src: remove usages of GetBackingStore in WASI

This removes all usages of GetBackingStore in WASI. See the linked issue for an explanation. Refs: #32226 Refs: #43921 PR-URL: #44077 Reviewed-By: Jiawen Geng <[email protected]> Reviewed-By: Darshan Sen <[email protected]> Reviewed-By: Gus Caplan <[email protected]> Reviewed-By: Feng Yu <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Anna Henningsen <[email protected]>
nodejs · Aug 3, 2022 · 13d93b6 · 13d93b6
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commit 13d93b6
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Showing 2 changed files with 5 additions and 7 deletions.
diff --git a/src/node_wasi.cc b/src/node_wasi.cc
@@ -73,7 +73,6 @@ inline void Debug(WASI* wasi, Args&&... args) {
   } while (0)
 
 using v8::Array;
-using v8::BackingStore;
 using v8::BigInt;
 using v8::Context;
 using v8::Exception;
@@ -1654,10 +1653,9 @@ void WASI::_SetMemory(const FunctionCallbackInfo<Value>& args) {
 
 uvwasi_errno_t WASI::backingStore(char** store, size_t* byte_length) {
   Local<WasmMemoryObject> memory = PersistentToLocal::Strong(this->memory_);
-  std::shared_ptr<BackingStore> backing_store =
-      memory->Buffer()->GetBackingStore();
-  *byte_length = backing_store->ByteLength();
-  *store = static_cast<char*>(backing_store->Data());
+  Local<v8::ArrayBuffer> ab = memory->Buffer();
+  *byte_length = ab->ByteLength();
+  *store = static_cast<char*>(ab->Data());
   CHECK_NOT_NULL(*store);
   return UVWASI_ESUCCESS;
 }

diff --git a/src/node_wasm_web_api.cc b/src/node_wasm_web_api.cc
@@ -107,12 +107,12 @@ void WasmStreamingObject::Push(const FunctionCallbackInfo<Value>& args) {
 
   if (LIKELY(chunk->IsArrayBufferView())) {
     Local<ArrayBufferView> view = chunk.As<ArrayBufferView>();
-    bytes = view->Buffer()->GetBackingStore()->Data();
+    bytes = view->Buffer()->Data();
     offset = view->ByteOffset();
     size = view->ByteLength();
   } else if (LIKELY(chunk->IsArrayBuffer())) {
     Local<ArrayBuffer> buffer = chunk.As<ArrayBuffer>();
-    bytes = buffer->GetBackingStore()->Data();
+    bytes = buffer->Data();
     offset = 0;
     size = buffer->ByteLength();
   } else {