1 #include <js_native_api.h>
2 #include "../common.h"
3 #include "../entry_point.h"
4
Add(napi_env env,napi_callback_info info)5 static napi_value Add(napi_env env, napi_callback_info info) {
6 size_t argc = 2;
7 napi_value args[2];
8 NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
9
10 NODE_API_ASSERT(env, argc >= 2, "Wrong number of arguments");
11
12 napi_valuetype valuetype0;
13 NODE_API_CALL(env, napi_typeof(env, args[0], &valuetype0));
14
15 napi_valuetype valuetype1;
16 NODE_API_CALL(env, napi_typeof(env, args[1], &valuetype1));
17
18 NODE_API_ASSERT(env, valuetype0 == napi_number && valuetype1 == napi_number,
19 "Wrong argument type. Numbers expected.");
20
21 double value0;
22 NODE_API_CALL(env, napi_get_value_double(env, args[0], &value0));
23
24 double value1;
25 NODE_API_CALL(env, napi_get_value_double(env, args[1], &value1));
26
27 napi_value sum;
28 NODE_API_CALL(env, napi_create_double(env, value0 + value1, &sum));
29
30 return sum;
31 }
32
33 EXTERN_C_START
Init(napi_env env,napi_value exports)34 napi_value Init(napi_env env, napi_value exports) {
35 napi_property_descriptor desc = DECLARE_NODE_API_PROPERTY("add", Add);
36 NODE_API_CALL(env, napi_define_properties(env, exports, 1, &desc));
37 return exports;
38 }
39 EXTERN_C_END
40