/// \returns The instantiated template, or null on error.
QualType BuildStdInitializerList(QualType Element, SourceLocation Loc);
+ /// \brief Determine whether Ctor is an initializer-list constructor, as
+ /// defined in [dcl.init.list]p2.
+ bool isInitListConstructor(const CXXConstructorDecl *Ctor);
+
Decl *ActOnUsingDirective(Scope *CurScope,
SourceLocation UsingLoc,
SourceLocation NamespcLoc,
CheckTemplateIdType(TemplateName(StdInitializerList), Loc, Args));
}
+bool Sema::isInitListConstructor(const CXXConstructorDecl* Ctor) {
+ // C++ [dcl.init.list]p2:
+ // A constructor is an initializer-list constructor if its first parameter
+ // is of type std::initializer_list<E> or reference to possibly cv-qualified
+ // std::initializer_list<E> for some type E, and either there are no other
+ // parameters or else all other parameters have default arguments.
+ if (Ctor->getNumParams() < 1 ||
+ (Ctor->getNumParams() > 1 && !Ctor->getParamDecl(1)->hasDefaultArg()))
+ return false;
+
+ QualType ArgType = Ctor->getParamDecl(0)->getType();
+ if (const ReferenceType *RT = ArgType->getAs<ReferenceType>())
+ ArgType = RT->getPointeeType().getUnqualifiedType();
+
+ return isStdInitializerList(ArgType, 0);
+}
+
/// \brief Determine whether a using statement is in a context where it will be
/// apply in all contexts.
static bool IsUsingDirectiveInToplevelContext(DeclContext *CurContext) {