c6a16c10dd
With bytecode flushing and lazy feedback allocation, we need to call %PrepareForOptimization before we call %OptimizeFunctionOnNextCall, ideally after declaring the function. Bug: v8:8801, v8:8394, v8:9183 Change-Id: I3fb257282a30f6526a376a3afdedb44786320d34 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1648255 Commit-Queue: Mathias Bynens <mathias@chromium.org> Reviewed-by: Maya Lekova <mslekova@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#62119}
76 lines
1.7 KiB
JavaScript
76 lines
1.7 KiB
JavaScript
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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g = async function() {
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await 10;
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};
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assertEquals(undefined, g.prototype);
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g();
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assertEquals(undefined, g.prototype);
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gen = function*() {
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yield 10;
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};
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assertTrue(gen.prototype != undefined && gen.prototype != null);
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gen();
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assertTrue(gen.prototype != undefined && gen.prototype != null);
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async_gen = async function*() {
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yield 10;
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};
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assertTrue(async_gen.prototype != undefined && async_gen.prototype != null);
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async_gen();
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assertTrue(async_gen.prototype != undefined && async_gen.prototype != null);
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function foo(x) {
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return x instanceof Proxy;
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};
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%PrepareFunctionForOptimization(foo);
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function test_for_exception() {
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caught_exception = false;
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try {
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foo({});
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} catch (e) {
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caught_exception = true;
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assertEquals(
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'Function has non-object prototype \'undefined\' in instanceof check',
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e.message);
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} finally {
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assertTrue(caught_exception);
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}
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}
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test_for_exception();
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test_for_exception();
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%OptimizeFunctionOnNextCall(foo);
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test_for_exception();
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Proxy.__proto__.prototype = Function.prototype;
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assertTrue((() => {}) instanceof Proxy);
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assertEquals(
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new Proxy({}, {
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get(o, s) {
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return s;
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}
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}).test,
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'test');
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Proxy.__proto__ = {
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prototype: {b: 2},
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a: 1
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};
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assertEquals(Proxy.prototype, {b: 2});
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(function testProxyCreationContext() {
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let realm = Realm.create();
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let p1 = new Proxy({}, {});
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let p2 = Realm.eval(realm, "new Proxy({}, {})");
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assertEquals(0, Realm.owner(p1));
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assertEquals(1, Realm.owner(p2));
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})();
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