public static bool IsTypeOf(this ITypeSymbol symbol, WellKnownType wellKnownType)
{
if (wellKnownType.TryGetSpecialType(out var specialType))
{
// Make sure checking the special type is the same as checking the metadata string names.
Debug.Assert(symbol.IsTypeOf(wellKnownType.GetNamespace(), wellKnownType.GetName()) == (symbol.SpecialType == specialType));
return(symbol.SpecialType == specialType);
}
var(Namespace, Name) = wellKnownType.GetNamespaceAndName();
return(symbol.IsTypeOf(Namespace, Name));
}
public static TypeDefinition?FindPredefinedType(WellKnownType type, LinkContext context)
{
var(ns, name) = type.GetNamespaceAndName();
foreach (var corlibName in corlibNames)
{
AssemblyDefinition?corlib = context.TryResolve(corlibName);
if (corlib == null)
{
continue;
}
TypeDefinition resolvedType = corlib.MainModule.GetType(ns, name);
// The assembly could be a facade with type forwarders, in which case we don't find the type in this assembly.
if (resolvedType != null)
{
return(resolvedType);
}
}
return(null);
}
public static bool IsTypeOf(this TypeReference tr, WellKnownType type)
{
var(@namespace, name) = type.GetNamespaceAndName();
return(tr.IsTypeOf(@namespace, name));
}