Add ArrayBuffer::detached method (#55944)#55944
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Summary: After reviewing the feasibility of adding new Runtime functionality, we realized the current state of `Runtime` makes it hard/inconvenient to add new basic functionality. It requires creating a new interface (e.g. `IRuntime2`) to declare the new APIs. Then, everywhere it is needed, both the original `Runtime` and `IRuntime2` needs to passed in to access both APIs. After discussion, we decided to introduce `IRuntime`, which will declare most of the `Runtime` functionalities. All "protected" APIs, which made sense before interfaces were introduced, will now be public. The protected static methods of `Runtime` will remain as is for the Friends to access. After we decided to cut "stable" (after incoming JSI improvements), new functionalities will be added in `IRuntime2` interface. `IRuntime2` will inherit `IRuntime` to make existing functionality easy to access. Changelog: [Internal] Reviewed By: lavenzg Differential Revision: D89093651
Summary: Currently, the size of a jsi `Array` is immutable. Once the `Array` is created, users can only set the element at an existing index, but not append to it. This change adds an `Array::push` API to improve ergonomics. The default implementation is also provided in `jsi::Runtime` Changelog: [Internal] Reviewed By: lavenzg Differential Revision: D82254334
Summary: Adds `ArrayBuffer::tryGetMutableBuffer` to JSI. This allows the user to retrieve a `MutableBuffer` from the `ArrayBuffer`. The returned buffer will point directly into the same buffer as the runtime object, rather than copying it out. The data referencedby the `MutableBuffer` will be alive during the entirety of the `MutableBuffer` lifespan. Addresses: facebook/hermes#1578 Changelog: [Internal] Reviewed By: tmikov Differential Revision: D91264901
Summary: Add a `ArrayBuffer::detached` method that returns true if the ArrayBuffer is detached, false otherwise. Default implementation just checks for the `detached` property Changelog: [Internal] Reviewed By: lavenzg Differential Revision: D92993088
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ArrayBuffer::detached methodArrayBuffer::detached method (#55944)
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Summary: X-link: facebook/react-native#55944 Add a `ArrayBuffer::detached` method that returns true if the ArrayBuffer is detached, false otherwise. Default implementation just checks for the `detached` property Changelog: [Internal] Reviewed By: lavenzg Differential Revision: D92993088 fbshipit-source-id: 77d7055ddc35c21e915915daa2415b44017f81bb
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Summary: X-link: facebook/react-native#55944 Add a `ArrayBuffer::detached` method that returns true if the ArrayBuffer is detached, false otherwise. Default implementation just checks for the `detached` property Changelog: [Internal] Reviewed By: lavenzg Differential Revision: D92993088 fbshipit-source-id: 77d7055ddc35c21e915915daa2415b44017f81bb
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Summary: X-link: facebook/react-native#55944 Add a `ArrayBuffer::detached` method that returns true if the ArrayBuffer is detached, false otherwise. Default implementation just checks for the `detached` property Changelog: [Internal] Reviewed By: lavenzg Differential Revision: D92993088 fbshipit-source-id: 77d7055ddc35c21e915915daa2415b44017f81bb
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Summary: X-link: facebook/react-native#55944 Add a `ArrayBuffer::detached` method that returns true if the ArrayBuffer is detached, false otherwise. Default implementation just checks for the `detached` property Changelog: [Internal] Reviewed By: lavenzg Differential Revision: D92993088 fbshipit-source-id: 77d7055ddc35c21e915915daa2415b44017f81bb
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Summary: X-link: facebook/react-native#55944 Add a `ArrayBuffer::detached` method that returns true if the ArrayBuffer is detached, false otherwise. Default implementation just checks for the `detached` property Changelog: [Internal] Reviewed By: lavenzg Differential Revision: D92993088 fbshipit-source-id: 77d7055ddc35c21e915915daa2415b44017f81bb
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Apr 15, 2026
Summary: X-link: facebook/react-native#55944 Add a `ArrayBuffer::detached` method that returns true if the ArrayBuffer is detached, false otherwise. Default implementation just checks for the `detached` property Changelog: [Internal] Reviewed By: lavenzg Differential Revision: D92993088 fbshipit-source-id: 77d7055ddc35c21e915915daa2415b44017f81bb
tsaichien
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Summary: X-link: facebook/react-native#55944 Add a `ArrayBuffer::detached` method that returns true if the ArrayBuffer is detached, false otherwise. Default implementation just checks for the `detached` property Changelog: [Internal] Reviewed By: lavenzg Differential Revision: D92993088 fbshipit-source-id: 77d7055ddc35c21e915915daa2415b44017f81bb
tsaichien
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Apr 16, 2026
Summary: X-link: facebook/react-native#55944 Add a `ArrayBuffer::detached` method that returns true if the ArrayBuffer is detached, false otherwise. Default implementation just checks for the `detached` property Changelog: [Internal] Reviewed By: lavenzg Differential Revision: D92993088 fbshipit-source-id: 77d7055ddc35c21e915915daa2415b44017f81bb
tsaichien
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Apr 16, 2026
Summary: X-link: facebook/react-native#55944 Add a `ArrayBuffer::detached` method that returns true if the ArrayBuffer is detached, false otherwise. Default implementation just checks for the `detached` property Changelog: [Internal] Reviewed By: lavenzg Differential Revision: D92993088 fbshipit-source-id: 77d7055ddc35c21e915915daa2415b44017f81bb
tsaichien
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Apr 16, 2026
Summary: X-link: facebook/react-native#55944 Add a `ArrayBuffer::detached` method that returns true if the ArrayBuffer is detached, false otherwise. Default implementation just checks for the `detached` property Changelog: [Internal] Reviewed By: lavenzg Differential Revision: D92993088 fbshipit-source-id: 77d7055ddc35c21e915915daa2415b44017f81bb
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Summary:
Add a
ArrayBuffer::detachedmethod that returns true if theArrayBuffer is detached, false otherwise.
Default implementation just checks for the
detachedpropertyChangelog: [Internal]
Reviewed By: lavenzg
Differential Revision: D92993088