public static SymbolKeyResolution Resolve(SymbolKeyReader reader)
{
var returnRefKind = reader.ReadRefKind();
var returnType = reader.ReadSymbolKey();
using var paramRefKinds = reader.ReadRefKindArray();
using var paramTypes = reader.ReadSymbolKeyArray <ITypeSymbol>();
if (paramTypes.IsDefault || !(returnType.GetAnySymbol() is ITypeSymbol returnTypeSymbol))
{
return(default);
public static SymbolKeyResolution Resolve(SymbolKeyReader reader, out string failureReason)
{
var returnRefKind = reader.ReadRefKind();
var returnType = reader.ReadSymbolKey(out var returnTypeFailureReason);
using var paramRefKinds = reader.ReadRefKindArray();
using var parameterTypes = reader.ReadSymbolKeyArray <ITypeSymbol>(out var parameterTypesFailureReason);
if (returnTypeFailureReason != null)
{
failureReason = $"({nameof(FunctionPointerTypeSymbolKey)} {nameof(returnType)} failed -> {returnTypeFailureReason})";
return(default);
