v8/test/mjsunit/wasm/export-global.js
Clemens Hammacher 41e8af2c7c [wasm] Fix errors on exported globals
On an error during {ProcessExports()}, we would just continue
execution, resulting in a DCHECK failure later.
I did not find any tests for exported globals, so I added a few
(including a regression test for the referenced bug).

R=ahaas@chromium.org
BUG=chromium:734295

Change-Id: I35370de934c274f870680c662ef848c72268a7bc
Reviewed-on: https://chromium-review.googlesource.com/539401
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46064}
2017-06-20 17:32:22 +00:00

41 lines
1.4 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.
load("test/mjsunit/wasm/wasm-constants.js");
load("test/mjsunit/wasm/wasm-module-builder.js");
(function exportImmutableGlobal() {
var builder = new WasmModuleBuilder();
let globals = [
[kWasmI32, 'i32_noinit'], // -
[kWasmI32, 'i32', 4711], // -
[kWasmF32, 'f32_noinit'], // -
[kWasmF32, 'f32', Math.fround(3.14)], // -
[kWasmF64, 'f64_noinit'], // -
[kWasmF64, 'f64', 1 / 7] // -
];
for (let g of globals) {
let global_builder = builder.addGlobal(g[0], false).exportAs(g[1]);
if (g[2]) global_builder.init = g[2];
}
var module = builder.instantiate();
for (let g of globals) {
assertEquals("number", typeof module.exports[g[1]], g[1]);
assertEquals(g[2] || 0, module.exports[g[1]], g[1]);
}
})();
(function cannotExportMutableGlobal() {
var builder = new WasmModuleBuilder();
builder.addGlobal(kWasmI32, true).exportAs('g');
assertThrows(() => builder.instantiate(), WebAssembly.CompileError);
})();
(function cannotExportI64Global() {
var builder = new WasmModuleBuilder();
builder.addGlobal(kWasmI64, false).exportAs('g');
assertThrows(() => builder.instantiate(), WebAssembly.LinkError);
})();