public TypeRef(TypeRef parent, TypeKind kind)
{
Inner = parent;
Kind = kind;
TypeDef = parent.TypeDef;
KindsPath = new List <TypeKind>(parent.KindsPath);
KindsPath.Add(kind);
// for this constructor we should have only List or NotNull kinds
switch (Kind)
{
case TypeKind.NonNull:
Rank = parent.Rank;
break;
case TypeKind.List:
Rank = parent.Rank + 1;
break;
default:
throw new Exception($"FATAL: Invalid type kind '{kind}', expected List or NotNull."); // should never happen
}
Name = this.GetTypeRefName();
IsList = kind == TypeKind.List || parent.Kind == TypeKind.List;
ClrType = this.GetClrType();
}
public TypeRef(TypeDefBase typeDef)
{
TypeDef = typeDef;
Kind = TypeDef.Kind;
Name = this.GetTypeRefName();
KindsPath = new[] { Kind };
ClrType = this.GetClrType();
}
public static bool IsDataType(this TypeDefBase typeDef)
{
if (typeDef is ComplexTypeDef cpxTypeDef)
{
return(cpxTypeDef.TypeRole == TypeRole.Data);
}
return(true); // non-object types: Scalars, enums, input types
}
public static bool IsSchemaType(this TypeDefBase typeDef)
{
switch (typeDef.TypeRole)
{
case ObjectTypeRole.ModuleMutation:
case ObjectTypeRole.ModuleQuery:
case ObjectTypeRole.ModuleSubscription:
return(false);
default:
return(true);
}
}
public static bool IsComplexReturnType(this TypeDefBase typeDef)
{
switch (typeDef.Kind)
{
case TypeKind.Object:
case TypeKind.Interface:
case TypeKind.Union:
return(true);
default:
return(false);
}
}
public static bool IsModuleTransientType(this TypeDefBase typeDef)
{
var cpxTypeDef = typeDef as ComplexTypeDef;
if (cpxTypeDef == null)
{
return(false);
}
switch (cpxTypeDef.TypeRole)
{
case TypeRole.ModuleMutation:
case TypeRole.ModuleQuery:
case TypeRole.ModuleSubscription: return(true);
default: return(false);
}
}
public static TypeRef GetCreateTypeRef(this TypeDefBase typeDef, IList <TypeKind> kinds)
{
var typeRef = typeDef.FindTypeRef(kinds);
if (typeRef != null)
{
return(typeRef);
}
// no existing match; create new one; first find/create its parent, recursively
// remove last kind in list, but remember it
var lastKind = kinds.Last();
var parentKinds = kinds.Take(kinds.Count - 1).ToList();
// At some point we must hit the exising TypeRef - either typeDef.typeRefNull or TypeRefNotNull
var parent = typeDef.GetCreateTypeRef(parentKinds);
typeRef = new TypeRef(parent, lastKind);
typeDef.TypeRefs.Add(typeRef);
return(typeRef);
}
public static bool IsEnumFlagArray(this TypeDefBase typeDef)
{
return(typeDef.Kind == TypeKind.Enum && (typeDef is EnumTypeDef etd && etd.IsFlagSet));
}
public static TypeRef FindTypeRef(this TypeDefBase typeDef, IList <TypeKind> kinds)
{
return(typeDef.TypeRefs.FirstOrDefault(tr => tr.KindsPath.Matches(kinds)));
}