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Add an
v8::ArrayBuffer::WasDetached
method to the C++ API
V8's C++ API does not give a way to tell whether an ArrayBuffer has been detached from the `v8::ArrayBuffer` class. In fact, as far as can be told from the C++ API without running JS code, detached ArrayBuffers behave the same as zero-sized ArrayBuffers and there is no way to observe the difference. However, this difference can be observed in JS because constructing a TypedArray from a detached ArrayBuffer will throw. This change adds a `WasDetached` method to the `v8::ArrayBuffer` class to give embedders access to this information without having to run JS code. Bug: v8:13159 Change-Id: I2bb1e380cee1cecd31f6d48ec3d9f28c03a8a673 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3810345 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Toon Verwaest <verwaest@chromium.org> Cr-Commit-Position: refs/heads/main@{#83963}
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