Function callWasm

test/api/APIAOTNestedVMTest.cpp:135–174

Call specified function from embedded wasm

thread_local std::stack<WasmEdge_ExecutorContext *> ExecutorsStack;
/// Call specified function from embedded wasm
void callWasm(const char *FnName) {
  Ptr<WasmEdge_ASTModuleContext> Module;
  TRY(WasmEdge_LoaderParseFromFile)
  (Ptr{TRY(WasmEdge_LoaderCreate)(nullptr)}, Module, PathNestedWasmCompiled);
  TRY(WasmEdge_ValidatorValidate)
  (Ptr{TRY(WasmEdge_ValidatorCreate)(nullptr)}, Module);

  static auto Executor = Ptr{TRY(WasmEdge_ExecutorCreate)(nullptr, nullptr)};
  auto Store = Ptr{TRY(WasmEdge_StoreCreate)()};
  auto Host = Ptr{TRY(WasmEdge_ModuleInstanceCreate)(StringView{"env"})};
  WasmEdge_ModuleInstanceAddFunction(
      Host, StringView{"hostFnCheck"},
      WasmEdge_FunctionInstanceCreate(
          Ptr{TRY(WasmEdge_FunctionTypeCreate)(nullptr, 0, nullptr, 0)},
          [](void *, const WasmEdge_CallingFrameContext *Frame,
             const WasmEdge_Value *, WasmEdge_Value *) {
            hostFnCheck(Frame);
            return WasmEdge_Result_Success;
          },
          nullptr, 0));
  WasmEdge_ModuleInstanceAddFunction(
      Host, StringView{"hostFnOverwrite"},
      WasmEdge_FunctionInstanceCreate(
          Ptr{TRY(WasmEdge_FunctionTypeCreate)(nullptr, 0, nullptr, 0)},
          [](void *, const WasmEdge_CallingFrameContext *,
             const WasmEdge_Value *, WasmEdge_Value *) {
            hostFnOverwrite();
            return WasmEdge_Result_Success;
          },
          nullptr, 0));
  TRY(WasmEdge_ExecutorRegisterImport)(Executor, Store, Host);

  Ptr<WasmEdge_ModuleInstanceContext> Instance;
  TRY(WasmEdge_ExecutorInstantiate)(Executor, Instance, Store, Module);
  auto *WasmFn =
      TRY(WasmEdge_ModuleInstanceFindFunction)(Instance, StringView{FnName});
  ExecutorsStack.push(Executor);
  TRY(WasmEdge_ExecutorInvoke)(Executor, WasmFn, nullptr, 0, nullptr, 0);
  ExecutorsStack.pop();
}

size_t CalledHostFnCheck = 0;
void hostFnCheck(const WasmEdge_CallingFrameContext *Frame) {