[clang-tools-extra] [clang-tidy][C++20] Add support for aggregate types within modernize-use-emplace (PR #131969)

[Baranov Victor via cfe-commits]

================
@@ -202,19 +202,36 @@ void UseEmplaceCheck::registerMatchers(MatchFinder *Finder) {
   // overloaded functions and template names.
   auto SoughtConstructExpr =
       cxxConstructExpr(
-          unless(anyOf(IsCtorOfSmartPtr, HasInitList, BitFieldAsArgument,
-                       InitializerListAsArgument, NewExprAsArgument,
-                       ConstructingDerived, IsPrivateOrProtectedCtor)))
+          unless(anyOf(hasDeclaration(IsCtorOfSmartPtr), HasInitList,
+                       hasAnyArgument(BitFieldAsArgument),
+                       hasAnyArgument(InitializerListAsArgument),
+                       hasAnyArgument(NewExprAsArgument), ConstructingDerived,
+                       IsPrivateOrProtectedCtor)))
           .bind("ctor");
-  auto HasConstructExpr = has(ignoringImplicit(SoughtConstructExpr));
+
+  auto IsPrimitiveType = hasType(builtinType());
+
+  auto AggregateInitExpr =
+      getLangOpts().CPlusPlus20
+          ? initListExpr(unless(anyOf(HasInitList, has(IsCtorOfSmartPtr),
+                                      has(BitFieldAsArgument),
+                                      has(InitializerListAsArgument),
+                                      has(NewExprAsArgument), IsPrimitiveType)))
+                .bind("agg_init")
+          : unless(anything());
+
+  auto HasConstructExpr =
+      has(ignoringImplicit(anyOf(SoughtConstructExpr, AggregateInitExpr)));
 
   // allow for T{} to be replaced, even if no CTOR is declared
   auto HasConstructInitListExpr = has(initListExpr(
-      initCountLeq(1), anyOf(allOf(has(SoughtConstructExpr),
-                                   has(cxxConstructExpr(argumentCountIs(0)))),
-                             has(cxxBindTemporaryExpr(
-                                 has(SoughtConstructExpr),
-                                 has(cxxConstructExpr(argumentCountIs(0))))))));
+      initCountLeq(1),
+      anyOf(allOf(has(SoughtConstructExpr),
+                  has(cxxConstructExpr(argumentCountIs(0)))),
+            has(cxxBindTemporaryExpr(has(SoughtConstructExpr),
+                                     has(cxxConstructExpr(argumentCountIs(0)))
+
----------------
vbvictor wrote:

unintended line?

https://github.com/llvm/llvm-project/pull/131969