fixed-bytes.ts•1.13 kB
import { defineProperties, getBytesCopy, hexlify } from "../../utils/index.js";
import { Typed } from "../typed.js";
import { Coder } from "./abstract-coder.js";
import type { BytesLike } from "../../utils/index.js";
import type { Reader, Writer } from "./abstract-coder.js";
/**
* @_ignore
*/
export class FixedBytesCoder extends Coder {
readonly size!: number;
constructor(size: number, localName: string) {
let name = "bytes" + String(size);
super(name, name, localName, false);
defineProperties<FixedBytesCoder>(this, { size }, { size: "number" });
}
defaultValue(): string {
return ("0x0000000000000000000000000000000000000000000000000000000000000000").substring(0, 2 + this.size * 2);
}
encode(writer: Writer, _value: BytesLike | Typed): number {
let data = getBytesCopy(Typed.dereference(_value, this.type));
if (data.length !== this.size) { this._throwError("incorrect data length", _value); }
return writer.writeBytes(data);
}
decode(reader: Reader): any {
return hexlify(reader.readBytes(this.size));
}
}