#include <assert.h>

#define NAPI_EXPERIMENTAL

#include <node_api.h>

#define NAPI_CALL(call) \

do { \

napi_status status = call; \

assert(status == napi_ok && #call " failed"); \

} while (0);

#define EXPORT_FUNC(env, exports, name, func) \

do { \

napi_value js_func; \

NAPI_CALL(napi_create_function( \

(env), (name), NAPI_AUTO_LENGTH, (func), NULL, &js_func)); \

NAPI_CALL(napi_set_named_property((env), (exports), (name), js_func)); \

} while (0);

const char* one_byte_string = "The Quick Brown Fox Jumped Over The Lazy Dog.";

const char16_t* two_byte_string =

u"The Quick Brown Fox Jumped Over The Lazy Dog.";

#define DECLARE_BINDING(CapName, lowercase_name, var_name) \

static napi_value CreateString##CapName(napi_env env, \

napi_callback_info info) { \

size_t argc = 4; \

napi_value argv[4]; \

uint32_t n; \

uint32_t index; \

napi_handle_scope scope; \

napi_value js_string; \

\

NAPI_CALL(napi_get_cb_info(env, info, &argc, argv, NULL, NULL)); \

NAPI_CALL(napi_get_value_uint32(env, argv[0], &n)); \

NAPI_CALL(napi_open_handle_scope(env, &scope)); \

NAPI_CALL(napi_call_function(env, argv[1], argv[2], 0, NULL, NULL)); \

for (index = 0; index < n; index++) { \

NAPI_CALL(napi_create_string_##lowercase_name( \

env, (var_name), NAPI_AUTO_LENGTH, &js_string)); \

} \

NAPI_CALL(napi_call_function(env, argv[1], argv[3], 1, &argv[0], NULL)); \

NAPI_CALL(napi_close_handle_scope(env, scope)); \

\

return NULL; \

}

DECLARE_BINDING(Latin1, latin1, one_byte_string)

DECLARE_BINDING(Utf8, utf8, one_byte_string)

DECLARE_BINDING(Utf16, utf16, two_byte_string)

NAPI_MODULE_INIT() {

EXPORT_FUNC(env, exports, "createStringLatin1", CreateStringLatin1);

EXPORT_FUNC(env, exports, "createStringUtf8", CreateStringUtf8);

EXPORT_FUNC(env, exports, "createStringUtf16", CreateStringUtf16);

return exports;

}