C++ (Cpp) NamedDecl::isTemplateParameterPack示例

示例#1

TemplateParameterList::TemplateParameterList(SourceLocation TemplateLoc,
                                             SourceLocation LAngleLoc,
                                             NamedDecl **Params, unsigned NumParams,
                                             SourceLocation RAngleLoc)
  : TemplateLoc(TemplateLoc), LAngleLoc(LAngleLoc), RAngleLoc(RAngleLoc),
    NumParams(NumParams), ContainsUnexpandedParameterPack(false) {
  assert(this->NumParams == NumParams && "Too many template parameters");
  for (unsigned Idx = 0; Idx < NumParams; ++Idx) {
    NamedDecl *P = Params[Idx];
    begin()[Idx] = P;

    if (!P->isTemplateParameterPack()) {
      if (NonTypeTemplateParmDecl *NTTP = dyn_cast<NonTypeTemplateParmDecl>(P))
        if (NTTP->getType()->containsUnexpandedParameterPack())
          ContainsUnexpandedParameterPack = true;

      if (TemplateTemplateParmDecl *TTP = dyn_cast<TemplateTemplateParmDecl>(P))
        if (TTP->getTemplateParameters()->containsUnexpandedParameterPack())
          ContainsUnexpandedParameterPack = true;

      // FIXME: If a default argument contains an unexpanded parameter pack, the
      // template parameter list does too.
    }
  }
}