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Implement Blob url support for worker (#2729)

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Kevin (Kun) "Kassimo" Qian 2019-08-06 06:22:11 -07:00 • committed by Ryan Dahl
parent 11c850af42
commit ccee2f01ba
8 changed files with 118 additions and 24 deletions
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7
js/blob.ts
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@ -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 {