/
niceSOFT
/
swig
Обзор
Документация
Войти
/
niceSOFT
/
swig
Код
Задачи
Вики
Пакеты
0
Релизы
0
Аналитика
Безопасность
master
Lib/javascript/napi/nodejs_buffer.i
47 строк
2 KB
Momtchil Momtchev
Javascript Node-API support added
28 июн 2023, 09:24
28 июн 2023, 09:24
ceed547
Код
Авторство
О чём код?
/* * To include generic versions of the in typemaps, add: * * %typemap(in) (void *, size_t) = (const void* buffer_data, const size_t buffer_len); * %typemap(typecheck) (void *, size_t) = (const void* buffer_data, const size_t buffer_len); * * or to discriminate by argument names: * %typemap(in) (void *data, size_t length) = (const void* buffer_data, const size_t buffer_len); * %typemap(typecheck) (void *data, size_t length) = (const void* buffer_data, const size_t buffer_len); */ %typemap(in) (const void* buffer_data, const size_t buffer_len) { if ($input.IsBuffer()) { Napi::Buffer<char> buf = $input.As<Napi::Buffer<char>>(); $1 = reinterpret_cast<void *>(buf.Data()); $2 = buf.ByteLength(); } else { SWIG_exception_fail(SWIG_TypeError, "in method '$symname', argument is not a Buffer"); } } %typemap(typecheck, precedence=SWIG_TYPECHECK_VOIDPTR) (const void* buffer_data, const size_t buffer_len) { $1 = $input.IsBuffer(); } /* * In order to use the argout typemap, the function must have the following signature: * * void buffer(void **buffer_data, size_t *buffer_len) * * In this case, this function will be wrapped by a JS function that takes * no arguments (because of numinputs=0) and returns a Buffer */ %typemap(in, numinputs=0) (void **buffer_data, size_t *buffer_len) (void *temp_data, size_t temp_len) { $1 = &temp_data; $2 = &temp_len; } %typemap(argout) (void **buffer_data, size_t *buffer_len) { if (*$1 != nullptr) { Napi::Buffer<char> buf = Napi::Buffer<char>::Copy(env, reinterpret_cast<char *>(*$1), *$2); NAPI_CHECK_RESULT(buf.As<Napi::Value>(), $result); } else { $result = env.Null(); } }