Add Sema::isInitListConstructor. This will be needed for upcoming work.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148354 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDeclCXX.cpp b/lib/Sema/SemaDeclCXX.cpp
index 2d47e0e..9693c18 100644
--- a/lib/Sema/SemaDeclCXX.cpp
+++ b/lib/Sema/SemaDeclCXX.cpp
@@ -5877,6 +5877,23 @@
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) {