Add sizeof pack

Author: lucic71

cpp2rust/converter/converter.cpp

@@ -3213,6 +3213,14 @@ bool Converter::VisitTypeTraitExpr(clang::TypeTraitExpr *expr) {
   return false;
 }
 
+bool Converter::VisitSizeOfPackExpr(clang::SizeOfPackExpr *expr) {
+  clang::Expr::EvalResult result;
+  ENSURE(expr->EvaluateAsInt(result, ctx_));
+  StrCat(std::to_string(result.Val.getInt().getExtValue()));
+  computed_expr_type_ = ComputedExprType::FreshValue;
+  return false;
+}
+
 bool Converter::VisitOffsetOfExpr(clang::OffsetOfExpr *expr) {
   std::string member_path;
   for (unsigned i = 0; i < expr->getNumComponents(); ++i) {

cpp2rust/converter/converter.h

@@ -369,6 +369,7 @@ class Converter : public clang::RecursiveASTVisitor<Converter> {
   VisitUnaryExprOrTypeTraitExpr(clang::UnaryExprOrTypeTraitExpr *expr);
 
   virtual bool VisitTypeTraitExpr(clang::TypeTraitExpr *expr);
+  virtual bool VisitSizeOfPackExpr(clang::SizeOfPackExpr *expr);
 
   virtual bool VisitOffsetOfExpr(clang::OffsetOfExpr *expr);