// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license. import { core, primordials } from "ext:core/mod.js"; import { op_fs_events_open, op_fs_events_poll } from "ext:core/ops"; const { BadResourcePrototype, InterruptedPrototype, } = core; const { ArrayIsArray, ObjectPrototypeIsPrototypeOf, PromiseResolve, SymbolAsyncIterator, } = primordials; import { SymbolDispose } from "ext:deno_web/00_infra.js"; class FsWatcher { #rid = 0; #promise; constructor(paths, options) { const { recursive } = options; this.#rid = op_fs_events_open({ recursive, paths }); } unref() { core.unrefOpPromise(this.#promise); } ref() { core.refOpPromise(this.#promise); } async next() { try { this.#promise = op_fs_events_poll(this.#rid); const value = await this.#promise; return value ? { value, done: false } : { value: undefined, done: true }; } catch (error) { if (ObjectPrototypeIsPrototypeOf(BadResourcePrototype, error)) { return { value: undefined, done: true }; } else if ( ObjectPrototypeIsPrototypeOf(InterruptedPrototype, error) ) { return { value: undefined, done: true }; } throw error; } } return(value) { core.close(this.#rid); return PromiseResolve({ value, done: true }); } close() { core.close(this.#rid); } [SymbolAsyncIterator]() { return this; } [SymbolDispose]() { core.tryClose(this.#rid); } } function watchFs( paths, options = { __proto__: null, recursive: true }, ) { return new FsWatcher(ArrayIsArray(paths) ? paths : [paths], options); } export { watchFs };