1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
#define NAPI_VERSION 9
#include <js_native_api.h>
#include "../common.h"
#include "../entry_point.h"
static double value_ = 1;
static napi_value GetValue(napi_env env, napi_callback_info info) {
size_t argc = 0;
NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, NULL, NULL, NULL));
NODE_API_ASSERT(env, argc == 0, "Wrong number of arguments");
napi_value number;
NODE_API_CALL(env, napi_create_double(env, value_, &number));
return number;
}
static napi_value SetValue(napi_env env, napi_callback_info info) {
size_t argc = 1;
napi_value args[1];
NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
NODE_API_ASSERT(env, argc == 1, "Wrong number of arguments");
NODE_API_CALL(env, napi_get_value_double(env, args[0], &value_));
return NULL;
}
static napi_value Echo(napi_env env, napi_callback_info info) {
size_t argc = 1;
napi_value args[1];
NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
NODE_API_ASSERT(env, argc == 1, "Wrong number of arguments");
return args[0];
}
static napi_value HasNamedProperty(napi_env env, napi_callback_info info) {
size_t argc = 2;
napi_value args[2];
NODE_API_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
NODE_API_ASSERT(env, argc == 2, "Wrong number of arguments");
// Extract the name of the property to check
char buffer[128];
size_t copied;
NODE_API_CALL(env,
napi_get_value_string_utf8(env, args[1], buffer, sizeof(buffer), &copied));
// do the check and create the boolean return value
bool value;
napi_value result;
NODE_API_CALL(env, napi_has_named_property(env, args[0], buffer, &value));
NODE_API_CALL(env, napi_get_boolean(env, value, &result));
return result;
}
EXTERN_C_START
napi_value Init(napi_env env, napi_value exports) {
napi_value number;
NODE_API_CALL(env, napi_create_double(env, value_, &number));
napi_value name_value;
NODE_API_CALL(env,
napi_create_string_utf8(
env, "NameKeyValue", NAPI_AUTO_LENGTH, &name_value));
napi_value symbol_description;
napi_value name_symbol;
NODE_API_CALL(env,
napi_create_string_utf8(
env, "NameKeySymbol", NAPI_AUTO_LENGTH, &symbol_description));
NODE_API_CALL(env,
napi_create_symbol(env, symbol_description, &name_symbol));
napi_value name_symbol_descriptionless;
NODE_API_CALL(env,
napi_create_symbol(env, NULL, &name_symbol_descriptionless));
napi_value name_symbol_for;
NODE_API_CALL(env, node_api_symbol_for(env,
"NameKeySymbolFor",
NAPI_AUTO_LENGTH,
&name_symbol_for));
napi_property_descriptor properties[] = {
{ "echo", 0, Echo, 0, 0, 0, napi_enumerable, 0 },
{ "readwriteValue", 0, 0, 0, 0, number, napi_enumerable | napi_writable, 0 },
{ "readonlyValue", 0, 0, 0, 0, number, napi_enumerable, 0},
{ "hiddenValue", 0, 0, 0, 0, number, napi_default, 0},
{ NULL, name_value, 0, 0, 0, number, napi_enumerable, 0},
{ NULL, name_symbol, 0, 0, 0, number, napi_enumerable, 0},
{ NULL, name_symbol_descriptionless, 0, 0, 0, number, napi_enumerable, 0},
{ NULL, name_symbol_for, 0, 0, 0, number, napi_enumerable, 0},
{ "readwriteAccessor1", 0, 0, GetValue, SetValue, 0, napi_default, 0},
{ "readwriteAccessor2", 0, 0, GetValue, SetValue, 0, napi_writable, 0},
{ "readonlyAccessor1", 0, 0, GetValue, NULL, 0, napi_default, 0},
{ "readonlyAccessor2", 0, 0, GetValue, NULL, 0, napi_writable, 0},
{ "hasNamedProperty", 0, HasNamedProperty, 0, 0, 0, napi_default, 0 },
};
NODE_API_CALL(env, napi_define_properties(
env, exports, sizeof(properties) / sizeof(*properties), properties));
return exports;
}
EXTERN_C_END
|
