@Specialization(guards = "isRubyString(index)")
public Object getIndexString(DynamicObject matchData, DynamicObject index, NotProvided length) {
CompilerDirectives.transferToInterpreter();
try {
final int i = getBackrefNumber(matchData, Layouts.STRING.getByteList(index));
return getIndex(matchData, i, NotProvided.INSTANCE);
} catch (final ValueException e) {
CompilerDirectives.transferToInterpreter();
throw new RaiseException(
getContext()
.getCoreLibrary()
.indexError(
String.format("undefined group name reference: %s", index.toString()), this));
}
}
@Specialization
public DynamicObject exceptionErrnoError(DynamicObject message, int errno) {
return getContext().getCoreLibrary().errnoError(errno, message.toString(), this);
}