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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.// Copyright Joyent, Inc. and Node.js contributors. All rights reserved. MIT license.
const kInternal = Symbol("internal properties");
const replaceUnderscoresRegex = /_/g;const leadingDashesRegex = /^--?/;const trailingValuesRegex = /=.*$/;
// This builds the initial process.allowedNodeEnvironmentFlags// from data in the config binding.export function buildAllowedFlags() {  const allowedNodeEnvironmentFlags = [    "--track-heap-objects",    "--no-track-heap-objects",    "--node-snapshot",    "--no-node-snapshot",    "--require",    "--max-old-space-size",    "--trace-exit",    "--no-trace-exit",    "--disallow-code-generation-from-strings",    "--experimental-json-modules",    "--no-experimental-json-modules",    "--interpreted-frames-native-stack",    "--inspect-brk",    "--no-inspect-brk",    "--trace-tls",    "--no-trace-tls",    "--stack-trace-limit",    "--experimental-repl-await",    "--no-experimental-repl-await",    "--preserve-symlinks",    "--no-preserve-symlinks",    "--report-uncaught-exception",    "--no-report-uncaught-exception",    "--experimental-modules",    "--no-experimental-modules",    "--report-signal",    "--jitless",    "--inspect-port",    "--heapsnapshot-near-heap-limit",    "--tls-keylog",    "--force-context-aware",    "--no-force-context-aware",    "--napi-modules",    "--abort-on-uncaught-exception",    "--diagnostic-dir",    "--verify-base-objects",    "--no-verify-base-objects",    "--unhandled-rejections",    "--perf-basic-prof",    "--trace-atomics-wait",    "--no-trace-atomics-wait",    "--deprecation",    "--no-deprecation",    "--perf-basic-prof-only-functions",    "--perf-prof",    "--max-http-header-size",    "--report-on-signal",    "--no-report-on-signal",    "--throw-deprecation",    "--no-throw-deprecation",    "--warnings",    "--no-warnings",    "--force-fips",    "--no-force-fips",    "--pending-deprecation",    "--no-pending-deprecation",    "--input-type",    "--tls-max-v1.3",    "--no-tls-max-v1.3",    "--tls-min-v1.2",    "--no-tls-min-v1.2",    "--inspect",    "--no-inspect",    "--heapsnapshot-signal",    "--trace-warnings",    "--no-trace-warnings",    "--trace-event-categories",    "--experimental-worker",    "--tls-max-v1.2",    "--no-tls-max-v1.2",    "--perf-prof-unwinding-info",    "--preserve-symlinks-main",    "--no-preserve-symlinks-main",    "--policy-integrity",    "--experimental-wasm-modules",    "--no-experimental-wasm-modules",    "--node-memory-debug",    "--inspect-publish-uid",    "--tls-min-v1.3",    "--no-tls-min-v1.3",    "--experimental-specifier-resolution",    "--secure-heap",    "--tls-min-v1.0",    "--no-tls-min-v1.0",    "--redirect-warnings",    "--experimental-report",    "--trace-event-file-pattern",    "--trace-uncaught",    "--no-trace-uncaught",    "--experimental-loader",    "--http-parser",    "--dns-result-order",    "--trace-sigint",    "--no-trace-sigint",    "--secure-heap-min",    "--enable-fips",    "--no-enable-fips",    "--enable-source-maps",    "--no-enable-source-maps",    "--insecure-http-parser",    "--no-insecure-http-parser",    "--use-openssl-ca",    "--no-use-openssl-ca",    "--tls-cipher-list",    "--experimental-top-level-await",    "--no-experimental-top-level-await",    "--openssl-config",    "--icu-data-dir",    "--v8-pool-size",    "--report-on-fatalerror",    "--no-report-on-fatalerror",    "--title",    "--tls-min-v1.1",    "--no-tls-min-v1.1",    "--report-filename",    "--trace-deprecation",    "--no-trace-deprecation",    "--report-compact",    "--no-report-compact",    "--experimental-policy",    "--experimental-import-meta-resolve",    "--no-experimental-import-meta-resolve",    "--zero-fill-buffers",    "--no-zero-fill-buffers",    "--report-dir",    "--use-bundled-ca",    "--no-use-bundled-ca",    "--experimental-vm-modules",    "--no-experimental-vm-modules",    "--force-async-hooks-checks",    "--no-force-async-hooks-checks",    "--frozen-intrinsics",    "--no-frozen-intrinsics",    "--huge-max-old-generation-size",    "--disable-proto",    "--debug-arraybuffer-allocations",    "--no-debug-arraybuffer-allocations",    "--conditions",    "--experimental-wasi-unstable-preview1",    "--no-experimental-wasi-unstable-preview1",    "--trace-sync-io",    "--no-trace-sync-io",    "--use-largepages",    "--experimental-abortcontroller",    "--debug-port",    "--es-module-specifier-resolution",    "--prof-process",    "-C",    "--loader",    "--report-directory",    "-r",    "--trace-events-enabled",  ];
  /*  function isAccepted(to) {    if (!to.startsWith("-") || to === "--") return true;    const recursiveExpansion = aliases.get(to);    if (recursiveExpansion) {      if (recursiveExpansion[0] === to) {        recursiveExpansion.splice(0, 1);      }      return recursiveExpansion.every(isAccepted);    }    return options.get(to).envVarSettings === kAllowedInEnvironment;  }  for (const { 0: from, 1: expansion } of aliases) {    if (expansion.every(isAccepted)) {      let canonical = from;      if (canonical.endsWith("=")) {        canonical = canonical.slice(0, canonical.length - 1);      }      if (canonical.endsWith(" <arg>")) {        canonical = canonical.slice(0, canonical.length - 4);      }      allowedNodeEnvironmentFlags.push(canonical);    }  }  */
  const trimLeadingDashes = (flag) => flag.replace(leadingDashesRegex, "");
  // Save these for comparison against flags provided to  // process.allowedNodeEnvironmentFlags.has() which lack leading dashes.  const nodeFlags = allowedNodeEnvironmentFlags.map(trimLeadingDashes);
  class NodeEnvironmentFlagsSet extends Set {    constructor(array) {      super();      this[kInternal] = { array };    }
    add() {      // No-op, `Set` API compatible      return this;    }
    delete() {      // No-op, `Set` API compatible      return false;    }
    clear() {      // No-op, `Set` API compatible    }
    has(key) {      // This will return `true` based on various possible      // permutations of a flag, including present/missing leading      // dash(es) and/or underscores-for-dashes.      // Strips any values after `=`, inclusive.      // TODO(addaleax): It might be more flexible to run the option parser      // on a dummy option set and see whether it rejects the argument or      // not.      if (typeof key === "string") {        key = key.replace(replaceUnderscoresRegex, "-");        if (leadingDashesRegex.test(key)) {          key = key.replace(trailingValuesRegex, "");          return this[kInternal].array.includes(key);        }        return nodeFlags.includes(key);      }      return false;    }
    entries() {      this[kInternal].set ??= new Set(this[kInternal].array);      return this[kInternal].set.entries();    }
    forEach(callback, thisArg = undefined) {      this[kInternal].array.forEach((v) =>        Reflect.apply(callback, thisArg, [v, v, this])      );    }
    get size() {      return this[kInternal].array.length;    }
    values() {      this[kInternal].set ??= new Set(this[kInternal].array);      return this[kInternal].set.values();    }  }  NodeEnvironmentFlagsSet.prototype.keys =    NodeEnvironmentFlagsSet      .prototype[Symbol.iterator] =      NodeEnvironmentFlagsSet.prototype.values;
  Object.freeze(NodeEnvironmentFlagsSet.prototype.constructor);  Object.freeze(NodeEnvironmentFlagsSet.prototype);
  return Object.freeze(    new NodeEnvironmentFlagsSet(      allowedNodeEnvironmentFlags,    ),  );}