C++ (Cpp) CAstArrayDesignator::GetType Examples

Example #1

File: parser.cpp Project: cseteram/Eggompilers

CAstDesignator* CParser::qualident(CAstScope *s)
{
  //
  // qualident ::= ident { "[" expression "]" }
  //
  CToken t;

  // qualident -> ident ...
  CAstDesignator *id = ident(s);

  t = _scanner->Peek();
  if (t.GetType() != tLBrak)
    return id;

  const CToken saveToken = id->GetToken();
  const CSymbol* saveSymbol = id->GetSymbol();
  CAstArrayDesignator *arrayId = new CAstArrayDesignator(saveToken, saveSymbol);

  if (!arrayId->GetType() || !arrayId->GetType()->IsArray()) {
    SetError(t, "access with index which is actually not an array");
    return id;
  }

  free(id);

  while (t.GetType() == tLBrak) {
    // qualident -> ... "[" ...
    Consume(tLBrak);

    // qualident -> ... expression ...
    arrayId->AddIndex(expression(s));

    // qualident -> ... "]" ...
    Consume(tRBrak);
    t = _scanner->Peek();
  }

  arrayId->IndicesComplete();
  return arrayId;
}