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#include <js_native_api.h>
#include "../common.h"
napi_deferred deferred = NULL;
static napi_value createPromise(napi_env env, napi_callback_info info) {
napi_value promise;
// We do not overwrite an existing deferred.
if (deferred != NULL) {
return NULL;
}
NAPI_CALL(env, napi_create_promise(env, &deferred, &promise));
return promise;
}
static napi_value
concludeCurrentPromise(napi_env env, napi_callback_info info) {
napi_value argv[2];
size_t argc = 2;
bool resolution;
NAPI_CALL(env, napi_get_cb_info(env, info, &argc, argv, NULL, NULL));
NAPI_CALL(env, napi_get_value_bool(env, argv[1], &resolution));
if (resolution) {
NAPI_CALL(env, napi_resolve_deferred(env, deferred, argv[0]));
} else {
NAPI_CALL(env, napi_reject_deferred(env, deferred, argv[0]));
}
deferred = NULL;
return NULL;
}
static napi_value isPromise(napi_env env, napi_callback_info info) {
napi_value promise, result;
size_t argc = 1;
bool is_promise;
NAPI_CALL(env, napi_get_cb_info(env, info, &argc, &promise, NULL, NULL));
NAPI_CALL(env, napi_is_promise(env, promise, &is_promise));
NAPI_CALL(env, napi_get_boolean(env, is_promise, &result));
return result;
}
EXTERN_C_START
napi_value Init(napi_env env, napi_value exports) {
napi_property_descriptor descriptors[] = {
DECLARE_NAPI_PROPERTY("createPromise", createPromise),
DECLARE_NAPI_PROPERTY("concludeCurrentPromise", concludeCurrentPromise),
DECLARE_NAPI_PROPERTY("isPromise", isPromise),
};
NAPI_CALL(env, napi_define_properties(
env, exports, sizeof(descriptors) / sizeof(*descriptors), descriptors));
return exports;
}
EXTERN_C_END
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