src: implement IsInsideNodeModules() in C++ · nodejs/node@ececd22

args.GetReturnValue().Set(dotenv.ToObject(env));

}

bool starts_with(std::string_view view, std::string_view prefix) {

return view.size() >= prefix.size() &&

view.substr(0, prefix.size()) == prefix;

}

static void IsInsideNodeModules(const FunctionCallbackInfo<Value>& args) {

Isolate* isolate = args.GetIsolate();

CHECK_EQ(args.Length(), 2);

CHECK(args[0]->IsInt32()); // frame_limit

// The second argument is the default value.

int frames_limit = args[0].As<v8::Int32>()->Value();

Local<StackTrace> stack =

StackTrace::CurrentStackTrace(isolate, frames_limit);

int frame_count = stack->GetFrameCount();

// If the search requires looking into more than |frames_limit| frames, give

// up and return the specified default value.

if (frame_count == frames_limit) {

return args.GetReturnValue().Set(args[1]);

}

bool result = false;

for (int i = 0; i < frame_count; ++i) {

Local<StackFrame> stack_frame = stack->GetFrame(isolate, i);

Local<String> script_name = stack_frame->GetScriptName();

if (script_name.IsEmpty() || script_name->Length() == 0) {

continue;

}

Utf8Value script_name_utf8(isolate, script_name);

std::string_view script_name_str = script_name_utf8.ToStringView();

if (starts_with(script_name_str,

"node:")) { // Ported to work with C++17 on 20.x.

continue;

}

if (script_name_str.find("/node_modules/") != std::string::npos ||

script_name_str.find("\\node_modules\\") != std::string::npos ||

script_name_str.find("/node_modules\\") != std::string::npos ||

script_name_str.find("\\node_modules/") != std::string::npos) {

result = true;

break;

}

}

args.GetReturnValue().Set(result);

}

void RegisterExternalReferences(ExternalReferenceRegistry* registry) {

registry->Register(GetPromiseDetails);

registry->Register(GetProxyDetails);

registry->Register(FastGuessHandleType);

registry->Register(fast_guess_handle_type_.GetTypeInfo());

registry->Register(ParseEnv);

registry->Register(IsInsideNodeModules);

}

void Initialize(Local<Object> target,

target->Set(context, env->constants_string(), constants).Check();

}

SetMethod(context, target, "isInsideNodeModules", IsInsideNodeModules);

SetMethodNoSideEffect(

context, target, "getPromiseDetails", GetPromiseDetails);

SetMethodNoSideEffect(context, target, "getProxyDetails", GetProxyDetails);