Comment parsing: add CommentOptions to allow specifying custom comment block commands

Add an ability to specify custom documentation block comment commands via a new
class CommentOptions.  The intention is that this class will hold future
customizations for comment parsing, including defining documentation comments
with specific numbers of parameters, etc.

CommentOptions instance is a member of LangOptions.

CommentOptions is controlled by a new command-line parameter
-fcomment-block-commands=Foo,Bar,Baz.

llvm-svn: 175892

1 files changed, 10 insertions, 0 deletions

diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index 09c5bbb63bd..b0e36e2e0df 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -1057,6 +1057,16 @@ void ASTWriter::WriteControlBlock(Preprocessor &PP, ASTContext &Context,
   
   Record.push_back(LangOpts.CurrentModule.size());
   Record.append(LangOpts.CurrentModule.begin(), LangOpts.CurrentModule.end());
+
+  // Comment options.
+  Record.push_back(LangOpts.CommentOpts.BlockCommandNames.size());
+  for (CommentOptions::BlockCommandNamesTy::const_iterator
+           I = LangOpts.CommentOpts.BlockCommandNames.begin(),
+           IEnd = LangOpts.CommentOpts.BlockCommandNames.end();
+       I != IEnd; ++I) {
+    AddString(*I, Record);
+  }
+
   Stream.EmitRecord(LANGUAGE_OPTIONS, Record);
 
   // Target options.