@adguard/agtree
Version:
Tool set for working with adblock filter lists
51 lines (48 loc) • 1.89 kB
JavaScript
/*
* AGTree v3.4.3 (build date: Thu, 11 Dec 2025 13:43:19 GMT)
* (c) 2025 Adguard Software Ltd.
* Released under the MIT license
* https://github.com/AdguardTeam/tsurlfilter/tree/master/packages/agtree#readme
*/
import { NULL, EMPTY } from '../../utils/constants.js';
import { BaseDeserializer } from '../base-deserializer.js';
import { ValueNodeMarshallingMap } from '../../marshalling-utils/misc/value-common.js';
import { BinaryTypeMarshallingMap } from '../../marshalling-utils/misc/binary-type-common.js';
/**
* Value deserializer.
*/
class ValueDeserializer extends BaseDeserializer {
/**
* Deserializes a value node from binary format.
*
* @param buffer ByteBuffer for reading binary data.
* @param node Destination node.
* @param frequentValuesMap Optional map of frequent values.
* @throws If the binary data is malformed.
*/
static deserialize(buffer, node, frequentValuesMap) {
buffer.assertUint8(BinaryTypeMarshallingMap.ValueNode);
node.type = 'Value';
let prop = buffer.readUint8();
while (prop !== NULL) {
switch (prop) {
case ValueNodeMarshallingMap.Value:
node.value = buffer.readString();
break;
case ValueNodeMarshallingMap.FrequentValue:
node.value = frequentValuesMap?.get(buffer.readUint8()) ?? EMPTY;
break;
case ValueNodeMarshallingMap.Start:
node.start = buffer.readUint32();
break;
case ValueNodeMarshallingMap.End:
node.end = buffer.readUint32();
break;
default:
throw new Error(`Invalid property: ${prop}`);
}
prop = buffer.readUint8();
}
}
}
export { ValueDeserializer };