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
|
// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// The test needs --wasm-tier-up because we can't serialize and deserialize
// Liftoff code.
// Flags: --allow-natives-syntax --experimental-wasm-reftypes --wasm-tier-up
d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
(function testExternRefNull() {
const builder = new WasmModuleBuilder();
builder.addFunction('main', kSig_r_v)
.addBody([kExprRefNull, kExternRefCode])
.exportFunc();
var wire_bytes = builder.toBuffer();
var module = new WebAssembly.Module(wire_bytes);
var buffer = %SerializeWasmModule(module);
module = %DeserializeWasmModule(buffer, wire_bytes);
var instance = new WebAssembly.Instance(module);
assertEquals(null, instance.exports.main());
})();
(function testExternRefIsNull() {
const builder = new WasmModuleBuilder();
builder.addFunction('main', kSig_i_r)
.addBody([kExprLocalGet, 0, kExprRefIsNull])
.exportFunc();
var wire_bytes = builder.toBuffer();
var module = new WebAssembly.Module(wire_bytes);
var buffer = %SerializeWasmModule(module);
module = %DeserializeWasmModule(buffer, wire_bytes);
var instance = new WebAssembly.Instance(module);
assertEquals(0, instance.exports.main({'hello' : 'world'}));
assertEquals(0, instance.exports.main(1234));
assertEquals(0, instance.exports.main(0));
assertEquals(0, instance.exports.main(123.4));
assertEquals(0, instance.exports.main(undefined));
assertEquals(1, instance.exports.main(null));
assertEquals(0, instance.exports.main(print));
})();
|
