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/**
* @license
* Copyright 2023 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
import type * as Bidi from 'chromium-bidi/lib/cjs/protocol/protocol.js';
import {debugError} from '../common/util.js';
/**
* @internal
*/
export class BidiDeserializer {
static deserialize(result: Bidi.Script.RemoteValue): any {
if (!result) {
debugError('Service did not produce a result.');
return undefined;
}
switch (result.type) {
case 'array':
return result.value?.map(value => {
return this.deserialize(value);
});
case 'set':
return result.value?.reduce((acc: Set<unknown>, value) => {
return acc.add(this.deserialize(value));
}, new Set());
case 'object':
return result.value?.reduce((acc: Record<any, unknown>, tuple) => {
const {key, value} = this.#deserializeTuple(tuple);
acc[key as any] = value;
return acc;
}, {});
case 'map':
return result.value?.reduce((acc: Map<unknown, unknown>, tuple) => {
const {key, value} = this.#deserializeTuple(tuple);
return acc.set(key, value);
}, new Map());
case 'promise':
return {};
case 'regexp':
return new RegExp(result.value.pattern, result.value.flags);
case 'date':
return new Date(result.value);
case 'undefined':
return undefined;
case 'null':
return null;
case 'number':
return this.#deserializeNumber(result.value);
case 'bigint':
return BigInt(result.value);
case 'boolean':
return Boolean(result.value);
case 'string':
return result.value;
}
debugError(`Deserialization of type ${result.type} not supported.`);
return undefined;
}
static #deserializeNumber(value: Bidi.Script.SpecialNumber | number): number {
switch (value) {
case '-0':
return -0;
case 'NaN':
return NaN;
case 'Infinity':
return Infinity;
case '-Infinity':
return -Infinity;
default:
return value;
}
}
static #deserializeTuple([serializedKey, serializedValue]: [
Bidi.Script.RemoteValue | string,
Bidi.Script.RemoteValue,
]): {key: unknown; value: unknown} {
const key =
typeof serializedKey === 'string'
? serializedKey
: this.deserialize(serializedKey);
const value = this.deserialize(serializedValue);
return {key, value};
}
}