pthier
ec5dbaebce
Externalization of young generation strings is disallowed on the API.
Modify internal tests to create/copy strings in/to old space before
externalizing them in preparation of disallowing externalization of
young generation strings in general.
This is a partial reland of commit 6c1ca57c1e.
Bug: v8:13883
Change-Id: Ic490e3819aec82b6dba25aa269917aeb500de62f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4531903
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#87657}
64 lines
1.9 KiB
JavaScript
64 lines
1.9 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: --always-use-string-forwarding-table --expose-externalize-string
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// Flags: --expose-gc
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// The main purpose of this test is to make ClusterFuzz aware of the flag and
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// provide some interesting input.
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const long_key = 'key1234567890abcdefg';
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const substr_key = long_key.substring(3,17);
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const consstr_key = 'key' + 1234567890 + 'abcdefg';
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const integer_index = long_key.substring(3,8);
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gc();
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gc();
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// Test object with in-place properties.
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{
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let obj = {
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'key1234567890abcdefg': 'long_key_value',
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'1234567890abcd': 'substr_value',
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12345: 'integer_index'
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};
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assertEquals('long_key_value', obj[long_key]);
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assertEquals('substr_value', obj[substr_key]);
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assertEquals('long_key_value', obj[consstr_key]);
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assertEquals('integer_index', obj[integer_index]);
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}
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// Test object with dictionary properties.
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{
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let obj = [];
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for (let i = 0; i < 100; ++i) {
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obj[i] = i;
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obj['XXX' + i] = 'XXX' + i;
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}
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obj['key1234567890abcdefg'] = 'long_key_value';
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obj['1234567890abcd'] = 'substr_value';
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obj[12345] = 'integer_index';
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assertEquals('long_key_value', obj[long_key]);
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assertEquals('substr_value', obj[substr_key]);
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assertEquals('long_key_value', obj[consstr_key]);
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assertEquals('integer_index', obj[integer_index]);
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// Externalize keys.
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// Externalization might fail in various stress modes (the strings might be
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// externalized already).
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try {
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externalizeString(long_key);
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externalizeString(substr_key);
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externalizeString(consstr_key);
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externalizeString(integer_index);
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} catch {}
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assertEquals('long_key_value', obj[long_key]);
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assertEquals('substr_value', obj[substr_key]);
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assertEquals('long_key_value', obj[consstr_key]);
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assertEquals('integer_index', obj[integer_index]);
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}
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