Audit all callers of SourceManager::getCharacterData(); update some of
them to recover more gracefully on failure.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98672 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/PPDirectives.cpp b/lib/Lex/PPDirectives.cpp
index cddc6cf..3bf3fc4 100644
--- a/lib/Lex/PPDirectives.cpp
+++ b/lib/Lex/PPDirectives.cpp
@@ -204,7 +204,12 @@
// to spell an i/e in a strange way that is another letter. Skipping this
// allows us to avoid looking up the identifier info for #define/#undef and
// other common directives.
- const char *RawCharData = SourceMgr.getCharacterData(Tok.getLocation());
+ bool Invalid = false;
+ const char *RawCharData = SourceMgr.getCharacterData(Tok.getLocation(),
+ &Invalid);
+ if (Invalid)
+ return;
+
char FirstChar = RawCharData[0];
if (FirstChar >= 'a' && FirstChar <= 'z' &&
FirstChar != 'i' && FirstChar != 'e') {