[Doc parsing] Provide diagnostics for unknown documentation

commands. // rdar://12381408


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181071 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 10 insertions, 4 deletions

diff --git a/lib/AST/CommentLexer.cpp b/lib/AST/CommentLexer.cpp
index 1194520bf3..82efac64ff 100644
--- a/lib/AST/CommentLexer.cpp
+++ b/lib/AST/CommentLexer.cpp
@@ -1,4 +1,5 @@
 #include "clang/AST/CommentLexer.h"
+#include "clang/Lex/LexDiagnostic.h"
 #include "clang/AST/CommentCommandTraits.h"
 #include "clang/Basic/CharInfo.h"
 #include "llvm/ADT/StringExtras.h"
@@ -353,6 +354,8 @@ void Lexer::lexCommentText(Token &T) {
         if (!Info) {
           formTokenWithChars(T, TokenPtr, tok::unknown_command);
           T.setUnknownCommandName(CommandName);
+          Diag(T.getLocation(),
+               diag::warn_unknown_comment_command_name);
           return;
         }
         if (Info->IsVerbatimBlockCommand) {
@@ -685,10 +688,11 @@ void Lexer::lexHTMLEndTag(Token &T) {
   State = LS_Normal;
 }
 
-Lexer::Lexer(llvm::BumpPtrAllocator &Allocator, const CommandTraits &Traits,
+Lexer::Lexer(llvm::BumpPtrAllocator &Allocator, DiagnosticsEngine &Diags,
+             const CommandTraits &Traits,
              SourceLocation FileLoc,
              const char *BufferStart, const char *BufferEnd):
-    Allocator(Allocator), Traits(Traits),
+    Allocator(Allocator), Diags(Diags), Traits(Traits),
     BufferStart(BufferStart), BufferEnd(BufferEnd),
     FileLoc(FileLoc), BufferPtr(BufferStart),
     CommentState(LCS_BeforeComment), State(LS_Normal) {
diff --git a/lib/AST/RawCommentList.cpp b/lib/AST/RawCommentList.cpp
index fb85c142e3..92b96dc8e5 100644
--- a/lib/AST/RawCommentList.cpp
+++ b/lib/AST/RawCommentList.cpp
@@ -146,7 +146,8 @@ const char *RawComment::extractBriefText(const ASTContext &Context) const {
   // a separate allocator for all temporary stuff.
   llvm::BumpPtrAllocator Allocator;
 
-  comments::Lexer L(Allocator, Context.getCommentCommandTraits(),
+  comments::Lexer L(Allocator, Context.getDiagnostics(),
+                    Context.getCommentCommandTraits(),
                     Range.getBegin(),
                     RawText.begin(), RawText.end());
   comments::BriefParser P(L, Context.getCommentCommandTraits());
@@ -167,7 +168,8 @@ comments::FullComment *RawComment::parse(const ASTContext &Context,
   // Make sure that RawText is valid.
   getRawText(Context.getSourceManager());
 
-  comments::Lexer L(Context.getAllocator(), Context.getCommentCommandTraits(),
+  comments::Lexer L(Context.getAllocator(), Context.getDiagnostics(),
+                    Context.getCommentCommandTraits(),
                     getSourceRange().getBegin(),
                     RawText.begin(), RawText.end());
   comments::Sema S(Context.getAllocator(), Context.getSourceManager(),