1 files changed, 6 insertions, 1 deletions
diff --git a/src/wasm-binary.h b/src/wasm-binary.h
index 4d9f4f5ae..a5b4202a0 100644
--- a/src/wasm-binary.h
+++ b/src/wasm-binary.h
@@ -1430,7 +1430,12 @@ class WasmBinaryBuilder {
   MixedArena& allocator;
   const std::vector<char>& input;
   std::istream* sourceMap;
-  std::pair<uint32_t, Function::DebugLocation> nextDebugLocation;
+  struct NextDebugLocation {
+    uint32_t availablePos;
+    uint32_t previousPos;
+    Function::DebugLocation next;
+  };
+  NextDebugLocation nextDebugLocation;
   bool debugInfo = true;
   bool DWARF = false;
   bool skipFunctionBodies = false;