[PATCH] D134700: [clang-format] Fix a bug with C++ `export import <Foo/Bar>`

[Owen Pan via Phabricator via cfe-commits]

owenpan created this revision.
owenpan added reviewers: MyDeveloperDay, HazardyKnusperkeks, curdeius.
owenpan added a project: clang-format.
Herald added a project: All.
owenpan requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

Fixes https://github.com/llvm/llvm-project/issues/57798.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D134700

Files:
  clang/lib/Format/UnwrappedLineParser.cpp
  clang/unittests/Format/FormatTest.cpp


Index: clang/unittests/Format/FormatTest.cpp
===================================================================
--- clang/unittests/Format/FormatTest.cpp
+++ clang/unittests/Format/FormatTest.cpp
@@ -25048,6 +25048,7 @@
   verifyFormat("export module foo.bar;", Style);
   verifyFormat("export module foo.bar:baz;", Style);
   verifyFormat("export import <string_view>;", Style);
+  verifyFormat("export import <Foo/Bar>;", Style);
 
   verifyFormat("export type_name var;", Style);
   verifyFormat("template <class T> export using A = B<T>;", Style);
Index: clang/lib/Format/UnwrappedLineParser.cpp
===================================================================
--- clang/lib/Format/UnwrappedLineParser.cpp
+++ clang/lib/Format/UnwrappedLineParser.cpp
@@ -1634,10 +1634,18 @@
       parseJavaScriptEs6ImportExport();
       return;
     }
-    if (!Style.isCpp())
-      break;
-    // Handle C++ "(inline|export) namespace".
-    [[fallthrough]];
+    if (Style.isCpp()) {
+      nextToken();
+      if (FormatTok->is(Keywords.kw_import)) {
+        parseModuleImport();
+        return;
+      }
+      if (FormatTok->is(tok::kw_namespace)) {
+        parseNamespace();
+        return;
+      }
+    }
+    break;
   case tok::kw_inline:
     nextToken();
     if (FormatTok->is(tok::kw_namespace)) {


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