Clean up and document code modification hints.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65641 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/Preprocessor.cpp b/lib/Lex/Preprocessor.cpp
index ccb179d..26777d9 100644
--- a/lib/Lex/Preprocessor.cpp
+++ b/lib/Lex/Preprocessor.cpp
@@ -265,7 +265,6 @@
return OutBuf-Buffer;
}
-
/// CreateString - Plop the specified string into a scratch buffer and return a
/// location for it. If specified, the source location provides a source
/// location for the token.
@@ -321,6 +320,25 @@
return TokStart.getFileLocWithOffset(PhysOffset);
}
+/// \brief Computes the source location just past the end of the
+/// token at this source location.
+///
+/// This routine can be used to produce a source location that
+/// points just past the end of the token referenced by \p Loc, and
+/// is generally used when a diagnostic needs to point just after a
+/// token where it expected something different that it received. If
+/// the returned source location would not be meaningful (e.g., if
+/// it points into a macro), this routine returns an invalid
+/// source location.
+SourceLocation Preprocessor::getLocForEndOfToken(SourceLocation Loc) {
+ if (Loc.isInvalid() || !Loc.isFileID())
+ return SourceLocation();
+
+ unsigned Len = Lexer::MeasureTokenLength(Loc, getSourceManager());
+ return AdvanceToTokenCharacter(Loc, Len);
+}
+
+
//===----------------------------------------------------------------------===//
// Preprocessor Initialization Methods