[clang] [clang-format] Keep C++20 module/import decls on a single line (PR #199459)

[Björn Schäpers via cfe-commits]

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@@ -1350,40 +1351,60 @@ static bool isC78ParameterDecl(const FormatToken *Tok, const FormatToken *Next,
   return Tok->Previous && Tok->Previous->isOneOf(tok::l_paren, tok::comma);
 }
 
-bool UnwrappedLineParser::parseModuleImport() {
-  assert(FormatTok->is(Keywords.kw_import) && "'import' expected");
+bool UnwrappedLineParser::parseModuleDecl() {
+  assert(IsCpp);
+  assert(FormatTok->is(Keywords.kw_module));
 
-  if (auto Token = Tokens->peekNextToken(/*SkipComment=*/true);
-      !Token->Tok.getIdentifierInfo() &&
-      Token->isNoneOf(tok::colon, tok::less, tok::string_literal)) {
+  if (Style.Language == FormatStyle::LK_C ||
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HazardyKnusperkeks wrote:

What about ObjC, that is also covered in `IsCpp` isn't it?

https://github.com/llvm/llvm-project/pull/199459