From: Chris Lattner <sabre@nondot.org>
Date: Fri, 23 May 2008 23:10:58 +0000 (+0000)
Subject: add some assertions to catch bad things before they die
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=0d3ab3f121ff6c2a38acde4e93a28980b824d045;p=clang

add some assertions to catch bad things before they die
somewhere deep in rewrite rope.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51515 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Rewrite/RewriteRope.h b/include/clang/Rewrite/RewriteRope.h
index 963c0715d9..c62f684a09 100644
--- a/include/clang/Rewrite/RewriteRope.h
+++ b/include/clang/Rewrite/RewriteRope.h
@@ -209,11 +209,13 @@ public:
   }
   
   void insert(unsigned Offset, const char *Start, const char *End) {
+    assert(Offset <= size() && "Invalid position to insert!");
     if (Start == End) return;
     Chunks.insert(Offset, MakeRopeString(Start, End));
   }
 
   void erase(unsigned Offset, unsigned NumBytes) {
+    assert(Offset+NumBytes <= size() && "Invalid region to erase!");
     if (NumBytes == 0) return;
     Chunks.erase(Offset, NumBytes);
   }