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fix(util-dynamodb): perform global interface check in NativeAttributeBinary union #6261

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merged 1 commit into from
Jul 9, 2024
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fix(util-dynamodb): perform global interface check in NativeAttributeBinary union #6261

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12 changes: 4 additions & 8 deletions packages/util-dynamodb/src/models.ts
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Original file line number Diff line number Diff line change
@@ -1,5 +1,3 @@
import type { Exact } from "@smithy/types";

/**
* A interface recognizable as a numeric value that stores the underlying number
* as a string.
Expand Down Expand Up @@ -44,19 +42,17 @@ declare global {
interface File {}
}

type Unavailable = never;
type BlobDefined = Exact<Blob, {}> extends true ? false : true;
type BlobOptionalType = BlobDefined extends true ? Blob : Unavailable;
type IfDefined<T> = {} extends T ? never : T;

/**
* @public
*/
export type NativeAttributeBinary =
| ArrayBuffer
| BlobOptionalType
| Buffer
| IfDefined<Blob>
| IfDefined<Buffer>
| DataView
| File
| IfDefined<File>
| Int8Array
| Uint8Array
| Uint8ClampedArray
Expand Down
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