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#include <node_api.h>
#include "../common.h"
napi_value Copy(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 valuetype;
NAPI_CALL(env, napi_typeof(env, args[0], &valuetype));
NAPI_ASSERT(env, valuetype == napi_string,
"Wrong type of argment. Expects a string.");
char buffer[128];
size_t buffer_size = 128;
size_t copied;
NAPI_CALL(env,
napi_get_value_string_utf8(env, args[0], buffer, buffer_size, &copied));
napi_value output;
NAPI_CALL(env, napi_create_string_utf8(env, buffer, copied-1, &output));
return output;
}
napi_value Length(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 valuetype;
NAPI_CALL(env, napi_typeof(env, args[0], &valuetype));
NAPI_ASSERT(env, valuetype == napi_string,
"Wrong type of argment. Expects a string.");
size_t length;
NAPI_CALL(env, napi_get_value_string_length(env, args[0], &length));
napi_value output;
NAPI_CALL(env, napi_create_number(env, (double)length, &output));
return output;
}
napi_value Utf8Length(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 valuetype;
NAPI_CALL(env, napi_typeof(env, args[0], &valuetype));
NAPI_ASSERT(env, valuetype == napi_string,
"Wrong type of argment. Expects a string.");
size_t length;
NAPI_CALL(env, napi_get_value_string_utf8(env, args[0], NULL, 0, &length));
napi_value output;
NAPI_CALL(env, napi_create_number(env, (double)length, &output));
return output;
}
void Init(napi_env env, napi_value exports, napi_value module, void* priv) {
napi_property_descriptor properties[] = {
DECLARE_NAPI_PROPERTY("Copy", Copy),
DECLARE_NAPI_PROPERTY("Length", Length),
DECLARE_NAPI_PROPERTY("Utf8Length", Utf8Length),
};
NAPI_CALL_RETURN_VOID(env, napi_define_properties(
env, exports, sizeof(properties) / sizeof(*properties), properties));
}
NAPI_MODULE(addon, Init)
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