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[TS/JS] Create byte vectors (#8185)

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* Add createByteVector and use set in createString

* Add test for CreateByteVector

---------

Co-authored-by: Derek Bailey <derekbailey@google.com>
This commit is contained in:
razvanalex
2023-12-19 08:42:21 +02:00
committed by GitHub
parent 70c8292c29
commit c0d16995a4
2 changed files with 34 additions and 2 deletions
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19
ts/builder.ts
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@@ -539,9 +539,24 @@ export class Builder {
this.addInt8(0);
this.startVector(1, utf8.length, 1);
this.bb.setPosition(this.space -= utf8.length);
for (let i = 0, offset = this.space, bytes = this.bb.bytes(); i < utf8.length; i++) {
bytes[offset++] = utf8[i];
this.bb.bytes().set(utf8, this.space);
return this.endVector();
}
/**
* Create a byte vector.
*
* @param v The bytes to add
* @returns The offset in the buffer where the byte vector starts
*/
createByteVector(v: Uint8Array | null | undefined): Offset {
if (v === null || v === undefined) {
return 0;
}
this.startVector(1, v.length, 1);
this.bb.setPosition(this.space -= v.length);
this.bb.bytes().set(v, this.space);
return this.endVector();
}