1 #include <js_native_api.h>
2 #include "../common.h"
3
4 static bool exceptionWasPending = false;
5
returnException(napi_env env,napi_callback_info info)6 static napi_value returnException(napi_env env, napi_callback_info info) {
7 size_t argc = 1;
8 napi_value args[1];
9 NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
10
11 napi_value global;
12 NAPI_CALL(env, napi_get_global(env, &global));
13
14 napi_value result;
15 napi_status status = napi_call_function(env, global, args[0], 0, 0, &result);
16 if (status == napi_pending_exception) {
17 napi_value ex;
18 NAPI_CALL(env, napi_get_and_clear_last_exception(env, &ex));
19 return ex;
20 }
21
22 return NULL;
23 }
24
constructReturnException(napi_env env,napi_callback_info info)25 static napi_value constructReturnException(napi_env env, napi_callback_info info) {
26 size_t argc = 1;
27 napi_value args[1];
28 NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
29
30 napi_value result;
31 napi_status status = napi_new_instance(env, args[0], 0, 0, &result);
32 if (status == napi_pending_exception) {
33 napi_value ex;
34 NAPI_CALL(env, napi_get_and_clear_last_exception(env, &ex));
35 return ex;
36 }
37
38 return NULL;
39 }
40
allowException(napi_env env,napi_callback_info info)41 static napi_value allowException(napi_env env, napi_callback_info info) {
42 size_t argc = 1;
43 napi_value args[1];
44 NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
45
46 napi_value global;
47 NAPI_CALL(env, napi_get_global(env, &global));
48
49 napi_value result;
50 napi_call_function(env, global, args[0], 0, 0, &result);
51 // Ignore status and check napi_is_exception_pending() instead.
52
53 NAPI_CALL(env, napi_is_exception_pending(env, &exceptionWasPending));
54 return NULL;
55 }
56
constructAllowException(napi_env env,napi_callback_info info)57 static napi_value constructAllowException(napi_env env, napi_callback_info info) {
58 size_t argc = 1;
59 napi_value args[1];
60 NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
61
62 napi_value result;
63 napi_new_instance(env, args[0], 0, 0, &result);
64 // Ignore status and check napi_is_exception_pending() instead.
65
66 NAPI_CALL(env, napi_is_exception_pending(env, &exceptionWasPending));
67 return NULL;
68 }
69
wasPending(napi_env env,napi_callback_info info)70 static napi_value wasPending(napi_env env, napi_callback_info info) {
71 napi_value result;
72 NAPI_CALL(env, napi_get_boolean(env, exceptionWasPending, &result));
73
74 return result;
75 }
76
finalizer(napi_env env,void * data,void * hint)77 static void finalizer(napi_env env, void *data, void *hint) {
78 NAPI_CALL_RETURN_VOID(env,
79 napi_throw_error(env, NULL, "Error during Finalize"));
80 }
81
createExternal(napi_env env,napi_callback_info info)82 static napi_value createExternal(napi_env env, napi_callback_info info) {
83 napi_value external;
84
85 NAPI_CALL(env,
86 napi_create_external(env, NULL, finalizer, NULL, &external));
87
88 return external;
89 }
90
91 EXTERN_C_START
Init(napi_env env,napi_value exports)92 napi_value Init(napi_env env, napi_value exports) {
93 napi_property_descriptor descriptors[] = {
94 DECLARE_NAPI_PROPERTY("returnException", returnException),
95 DECLARE_NAPI_PROPERTY("allowException", allowException),
96 DECLARE_NAPI_PROPERTY("constructReturnException", constructReturnException),
97 DECLARE_NAPI_PROPERTY("constructAllowException", constructAllowException),
98 DECLARE_NAPI_PROPERTY("wasPending", wasPending),
99 DECLARE_NAPI_PROPERTY("createExternal", createExternal),
100 };
101 NAPI_CALL(env, napi_define_properties(
102 env, exports, sizeof(descriptors) / sizeof(*descriptors), descriptors));
103
104 napi_value error, code, message;
105 NAPI_CALL(env, napi_create_string_utf8(env, "Error during Init",
106 NAPI_AUTO_LENGTH, &message));
107 NAPI_CALL(env, napi_create_string_utf8(env, "", NAPI_AUTO_LENGTH, &code));
108 NAPI_CALL(env, napi_create_error(env, code, message, &error));
109 NAPI_CALL(env, napi_set_named_property(env, error, "binding", exports));
110 NAPI_CALL(env, napi_throw(env, error));
111
112 return exports;
113 }
114 EXTERN_C_END
115