clean up in emscripten-optimizer arenas

2 files changed, 10 insertions, 0 deletions

diff --git a/src/emscripten-optimizer/simple_ast.cpp b/src/emscripten-optimizer/simple_ast.cpp
index 285686b9a..dddaeab02 100644
--- a/src/emscripten-optimizer/simple_ast.cpp
+++ b/src/emscripten-optimizer/simple_ast.cpp
@@ -56,6 +56,15 @@ bool Ref::operator!() {
 
 Arena arena;
 
+Arena::~Arena() {
+  for (auto* chunk : chunks) {
+    delete[] chunk;
+  }
+  for (auto* chunk : arr_chunks) {
+    delete[] chunk;
+  }
+}
+
 Ref Arena::alloc() {
   if (chunks.size() == 0 || index == CHUNK_SIZE) {
     chunks.push_back(new Value[CHUNK_SIZE]);
diff --git a/src/emscripten-optimizer/simple_ast.h b/src/emscripten-optimizer/simple_ast.h
index 75b7987be..bfb42c510 100644
--- a/src/emscripten-optimizer/simple_ast.h
+++ b/src/emscripten-optimizer/simple_ast.h
@@ -84,6 +84,7 @@ struct Arena {
   int arr_index;
 
   Arena() : index(0), arr_index(0) {}
+  ~Arena();
 
   Ref alloc();
   ArrayStorage* allocArray();