fabb514087
This loads references to {null} values from the instance object instead
of embedding them into the generated code. It is one step towards making
the {WasmCode} objects independent of the Isolate.
Note that this also fixes an issue with the serializer/deserializer that
failed to properly serialize {null} values and accidentally collapsed
them to {undefined} values instead.
R=ahaas@chromium.org
TEST=mjsunit/regress/wasm/regress-7785
BUG=v8:7424,v8:7785
Change-Id: Ie436c2d96890e7c8c89ffe2bd4189a759254775b
Reviewed-on: https://chromium-review.googlesource.com/1070981
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53352}
45 lines
1.5 KiB
JavaScript
45 lines
1.5 KiB
JavaScript
// 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.
|
|
|
|
// Flags: --allow-natives-syntax --experimental-wasm-anyref
|
|
|
|
load("test/mjsunit/wasm/wasm-constants.js");
|
|
load("test/mjsunit/wasm/wasm-module-builder.js");
|
|
|
|
(function testAnyRefNull() {
|
|
const builder = new WasmModuleBuilder();
|
|
builder.addFunction('main', kSig_r_v)
|
|
.addBody([kExprRefNull])
|
|
.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 testAnyRefIsNull() {
|
|
const builder = new WasmModuleBuilder();
|
|
builder.addFunction('main', kSig_i_r)
|
|
.addBody([kExprGetLocal, 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));
|
|
})();
|