More specific data types - ArrayBuffer instead of ArrayBufferLike#279
Merged
gfx merged 1 commit intomsgpack:mainfrom Dec 26, 2025
Merged
More specific data types - ArrayBuffer instead of ArrayBufferLike#279gfx merged 1 commit intomsgpack:mainfrom
gfx merged 1 commit intomsgpack:mainfrom
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By default, TypeScript interfaces like `DataView` and `Uint8Array` are used with the more generic `ArrayBufferLike` type, representing that they can work with either `ArrayBuffer` or `SharedArrayBuffer`. TypeScript 5.9 now uses stricter types for interfaces such as the DOM `fetch` method: a DOM `BufferSource` is now (correctly) marked as requiring `ArrayBuffer`, not `SharedArrayBuffer`. As a result of that change, trying to use a @msgpack/msgpack `encode` result with a `fetch` call will result in a type error. This change updates the types in the `Encoder` class to use `ArrayBuffer` instead of `ArrayBufferLike`, which reflects their implementation and prevents issues with the newer, stricter interfaces.
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Thanks. I don't understand why TypeScript has such imcomptible changes, but I'm willing to merge it. |
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By default, TypeScript interfaces like
DataViewandUint8Arrayare used with the more genericArrayBufferLiketype, representing that they can work with eitherArrayBufferorSharedArrayBuffer. TypeScript 5.9 now uses stricter types for interfaces such as the DOMfetchmethod: a DOMBufferSourceis now (correctly) marked as requiringArrayBuffer, notSharedArrayBuffer. As a result of that change, trying to use a @msgpack/msgpackencoderesult with afetchcall will result in a type error. This change updates the types in theEncoderclass to useArrayBufferinstead ofArrayBufferLike, which reflects their implementation and prevents issues with the newer, stricter interfaces.See microsoft/TypeScript#62168 for more info.