C++ (Cpp) Sema::LookupName 예제들

예제 #1

파일: SemaCoroutine.cpp 프로젝트: bgabor666/clang

static ExprResult buildOperatorCoawaitLookupExpr(Sema &SemaRef, Scope *S,
                                                 SourceLocation Loc) {
  DeclarationName OpName =
      SemaRef.Context.DeclarationNames.getCXXOperatorName(OO_Coawait);
  LookupResult Operators(SemaRef, OpName, SourceLocation(),
                         Sema::LookupOperatorName);
  SemaRef.LookupName(Operators, S);

  assert(!Operators.isAmbiguous() && "Operator lookup cannot be ambiguous");
  const auto &Functions = Operators.asUnresolvedSet();
  bool IsOverloaded =
      Functions.size() > 1 ||
      (Functions.size() == 1 && isa<FunctionTemplateDecl>(*Functions.begin()));
  Expr *CoawaitOp = UnresolvedLookupExpr::Create(
      SemaRef.Context, /*NamingClass*/ nullptr, NestedNameSpecifierLoc(),
      DeclarationNameInfo(OpName, Loc), /*RequiresADL*/ true, IsOverloaded,
      Functions.begin(), Functions.end());
  assert(CoawaitOp);
  return CoawaitOp;
}