
// can dispatch to an implementation of IEnumerable<string>.GetEnumerator()).
// For now, we will not try to optimize this and we will pretend all interface methods are necessary.
bool allInterfaceMethodsAreImplicitlyUsed = false;
if (implementedInterface.HasVariance)
{
TypeDesc interfaceDefinition = implementedInterface.GetTypeDefinition();
for (int i = 0; i < interfaceDefinition.Instantiation.Length; i++)
{
if (((GenericParameterDesc)interfaceDefinition.Instantiation[i]).Variance != 0 &&
!implementedInterface.Instantiation[i].IsValueType)
{
allInterfaceMethodsAreImplicitlyUsed = true;
break;
}
}
}
if (!allInterfaceMethodsAreImplicitlyUsed &&
(_type.IsArray || _type.GetTypeDefinition() == factory.ArrayOfTEnumeratorType) &&
implementedInterface.HasInstantiation)
{
// NOTE: we need to also do this for generic interfaces on arrays because they have a weird casting rule
// that doesn't require the implemented interface to be variant to consider it castable.
// For value types, we only need this when the array is castable by size (int[] and ICollection<uint>),
// or it's a reference type (Derived[] and ICollection<Base>).
TypeDesc elementType = _type.IsArray ? ((ArrayType)_type).ElementType : _type.Instantiation[0];
allInterfaceMethodsAreImplicitlyUsed =
CastingHelper.IsArrayElementTypeCastableBySize(elementType) ||
(elementType.IsDefType && !elementType.IsValueType);
}
if (allInterfaceMethodsAreImplicitlyUsed)
{
foreach (var interfaceMethod in implementedInterface.GetAllMethods())
{
if (interfaceMethod.Signature.IsStatic)
{
continue;
}
// Generic virtual methods are tracked by an orthogonal mechanism.
if (interfaceMethod.HasInstantiation)
{
continue;
}
MethodDesc implMethod = closestDefType.ResolveInterfaceMethodToVirtualMethodOnType(interfaceMethod);
if (implMethod != null)
{
dependencyList.Add(factory.VirtualMethodUse(interfaceMethod), "Variant interface method");
dependencyList.Add(factory.VirtualMethodUse(implMethod), "Variant interface method");
}
}
}
}
}
}
protected override DependencyList ComputeNonRelocationBasedDependencies(NodeFactory factory)
{
DefType closestDefType = _type.GetClosestDefType();
DependencyList dependencyList = new DependencyList();
if (_type.RuntimeInterfaces.Length > 0)
{
dependencyList.Add(factory.InterfaceDispatchMap(_type), "Interface dispatch map");
// If any of the implemented interfaces have variance, calls against compatible interface methods
// could result in interface methods of this type being used (e.g. IEnumberable<object>.GetEnumerator()
// can dispatch to an implementation of IEnumerable<string>.GetEnumerator()).
// For now, we will not try to optimize this and we will pretend all interface methods are necessary.
foreach (var implementedInterface in _type.RuntimeInterfaces)
{
if (implementedInterface.HasVariance)
{
foreach (var interfaceMethod in implementedInterface.GetAllMethods())
{
if (interfaceMethod.Signature.IsStatic)
{
continue;
}
MethodDesc implMethod = closestDefType.ResolveInterfaceMethodToVirtualMethodOnType(interfaceMethod);
if (implMethod != null)
{
dependencyList.Add(factory.VirtualMethodUse(interfaceMethod), "Variant interface method");
dependencyList.Add(factory.VirtualMethodUse(implMethod), "Variant interface method");
}
}
}
}
}
if (_type.IsArray)
{
// Array EEType depends on System.Array's virtuals. Array EETypes don't point to
// their base type (i.e. there's no reloc based dependency making this "just work").
dependencyList.Add(factory.ConstructedTypeSymbol(_type.BaseType), "Array base type");
}
dependencyList.Add(factory.VTable(_type), "VTable");
if (closestDefType.HasGenericDictionarySlot())
{
// Generic dictionary pointer is part of the vtable and as such it gets only laid out
// at the final data emission phase. We need to report it as a non-relocation dependency.
dependencyList.Add(factory.TypeGenericDictionary(closestDefType), "Type generic dictionary");
}
// Include the optional fields by default. We don't know if optional fields will be needed until
// all of the interface usage has been stabilized. If we end up not needing it, the EEType node will not
// generate any relocs to it, and the optional fields node will instruct the object writer to skip
// emitting it.
dependencyList.Add(_optionalFieldsNode, "Optional fields");
// The fact that we generated an EEType means that someone can call RuntimeHelpers.RunClassConstructor.
// We need to make sure this is possible - we need the class constructor context.
if (factory.TypeSystemContext.HasLazyStaticConstructor(_type))
{
dependencyList.Add(factory.TypeNonGCStaticsSymbol((MetadataType)_type), "Class constructor");
}
return(dependencyList);
}
protected override DependencyList ComputeNonRelocationBasedDependencies(NodeFactory factory)
{
DependencyList dependencyList = base.ComputeNonRelocationBasedDependencies(factory);
// Ensure that we track the necessary type symbol if we are working with a constructed type symbol.
// The emitter will ensure we don't emit both, but this allows us assert that we only generate
// relocs to nodes we emit.
dependencyList.Add(factory.NecessaryTypeSymbol(_type), "NecessaryType for constructed type");
DefType closestDefType = _type.GetClosestDefType();
if (TrackInterfaceDispatchMapDepenendency && _type.RuntimeInterfaces.Length > 0)
{
dependencyList.Add(factory.InterfaceDispatchMap(_type), "Interface dispatch map");
}
if (_type.RuntimeInterfaces.Length > 0 && !factory.CompilationModuleGroup.ShouldProduceFullVTable(_type))
{
foreach (var implementedInterface in _type.RuntimeInterfaces)
{
// If the type implements ICastable, the methods are implicitly necessary
if (implementedInterface == factory.ICastableInterface)
{
MethodDesc isInstDecl = implementedInterface.GetKnownMethod("IsInstanceOfInterface", null);
MethodDesc getImplTypeDecl = implementedInterface.GetKnownMethod("GetImplType", null);
MethodDesc isInstMethodImpl = _type.ResolveInterfaceMethodTarget(isInstDecl);
MethodDesc getImplTypeMethodImpl = _type.ResolveInterfaceMethodTarget(getImplTypeDecl);
if (isInstMethodImpl != null)
{
dependencyList.Add(factory.VirtualMethodUse(isInstMethodImpl), "ICastable IsInst");
}
if (getImplTypeMethodImpl != null)
{
dependencyList.Add(factory.VirtualMethodUse(getImplTypeMethodImpl), "ICastable GetImplType");
}
}
// If any of the implemented interfaces have variance, calls against compatible interface methods
// could result in interface methods of this type being used (e.g. IEnumberable<object>.GetEnumerator()
// can dispatch to an implementation of IEnumerable<string>.GetEnumerator()).
// For now, we will not try to optimize this and we will pretend all interface methods are necessary.
bool allInterfaceMethodsAreImplicitlyUsed = false;
if (implementedInterface.HasVariance)
{
TypeDesc interfaceDefinition = implementedInterface.GetTypeDefinition();
for (int i = 0; i < interfaceDefinition.Instantiation.Length; i++)
{
if (((GenericParameterDesc)interfaceDefinition.Instantiation[i]).Variance != 0 &&
!implementedInterface.Instantiation[i].IsValueType)
{
allInterfaceMethodsAreImplicitlyUsed = true;
break;
}
}
}
if (!allInterfaceMethodsAreImplicitlyUsed &&
(_type.IsArray || _type.GetTypeDefinition() == factory.ArrayOfTEnumeratorType) &&
implementedInterface.HasInstantiation)
{
// NOTE: we need to also do this for generic interfaces on arrays because they have a weird casting rule
// that doesn't require the implemented interface to be variant to consider it castable.
// For value types, we only need this when the array is castable by size (int[] and ICollection<uint>),
// or it's a reference type (Derived[] and ICollection<Base>).
TypeDesc elementType = _type.IsArray ? ((ArrayType)_type).ElementType : _type.Instantiation[0];
allInterfaceMethodsAreImplicitlyUsed =
CastingHelper.IsArrayElementTypeCastableBySize(elementType) ||
(elementType.IsDefType && !elementType.IsValueType);
}
if (allInterfaceMethodsAreImplicitlyUsed)
{
foreach (var interfaceMethod in implementedInterface.GetAllMethods())
{
if (interfaceMethod.Signature.IsStatic)
{
continue;
}
// Generic virtual methods are tracked by an orthogonal mechanism.
if (interfaceMethod.HasInstantiation)
{
continue;
}
MethodDesc implMethod = closestDefType.ResolveInterfaceMethodToVirtualMethodOnType(interfaceMethod);
if (implMethod != null)
{
dependencyList.Add(factory.VirtualMethodUse(interfaceMethod), "Variant interface method");
dependencyList.Add(factory.VirtualMethodUse(implMethod), "Variant interface method");
}
}
}
}
}
if (_type.IsArray)
{
// Array EEType depends on System.Array's virtuals. Array EETypes don't point to
// their base type (i.e. there's no reloc based dependency making this "just work").
dependencyList.Add(factory.ConstructedTypeSymbol(_type.BaseType), "Array base type");
}
dependencyList.Add(factory.VTable(_type), "VTable");
if (closestDefType.HasGenericDictionarySlot())
{
// Add a dependency on the template for this type, if the canonical type should be generated into this binary.
DefType templateType = GenericTypesTemplateMap.GetActualTemplateTypeForType(factory, _type.ConvertToCanonForm(CanonicalFormKind.Specific));
if (templateType.IsCanonicalSubtype(CanonicalFormKind.Any) && !factory.NecessaryTypeSymbol(templateType).RepresentsIndirectionCell)
{
dependencyList.Add(factory.NativeLayout.TemplateTypeLayout(templateType), "Template Type Layout");
}
}
// Generated type contains generic virtual methods that will get added to the GVM tables
if (TypeGVMEntriesNode.TypeNeedsGVMTableEntries(_type))
{
dependencyList.Add(new DependencyListEntry(factory.TypeGVMEntries(_type), "Type with generic virtual methods"));
}
if (factory.TypeSystemContext.HasLazyStaticConstructor(_type))
{
// The fact that we generated an EEType means that someone can call RuntimeHelpers.RunClassConstructor.
// We need to make sure this is possible.
dependencyList.Add(new DependencyListEntry(factory.TypeNonGCStaticsSymbol((MetadataType)_type), "Class constructor"));
}
return(dependencyList);
}
protected override DependencyList ComputeNonRelocationBasedDependencies(NodeFactory factory)
{
DependencyList dependencyList = base.ComputeNonRelocationBasedDependencies(factory);
DefType closestDefType = _type.GetClosestDefType();
if (_type.RuntimeInterfaces.Length > 0)
{
dependencyList.Add(factory.InterfaceDispatchMap(_type), "Interface dispatch map");
foreach (var implementedInterface in _type.RuntimeInterfaces)
{
// If the type implements ICastable, the methods are implicitly necessary
if (implementedInterface == factory.ICastableInterface)
{
MethodDesc isInstDecl = implementedInterface.GetKnownMethod("IsInstanceOfInterface", null);
MethodDesc getImplTypeDecl = implementedInterface.GetKnownMethod("GetImplType", null);
MethodDesc isInstMethodImpl = _type.ResolveInterfaceMethodTarget(isInstDecl);
MethodDesc getImplTypeMethodImpl = _type.ResolveInterfaceMethodTarget(getImplTypeDecl);
if (isInstMethodImpl != null)
{
dependencyList.Add(factory.VirtualMethodUse(isInstMethodImpl), "ICastable IsInst");
}
if (getImplTypeMethodImpl != null)
{
dependencyList.Add(factory.VirtualMethodUse(getImplTypeMethodImpl), "ICastable GetImplType");
}
}
// If any of the implemented interfaces have variance, calls against compatible interface methods
// could result in interface methods of this type being used (e.g. IEnumberable<object>.GetEnumerator()
// can dispatch to an implementation of IEnumerable<string>.GetEnumerator()).
// For now, we will not try to optimize this and we will pretend all interface methods are necessary.
if (implementedInterface.HasVariance)
{
foreach (var interfaceMethod in implementedInterface.GetAllMethods())
{
if (interfaceMethod.Signature.IsStatic)
{
continue;
}
MethodDesc implMethod = closestDefType.ResolveInterfaceMethodToVirtualMethodOnType(interfaceMethod);
if (implMethod != null)
{
dependencyList.Add(factory.VirtualMethodUse(interfaceMethod), "Variant interface method");
dependencyList.Add(factory.VirtualMethodUse(implMethod), "Variant interface method");
}
}
}
}
}
if (_type.IsArray)
{
// Array EEType depends on System.Array's virtuals. Array EETypes don't point to
// their base type (i.e. there's no reloc based dependency making this "just work").
dependencyList.Add(factory.ConstructedTypeSymbol(_type.BaseType), "Array base type");
}
dependencyList.Add(factory.VTable(_type), "VTable");
if (closestDefType.HasGenericDictionarySlot())
{
// Generic dictionary pointer is part of the vtable and as such it gets only laid out
// at the final data emission phase. We need to report it as a non-relocation dependency.
dependencyList.Add(factory.TypeGenericDictionary(closestDefType), "Type generic dictionary");
}
// Generated type contains generic virtual methods that will get added to the GVM tables
if (TypeGVMEntriesNode.TypeNeedsGVMTableEntries(_type))
{
dependencyList.Add(new DependencyListEntry(factory.TypeGVMEntries(_type), "Type with generic virtual methods"));
}
return(dependencyList);
}
protected override DependencyList ComputeNonRelocationBasedDependencies(NodeFactory factory)
{
DependencyList dependencyList = base.ComputeNonRelocationBasedDependencies(factory);
// Ensure that we track the necessary type symbol if we are working with a constructed type symbol.
// The emitter will ensure we don't emit both, but this allows us assert that we only generate
// relocs to nodes we emit.
dependencyList.Add(factory.NecessaryTypeSymbol(_type), "NecessaryType for constructed type");
DefType closestDefType = _type.GetClosestDefType();
if (_type.RuntimeInterfaces.Length > 0)
{
if (TrackInterfaceDispatchMapDepenendency)
{
dependencyList.Add(factory.InterfaceDispatchMap(_type), "Interface dispatch map");
}
foreach (var implementedInterface in _type.RuntimeInterfaces)
{
// If the type implements ICastable, the methods are implicitly necessary
if (implementedInterface == factory.ICastableInterface)
{
MethodDesc isInstDecl = implementedInterface.GetKnownMethod("IsInstanceOfInterface", null);
MethodDesc getImplTypeDecl = implementedInterface.GetKnownMethod("GetImplType", null);
MethodDesc isInstMethodImpl = _type.ResolveInterfaceMethodTarget(isInstDecl);
MethodDesc getImplTypeMethodImpl = _type.ResolveInterfaceMethodTarget(getImplTypeDecl);
if (isInstMethodImpl != null)
{
dependencyList.Add(factory.VirtualMethodUse(isInstMethodImpl), "ICastable IsInst");
}
if (getImplTypeMethodImpl != null)
{
dependencyList.Add(factory.VirtualMethodUse(getImplTypeMethodImpl), "ICastable GetImplType");
}
}
// If any of the implemented interfaces have variance, calls against compatible interface methods
// could result in interface methods of this type being used (e.g. IEnumberable<object>.GetEnumerator()
// can dispatch to an implementation of IEnumerable<string>.GetEnumerator()).
// For now, we will not try to optimize this and we will pretend all interface methods are necessary.
// NOTE: we need to also do this for generic interfaces on arrays because they have a weird casting rule
// that doesn't require the implemented interface to be variant to consider it castable.
if (implementedInterface.HasVariance || (_type.IsArray && implementedInterface.HasInstantiation))
{
foreach (var interfaceMethod in implementedInterface.GetAllMethods())
{
if (interfaceMethod.Signature.IsStatic)
{
continue;
}
// Generic virtual methods are tracked by an orthogonal mechanism.
if (interfaceMethod.HasInstantiation)
{
continue;
}
MethodDesc implMethod = closestDefType.ResolveInterfaceMethodToVirtualMethodOnType(interfaceMethod);
if (implMethod != null)
{
dependencyList.Add(factory.VirtualMethodUse(interfaceMethod), "Variant interface method");
dependencyList.Add(factory.VirtualMethodUse(implMethod), "Variant interface method");
}
}
}
}
}
if (_type.IsArray)
{
// Array EEType depends on System.Array's virtuals. Array EETypes don't point to
// their base type (i.e. there's no reloc based dependency making this "just work").
dependencyList.Add(factory.ConstructedTypeSymbol(_type.BaseType), "Array base type");
}
dependencyList.Add(factory.VTable(_type), "VTable");
if (closestDefType.HasGenericDictionarySlot())
{
// Add a dependency on the template for this type, if the canonical type should be generated into this binary.
DefType templateType = GenericTypesTemplateMap.GetActualTemplateTypeForType(factory, _type.ConvertToCanonForm(CanonicalFormKind.Specific));
if (templateType.IsCanonicalSubtype(CanonicalFormKind.Any) && !factory.NecessaryTypeSymbol(templateType).RepresentsIndirectionCell)
{
dependencyList.Add(factory.NativeLayout.TemplateTypeLayout(templateType), "Template Type Layout");
}
}
// Generated type contains generic virtual methods that will get added to the GVM tables
if (TypeGVMEntriesNode.TypeNeedsGVMTableEntries(_type))
{
dependencyList.Add(new DependencyListEntry(factory.TypeGVMEntries(_type), "Type with generic virtual methods"));
}
if (factory.TypeSystemContext.HasLazyStaticConstructor(_type))
{
// The fact that we generated an EEType means that someone can call RuntimeHelpers.RunClassConstructor.
// We need to make sure this is possible.
dependencyList.Add(new DependencyListEntry(factory.TypeNonGCStaticsSymbol((MetadataType)_type), "Class constructor"));
}
// Dependencies of the StaticsInfoHashTable and the ReflectionFieldAccessMap
if (_type is MetadataType)
{
MetadataType metadataType = (MetadataType)_type;
// NOTE: The StaticsInfoHashtable entries need to reference the gc and non-gc static nodes through an indirection cell.
// The StaticsInfoHashtable entries only exist for static fields on generic types.
if (metadataType.GCStaticFieldSize.AsInt > 0)
{
ISymbolNode gcStatics = factory.TypeGCStaticsSymbol(metadataType);
dependencyList.Add(_type.HasInstantiation ? factory.Indirection(gcStatics) : gcStatics, "GC statics indirection for StaticsInfoHashtable");
}
if (metadataType.NonGCStaticFieldSize.AsInt > 0)
{
ISymbolNode nonGCStatic = factory.TypeNonGCStaticsSymbol(metadataType);
if (_type.HasInstantiation)
{
// The entry in the StaticsInfoHashtable points at the begining of the static fields data, so we need to add
// the cctor context offset to the indirection cell.
int cctorOffset = 0;
if (factory.TypeSystemContext.HasLazyStaticConstructor(metadataType))
{
cctorOffset += NonGCStaticsNode.GetClassConstructorContextStorageSize(factory.TypeSystemContext.Target, metadataType);
}
nonGCStatic = factory.Indirection(nonGCStatic, cctorOffset);
}
dependencyList.Add(nonGCStatic, "Non-GC statics indirection for StaticsInfoHashtable");
}
// TODO: TLS dependencies
}
return(dependencyList);
}
