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#include <node_api.h>
#include <string.h>
#include "../common.h"
napi_value Test(napi_env env, napi_callback_info info) {
size_t argc = 2;
napi_value args[2];
NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
NAPI_ASSERT(env, argc >= 2, "Wrong number of arguments");
napi_valuetype valuetype0;
NAPI_CALL(env, napi_typeof(env, args[0], &valuetype0));
NAPI_ASSERT(env, valuetype0 == napi_object,
"Wrong type of arguments. Expects an array as first argument.");
napi_valuetype valuetype1;
NAPI_CALL(env, napi_typeof(env, args[1], &valuetype1));
NAPI_ASSERT(env, valuetype1 == napi_number,
"Wrong type of arguments. Expects an integer as second argument.");
napi_value array = args[0];
int32_t index;
NAPI_CALL(env, napi_get_value_int32(env, args[1], &index));
NAPI_ASSERT(env, index >= 0, "Invalid index. Expects a positive integer.");
bool isarray;
NAPI_CALL(env, napi_is_array(env, array, &isarray));
if (!isarray) {
return NULL;
}
uint32_t length;
NAPI_CALL(env, napi_get_array_length(env, array, &length));
if ((uint32_t)index >= length) {
napi_value str;
const char* str_val = "Index out of bound!";
size_t str_len = strlen(str_val);
NAPI_CALL(env, napi_create_string_utf8(env, str_val, str_len, &str));
return str;
}
napi_value ret;
NAPI_CALL(env, napi_get_element(env, array, index, &ret));
return ret;
}
napi_value New(napi_env env, napi_callback_info info) {
size_t argc = 1;
napi_value args[1];
NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
NAPI_ASSERT(env, argc >= 1, "Wrong number of arguments");
napi_valuetype valuetype0;
NAPI_CALL(env, napi_typeof(env, args[0], &valuetype0));
NAPI_ASSERT(env, valuetype0 == napi_object,
"Wrong type of arguments. Expects an array as first argument.");
napi_value ret;
NAPI_CALL(env, napi_create_array(env, &ret));
uint32_t i, length;
NAPI_CALL(env, napi_get_array_length(env, args[0], &length));
for (i = 0; i < length; i++) {
napi_value e;
NAPI_CALL(env, napi_get_element(env, args[0], i, &e));
NAPI_CALL(env, napi_set_element(env, ret, i, e));
}
return ret;
}
void Init(napi_env env, napi_value exports, napi_value module, void* priv) {
napi_property_descriptor descriptors[] = {
DECLARE_NAPI_PROPERTY("Test", Test),
DECLARE_NAPI_PROPERTY("New", New),
};
NAPI_CALL_RETURN_VOID(env, napi_define_properties(
env, exports, sizeof(descriptors) / sizeof(*descriptors), descriptors));
}
NAPI_MODULE(addon, Init)
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