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
|
assertErrorMessage(() => wasmEvalText('(module (func) (start 0) (start 0))'), SyntaxError, /wasm text error/);
assertErrorMessage(() => wasmEvalText('(module (func) (start $unknown))'), SyntaxError, /failed to find/);
wasmFailValidateText('(module (func) (start 1))', /unknown start function/);
wasmFailValidateText('(module (func (param i32)) (start 0))', /must be nullary/);
wasmFailValidateText('(module (func (param i32) (param f32)) (start 0))', /must be nullary/);
wasmFailValidateText('(module (func (param i32) (param f32) (param f64)) (start 0))', /must be nullary/);
wasmFailValidateText('(module (func (result f32)) (start 0))', /must not return anything/);
// Basic use case.
var count = 0;
function inc() { count++; }
var exports = wasmEvalText(`(module (import "" "inc" (func $imp)) (func $f (call $imp)) (start $f))`, { "":{inc} }).exports;
assertEq(count, 1);
assertEq(Object.keys(exports).length, 0);
count = 0;
exports = wasmEvalText(`(module (import "" "inc" (func)) (func $start (call 0)) (start $start) (export "" (func 0)))`, { "":{inc} }).exports;
assertEq(count, 1);
assertEq(typeof exports[""], 'function');
assertEq(exports[""](), undefined);
assertEq(count, 2);
// New API.
const Module = WebAssembly.Module;
const Instance = WebAssembly.Instance;
count = 0;
const m = new Module(wasmTextToBinary('(module (import "" "inc" (func $imp)) (func) (func $start (call $imp)) (start $start) (export "" (func $start)))'));
assertEq(count, 0);
assertErrorMessage(() => new Instance(m), TypeError, /second argument must be an object/);
assertEq(count, 0);
const i1 = new Instance(m, { "":{inc} });
assertEq(count, 1);
i1.exports[""]();
assertEq(count, 2);
const i2 = new Instance(m, { "":{inc} });
assertEq(count, 3);
function fail() { assertEq(true, false); }
count = 0;
const m2 = new Module(wasmTextToBinary('(module (import "" "fail" (func)) (import "" "inc" (func $imp)) (func) (start $imp))'));
assertEq(count, 0);
new Instance(m2, {"":{ inc, fail }});
assertEq(count, 1);
|
