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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
// META: global=window,dedicatedworker,jsshell
// META: script=/wasm/jsapi/wasm-module-builder.js
let emptyModuleBinary;
setup(() => {
emptyModuleBinary = new WasmModuleBuilder().toBuffer();
});
function assert_ModuleExportDescriptor(export_, expected) {
assert_equals(Object.getPrototypeOf(export_), Object.prototype, "Prototype");
assert_true(Object.isExtensible(export_), "isExtensible");
const name = Object.getOwnPropertyDescriptor(export_, "name");
assert_true(name.writable, "name: writable");
assert_true(name.enumerable, "name: enumerable");
assert_true(name.configurable, "name: configurable");
assert_equals(name.value, expected.name);
const kind = Object.getOwnPropertyDescriptor(export_, "kind");
assert_true(kind.writable, "kind: writable");
assert_true(kind.enumerable, "kind: enumerable");
assert_true(kind.configurable, "kind: configurable");
assert_equals(kind.value, expected.kind);
}
function assert_exports(exports, expected) {
assert_true(Array.isArray(exports), "Should be array");
assert_equals(Object.getPrototypeOf(exports), Array.prototype, "Prototype");
assert_true(Object.isExtensible(exports), "isExtensible");
assert_equals(exports.length, expected.length);
for (let i = 0; i < expected.length; ++i) {
assert_ModuleExportDescriptor(exports[i], expected[i]);
}
}
test(() => {
assert_throws_js(TypeError, () => WebAssembly.Module.exports());
}, "Missing arguments");
test(() => {
const invalidArguments = [
undefined,
null,
true,
"",
Symbol(),
1,
{},
WebAssembly.Module,
WebAssembly.Module.prototype,
];
for (const argument of invalidArguments) {
assert_throws_js(TypeError, () => WebAssembly.Module.exports(argument),
`exports(${format_value(argument)})`);
}
}, "Non-Module arguments");
test(() => {
const module = new WebAssembly.Module(emptyModuleBinary);
const fn = WebAssembly.Module.exports;
const thisValues = [
undefined,
null,
true,
"",
Symbol(),
1,
{},
WebAssembly.Module,
WebAssembly.Module.prototype,
];
for (const thisValue of thisValues) {
assert_array_equals(fn.call(thisValue, module), []);
}
}, "Branding");
test(() => {
const module = new WebAssembly.Module(emptyModuleBinary);
const exports = WebAssembly.Module.exports(module);
assert_exports(exports, []);
}, "Empty module");
test(() => {
const module = new WebAssembly.Module(emptyModuleBinary);
assert_not_equals(WebAssembly.Module.exports(module), WebAssembly.Module.exports(module));
}, "Empty module: array caching");
test(() => {
const builder = new WasmModuleBuilder();
builder
.addFunction("fn", kSig_v_v)
.addBody([])
.exportFunc();
builder
.addFunction("fn2", kSig_v_v)
.addBody([])
.exportFunc();
builder.setTableBounds(1);
builder.addExportOfKind("table", kExternalTable, 0);
builder.addGlobal(kWasmI32, true)
.exportAs("global")
.init = 7;
builder.addGlobal(kWasmF64, true)
.exportAs("global2")
.init = 1.2;
builder.addMemory(0, 256, true);
const buffer = builder.toBuffer()
const module = new WebAssembly.Module(buffer);
const exports = WebAssembly.Module.exports(module);
const expected = [
{ "kind": "function", "name": "fn" },
{ "kind": "function", "name": "fn2" },
{ "kind": "table", "name": "table" },
{ "kind": "global", "name": "global" },
{ "kind": "global", "name": "global2" },
{ "kind": "memory", "name": "memory" },
];
assert_exports(exports, expected);
}, "exports");
test(() => {
const module = new WebAssembly.Module(emptyModuleBinary);
const exports = WebAssembly.Module.exports(module, {});
assert_exports(exports, []);
}, "Stray argument");
|
