示例#1
0
void Sema::PopPragmaVisibility(bool IsNamespaceEnd, SourceLocation EndLoc) {
  if (!VisContext) {
    Diag(EndLoc, diag::err_pragma_pop_visibility_mismatch);
    return;
  }

  // Pop visibility from stack
  VisStack *Stack = static_cast<VisStack*>(VisContext);

  const std::pair<unsigned, SourceLocation> *Back = &Stack->back();
  bool StartsWithPragma = Back->first != NoVisibility;
  if (StartsWithPragma && IsNamespaceEnd) {
    Diag(Back->second, diag::err_pragma_push_visibility_mismatch);
    Diag(EndLoc, diag::note_surrounding_namespace_ends_here);

    // For better error recovery, eat all pushes inside the namespace.
    do {
      Stack->pop_back();
      Back = &Stack->back();
      StartsWithPragma = Back->first != NoVisibility;
    } while (StartsWithPragma);
  } else if (!StartsWithPragma && !IsNamespaceEnd) {
    Diag(EndLoc, diag::err_pragma_pop_visibility_mismatch);
    Diag(Back->second, diag::note_surrounding_namespace_starts_here);
    return;
  }

  Stack->pop_back();
  // To simplify the implementation, never keep around an empty stack.
  if (Stack->empty())
    FreeVisContext();
}
示例#2
0
void Sema::PopPragmaVisibility() {
    // Pop visibility from stack, if there is one on the stack.
    if (VisContext) {
        VisStack *Stack = static_cast<VisStack*>(VisContext);

        Stack->pop_back();
        // To simplify the implementation, never keep around an empty stack.
        if (Stack->empty())
            FreeVisContext();
    }
    // FIXME: Add diag for pop without push.
}