39 lines
1.0 KiB
JavaScript
39 lines
1.0 KiB
JavaScript
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// Copyright 2025 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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function HasPackedSmiElements(xs) {
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return %HasFastPackedElements(xs) && %HasSmiElements(xs);
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}
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function HasPackedDoubleElements(xs) {
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return %HasFastPackedElements(xs) && %HasDoubleElements(xs);
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}
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function HasPackedObjectElements(xs) {
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return %HasFastPackedElements(xs) && %HasObjectElements(xs);
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}
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function HasHoleySmiElements(xs) {
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return %HasHoleyElements(xs) && %HasSmiElements(xs);
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}
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function HasHoleyDoubleElements(xs) {
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return %HasHoleyElements(xs) && %HasDoubleElements(xs);
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}
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function HasHoleyObjectElements(xs) {
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return %HasHoleyElements(xs) && %HasObjectElements(xs);
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}
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function MakeArrayDictionaryMode(array, elementCreationCallback) {
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// Add elements into the array until it turns dictionary mode.
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let i = 0;
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while (!%HasDictionaryElements(array)) {
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array[i] = elementCreationCallback();
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i += 100;
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}
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}
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