804be91ab9
The spec does not allow side effects on wrapping the exceptions crossing the realm boundaries. We need to provide an easy way to inspect the exception-thrown cross-realms according to the last TC39 meeting consensus. Related spec change: https://github.com/tc39/proposal-shadowrealm/pull/382. Bug: v8:11989 Change-Id: Ia78d94fd33cba689267aeacd028d662bd4a37fe9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3618759 Commit-Queue: Chengzhong Wu (legendecas) <legendecas@gmail.com> Reviewed-by: Shu-yu Guo <syg@chromium.org> Cr-Commit-Position: refs/heads/main@{#84961}
54 lines
1.5 KiB
JavaScript
54 lines
1.5 KiB
JavaScript
// Copyright 2022 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: --harmony-shadow-realm
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var shadowRealm = new ShadowRealm();
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// create a proxy on the wrapped value
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var wrapped = shadowRealm.evaluate('() => 1');
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assertEquals(wrapped(), 1);
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var proxy = new Proxy(wrapped, {
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call: function(target, thisArg, args) {
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assertEquals(target, wrapped);
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return target();
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},
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});
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assertEquals(proxy(), 1);
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// create a revocable proxy on the wrapped value
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var revocable = Proxy.revocable(wrapped, {
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call: function(target, thisArg, args) {
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assertEquals(target, wrapped);
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return target();
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},
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});
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var proxy = revocable.proxy;
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assertEquals(proxy(), 1);
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revocable.revoke();
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assertThrows(() => proxy(), TypeError, "Cannot perform 'apply' on a proxy that has been revoked");
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// no-side-effects inspection on thrown error
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var wrapped = shadowRealm.evaluate(`() => {
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throw new Error('foo');
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}`);
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assertThrows(() => wrapped(), TypeError, "WrappedFunction threw (Error: foo)");
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// no-side-effects inspection on thrown error
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var wrapped = shadowRealm.evaluate(`
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globalThis.messageAccessed = false;
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() => {
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const err = new Error('foo');
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Object.defineProperty(err, 'message', {
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get: function() {
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globalThis.messageAccessed = true;
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return 'bar';
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},
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});
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throw err;
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}
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`);
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assertThrows(() => wrapped(), TypeError, "WrappedFunction threw (Error)");
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assertFalse(shadowRealm.evaluate('globalThis.messageAccessed'));
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