clang-format: better handle namespace macros

Summary:
Other macros are used to declare namespaces, and should thus be handled
similarly. This is the case for crpcut's TESTSUITE macro, or for
unittest-cpp's SUITE macro:

      TESTSUITE(Foo) {
      TEST(MyFirstTest) {
        assert(0);
      }
      } // TESTSUITE(Foo)

This patch deals with this cases by introducing a new option to specify
lists of namespace macros. Internally, it re-uses the system already in
place for foreach and statement macros, to ensure there is no impact on
performance.

Reviewers: krasimir, djasper, klimek

Reviewed By: klimek

Subscribers: acoomans, cfe-commits, klimek

Tags: #clang

Differential Revision: https://reviews.llvm.org/D37813

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@362740 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 13 insertions, 0 deletions

diff --git a/docs/ClangFormatStyleOptions.rst b/docs/ClangFormatStyleOptions.rst
index 8bd0e9c8f7..1276a41acb 100644
--- a/docs/ClangFormatStyleOptions.rst
+++ b/docs/ClangFormatStyleOptions.rst
@@ -1782,6 +1782,19 @@ the configuration (without a prefix: ``Auto``).
 
 
 
+**NamespaceMacros** (``std::vector<std::string>``)
+  A vector of macros which are used to open namespace blocks.
+
+  These are expected to be macros of the form:
+
+  .. code-block:: c++
+
+    NAMESPACE(<namespace-name>, ...) {
+      <namespace-content>
+    }
+
+  For example: TESTSUITE
+
 **ObjCBinPackProtocolList** (``BinPackStyle``)
   Controls bin-packing Objective-C protocol conformance list
   items into as few lines as possible when they go over ``ColumnLimit``.