C++ Modules TS: Add parsing and some semantic analysis support for

export-declarations. These don't yet have an effect on name visibility;
we still export everything by default.

llvm-svn: 280999

1 files changed, 7 insertions, 1 deletions

diff --git a/clang/lib/Parse/Parser.cpp b/clang/lib/Parse/Parser.cpp
index 0a54ea0..8cc97e5 100644
--- a/clang/lib/Parse/Parser.cpp
+++ b/clang/lib/Parse/Parser.cpp
@@ -770,11 +770,17 @@ Parser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs,
                                               : Sema::PCC_Namespace);
     cutOffParsing();
     return nullptr;
+  case tok::kw_export:
+    if (getLangOpts().ModulesTS) {
+      SingleDecl = ParseExportDeclaration();
+      break;
+    }
+    // This must be 'export template'. Parse it so we can diagnose our lack
+    // of support.
   case tok::kw_using:
   case tok::kw_namespace:
   case tok::kw_typedef:
   case tok::kw_template:
-  case tok::kw_export:    // As in 'export template'
   case tok::kw_static_assert:
   case tok::kw__Static_assert:
     // A function definition cannot start with any of these keywords.