[flang-commits] [PATCH] D143824: [flang] Fix new assertion failure

[Peter Klausler via Phabricator via flang-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rG95526930da6c: [flang] Fix new assertion failure (authored by klausler).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D143824/new/

https://reviews.llvm.org/D143824

Files:
  flang/lib/Parser/token-sequence.cpp


Index: flang/lib/Parser/token-sequence.cpp
===================================================================
--- flang/lib/Parser/token-sequence.cpp
+++ flang/lib/Parser/token-sequence.cpp
@@ -264,8 +264,10 @@
 }
 
 void TokenSequence::Emit(CookedSource &cooked) const {
-  cooked.Put(&char_[0], char_.size());
-  cooked.PutProvenanceMappings(provenances_);
+  if (auto n{char_.size()}) {
+    cooked.Put(&char_[0], n);
+    cooked.PutProvenanceMappings(provenances_);
+  }
 }
 
 llvm::raw_ostream &TokenSequence::Dump(llvm::raw_ostream &o) const {


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