[cfe-commits] r46287 - /cfe/trunk/Rewrite/Rewriter.cpp

[Chris Lattner]

Author: lattner
Date: Wed Jan 23 17:37:15 2008
New Revision: 46287

URL: http://llvm.org/viewvc/llvm-project?rev=46287&view=rev
Log:
add some assertions so that the rewriter dies violently with a useful
error instead of subtly with a mysterious one.

Modified:
    cfe/trunk/Rewrite/Rewriter.cpp

Modified: cfe/trunk/Rewrite/Rewriter.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/Rewrite/Rewriter.cpp?rev=46287&r1=46286&r2=46287&view=diff

==============================================================================
--- cfe/trunk/Rewrite/Rewriter.cpp (original)
+++ cfe/trunk/Rewrite/Rewriter.cpp Wed Jan 23 17:37:15 2008
@@ -208,6 +208,7 @@
 /// locations.
 void Rewriter::InsertText(SourceLocation Loc,
                           const char *StrData, unsigned StrLen) {
+  assert(isRewritable(Loc) && "Not a rewritable location!");
   unsigned FileID;
   unsigned StartOffs = getLocationOffsetAndFileID(Loc, FileID);
   getEditBuffer(FileID).InsertText(StartOffs, StrData, StrLen);
@@ -216,6 +217,7 @@
 /// RemoveText - Remove the specified text region.  This method is only valid
 /// on a rewritable source location.
 void Rewriter::RemoveText(SourceLocation Start, unsigned Length) {
+  assert(isRewritable(Start) && "Not a rewritable location!");
   unsigned FileID;
   unsigned StartOffs = getLocationOffsetAndFileID(Start, FileID);
   getEditBuffer(FileID).RemoveText(StartOffs, Length);