/// <summary>
/// See if a type reference refers to a type definition that is compiler generated.
/// </summary>
/// <param name="typeReference"></param>
/// <returns></returns>
internal static bool IsCompilerGenerated(ITypeReference /*!*/ typeReference)
{
if (AttributeHelper.Contains(typeReference.ResolvedType.Attributes, typeReference.PlatformType.SystemRuntimeCompilerServicesCompilerGeneratedAttribute))
{
return(true);
}
IGenericTypeInstanceReference genericTypeInstanceReference = typeReference as IGenericTypeInstanceReference;
if (genericTypeInstanceReference != null && IsCompilerGenerated(genericTypeInstanceReference.GenericType))
{
return(true);
}
ISpecializedNestedTypeReference specializedNestedType = typeReference as ISpecializedNestedTypeReference;
if (specializedNestedType != null && IsCompilerGenerated(specializedNestedType.UnspecializedVersion))
{
return(true);
}
ISpecializedNestedTypeDefinition specializedNestedTypeDefinition = typeReference as ISpecializedNestedTypeDefinition;
if (specializedNestedTypeDefinition != null && IsCompilerGenerated(specializedNestedTypeDefinition.UnspecializedVersion))
{
return(true);
}
INestedTypeReference nestedTypeReference = UnspecializedMethods.AsUnspecializedNestedTypeReference(typeReference);
if (nestedTypeReference != null)
{
return(IsCompilerGenerated(nestedTypeReference.ContainingType));
}
return(false);
}
// Returns true if we need to look at the children, false otherwise.
private bool VisitTypeReference(ITypeReference typeReference)
{
if (!this.alreadySeen.Add(typeReference))
{
if (!this.typeReferenceNeedsToken)
{
return(false);
}
this.typeReferenceNeedsToken = false;
if (!this.alreadyHasToken.Add(typeReference))
{
return(false);
}
RecordTypeReference(typeReference);
return(false);
}
INestedTypeReference /*?*/ nestedTypeReference = typeReference.AsNestedTypeReference;
if (this.typeReferenceNeedsToken || nestedTypeReference != null ||
(typeReference.TypeCode(Context) == PrimitiveTypeCode.NotPrimitive && typeReference.AsNamespaceTypeReference != null))
{
ISpecializedNestedTypeReference /*?*/ specializedNestedTypeReference = (nestedTypeReference == null ? null :
nestedTypeReference.AsSpecializedNestedTypeReference);
if (specializedNestedTypeReference != null)
{
INestedTypeReference unspecializedNestedTypeReference = specializedNestedTypeReference.UnspecializedVersion;
if (this.alreadyHasToken.Add(unspecializedNestedTypeReference))
{
RecordTypeReference(unspecializedNestedTypeReference);
}
}
if (this.typeReferenceNeedsToken && this.alreadyHasToken.Add(typeReference))
{
RecordTypeReference(typeReference);
}
if (nestedTypeReference != null)
{
this.typeReferenceNeedsToken = (typeReference.AsSpecializedNestedTypeReference == null);
this.Visit(nestedTypeReference.GetContainingType(Context));
}
}
//This code was in CCI, but appears wrong to me. There is no need to visit attributes of types that are
//being referenced, only those being defined. This code causes additional spurious typerefs and memberrefs to be
//emitted. If the attributes can't be resolved, it causes a NullReference.
//
//if ((typeReference.AsTypeDefinition(Context) == null))
//{
// this.Visit(typeReference.GetAttributes(Context));
//}
this.typeReferenceNeedsToken = false;
return(true);
}
/// <summary>
/// Get the reference of a method in the closure class as used by other methods in the same class.
/// </summary>
private IMethodReference GetReferenceOfMethodUsedByPeers(IMethodDefinition method)
{
IMethodReference methodReference = null;
ITypeReference typeReference = this.ClosureDefinitionReference;
ISpecializedNestedTypeReference specializedNestedTypeRef = typeReference as ISpecializedNestedTypeReference;
IGenericTypeInstanceReference genericInstanceRef = typeReference as IGenericTypeInstanceReference;
if (specializedNestedTypeRef != null || genericInstanceRef != null)
{
methodReference = new SpecializedMethodReference()
{
ContainingType = typeReference,
GenericParameterCount = method.GenericParameterCount,
InternFactory = this.host.InternFactory,
UnspecializedVersion = method,
Type = method.Type,
Name = method.Name,
CallingConvention = method.CallingConvention,
Parameters = method.ParameterCount == 0 ? null : new List <IParameterTypeInformation>(((IMethodReference)method).Parameters),
ExtraParameters = null,
ReturnValueIsByRef = method.ReturnValueIsByRef,
ReturnValueIsModified = method.ReturnValueIsModified,
Attributes = null,
};
}
else
{
methodReference = method;
}
return(methodReference);
}
public override void Visit(ISpecializedNestedTypeReference specializedNestedTypeReference)
{
if (Process(specializedNestedTypeReference))
{
visitor.Visit(specializedNestedTypeReference);
}
base.Visit(specializedNestedTypeReference);
}
/// <summary>
/// Copies specialized nested type references since their containing types may involve type parameters, but
/// leaves other kinds of nested type references alone.
/// </summary>
/// <param name="nestedTypeReference">The nested type reference.</param>
public override INestedTypeReference Visit(INestedTypeReference nestedTypeReference)
{
ISpecializedNestedTypeReference /*?*/ specializedNestedTypeReference = nestedTypeReference as ISpecializedNestedTypeReference;
if (specializedNestedTypeReference != null)
{
return(this.Visit(specializedNestedTypeReference));
}
return(nestedTypeReference);
}
public static INamedTypeReference CanonicalizeTypeReference(ITypeReference type)
{
while (type != null)
{
IModifiedTypeReference modifiedType = type as IModifiedTypeReference;
IPointerTypeReference ptrType = type as IPointerTypeReference;
IManagedPointerType refType = type as IManagedPointerType;
IArrayTypeReference arrType = type as IArrayTypeReference;
IGenericTypeInstanceReference genType = type as IGenericTypeInstanceReference;
ISpecializedNestedTypeReference nestedType = type as ISpecializedNestedTypeReference;
// TODO: Why doesn't ISpecializedNestedTypeDefinition derive from ISpecializedNestedTypeReference?
ISpecializedNestedTypeDefinition nestedTypeDef = type as ISpecializedNestedTypeDefinition;
if (modifiedType != null)
{
type = modifiedType.UnmodifiedType;
}
else if (ptrType != null)
{
type = ptrType.TargetType;
}
else if (refType != null)
{
type = refType.TargetType;
}
else if (arrType != null)
{
type = arrType.ElementType;
}
else if (genType != null)
{
type = genType.GenericType;
}
else if (nestedType != null)
{
type = nestedType.UnspecializedVersion;
}
else if (nestedTypeDef != null)
{
type = nestedTypeDef.UnspecializedVersion;
}
else /* ITypeDefinition */
{
break;
}
}
return(type as INamedTypeReference);
}
public static ITypeReference UnWrap(this ITypeReference reference)
{
IPointerTypeReference pointer = reference as IPointerTypeReference;
if (pointer != null)
{
return(pointer.TargetType.UnWrap());
}
IArrayTypeReference array = reference as IArrayTypeReference;
if (array != null)
{
return(array.ElementType.UnWrap());
}
IModifiedTypeReference modified = reference as IModifiedTypeReference;
if (modified != null)
{
return(modified.UnmodifiedType.UnWrap());
}
ISpecializedNestedTypeReference specialized = reference as ISpecializedNestedTypeReference;
if (specialized != null)
{
return(specialized.UnspecializedVersion.UnWrap());
}
IGenericTypeInstanceReference instantiation = reference as IGenericTypeInstanceReference;
if (instantiation != null)
{
return(instantiation.GenericType.UnWrap());
}
Contract.Assert(reference is INamedTypeReference ||
reference is INestedTypeReference ||
reference is INamespaceTypeReference ||
reference is IGenericTypeParameterReference ||
reference is IGenericMethodParameterReference ||
reference is IFunctionPointerTypeReference ||
reference is IManagedPointerType,
string.Format("Unexpected type reference that we may need to unwrap {0}", (reference != null ? reference.GetType().FullName : "null")));
return(reference);
}
public static ITypeReference UnWrap(this ITypeReference reference)
{
IPointerTypeReference pointer = reference as IPointerTypeReference;
if (pointer != null)
{
return(pointer.TargetType.UnWrap());
}
IArrayTypeReference array = reference as IArrayTypeReference;
if (array != null)
{
return(array.ElementType.UnWrap());
}
IModifiedTypeReference modified = reference as IModifiedTypeReference;
if (modified != null)
{
return(modified.UnmodifiedType.UnWrap());
}
ISpecializedNestedTypeReference specialized = reference as ISpecializedNestedTypeReference;
if (specialized != null)
{
return(specialized.UnspecializedVersion.UnWrap());
}
IGenericTypeInstanceReference instantiation = reference as IGenericTypeInstanceReference;
if (instantiation != null)
{
return(instantiation.GenericType.UnWrap());
}
Contract.Assert(reference is INamedTypeReference ||
reference is INestedTypeReference ||
reference is INamespaceTypeReference ||
reference is IGenericTypeParameterReference ||
reference is IGenericMethodParameterReference ||
reference is IFunctionPointerTypeReference,
string.Format(CultureInfo.CurrentCulture, LocalizedStrings.UnexpectedTypeReference, (reference?.GetType()?.FullName ?? "null")));
return(reference);
}
public static T UnWrapMember <T>(this T member)
where T : ITypeMemberReference
{
IGenericMethodInstanceReference genericMethod = member as IGenericMethodInstanceReference;
if (genericMethod != null)
{
return((T)genericMethod.GenericMethod.UnWrapMember());
}
ISpecializedNestedTypeReference type = member as ISpecializedNestedTypeReference;
if (type != null)
{
return((T)type.UnspecializedVersion.UnWrapMember());
}
ISpecializedMethodReference method = member as ISpecializedMethodReference;
if (method != null)
{
return((T)method.UnspecializedVersion.UnWrapMember());
}
ISpecializedFieldReference field = member as ISpecializedFieldReference;
if (field != null)
{
return((T)field.UnspecializedVersion.UnWrapMember());
}
ISpecializedPropertyDefinition property = member as ISpecializedPropertyDefinition;
if (property != null)
{
return((T)property.UnspecializedVersion.UnWrapMember());
}
ISpecializedEventDefinition evnt = member as ISpecializedEventDefinition;
if (evnt != null)
{
return((T)evnt.UnspecializedVersion.UnWrapMember());
}
return(member);
}
internal static ITypeReference GetUninstantiatedGenericType(this ITypeReference typeReference, EmitContext context)
{
IGenericTypeInstanceReference genericTypeInstanceReference = typeReference.AsGenericTypeInstanceReference;
if (genericTypeInstanceReference != null)
{
return(genericTypeInstanceReference.GetGenericType(context));
}
ISpecializedNestedTypeReference specializedNestedType = typeReference.AsSpecializedNestedTypeReference;
if (specializedNestedType != null)
{
return(specializedNestedType.GetUnspecializedVersion(context));
}
return(typeReference);
}
/// <summary>
/// Given a field definition in the closure class, get its reference as will be used by the methods in the closure class.
/// </summary>
internal IFieldReference GetReferenceOfFieldUsedByPeers(IFieldDefinition fieldDef)
{
IFieldReference fieldReference = null;
ITypeReference typeReference = this.ClosureDefinitionReference;
ISpecializedNestedTypeReference nestedTypeRef = typeReference as ISpecializedNestedTypeReference;
IGenericTypeInstanceReference genericTypeInstanceRef = typeReference as IGenericTypeInstanceReference;
if (nestedTypeRef != null || genericTypeInstanceRef != null)
{
fieldReference = new SpecializedFieldReference()
{
ContainingType = typeReference,
InternFactory = this.host.InternFactory,
Name = fieldDef.Name,
UnspecializedVersion = fieldDef,
Type = fieldDef.Type
};
}
else
{
fieldReference = fieldDef;
}
return(fieldReference);
}
/// <summary>
/// Performs some computation with the given specialized nested type reference.
/// </summary>
public virtual void Visit(ISpecializedNestedTypeReference specializedNestedTypeReference)
{
}
/// <summary>
/// Traverses the specialized method reference.
/// </summary>
public void Traverse(ISpecializedNestedTypeReference specializedNestedTypeReference)
{
Contract.Requires(specializedNestedTypeReference != null);
if (!this.objectsThatHaveAlreadyBeenTraversed.Add(specializedNestedTypeReference)) return;
if (this.preorderVisitor != null) this.preorderVisitor.Visit(specializedNestedTypeReference);
if (this.stopTraversal) return;
this.TraverseChildren(specializedNestedTypeReference);
if (this.stopTraversal) return;
if (this.postorderVisitor != null) this.postorderVisitor.Visit(specializedNestedTypeReference);
}
public override void Visit(ISpecializedNestedTypeReference specializedNestedTypeReference)
{
allElements.Add(new InvokInfo(Traverser, "ISpecializedNestedTypeReference", specializedNestedTypeReference));
}
public override void Visit(ISpecializedNestedTypeReference specializedNestedTypeReference)
{
if(Process(specializedNestedTypeReference)){visitor.Visit(specializedNestedTypeReference);}
base.Visit(specializedNestedTypeReference);
}
/// <summary>
/// Rewrites the given specialized nested type reference.
/// </summary>
public virtual INestedTypeReference Rewrite(ISpecializedNestedTypeReference specializedNestedTypeReference)
{
return specializedNestedTypeReference;
}
public void Visit(ISpecializedNestedTypeReference specializedNestedTypeReference)
{
throw new NotImplementedException();
}
/// <summary>
/// Performs some computation with the given specialized nested type reference.
/// </summary>
public virtual void Visit(ISpecializedNestedTypeReference specializedNestedTypeReference)
{
}
public virtual void onMetadataElement(ISpecializedNestedTypeReference specializedNestedTypeReference) { }
/// <summary>
/// Traverses the children of the specialized nested type reference.
/// </summary>
public virtual void TraverseChildren(ISpecializedNestedTypeReference specializedNestedTypeReference)
{
Contract.Requires(specializedNestedTypeReference != null);
this.TraverseChildren((INestedTypeReference)specializedNestedTypeReference);
if (this.stopTraversal) return;
this.Traverse(specializedNestedTypeReference.UnspecializedVersion);
}
public void Visit(ISpecializedNestedTypeReference specializedNestedTypeReference)
{
this.traverser.Traverse(specializedNestedTypeReference);
}
public virtual void onMetadataElement(ISpecializedNestedTypeReference specializedNestedTypeReference)
{
}
/// <summary>
/// Performs some computation with the given specialized nested type reference.
/// </summary>
public void Visit(ISpecializedNestedTypeReference specializedNestedTypeReference)
{
this.Visit((INestedTypeReference)specializedNestedTypeReference);
}
public override void TraverseChildren(ISpecializedNestedTypeReference specializedNestedTypeReference)
{ MethodEnter(specializedNestedTypeReference);
base.TraverseChildren(specializedNestedTypeReference);
MethodExit(); }
public override void TraverseChildren(ISpecializedNestedTypeReference specializedNestedTypeReference)
{
MethodEnter(specializedNestedTypeReference);
base.TraverseChildren(specializedNestedTypeReference);
MethodExit();
}
/// <summary>
/// Traverses the children of the specialized nested type reference.
/// </summary>
public virtual void TraverseChildren(ISpecializedNestedTypeReference specializedNestedTypeReference)
{
this.TraverseChildren((INestedTypeReference)specializedNestedTypeReference);
if (this.stopTraversal) return;
this.Traverse(specializedNestedTypeReference.UnspecializedVersion);
}
