Function ExternSTLMapInsert

test/externref/ExternrefTest.cpp:219–230

Host function to insert {key, val} into std::map .

// Host function to insert {key, val} into std::map<std::string, std::string>.
WasmEdge_Result ExternSTLMapInsert(void *, const WasmEdge_CallingFrameContext *,
                                   const WasmEdge_Value *In, WasmEdge_Value *) {
  // Function type: {externref, externref, externref} -> {}
  void *Ptr0 = WasmEdge_ValueGetExternRef(In[0]);
  void *Ptr1 = WasmEdge_ValueGetExternRef(In[1]);
  void *Ptr2 = WasmEdge_ValueGetExternRef(In[2]);
  auto &Map = *reinterpret_cast<std::map<std::string, std::string> *>(Ptr0);
  auto &Key = *reinterpret_cast<std::string *>(Ptr1);
  auto &Val = *reinterpret_cast<std::string *>(Ptr2);
  Map[Key] = Val;
  return WasmEdge_Result_Success;
}

// Host function to erase std::map<std::string, std::string> by key.
WasmEdge_Result ExternSTLMapErase(void *, const WasmEdge_CallingFrameContext *,