r197043 - Add comment about PragmaIntroducerKind

[Renato Golin]

Author: rengolin
Date: Wed Dec 11 08:45:53 2013
New Revision: 197043

URL: http://llvm.org/viewvc/llvm-project?rev=197043&view=rev
Log:
Add comment about PragmaIntroducerKind

Modified:
    cfe/trunk/include/clang/Lex/Pragma.h

Modified: cfe/trunk/include/clang/Lex/Pragma.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Lex/Pragma.h?rev=197043&r1=197042&r2=197043&view=diff
==============================================================================
--- cfe/trunk/include/clang/Lex/Pragma.h (original)
+++ cfe/trunk/include/clang/Lex/Pragma.h Wed Dec 11 08:45:53 2013
@@ -28,6 +28,12 @@ namespace clang {
   /**
    * \brief Describes how the pragma was introduced, e.g., with \#pragma,
    * _Pragma, or __pragma.
+   *
+   * This is a callback and there is code outside of clang using it.
+   *
+   * The source location passed down together with the introducer kind is
+   * the one of the token *following* the introducer, so it would not be
+   * immediate for clients to re-lex to see which introducer it was.
    */
   enum PragmaIntroducerKind {
     /**