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-rw-r--r--lib/Format/WhitespaceManager.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Format/WhitespaceManager.cpp b/lib/Format/WhitespaceManager.cpp
index bf1207e59c..44e5f690a2 100644
--- a/lib/Format/WhitespaceManager.cpp
+++ b/lib/Format/WhitespaceManager.cpp
@@ -264,6 +264,11 @@ void WhitespaceManager::alignEscapedNewlines(unsigned Start, unsigned End,
void WhitespaceManager::generateChanges() {
for (unsigned i = 0, e = Changes.size(); i != e; ++i) {
const Change &C = Changes[i];
+ if (i > 0) {
+ assert(Changes[i - 1].OriginalWhitespaceRange.getBegin() !=
+ C.OriginalWhitespaceRange.getBegin() &&
+ "Generating two replacements for the same location");
+ }
if (C.CreateReplacement) {
std::string ReplacementText = C.PreviousLinePostfix;
if (C.ContinuesPPDirective)