diff options
Diffstat (limited to 'js/blob.ts')
| -rw-r--r-- | js/blob.ts | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/js/blob.ts b/js/blob.ts index f2668b642..94d03c97f 100644 --- a/js/blob.ts +++ b/js/blob.ts @@ -118,6 +118,10 @@ function processBlobParts( return bytes; } +// A WeakMap holding blob to byte array mapping. +// Ensures it does not impact garbage collection. +export const blobBytesWeakMap = new WeakMap<domTypes.Blob, Uint8Array>(); + export class DenoBlob implements domTypes.Blob { private readonly [bytesSymbol]: Uint8Array; readonly size: number = 0; @@ -161,6 +165,9 @@ export class DenoBlob implements domTypes.Blob { this[bytesSymbol] = bytes; this.size = bytes.byteLength; this.type = type; + + // Register bytes for internal private use. + blobBytesWeakMap.set(this, bytes); } slice(start?: number, end?: number, contentType?: string): DenoBlob { |