v8/test/mjsunit/wasm/async-compile.js
Andreas Haas 22615158ed Reland [wasm] Make WebAssembly.compile() asynchronous
The following aspects were changed for the reland:

* The DeferredHandleScope is supposed with a specific pattern,
  i.e. allocate handles in a normal HandleScope and then 
  reopen them in the DeferredHandleScope.
* Set the native_context when it is used in a task.

Change-Id: Ia42c46ec6bc73179cb1f458e36658414ff85cc23
Reviewed-on: https://chromium-review.googlesource.com/468809
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44434}
2017-04-06 10:13:08 +00:00

50 lines
1.5 KiB
JavaScript

// Copyright 2017 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: --expose-wasm --allow-natives-syntax
load("test/mjsunit/wasm/wasm-constants.js");
load("test/mjsunit/wasm/wasm-module-builder.js");
let ok_buffer = (() => {
var builder = new WasmModuleBuilder();
builder.addFunction("f", kSig_i_v)
.addBody([kExprI32Const, 42])
.exportAs("f");
return builder.toBuffer();
})();
// The OK buffer validates and can be made into a module.
assertTrue(WebAssembly.validate(ok_buffer));
let ok_module = new WebAssembly.Module(ok_buffer);
assertTrue(ok_module instanceof WebAssembly.Module);
// The bad buffer does not validate and cannot be made into a module.
let bad_buffer = new ArrayBuffer(0);
assertFalse(WebAssembly.validate(bad_buffer));
assertThrows(() => new WebAssembly.Module(bad_buffer), WebAssembly.CompileError);
function checkModule(module) {
assertTrue(module instanceof WebAssembly.Module);
}
function checkCompileError(ex) {
assertTrue(ex instanceof WebAssembly.CompileError);
}
let kNumCompiles = 3;
// Three compilations of the OK module should succeed.
for (var i = 0; i < kNumCompiles; i++) {
assertPromiseResult(WebAssembly.compile(ok_buffer), checkModule,
(ex) => assertUnreachable);
}
// Three compilations of the bad module should fail.
for (var i = 0; i < kNumCompiles; i++) {
assertPromiseResult(WebAssembly.compile(bad_buffer),
(module) => assertUnreachable,
checkCompileError);
}