Merge 9b4e07827474ac3a449271e90e0a04fbf9b5c5da into 2d99c323a27ca9013230cfd6fb56ab37f2a0f1d4

- removed memory leak
- don't close iterator when IteratorStepValue fails
- fixed  Iterator Wrap next() and return() arguments
- fixed Iterator.from()

Makefile

@@ -247,6 +247,8 @@ HOST_LIBS=-lm -ldl -lpthread
 LIBS=-lm -lpthread
 ifndef CONFIG_WIN32
 LIBS+=-ldl
+else
+LIBS+=-lws2_32
 endif
 LIBS+=$(EXTRA_LIBS)
 

TODO

@@ -62,5 +62,5 @@ Optimization ideas:
 Test262o:   0/11262 errors, 463 excluded
 Test262o commit: 7da91bceb9ce7613f87db47ddd1292a2dda58b42 (es5-tests branch)
 
-Result: 54/79414 errors, 1637 excluded, 6821 skipped
+Result: 54/80760 errors, 1631 excluded, 6064 skipped
 Test262 commit: e7e136756cd67c1ffcf7c09d03aeb8ad5a6cec0c

doc/globals.d.ts

@@ -0,0 +1,14 @@
+/** Command line arguments where argument[0] is the JS script name. */
+declare const scriptArgs: string[];
+/** Print args separated by spaces and a trailing newline. */
+declare function print(...args: any[]): void;
+
+declare const console: {
+	/** Print args separated by spaces and a trailing newline. */
+	log: typeof print
+};
+
+interface ImportMeta {
+	url: string;
+	main: boolean;
+}

doc/os.d.ts

@@ -0,0 +1,290 @@
+/**
+ * Provides Operating System specific functions:
+ * file access, sockets, signals, timers, async I/O, workers (threads)
+ */
+declare module "os" {
+	type Success = 0;
+	type Errno = number;
+	type NegativeErrno = number;
+	type Result<T> = T | NegativeErrno;
+	type ExitStatus = number;
+	type WaitStatus = number;
+	type Branded<T, B> = T & { __brand: B }; // Prevent interchangeable primitives (e.g. number)
+	type OpenOption = Branded<number, "OpenOption">;
+	type SocketFamily = Branded<number, "SocketFamily">;
+	type SocketType = Branded<number, "SocketType">;
+	type SocketOpt = Branded<number, "SocketOpt">;
+	type SocketShutOpt = Branded<number, "SocketShutOpt">;
+	type PollOpt = Branded<number, "PollOpt">;
+	type PollRet = Branded<number, "PollRet">;
+	type WaitpidOpt = Branded<number, "WaitpidOpt">;
+	type FileDescriptor = Branded<number, "FileDescriptor">;
+	type Signal = Branded<number, "Signal">;
+	type StatMode = Branded<number, "StatMode">;
+	type Pid = Branded<number, "Pid">;
+	type TimerHandle = Branded<unknown, "TimerHandle">;
+	type Callback = () => void;
+	type Platform = "linux" | "darwin" | "win32" | "js";
+	type WorkerMessage = any;
+
+	interface ExecOptions {
+		/**
+		 * Boolean (default = `true`). If `true`, wait until the process is
+		 * terminated. In this case, exec return the exit code if positive or the
+		 * negated signal number if the process was interrupted by a signal. If
+		 * false, do not block and return the process id of the child.
+		 */
+		block?: boolean;
+		/** Is the file searched in the PATH @default true. */
+		usePath?: boolean;
+		/** Set the file to be executed @default args[0] */
+		file?: string,
+		/** The working directory of the new process */
+		cwd?: string,
+		/** Handler for stdin */
+		stdin?: FileDescriptor,
+		/** Handler for stdout */
+		stdout?: FileDescriptor,
+		/** Handler for stderr */
+		stderr?: FileDescriptor,
+		/** set the process environment from the object key-value pairs.
+		 * If unset, it will inherit them from current process. */
+		env?: { [key: string]: string },
+		/** Process uid with `setuid` */
+		uid?: number,
+		/** Process gid with `setgid` */
+		gid?: number,
+	}
+	type ExecNonBlockingOptions = ExecOptions & { block?: false };
+	type ExecBlockingOptions = ExecOptions & { block: true };
+
+	interface Stat {
+		dev: number;
+		ino: number;
+		mode: StatMode;
+		nlink: number;
+		uid: number;
+		gid: number;
+		rdev: number;
+		size: number;
+		blocks: number;
+		/** milliseconds since 1970 */
+		atime: number;
+		/** milliseconds since 1970 */
+		mtime: number;
+		/** milliseconds since 1970 */
+		ctime: number;
+	}
+	interface SocketAddr {
+		/** @example 80 */
+		port: number;
+		/** @example "8.8.8.8" or "::1" */
+		addr: string;
+		/** @default AF_INET */
+		family: SocketFamily;
+	}
+	interface SocketAddrInfo extends SocketAddr {
+		socktype: SocketType;
+	}
+	interface HintAddr {
+		/** @example 80 or "http" */
+		service?: number | string;
+		/** @default any */
+		family?: SocketFamily;
+		/** @default any */
+		socktype?: SocketType;
+	}
+	/* POSIX constants (Windows-specific) */
+	export const O_TEXT: OpenOption;
+	/* POSIX constants */
+	export const O_APPEND: OpenOption;
+	export const O_CREAT: OpenOption;
+	export const O_EXCL: OpenOption;
+	export const O_RDONLY: OpenOption;
+	export const O_RDWR: OpenOption;
+	export const O_TRUNC: OpenOption;
+	export const O_WRONLY: OpenOption;
+	export const S_IFBLK: StatMode;
+	export const S_IFCHR: StatMode;
+	export const S_IFDIR: StatMode;
+	export const S_IFIFO: StatMode;
+	export const S_IFLNK: StatMode;
+	export const S_IFMT: StatMode;
+	export const S_IFREG: StatMode;
+	export const S_IFSOCK: StatMode;
+	export const S_ISGID: StatMode;
+	export const S_ISUID: StatMode;
+	export const SIGABRT: Signal;
+	export const SIGALRM: Signal;
+	export const SIGCHLD: Signal;
+	export const SIGCONT: Signal;
+	export const SIGFPE: Signal;
+	export const SIGILL: Signal;
+	export const SIGINT: Signal;
+	export const SIGPIPE: Signal;
+	export const SIGQUIT: Signal;
+	export const SIGSEGV: Signal;
+	export const SIGSTOP: Signal;
+	export const SIGTERM: Signal;
+	export const SIGTSTP: Signal;
+	export const SIGTTIN: Signal;
+	export const SIGTTOU: Signal;
+	export const SIGUSR1: Signal;
+	export const SIGUSR2: Signal;
+	export const WNOHANG: WaitpidOpt;
+	export const AF_INET: SocketFamily;
+	export const AF_INET6: SocketFamily;
+	export const SOCK_STREAM: SocketType;
+	export const SOCK_DGRAM: SocketType;
+	export const SOCK_RAW: SocketType;
+	//export const SOCK_BLOCK: SocketType; // SOCK_NONBLOCK
+	export const SO_REUSEADDR: SocketOpt;
+	export const SO_ERROR: SocketOpt;
+	export const SO_RCVBUF: SocketOpt;
+	export const SHUT_RD: SocketShutOpt;
+	export const SHUT_WR: SocketShutOpt;
+	export const SHUT_RDWR: SocketShutOpt;
+	/** string representing the platform. */
+	export const platform: Platform;
+	/** Open a file. Return a handle or `< 0` if error. */
+	export function open(filename: string, flags?: OpenOption, mode?: number): Result<FileDescriptor>;
+	/** Close the file handle `fd`. */
+	export function close(fd: FileDescriptor): Result<Success>;
+	/** Seek in the file. Use `std.SEEK_*` for whence */
+	export function seek(fd: FileDescriptor, offset: number, whence: number): Result<number>;
+	export function seek(fd: FileDescriptor, offset: bigint, whence: number): Result<bigint>;
+	/** Read `length` bytes from the file handle `fd` to the `ArrayBuffer` buffer at byte position `offset` */
+	export function read(fd: FileDescriptor, buffer: ArrayBuffer, offset: number, length: number): Result<number>;
+	/** Write `length` bytes to the file handle `fd` from the ArrayBuffer `buffer` at byte position `offset` */
+	export function write(fd: FileDescriptor, buffer: ArrayBuffer, offset: number, length: number): Result<number>;
+	/** Return `true` is fd is a TTY (terminal) handle. */
+	export function isatty(fd: FileDescriptor): boolean;
+	/** Return the TTY size as `[width, height]` or `null` if not available. */
+	export function ttyGetWinSize(fd: FileDescriptor): [width: number, height: number] | null;
+	/** Set the TTY in raw mode. */
+	export function ttySetRaw(fd: FileDescriptor): void;
+	/** Remove a file. */
+	export function remove(filename: string): Result<Success>;
+	/** Rename a file. */
+	export function rename(filename: string): Result<Success>;
+	/** Get the canonicalized absolute pathname of `path` */
+	export function realpath(path: string): [absPath: string, code: Success | Errno];
+	/** Return the current working directory */
+	export function getcwd(): [cwd: string, code: Success | Errno];
+	/** Change the current directory. Return 0 if OK or `-errno`. */
+	export function chdir(): Result<Success>;
+	/** Create a directory at `path`. Return 0 if OK or `-errno`. */
+	export function mkdir(path: string, mode?: number): Result<Success>;
+	/** Get a file status */
+	export function stat(path: string): [fileStatus: Stat, code: Success | Errno]
+	/** Get a link status */
+	export function lstat(path: string): [linkStatus: Stat, code: Success | Errno]
+	/** Change the access and modification times of the file `path` @returns ms since 1970. */
+	export function utimes(path: string, atime: number, mtime: number): Result<Success>;
+	/** Create a link at `linkpath` containing the string `target`. */
+	export function symlink(target: string, linkpath: string): Result<Success>;
+	/** Get link target */
+	export function readlink(path: string): [linkTarget: string, code: Success | Errno];
+	/** List directory entries */
+	export function readdir(dirPath: string): [dirFilenames: string[], code: Success | Errno];
+	/** Set the single `func` read handler to be called each time data can be written to `fd`. */
+	export function setReadHandler(fd: FileDescriptor, func: Callback): void;
+	/** Remove the read handler for `fd`. */
+	export function setReadHandler(fd: FileDescriptor, func: null): void;
+	/** Set the single `func` read handler to be called each time data can be written to `fd`. */
+	export function setWriteHandler(fd: FileDescriptor, func: Callback): void;
+	/** Remove the write handler for `fd`. */
+	export function setWriteHandler(fd: FileDescriptor, func: null): void;
+	/** Set the single `func` to be called when `signal` happens. Work in main thread only */
+	export function signal(signal: Signal, func: Callback): void
+	/** Call the default handler when `signal` happens. */
+	export function signal(signal: Signal, func: null): void
+	/** Ignore when `signal` happens. */
+	export function signal(signal: Signal, func: undefined): void
+	/** Send the signal `sig` to the process `pid`. */
+	export function kill(pid: Pid, signal: Signal): Result<number>;
+	/** Execute a process with the arguments args. */
+	export function exec(args: string[], options?: ExecBlockingOptions): Result<ExitStatus>;
+	/** Execute a process with the arguments args. */
+	export function exec(args: string[], options: ExecNonBlockingOptions): Result<Pid>;
+	/** `waitpid` Unix system call. */
+	export function waitpid(pid: Pid, options: WaitpidOpt): [ret: Result<Pid | Success>, status: WaitStatus];
+	/** `getpid` Unix system call. */
+	export function getpid(): [Pid];
+	/** `dup` Unix system call. */
+	export function dup(fd: FileDescriptor): Result<FileDescriptor>;
+	/** `dup2` Unix system call. */
+	export function dup2(oldFd: FileDescriptor, newFd: FileDescriptor): Result<FileDescriptor>;
+	/** `pipe` Unix system call. */
+	export function pipe(): [readFd: FileDescriptor, writeFd: FileDescriptor] | null;
+	/** Sleep during `delay_ms` milliseconds. */
+	export function sleep(delay_ms: number): Result<number>;
+	/** Sleep during `delay_ms` milliseconds. */
+	export function sleepAsync(delay_ms: number): Promise<Result<number>>;
+	/** Call the function func after `delay` ms. */
+	export function setTimeout(func: Callback, delay: number): TimerHandle;
+	/** Cancel a timer. */
+	export function clearTimeout(handle: TimerHandle): void;
+	/** Create a POSIX socket */
+	export function socket(family: SocketFamily, type: SocketType): Result<FileDescriptor>;
+	/** Get a socket option @example os.getsockopt(sock_srv, os.SO_RCVBUF, uintArr1.buffer); */
+	export function getsockopt(sockfd: FileDescriptor, name: SocketOpt, data: ArrayBuffer): Result<Success>;
+	/** Set a socket option @example os.setsockopt(sock_srv, os.SO_REUSEADDR, new Uint32Array([1]).buffer); */
+	export function setsockopt(sockfd: FileDescriptor, name: SocketOpt, data: ArrayBuffer): Result<Success>;
+	/** Get address information for a given node and/or service @example os.getaddrinfo("localhost", {family:os.AF_INET6}) */
+	export function getaddrinfo(node?: string, hint?: HintAddr): Result<Array<SocketAddrInfo>>;
+	/** Get current address to which the socket sockfd is bound */
+	export function getsockname(sockfd: FileDescriptor): Result<SocketAddr>;
+	/** Bind socket to a specific address */
+	export function bind(sockfd: FileDescriptor, addr: SocketAddr): Result<Success>;
+	/** Mark `sockfd` as passive socket that will `accept()` a `backlog` number of incoming connection (SOMAXCONN by default). */
+	export function listen(sockfd: FileDescriptor, backlog?: number): Result<Success>;
+	/** Shut down part of a full-duplex connection */
+	export function shutdown(sockfd: FileDescriptor, type: SocketShutOpt): Result<Success>;
+	/** Accept incoming connections */
+	export function accept(sockfd: FileDescriptor): Promise<[remotefd: FileDescriptor, remoteaddr: SocketAddr]>;
+	/** Connect `sockfd` to `addr` */
+	export function connect(sockfd: FileDescriptor, addr: SocketAddr): Promise<Result<Success>>;
+	/** Send `length` byte from `buffer` on `sockfd` @returns bytes sent or <0 if error */
+	export function send(sockfd: FileDescriptor, buffer: ArrayBuffer, length?: number): Promise<Result<number>>;
+	/** Receive `length` byte in `buffer` from `sockfd` @returns bytes received or <0 if error */
+	export function recv(sockfd: FileDescriptor, buffer: ArrayBuffer, length?: number): Promise<Result<number>>;
+	/** Send `length` byte from `buffer` on `sockfd` to `addr` @returns bytes sent or <0 if error */
+	export function sendto(sockfd: FileDescriptor, addr: SocketAddr, buffer: ArrayBuffer, length?: number): Promise<Result<number>>;
+	/** Receive `length` byte in `buffer` from `sockfd` @returns bytes received or <0 if error, and remote address used */
+	export function recvfrom(sockfd: FileDescriptor, buffer: ArrayBuffer, length?: number): Promise<[total: Result<number>, from: SocketAddr]>;
+
+	export class Worker {
+		/**
+		 * In the created worker, `Worker.parent` represents the parent worker
+		 * and is used to send or receive messages.
+		 */
+		static parent?: Worker;
+		/**
+		 * Constructor to create a new thread (worker) with an API close to
+		 * the `WebWorkers`. `module_filename` is a string specifying the
+		 * module filename which is executed in the newly created thread. As
+		 * for dynamically imported module, it is relative to the current
+		 * script or module path. Threads normally don’t share any data and
+		 * communicate between each other with messages. Nested workers are
+		 * not supported. An example is available in `tests/test_worker.js`.
+		 */
+		constructor(module_filename: string);
+		/**
+		 * Send a message to the corresponding worker. msg is cloned in the
+		 * destination worker using an algorithm similar to the HTML structured
+		 * clone algorithm. SharedArrayBuffer are shared between workers.
+		 *
+		 * Current limitations: `Map` and `Set` are not supported yet.
+		 */
+		postMessage(msg: WorkerMessage): void;
+		/**
+		 * Getter and setter. Set a function which is called each time a
+		 * message is received. The function is called with a single argument.
+		 * It is an object with a `data` property containing the received
+		 * message. The thread is not terminated if there is at least one non
+		 * `null` onmessage handler.
+		 */
+		onmessage: (msg: WorkerMessage) => void;
+	}
+}

doc/std.d.ts

@@ -0,0 +1,279 @@
+/**
+ * The std module provides wrappers to the libc stdlib.h and stdio.h and a
+ * few other utilities.
+ */
+declare module "std" {
+	import { FileDescriptor, ExitStatus, Errno } from "os";
+
+	/**
+	 * FILE prototype
+	 */
+	export interface FILE {
+		/**
+		 * Close the file. Return 0 if OK or `-errno` in case of I/O error.
+		 */
+		close(): number
+		/**
+		 * Outputs the string with the UTF-8 encoding.
+		 */
+		puts(str: string): void;
+		/**
+		 * Formatted printf.
+		 *
+		 * The same formats as the standard C library printf are supported.
+		 * Integer format types (e.g. `%d`) truncate the Numbers or BigInts to 32
+		 * bits. Use the `l` modifier (e.g. `%ld`) to truncate to 64 bits.
+		 */
+		printf(format: string, ...args: any[]): number;
+		/**
+		 * Flush the buffered file.
+		 */
+		flush(): void;
+		/**
+		 * Seek to a give file position (whence is `std.SEEK_*`). `offset` can
+		 * be a number or a bigint. Return 0 if OK or `-errno` in case of I/O
+		 * error.
+		 */
+		seek(offset: number, whence: number): number;
+		/**
+		 * Return the current file position.
+		 */
+		tell(): number;
+		/**
+		 * Return the current file position as a bigint.
+		 */
+		tello(): bigint;
+		/**
+		 * Return true if end of file.
+		 */
+		eof(): boolean;
+		/**
+		 * Return the associated OS handle.
+		 */
+		fileno(): FileDescriptor;
+		/**
+		 * Return true if there was an error.
+		 */
+		error(): boolean;
+		/**
+		 * Clear the error indication.
+		 */
+		clearerr(): void;
+		/**
+		 * Read `length` bytes from the file to the ArrayBuffer `buffer` at
+		 * byte position `position` (wrapper to the libc `fread`).
+		 */
+		read(buffer: ArrayBuffer, position: number, length: number): number;
+		/**
+		 * Write `length` bytes to the file from the ArrayBuffer `buffer` at
+		 * byte position position (wrapper to the libc `fwrite`).
+		 */
+		write(buffer: ArrayBuffer, postion: number, length: number): number;
+		/**
+		 * Return the next line from the file, assuming UTF-8 encoding, excluding
+		 * the trailing line feed.
+		 */
+		getline(): string;
+		/**
+		 * Read `max_size` bytes from the file and return them as a string
+		 * assuming UTF-8 encoding. If `max_size` is not present, the file is
+		 * read up its end.
+		 */
+		readAsString(max_size?: number): string;
+		/**
+		 * Return the next byte from the file. Return -1 if the end of file is
+		 * reached.
+		 */
+		getByte(): number
+		/**
+		 * Write one byte to the file.
+		 */
+		putByte(c: number): number;
+	}
+
+	export interface EvalOptions {
+		/**
+		 * Boolean (default = `false`). If `true`, error backtraces do not list
+		 * the stack frames below the evalScript.
+		 */
+		backtrace_barrier?: boolean;
+	}
+
+	export interface ErrorObj {
+		errno?: number;
+	}
+
+	export interface UrlGetOptions {
+		/**
+		 * Boolean (default = `false`). If `true`, the response is an
+		 * ArrayBuffer instead of a string. When a string is returned, the
+		 * data is assumed to be UTF-8 encoded.
+		 */
+		binary?: boolean;
+		/**
+		* Boolean (default = `false`). If `true`, return the an object contains
+		* the properties response (response content), responseHeaders (headers
+		* separated by CRLF), status (status code). response is null is case of
+		* protocol or network error. If full is false, only the response is
+		* returned if the status is between 200 and 299. Otherwise null is
+		* returned.
+		*/
+		full?: boolean;
+	}
+
+	export interface UrlGetResponse<T> {
+		response: T | null;
+		status: number;
+		responseHeaders: string;
+	}
+
+	/**
+	 * Result that either represents a FILE or null on error.
+	 */
+	export type FILEResult = FILE | null;
+
+	/**
+	 * Exit the process.
+	 */
+	export function exit(n: ExitStatus): never;
+	/**
+	  * Evaluate the string `str` as a script (global eval).
+	  */
+	export function evalScript(str: string, options?: EvalOptions): any;
+	/**
+	 * Evaluate the file filename as a script (global eval).
+	 */
+	export function loadScript(filename: string): any;
+	/**
+	 * Load the file filename and return it as a string assuming UTF-8
+	 * encoding. Return `null` in case of I/O error.
+	 */
+	export function loadFile(filename: string): string | null;
+	/**
+	 * Open a file (wrapper to the libc fopen()). Return the FILE object or
+	 * `null` in case of I/O error. If errorObj is not undefined, set its
+	 * `errno` property to the error code or to 0 if no error occured.
+	 */
+	export function open(filename: string, flags: string, errorObj?: ErrorObj): FILEResult;
+	/**
+	 * Open a process by creating a pipe (wrapper to the libc `popen()`).
+	 * Return the `FILE` object or `null` in case of I/O error. If `errorObj`
+	 * is not `undefined`, set its `errno` property to the error code or to 0
+	 * if no error occured.
+	 */
+	export function popen(command: string, flags: string, errorObj?: ErrorObj): FILEResult;
+	/**
+	 * Open a file from a file handle (wrapper to the libc `fdopen()`). Return
+	 * the `FILE` object or `null` in case of I/O error. If `errorObj` is not
+	 * `undefined`, set its errno property to the error code or to 0 if no
+	 * error occured.
+	 */
+	export function fdopen(fd: FileDescriptor, flags: string, errorObj?: ErrorObj): FILEResult;
+	/**
+	 * Open a temporary file. Return the `FILE` object or `null` in case of I/O
+	 * error. If `errorObj` is not undefined, set its `errno` property to the
+	 * error code or to 0 if no error occured.
+	 */
+	export function tmpfile(errorObj?: ErrorObj): FILE;
+	/**
+	 * Equivalent to `std.out.puts(str)`.
+	 */
+	export const puts: typeof out.puts;
+	/**
+	 * Equivalent to `std.out.printf(fmt, ...args)`.
+	 */
+	export const printf: typeof out.printf;
+	/**
+	 * Equivalent to the libc `sprintf()`.
+	 */
+	export function sprintf(format: string, ...args: any[]): string;
+	const $in: FILE;
+	/**
+	 * Wrappers to the libc file `stdin`, `stdout`, `stderr`.
+	 */
+	export { $in as in };
+	/**
+	 * Wrappers to the libc file `stdin`, `stdout`, `stderr`.
+	 */
+	export const out: FILE;
+	/**
+	 * Wrappers to the libc file `stdin`, `stdout`, `stderr`.
+	 */
+	export const err: FILE;
+	/**
+	 * Constants for seek().
+	 */
+	export const SEEK_CUR: number;
+	/**
+	 * Constants for seek().
+	 */
+	export const SEEK_END: number;
+	/**
+	 * Constants for seek().
+	 */
+	export const SEEK_SET: number;
+	/**
+	 * Enumeration object containing the integer value of common errors
+	 * (additional error codes may be defined):
+	 */
+	export const Error: {
+		readonly EACCES: number,
+		readonly ENOENT: number,
+		readonly EBADF: number,
+		readonly ENOSPC: number,
+		readonly EBUSY: number,
+		readonly ENOSYS: number,
+		readonly EEXIST: number,
+		readonly EPERM: number,
+		readonly EINVAL: number,
+		readonly EPIPE: number,
+		readonly EIO: number,
+		readonly EAGAIN: number,
+		readonly EINPROGRESS: number,
+		readonly EWOULDBLOCK: number,
+	};
+	/**
+	 * Return a string that describes the error `errno`.
+	 */
+	export function strerror(errno: Errno): string;
+	/**
+	 * Manually invoke the cycle removal algorithm. The cycle removal
+	 * algorithm is automatically started when needed, so this function is
+	 * useful in case of specific memory constraints or for testing.
+	 */
+	export function gc(): void;
+	/**
+	 * Return the value of the environment variable `name` or `undefined` if it
+	 * is not defined.
+	 */
+	export function getenv(name: string): string | undefined;
+	/**
+	 * Set the value of the environment variable `name` to the string `value`.
+	 */
+	export function setenv(name: string, value: string): void;
+	/**
+	 * Delete the environment variable `name`.
+	 */
+	export function unsetenv(name: string): void;
+	/**
+	 * Return an object containing the environment variables as key-value pairs.
+	 */
+	export function getenviron(): { [key: string]: string };
+	/** Download url using the curl command line utility. */
+	export function urlGet(url: string, options?: UrlGetOptions): string | null;
+	export function urlGet(url: string, options: UrlGetOptions & { full?: false, binary: true }): ArrayBuffer | null;
+	export function urlGet(url: string, options: UrlGetOptions & { full: true, binary?: false }): UrlGetResponse<string>;
+	export function urlGet(url: string, options: UrlGetOptions & { full: true, binary: true }): UrlGetResponse<ArrayBuffer>;
+	/**
+	 * Parse `str` using a superset of `JSON.parse`. The following extensions are accepted:
+	 *
+	 * - Single line and multiline comments
+	 * - unquoted properties (ASCII-only Javascript identifiers)
+	 * - trailing comma in array and object definitions
+	 * - single quoted strings
+	 * - \\f and \\v are accepted as space characters
+	 * - leading plus in numbers
+	 * - octal (0o prefix) and hexadecimal (0x prefix) numbers
+	 */
+	export function parseExtJSON(str: string): any;
+}

examples/http_client.js

@@ -0,0 +1,25 @@
+#!/usr/bin/env qjs
+///@ts-check
+/// <reference path="../doc/globals.d.ts" />
+/// <reference path="../doc/os.d.ts" />
+/// <reference path="../doc/std.d.ts" />
+import * as os from "os";
+import * as std from "std";
+
+/** @template T @param {os.Result<T>} result */
+function must(result) {
+    if (typeof result === "number" && result < 0) throw new Error(std.strerror(-result));
+    return /** @type {T} */ (result)
+}
+//USAGE: client.js wttr.in/paris
+const uriRegexp = /^(?<host>[A-Za-z0-9\-\.]+)(?<port>:[0-9]+)?(?<query>.*)$/;
+const { host = "bellard.org", port = ":80", query = "/" } = scriptArgs[1]?.match(uriRegexp)?.groups || {};
+console.log("sending GET on",{ host, port, query })
+const [addr] = must(os.getaddrinfo(host, { service: port.slice(1) }));
+const sockfd = must(os.socket(addr.family, addr.socktype));
+await os.connect(sockfd, addr);
+const httpReq = Uint8Array.from(`GET ${query||'/'} HTTP/1.0\r\nHost: ${host}\r\nUser-Agent: curl\r\n\r\n`, c => c.charCodeAt(0))
+must(await os.send(sockfd, httpReq.buffer) > 0);
+const chunk = new Uint8Array(512);
+const recvd = await os.recv(sockfd, chunk.buffer);
+console.log([...chunk.slice(0, recvd)].map(c => String.fromCharCode(c)).join(''));

examples/http_server.js

@@ -0,0 +1,96 @@
+#!/usr/bin/env qjs
+///@ts-check
+/// <reference path="../doc/globals.d.ts" />
+/// <reference path="../doc/os.d.ts" />
+/// <reference path="../doc/std.d.ts" />
+import * as os from "os";
+import * as std from "std";// for std.strerror
+
+const MIMES = new Map([
+    ['html', 'text/html'],
+    ['txt', 'text/plain'],
+    ['css', 'text/css'],
+    ['c', 'text/plain'],
+    ['h', 'text/plain'],
+    ['json', 'application/json'],
+    ['mjs', 'application/javascript'],
+    ['js', 'application/javascript'],
+    ['', 'application/octet-stream'],
+]);
+/** @template T @param {os.Result<T>} result */
+function must(result) {
+    if (typeof result === "number" && result < 0) throw new Error(std.strerror(-result));
+    return /** @type {T} */ (result)
+}
+/**@param {os.FileDescriptor} fd */
+async function* recvLines(fd) {
+    const chunk = new Uint8Array(1);
+    let line = '';
+    while (await os.recv(fd, chunk.buffer) > 0) {
+        const char = String.fromCharCode(...chunk);
+        if (char == '\n') {
+            yield line;
+            line = '';
+        } else line += char;
+    }
+    if (line) yield line;
+}
+/** @param {os.FileDescriptor} fd @param {string[]} lines */
+function sendLines(fd, lines) {
+    const buf = Uint8Array.from(lines.join('\r\n'), c => c.charCodeAt(0));
+    return os.send(fd, buf.buffer);
+}
+//USAGE: qjs http_server.js [PORT=8080 [HOST=localhost]]
+const [port = "8080", host = "localhost"] = scriptArgs.slice(1);
+const [ai] = must(os.getaddrinfo(host, { service: port }));
+//if (!ai.length) throw `Unable to getaddrinfo(${host}, ${port})`;
+const sock_srv = must(os.socket(os.AF_INET, os.SOCK_STREAM));
+must(os.setsockopt(sock_srv, os.SO_REUSEADDR, new Uint32Array([1]).buffer));
+must(os.bind(sock_srv, ai));
+must(os.listen(sock_srv));
+//os.signal(os.SIGINT, ()=>os.close(sock_srv)); // don't work
+console.log(`Listening on http://${host}:${port} (${ai.addr}:${ai.port}) ...`);
+const openCmd = { linux: "xdg-open", darwin: "open", win32: "start" }[os.platform];
+if (openCmd && os.exec) os.exec([openCmd, `http://${host}:${port}`]);
+while (true) { // TODO: break on SIG*
+    const [sock_cli] = await os.accept(sock_srv);
+
+    const lines = recvLines(sock_cli);
+    const [method, path, http_ver] = ((await lines.next()).value || '').split(' ');
+    let safe_path = '.' + path.replaceAll(/\.+/g, '.'); // may += index.html later
+    console.log(method, safe_path, http_ver);
+
+    const headers = new Map()
+    for await (const line of lines) {
+        const header = line.trimEnd();
+        if (!header) break;
+        const sepIdx = header.indexOf(': ');
+        headers.set(header.slice(0, sepIdx), header.slice(sepIdx + 2));
+    }
+
+    let [obj, err] = os.stat(safe_path);
+    if (obj?.mode & os.S_IFDIR && safe_path.endsWith('/') && os.stat(safe_path + 'index.html')[0]) {
+        safe_path += 'index.html';
+        [obj, err] = os.stat(safe_path);
+    }
+    if (err) {
+        await sendLines(sock_cli, ['HTTP/1.1 404', '', safe_path, 'errno:' + err])
+    } else if (obj?.mode & os.S_IFDIR) {
+        if (!safe_path.endsWith('/'))
+            await sendLines(sock_cli, ['HTTP/1.1 301', `Location: ${safe_path}/`, '']);
+        else
+            await sendLines(sock_cli, ['HTTP/1.1 200', 'Content-Type: text/html', '',
+                os.readdir(safe_path)[0]?.filter(e => e[0] != '.').map(e => `<li><a href="${e}">${e}</a></li>`).join('')
+            ]);
+    } else {
+        const mime = MIMES.get(safe_path.split('.').at(-1) || '') || MIMES.get('');
+        await sendLines(sock_cli, ['HTTP/1.1 200', `Content-Type: ${mime}`, '', '']);
+        const fd = must(os.open(safe_path));
+        const fbuf = new Uint8Array(4096);
+        for (let got = 0; (got = os.read(fd, fbuf.buffer, 0, fbuf.byteLength)) > 0;) {
+            await os.send(sock_cli, fbuf.buffer, got);
+        }
+    }
+
+    os.close(sock_cli);
+}

qjs.c

@@ -39,6 +39,11 @@
 #elif defined(__FreeBSD__)
 #include <malloc_np.h>
 #endif
+#if defined(_WIN32)
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#include <windows.h>
+#endif
 
 #include "cutils.h"
 #include "quickjs-libc.h"

quickjs-atom.h

@@ -78,6 +78,8 @@ DEF(await, "await")
 /* empty string */
 DEF(empty_string, "")
 /* identifiers */
+DEF(keys, "keys")
+DEF(size, "size")
 DEF(length, "length")
 DEF(fileName, "fileName")
 DEF(lineNumber, "lineNumber")
@@ -228,6 +230,9 @@ DEF(Map, "Map")
 DEF(Set, "Set") /* Map + 1 */
 DEF(WeakMap, "WeakMap") /* Map + 2 */
 DEF(WeakSet, "WeakSet") /* Map + 3 */
+DEF(Iterator, "Iterator")
+DEF(IteratorHelper, "Iterator Helper")
+DEF(IteratorWrap, "Iterator Wrap")
 DEF(Map_Iterator, "Map Iterator")
 DEF(Set_Iterator, "Set Iterator")
 DEF(Array_Iterator, "Array Iterator")

quickjs-libc.c

@@ -38,6 +38,8 @@
 #include <sys/stat.h>
 #include <dirent.h>
 #if defined(_WIN32)
+#include <winsock2.h>
+#include <ws2tcpip.h>
 #include <windows.h>
 #include <conio.h>
 #include <utime.h>
@@ -46,6 +48,12 @@
 #include <termios.h>
 #include <sys/ioctl.h>
 #include <sys/wait.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <arpa/inet.h>
+#include <netdb.h>
 
 #if defined(__FreeBSD__)
 extern char **environ;
@@ -80,16 +88,37 @@ typedef sig_t sighandler_t;
 #define PATH_MAX 4096
 #endif
 
-/* TODO:
+typedef enum {
-   - add socket calls
+    MAGIC_SOCKET_RECV,
-*/
+    MAGIC_SOCKET_SEND,
+    MAGIC_SOCKET_RECVFROM,
+    MAGIC_SOCKET_SENDTO,
+    MAGIC_SOCKET_CONNECT,
+    MAGIC_SOCKET_ACCEPT,
+} MagicSocket;
 
 typedef struct {
     struct list_head link;
     int fd;
-    JSValue rw_func[2];
+    JSValue r_func;
+    JSValue w_func;
 } JSOSRWHandler;
 
+typedef struct {
+    struct list_head link;
+    int sockfd;
+    MagicSocket magic;
+    uint64_t length;
+    uint8_t* buffer;
+    JSValue bufval;
+    struct sockaddr_storage sockaddr; // for sendto()
+    JSValue resolve;
+    JSValue reject;
+#ifdef _WIN32
+    WSAEVENT event; // so os_pool can wait on it
+#endif
+} JSOSSockHandler;
+
 typedef struct {
     struct list_head link;
     int sig_num;
@@ -144,6 +173,7 @@ typedef struct {
 
 typedef struct JSThreadState {
     struct list_head os_rw_handlers; /* list of JSOSRWHandler.link */
+    struct list_head os_sock_handlers; /* list of JSOSSockHandler.link */
     struct list_head os_signal_handlers; /* list JSOSSignalHandler.link */
     struct list_head os_timers; /* list of JSOSTimer.link */
     struct list_head port_list; /* list of JSWorkerMessageHandler.link */
@@ -167,6 +197,93 @@ static BOOL my_isdigit(int c)
     return (c >= '0' && c <= '9');
 }
 
+
+static int JS_ToSockaddrStruct(JSContext *ctx, JSValue addr,
+    struct sockaddr_storage *sockaddr, uint32_t sockfd)
+{
+    JSValue val;
+    const char *addr_str;
+    uint32_t port, family;
+    int ret;
+
+    val = JS_GetPropertyStr(ctx, addr, "family");
+    if (JS_IsException(val))
+        return -1;
+    if (JS_IsUndefined(val)) { // get from sockfd when no .family given
+        struct sockaddr_storage saddr;
+        socklen_t len = sizeof(saddr);
+        if (getsockname(sockfd, (struct sockaddr *)&saddr, &len) != -1) {
+            family = saddr.ss_family;
+        } else {
+            family = AF_INET;
+        }
+    } else if (JS_ToUint32(ctx, &family, val))
+        return -1;
+    sockaddr->ss_family = family;
+    JS_FreeValue(ctx, val);
+
+    val = JS_GetPropertyStr(ctx, addr, "addr");
+    if (JS_IsException(val))
+        return -1;
+    addr_str = JS_ToCString(ctx, val);
+    if (!addr_str)
+        return -1;
+    void* sin_addr = family == AF_INET ?
+        (void*)&(((struct sockaddr_in *)sockaddr)->sin_addr):
+        (void*)&(((struct sockaddr_in6 *)sockaddr)->sin6_addr);
+    ret = inet_pton(sockaddr->ss_family, addr_str, sin_addr);
+    JS_FreeCString(ctx, addr_str);
+    JS_FreeValue(ctx, val);
+    if (ret != 1)
+        return -1;
+
+    val = JS_GetPropertyStr(ctx, addr, "port");
+    ret = JS_ToUint32(ctx, &port, val);
+    JS_FreeValue(ctx, val);
+    if (ret)
+        return -1;
+    if (family == AF_INET)
+        ((struct sockaddr_in *)sockaddr)->sin_port = htons(port);
+    if (family == AF_INET6)
+        ((struct sockaddr_in6 *)sockaddr)->sin6_port = htons(port);
+
+    return 0;
+}
+
+static JSValue JS_ToSockaddrObj(JSContext *ctx, struct sockaddr_storage *sockaddr)
+{
+    JSValue obj, prop;
+    char ip_str[INET6_ADDRSTRLEN]; // max(INET6_ADDRSTRLEN, INET_ADDRSTRLEN)
+    const char *ip_ptr;
+    struct sockaddr_in *sockaddr4 = (struct sockaddr_in *)sockaddr;
+    struct sockaddr_in6 *sockaddr6 = (struct sockaddr_in6 *)sockaddr;
+
+    obj = JS_NewObject(ctx);
+    if (JS_IsException(obj))
+        goto fail;
+
+    prop = JS_NewUint32(ctx, sockaddr->ss_family);
+    JS_DefinePropertyValueStr(ctx, obj, "family", prop, JS_PROP_C_W_E);
+
+    uint16_t sin_port = sockaddr->ss_family == AF_INET ? sockaddr4->sin_port :
+                        sockaddr->ss_family == AF_INET6 ? sockaddr6->sin6_port : 0;
+    prop = JS_NewUint32(ctx, ntohs(sin_port));
+    JS_DefinePropertyValueStr(ctx, obj, "port", prop, JS_PROP_C_W_E);
+
+    void* sin_addr = sockaddr->ss_family == AF_INET ? (void*)&sockaddr4->sin_addr :
+                     sockaddr->ss_family == AF_INET6 ? (void*)&sockaddr6->sin6_addr : NULL;
+    size_t sin_len = sockaddr->ss_family == AF_INET ? INET_ADDRSTRLEN:
+                     sockaddr->ss_family == AF_INET6 ? INET6_ADDRSTRLEN: 0 ;
+    ip_ptr = inet_ntop(sockaddr->ss_family, sin_addr, ip_str, sin_len);
+    prop = ip_ptr ? JS_NewString(ctx, ip_ptr) : JS_NULL;
+    JS_DefinePropertyValueStr(ctx, obj, "addr", prop, JS_PROP_C_W_E);
+    return obj;
+
+    fail:
+    JS_FreeValue(ctx, obj);
+    return JS_EXCEPTION;
+}
+
 /* XXX: use 'o' and 'O' for object using JS_PrintValue() ? */
 static JSValue js_printf_internal(JSContext *ctx,
                                   int argc, JSValueConst *argv, FILE *fp)
@@ -948,6 +1065,18 @@ static ssize_t js_get_errno(ssize_t ret)
     return ret;
 }
 
+static ssize_t js_get_sockerrno(ssize_t ret)
+{
+    #if defined(_WIN32)
+    if (ret == -1 || ret == INVALID_SOCKET)
+        ret = -WSAGetLastError();
+    #else
+    if (ret == -1)
+        ret = -errno;
+    #endif
+    return ret;
+}
+
 static JSValue js_std_strerror(JSContext *ctx, JSValueConst this_val,
                                      int argc, JSValueConst *argv)
 {
@@ -1634,6 +1763,9 @@ static const JSCFunctionListEntry js_std_error_props[] = {
     DEF(EPERM),
     DEF(EPIPE),
     DEF(EBADF),
+    DEF(EAGAIN),
+    DEF(EINPROGRESS),
+    DEF(EWOULDBLOCK),
 #undef DEF
 };
 
@@ -1996,20 +2128,27 @@ static JSOSRWHandler *find_rh(JSThreadState *ts, int fd)
 
 static void free_rw_handler(JSRuntime *rt, JSOSRWHandler *rh)
 {
-    int i;
     list_del(&rh->link);
-    for(i = 0; i < 2; i++) {
+    JS_FreeValueRT(rt, rh->r_func);
-        JS_FreeValueRT(rt, rh->rw_func[i]);
+    JS_FreeValueRT(rt, rh->w_func);
-    }
     js_free_rt(rt, rh);
 }
 
-static JSValue js_os_setReadHandler(JSContext *ctx, JSValueConst this_val,
+static void free_sock_handler(JSRuntime *rt, JSOSSockHandler *sh)
+{
+    list_del(&sh->link);
+    JS_FreeValueRT(rt, sh->resolve);
+    JS_FreeValueRT(rt, sh->reject);
+    js_free_rt(rt, sh);
+}
+
+static JSValue js_os_setReadWriteHandler(JSContext *ctx, JSValueConst this_val,
                                     int argc, JSValueConst *argv, int magic)
 {
     JSRuntime *rt = JS_GetRuntime(ctx);
     JSThreadState *ts = JS_GetRuntimeOpaque(rt);
     JSOSRWHandler *rh;
+    BOOL isRead = magic == 0;
     int fd;
     JSValueConst func;
 
@@ -2019,10 +2158,10 @@ static JSValue js_os_setReadHandler(JSContext *ctx, JSValueConst this_val,
     if (JS_IsNull(func)) {
         rh = find_rh(ts, fd);
         if (rh) {
-            JS_FreeValue(ctx, rh->rw_func[magic]);
+            JSValue* rwfunc = isRead ? &rh->r_func : &rh->w_func;
-            rh->rw_func[magic] = JS_NULL;
+            JS_FreeValue(ctx, *rwfunc);
-            if (JS_IsNull(rh->rw_func[0]) &&
+            *rwfunc = JS_NULL;
-                JS_IsNull(rh->rw_func[1])) {
+            if (JS_IsNull(rh->r_func) && JS_IsNull(rh->w_func)) {
                 /* remove the entry */
                 free_rw_handler(JS_GetRuntime(ctx), rh);
             }
@@ -2036,12 +2175,13 @@ static JSValue js_os_setReadHandler(JSContext *ctx, JSValueConst this_val,
             if (!rh)
                 return JS_EXCEPTION;
             rh->fd = fd;
-            rh->rw_func[0] = JS_NULL;
+            rh->r_func = JS_NULL;
-            rh->rw_func[1] = JS_NULL;
+            rh->w_func = JS_NULL;
             list_add_tail(&rh->link, &ts->os_rw_handlers);
         }
-        JS_FreeValue(ctx, rh->rw_func[magic]);
+        JSValue* rwfunc = isRead ? &rh->r_func : &rh->w_func;
-        rh->rw_func[magic] = JS_DupValue(ctx, func);
+        JS_FreeValue(ctx, *rwfunc);
+        *rwfunc = JS_DupValue(ctx, func);
     }
     return JS_UNDEFINED;
 }
@@ -2347,8 +2487,7 @@ static void js_waker_close(JSWaker *w)
 static void js_free_message(JSWorkerMessage *msg);
 
 /* return 1 if a message was handled, 0 if no message */
-static int handle_posted_message(JSRuntime *rt, JSContext *ctx,
+static int handle_posted_message(JSContext *ctx, JSWorkerMessageHandler *port)
-                                 JSWorkerMessageHandler *port)
 {
     JSWorkerMessagePipe *ps = port->recv_pipe;
     int ret;
@@ -2403,13 +2542,85 @@ static int handle_posted_message(JSRuntime *rt, JSContext *ctx,
     return ret;
 }
 #else
-static int handle_posted_message(JSRuntime *rt, JSContext *ctx,
+static int handle_posted_message(JSContext *ctx, JSWorkerMessageHandler *port)
-                                 JSWorkerMessageHandler *port)
 {
     return 0;
 }
 #endif /* !USE_WORKER */
 
+static void handle_socket_message(JSContext *ctx, JSOSSockHandler *sh)
+{
+    #ifdef _WIN32
+    WSANETWORKEVENTS netEvents;
+    WSAEnumNetworkEvents(sh->sockfd, sh->event, &netEvents);
+    #endif
+
+    int err = 0;
+    struct sockaddr_storage sockaddr;
+    socklen_t addr_len = sizeof(sockaddr);
+
+    if (sh->magic == MAGIC_SOCKET_RECV) {
+        err = js_get_sockerrno(recv(sh->sockfd, (char*) sh->buffer, sh->length, 0));
+    } else if (sh->magic == MAGIC_SOCKET_SEND) {
+        err = js_get_sockerrno(send(sh->sockfd, (char*) sh->buffer, sh->length, 0));
+    } else if (sh->magic == MAGIC_SOCKET_RECVFROM) {
+        err = js_get_sockerrno(recvfrom(sh->sockfd, (char*) sh->buffer, sh->length, 0, (struct sockaddr *)&sockaddr, &addr_len));
+    } else if (sh->magic == MAGIC_SOCKET_SENDTO) {
+        err = js_get_sockerrno(sendto(sh->sockfd, (char*) sh->buffer, sh->length, 0, (const struct sockaddr *)&sh->sockaddr, addr_len));
+    } else if (sh->magic == MAGIC_SOCKET_CONNECT) {
+        #ifdef _WIN32
+        err = 0;
+        #else
+        socklen_t len = sizeof(err);
+        err = getsockopt(sh->sockfd, SOL_SOCKET, SO_ERROR, (char*) &err, &len) ? -errno : -err;
+        #endif
+    } else if (sh->magic == MAGIC_SOCKET_ACCEPT) {
+        err = js_get_sockerrno(accept(sh->sockfd, (struct sockaddr *)&sockaddr, &addr_len));
+    }
+
+#ifdef _WIN32
+    if (err == -WSAEWOULDBLOCK)
+        return;
+#else
+    if (err == -EAGAIN || err == -EWOULDBLOCK)
+        return;
+#endif
+    JSValue promiseval = JS_UNDEFINED;
+    if (sh->magic == MAGIC_SOCKET_ACCEPT) {
+        promiseval = JS_NewArray(ctx);
+        if (JS_IsException(promiseval))
+            return;
+        JS_DefinePropertyValueUint32(ctx, promiseval, 0, JS_NewInt32(ctx, err), JS_PROP_C_W_E);
+        JS_DefinePropertyValueUint32(ctx, promiseval, 1, JS_ToSockaddrObj(ctx, &sockaddr), JS_PROP_C_W_E);
+    } else if (sh->magic == MAGIC_SOCKET_RECVFROM) {
+        JSValue addrObj = JS_ToSockaddrObj(ctx, &sockaddr);
+        if (JS_IsException(addrObj))
+            return;
+        promiseval = JS_NewArray(ctx);
+        if (JS_IsException(promiseval))
+            return;
+        JS_DefinePropertyValueUint32(ctx, promiseval, 0, JS_NewInt64(ctx, err), JS_PROP_C_W_E);
+        JS_DefinePropertyValueUint32(ctx, promiseval, 1, addrObj, JS_PROP_C_W_E);
+    } else {
+        promiseval = JS_NewInt32(ctx, err);
+    }
+
+    /* 'func' might be destroyed when calling itself (if it frees the
+           handler), so must take extra care */
+    JSValue func = JS_DupValue(ctx, err < 0 ? sh->reject : sh->resolve);
+    JSValue retval = JS_Call(ctx, func, JS_UNDEFINED, 1, (JSValueConst *)&promiseval);
+    JS_FreeValue(ctx, func);
+
+    if (JS_IsException(retval)) {
+        js_std_dump_error(ctx);
+    } else {
+        JS_FreeValue(ctx, retval);
+    }
+    JS_FreeValue(ctx, promiseval);
+    JS_FreeValue(ctx, sh->bufval);
+    free_sock_handler(JS_GetRuntime(ctx), sh);
+}
+
 #if defined(_WIN32)
 
 static int js_os_poll(JSContext *ctx)
@@ -2424,8 +2635,10 @@ static int js_os_poll(JSContext *ctx)
 
     /* XXX: handle signals if useful */
 
-    if (list_empty(&ts->os_rw_handlers) && list_empty(&ts->os_timers) &&
+    if (list_empty(&ts->os_rw_handlers) &&
-        list_empty(&ts->port_list)) {
+        list_empty(&ts->os_timers) &&
+        list_empty(&ts->port_list) &&
+        list_empty(&ts->os_sock_handlers)) {
         return -1; /* no more events */
     }
     
@@ -2455,13 +2668,21 @@ static int js_os_poll(JSContext *ctx)
     count = 0;
     list_for_each(el, &ts->os_rw_handlers) {
         rh = list_entry(el, JSOSRWHandler, link);
-        if (rh->fd == 0 && !JS_IsNull(rh->rw_func[0])) {
+        if (rh->fd == 0 && !JS_IsNull(rh->r_func)) {
             handles[count++] = (HANDLE)_get_osfhandle(rh->fd); // stdin
             if (count == (int)countof(handles))
                 break;
         }
     }
 
+    list_for_each(el, &ts->os_sock_handlers) {
+        JSOSSockHandler *sh = list_entry(el, JSOSSockHandler, link);
+        //TODO: socket readability don't seems to be a winsock event => trigger manually
+        handles[count++] = sh->event;
+        if (count == (int)countof(handles))
+            break;
+    }
+
     list_for_each(el, &ts->port_list) {
         JSWorkerMessageHandler *port = list_entry(el, JSWorkerMessageHandler, link);
         if (JS_IsNull(port->on_message_func))
@@ -2477,22 +2698,32 @@ static int js_os_poll(JSContext *ctx)
             timeout = min_delay;
         ret = WaitForMultipleObjects(count, handles, FALSE, timeout);
 
+        // why iterate on every list instead of just handles[ret] ?
         if (ret < count) {
             list_for_each(el, &ts->os_rw_handlers) {
                 rh = list_entry(el, JSOSRWHandler, link);
-                if (rh->fd == 0 && !JS_IsNull(rh->rw_func[0])) {
+                if (rh->fd == 0 && !JS_IsNull(rh->r_func)) {
-                    call_handler(ctx, rh->rw_func[0]);
+                    call_handler(ctx, rh->r_func);
                     /* must stop because the list may have been modified */
                     goto done;
                 }
             }
 
+            list_for_each(el, &ts->os_sock_handlers) {
+                JSOSSockHandler *sh = list_entry(el, JSOSSockHandler, link);
+                if (sh->event == handles[ret]) {
+                    handle_socket_message(ctx, sh);
+                    WSAResetEvent(sh->event); // WSACloseEvent(sh->event);
+                    goto done;
+                }
+            }
+
             list_for_each(el, &ts->port_list) {
                 JSWorkerMessageHandler *port = list_entry(el, JSWorkerMessageHandler, link);
                 if (!JS_IsNull(port->on_message_func)) {
                     JSWorkerMessagePipe *ps = port->recv_pipe;
                     if (ps->waker.handle == handles[ret]) {
-                        if (handle_posted_message(rt, ctx, port))
+                        if (handle_posted_message(ctx, port))
                             goto done;
                     }
                 }
@@ -2515,6 +2746,7 @@ static int js_os_poll(JSContext *ctx)
     int64_t cur_time, delay;
     fd_set rfds, wfds;
     JSOSRWHandler *rh;
+    JSOSSockHandler *sh;
     struct list_head *el;
     struct timeval tv, *tvp;
 
@@ -2535,7 +2767,9 @@ static int js_os_poll(JSContext *ctx)
         }
     }
 
-    if (list_empty(&ts->os_rw_handlers) && list_empty(&ts->os_timers) &&
+    if (list_empty(&ts->os_rw_handlers) &&
+        list_empty(&ts->os_sock_handlers) &&
+        list_empty(&ts->os_timers) &&
         list_empty(&ts->port_list))
         return -1; /* no more events */
 
@@ -2571,12 +2805,27 @@ static int js_os_poll(JSContext *ctx)
     list_for_each(el, &ts->os_rw_handlers) {
         rh = list_entry(el, JSOSRWHandler, link);
         fd_max = max_int(fd_max, rh->fd);
-        if (!JS_IsNull(rh->rw_func[0]))
+        if (!JS_IsNull(rh->r_func))
             FD_SET(rh->fd, &rfds);
-        if (!JS_IsNull(rh->rw_func[1]))
+        if (!JS_IsNull(rh->w_func))
             FD_SET(rh->fd, &wfds);
     }
 
+    list_for_each(el, &ts->os_sock_handlers) {
+        sh = list_entry(el, JSOSSockHandler, link);
+        fd_max = max_int(fd_max, sh->sockfd);
+        if (sh->magic == MAGIC_SOCKET_ACCEPT ||
+            sh->magic == MAGIC_SOCKET_RECV ||
+            sh->magic == MAGIC_SOCKET_RECVFROM){
+            FD_SET(sh->sockfd, &rfds);
+        }
+        if (sh->magic == MAGIC_SOCKET_CONNECT ||
+            sh->magic == MAGIC_SOCKET_SEND ||
+            sh->magic == MAGIC_SOCKET_SENDTO){
+            FD_SET(sh->sockfd, &wfds);
+        }
+    }
+
     list_for_each(el, &ts->port_list) {
         JSWorkerMessageHandler *port = list_entry(el, JSWorkerMessageHandler, link);
         if (!JS_IsNull(port->on_message_func)) {
@@ -2590,26 +2839,32 @@ static int js_os_poll(JSContext *ctx)
     if (ret > 0) {
         list_for_each(el, &ts->os_rw_handlers) {
             rh = list_entry(el, JSOSRWHandler, link);
-            if (!JS_IsNull(rh->rw_func[0]) &&
+            if (!JS_IsNull(rh->r_func) && FD_ISSET(rh->fd, &rfds)) {
-                FD_ISSET(rh->fd, &rfds)) {
+                call_handler(ctx, rh->r_func);
-                call_handler(ctx, rh->rw_func[0]);
                 /* must stop because the list may have been modified */
                 goto done;
             }
-            if (!JS_IsNull(rh->rw_func[1]) &&
+            if (!JS_IsNull(rh->w_func) && FD_ISSET(rh->fd, &wfds)) {
-                FD_ISSET(rh->fd, &wfds)) {
+                call_handler(ctx, rh->w_func);
-                call_handler(ctx, rh->rw_func[1]);
                 /* must stop because the list may have been modified */
                 goto done;
             }
         }
 
+        list_for_each(el, &ts->os_sock_handlers) {
+            sh = list_entry(el, JSOSSockHandler, link);
+            if (FD_ISSET(sh->sockfd, &rfds) || FD_ISSET(sh->sockfd, &wfds)) {
+                handle_socket_message(ctx, sh);
+                goto done;
+            }
+        }
+
         list_for_each(el, &ts->port_list) {
             JSWorkerMessageHandler *port = list_entry(el, JSWorkerMessageHandler, link);
             if (!JS_IsNull(port->on_message_func)) {
                 JSWorkerMessagePipe *ps = port->recv_pipe;
                 if (FD_ISSET(ps->waker.read_fd, &rfds)) {
-                    if (handle_posted_message(rt, ctx, port))
+                    if (handle_posted_message(ctx, port))
                         goto done;
                 }
             }
@@ -3421,6 +3676,265 @@ static JSValue js_os_dup2(JSContext *ctx, JSValueConst this_val,
 
 #endif /* !_WIN32 */
 
+static JSValue js_os_socket(JSContext *ctx, JSValueConst this_val,
+    int argc, JSValueConst *argv)
+{
+    int domain, type, protocol = 0;
+
+    if (JS_ToInt32(ctx, &domain, argv[0]))
+        return JS_EXCEPTION;
+    if (JS_ToInt32(ctx, &type, argv[1]))
+        return JS_EXCEPTION;
+    if (argc >= 3 && JS_ToInt32(ctx, &protocol, argv[2]))
+        return JS_EXCEPTION;
+
+    int socketfd = socket(domain, type, protocol);
+    int ret = js_get_sockerrno(socketfd);
+    if (ret < 0)
+        return JS_NewInt32(ctx, ret);
+#if defined(_WIN32)
+    u_long mode = 1;
+    ret = ioctlsocket(ret, FIONBIO, &mode);
+#else
+    ret = fcntl(ret, F_SETFL, fcntl(ret, F_GETFL, 0) | O_NONBLOCK);
+#endif
+    if (ret < 0)
+        return JS_NewInt32(ctx, ret);
+    return JS_NewInt32(ctx, socketfd);
+}
+
+static JSValue js_os_get_setsockopt(JSContext *ctx, JSValueConst this_val,
+    int argc, JSValueConst *argv, int magic)
+{
+    int sock, optname, ret;
+    uint8_t *optval;
+    socklen_t optlen;
+    size_t buflen;
+
+    if (JS_ToInt32(ctx, &sock, argv[0]))
+        return JS_EXCEPTION;
+    if (JS_ToInt32(ctx, &optname, argv[1]))
+        return JS_EXCEPTION;
+    optval = JS_GetArrayBuffer(ctx, &buflen, argv[2]);
+    if (!optval)
+        return JS_EXCEPTION;
+    optlen = buflen;
+
+    if (magic == 0)
+        ret = js_get_sockerrno(getsockopt(sock, SOL_SOCKET, optname, (char*)optval, &optlen));
+    else
+        ret = js_get_sockerrno(setsockopt(sock, SOL_SOCKET, optname, (char*)optval, optlen));
+    return JS_NewInt32(ctx, ret);
+}
+
+static JSValue js_os_getaddrinfo(JSContext *ctx, JSValueConst this_val,
+    int argc, JSValueConst *argv)
+{
+    int ret = -1;
+    if (!JS_IsString(argv[0]))
+        return JS_EXCEPTION;
+    const char* node = JS_ToCString(ctx, argv[0]);
+
+    const char* service = NULL;
+    struct addrinfo hints;
+    memset(&hints, 0, sizeof(hints));
+    if (!JS_IsNull(argv[1]) && JS_IsObject(argv[1])) {
+        JSValue prop_service = JS_GetPropertyStr(ctx, argv[1], "service");
+        JSValue prop_family = JS_GetPropertyStr(ctx, argv[1], "family");
+        JSValue prop_socktype = JS_GetPropertyStr(ctx, argv[1], "socktype");
+        if (JS_IsException(prop_service) ||
+            JS_IsException(prop_family) ||
+            JS_IsException(prop_socktype))
+            goto fail;
+        if (!JS_IsUndefined(prop_service))
+            service = JS_ToCString(ctx, prop_service);
+        if (!JS_IsUndefined(prop_family))
+            JS_ToInt32(ctx, &hints.ai_family, prop_family);
+        if (!JS_IsUndefined(prop_socktype))
+            JS_ToInt32(ctx, &hints.ai_socktype, prop_socktype);
+    }
+
+    struct addrinfo *ai;
+    ret = js_get_sockerrno(getaddrinfo(node, service, &hints, &ai));
+    if (ret)
+        goto fail;
+
+    struct addrinfo *it;
+    socklen_t objLen;
+    JSValue obj = JS_NewArray(ctx);
+    for (objLen = 0, it = ai; it; it = it->ai_next, objLen++) {
+        JSValue addrObj = JS_ToSockaddrObj(ctx,(struct sockaddr_storage *)it->ai_addr);
+        JSValue prop_socktype = JS_NewUint32(ctx, it->ai_socktype);
+        JS_DefinePropertyValueStr(ctx, addrObj, "socktype", prop_socktype, JS_PROP_C_W_E);
+        JS_SetPropertyUint32(ctx,obj,objLen,addrObj);
+    }
+
+    freeaddrinfo(ai);
+    JS_FreeCString(ctx, service);
+    JS_FreeCString(ctx, node);
+    return obj;
+fail:
+    JS_FreeValue(ctx, obj);
+    JS_FreeCString(ctx, service);
+    JS_FreeCString(ctx, node);
+    return JS_NewInt32(ctx, ret);
+}
+
+static JSValue js_os_bind(JSContext *ctx, JSValueConst this_val,
+    int argc, JSValueConst *argv)
+{
+    int sockfd, ret = 0;
+    struct sockaddr_storage sockaddr;
+
+    if (JS_ToInt32(ctx, &sockfd, argv[0]))
+        return JS_EXCEPTION;
+    if (JS_ToSockaddrStruct(ctx, argv[1], &sockaddr, sockfd))
+        return JS_EXCEPTION;
+    socklen_t addr_len = sockaddr.ss_family == AF_INET ? sizeof(struct sockaddr_in) :
+                         sockaddr.ss_family == AF_INET6 ? sizeof(struct sockaddr_in6) : 0;
+    ret = js_get_sockerrno(bind(sockfd, (struct sockaddr *)&sockaddr, addr_len));
+    return JS_NewInt32(ctx, ret);
+}
+
+static JSValue js_os_listen(JSContext *ctx, JSValueConst this_val,
+    int argc, JSValueConst *argv)
+{
+    int sockfd, backlog = SOMAXCONN, ret;
+
+    if (JS_ToInt32(ctx, &sockfd, argv[0]))
+        return JS_EXCEPTION;
+    if (argc >= 2 && JS_ToInt32(ctx, &backlog, argv[1]))
+        return JS_EXCEPTION;
+
+    ret = js_get_sockerrno(listen(sockfd, backlog));
+    return JS_NewInt32(ctx, ret);
+}
+
+static JSValue js_os_connect_accept(JSContext *ctx, JSValueConst this_val,
+    int argc, JSValueConst *argv, int magic)
+{
+    int sockfd, sockret = 0;
+
+    if (JS_ToInt32(ctx, &sockfd, argv[0]))
+        return JS_EXCEPTION;
+
+    struct sockaddr_storage sockaddr;
+    if (magic == MAGIC_SOCKET_CONNECT) {
+        if (JS_ToSockaddrStruct(ctx, argv[1], &sockaddr, sockfd) < 0){
+            JS_ThrowTypeError(ctx, "invalid sockaddr");
+            return JS_EXCEPTION;
+        }
+        socklen_t addr_len = sockaddr.ss_family == AF_INET ? sizeof(struct sockaddr_in) :
+                             sockaddr.ss_family == AF_INET6 ? sizeof(struct sockaddr_in6) : 0;
+        sockret = js_get_sockerrno(connect(sockfd, (struct sockaddr *)&sockaddr, addr_len));
+        #if defined(_WIN32)
+        if (sockret != -WSAEWOULDBLOCK)
+        #else
+        if (sockret != -EINPROGRESS)
+        #endif
+        {
+            JS_ThrowTypeError(ctx, "connect failed (%i)", sockret);
+            return JS_EXCEPTION;
+        }
+    } 
+    /* accept() pooling done in handle_socket_message() to avoid code duplicate */
+
+    JSValue resolving_funcs[2];
+    JSValue promise = JS_NewPromiseCapability(ctx, resolving_funcs);
+    if (JS_IsException(promise))
+        return JS_EXCEPTION;
+    
+    JSThreadState *ts = JS_GetRuntimeOpaque(JS_GetRuntime(ctx));
+    JSOSSockHandler *sh = js_mallocz(ctx, sizeof(*sh));
+    sh->sockfd = sockfd;
+    sh->magic = magic;
+    sh->resolve = JS_DupValue(ctx, resolving_funcs[0]);
+    sh->reject = JS_DupValue(ctx, resolving_funcs[1]);
+    #if defined(_WIN32)
+    sh->event = WSACreateEvent();
+    WSAEventSelect(sh->sockfd, sh->event, magic == MAGIC_SOCKET_CONNECT ? FD_CONNECT : FD_ACCEPT);
+    #endif
+    list_add_tail(&sh->link, &ts->os_sock_handlers);
+    JS_FreeValue(ctx, resolving_funcs[0]);
+    JS_FreeValue(ctx, resolving_funcs[1]);
+    return promise;
+}
+
+static JSValue js_os_recv_send(JSContext *ctx, JSValueConst this_val,
+                               int argc, JSValueConst *argv, int magic)
+{
+    JSThreadState *ts = JS_GetRuntimeOpaque(JS_GetRuntime(ctx));
+    JSOSSockHandler *sh = js_mallocz(ctx, sizeof(*sh));
+    if (!sh)
+        return JS_EXCEPTION;
+
+    JSValue resolving_funcs[2];
+    JSValue promise = JS_NewPromiseCapability(ctx, resolving_funcs);
+    if (JS_IsException(promise))
+        goto fail;
+
+    // store all our info for async processing
+    sh->magic = magic;
+    if (JS_ToInt32(ctx, &sh->sockfd, argv[0]))
+        goto fail;
+    unsigned bufArgvIdx = 1; // buffer is argv[1], unless sendto()
+    if (magic == MAGIC_SOCKET_SENDTO) {
+        bufArgvIdx = 2;
+        if (JS_ToSockaddrStruct(ctx, argv[1], &sh->sockaddr, sh->sockfd) < 0) {
+            JS_ThrowTypeError(ctx, "invalid sockaddr");
+            goto fail;
+        }
+    }
+    sh->buffer = JS_GetArrayBuffer(ctx, &sh->length, argv[bufArgvIdx]);
+    if (!sh->buffer)
+        goto fail;
+    if (argc > bufArgvIdx + 1) {
+        size_t length;
+        if (JS_ToIndex(ctx, &length, argv[bufArgvIdx + 1])) {
+            JS_ThrowRangeError(ctx, "Invalid length given");
+            goto fail;
+        }
+        if (length > sh->length) {
+            JS_ThrowRangeError(ctx, "recv/send array buffer overflow");
+            goto fail;
+        }
+        sh->length = length;
+    }
+    #if defined(_WIN32)
+    sh->event = WSACreateEvent();
+    int flags = (magic == MAGIC_SOCKET_SENDTO || magic == MAGIC_SOCKET_SEND) ? FD_WRITE : FD_READ;
+    WSAEventSelect(sh->sockfd, sh->event, flags);
+    #endif
+    sh->bufval = JS_DupValue(ctx, argv[bufArgvIdx]);
+    sh->resolve = JS_DupValue(ctx, resolving_funcs[0]);
+    sh->reject = JS_DupValue(ctx, resolving_funcs[1]);
+    list_add_tail(&sh->link, &ts->os_sock_handlers);
+    JS_FreeValue(ctx, resolving_funcs[0]);
+    JS_FreeValue(ctx, resolving_funcs[1]);
+    return promise;
+
+    fail:
+    JS_FreeValue(ctx, promise);
+    JS_FreeValue(ctx, resolving_funcs[0]);
+    JS_FreeValue(ctx, resolving_funcs[1]);
+    js_free(ctx, sh);
+    return JS_EXCEPTION;
+}
+
+static JSValue js_os_shutdown(JSContext *ctx, JSValueConst this_val,
+    int argc, JSValueConst *argv)
+{
+    int sockfd, how, ret;
+
+    if (JS_ToInt32(ctx, &sockfd, argv[0]))
+        return JS_EXCEPTION;
+    if (JS_ToInt32(ctx, &how, argv[1]))
+        return JS_EXCEPTION;
+
+    ret = js_get_sockerrno(shutdown(sockfd, how));
+    return JS_NewInt32(ctx, ret);
+}
+
 #ifdef USE_WORKER
 
 /* Worker */
@@ -3895,8 +4409,8 @@ static const JSCFunctionListEntry js_os_funcs[] = {
     JS_CFUNC_DEF("ttySetRaw", 1, js_os_ttySetRaw ),
     JS_CFUNC_DEF("remove", 1, js_os_remove ),
     JS_CFUNC_DEF("rename", 2, js_os_rename ),
-    JS_CFUNC_MAGIC_DEF("setReadHandler", 2, js_os_setReadHandler, 0 ),
+    JS_CFUNC_MAGIC_DEF("setReadHandler", 2, js_os_setReadWriteHandler, 0 ),
-    JS_CFUNC_MAGIC_DEF("setWriteHandler", 2, js_os_setReadHandler, 1 ),
+    JS_CFUNC_MAGIC_DEF("setWriteHandler", 2, js_os_setReadWriteHandler, 1 ),
     JS_CFUNC_DEF("signal", 2, js_os_signal ),
     OS_FLAG(SIGINT),
     OS_FLAG(SIGABRT),
@@ -3955,6 +4469,37 @@ static const JSCFunctionListEntry js_os_funcs[] = {
     JS_CFUNC_DEF("kill", 2, js_os_kill ),
     JS_CFUNC_DEF("dup", 1, js_os_dup ),
     JS_CFUNC_DEF("dup2", 2, js_os_dup2 ),
+#endif
+    /* SOCKET I/O */
+    JS_CFUNC_DEF("socket", 2, js_os_socket ),
+    JS_CFUNC_MAGIC_DEF("getsockopt", 3, js_os_get_setsockopt, 0 ),
+    JS_CFUNC_MAGIC_DEF("setsockopt", 3, js_os_get_setsockopt, 1 ),
+    JS_CFUNC_DEF("getaddrinfo", 2, js_os_getaddrinfo ),
+    JS_CFUNC_DEF("bind", 2, js_os_bind ),
+    JS_CFUNC_DEF("listen", 1, js_os_listen ),
+    JS_CFUNC_MAGIC_DEF("accept", 1, js_os_connect_accept, MAGIC_SOCKET_ACCEPT ),
+    JS_CFUNC_MAGIC_DEF("connect", 2, js_os_connect_accept, MAGIC_SOCKET_CONNECT ),
+    JS_CFUNC_MAGIC_DEF("recv", 3, js_os_recv_send, MAGIC_SOCKET_RECV ),
+    JS_CFUNC_MAGIC_DEF("send", 3, js_os_recv_send, MAGIC_SOCKET_SEND ),
+    JS_CFUNC_MAGIC_DEF("recvfrom", 4, js_os_recv_send, MAGIC_SOCKET_RECVFROM ),
+    JS_CFUNC_MAGIC_DEF("sendto", 3, js_os_recv_send, MAGIC_SOCKET_SENDTO ),
+    JS_CFUNC_DEF("shutdown", 2, js_os_shutdown ),
+    OS_FLAG(AF_INET),
+    OS_FLAG(AF_INET6),
+    OS_FLAG(SOCK_STREAM),
+    OS_FLAG(SOCK_DGRAM),
+    OS_FLAG(SOCK_RAW),
+    OS_FLAG(SO_REUSEADDR),
+    OS_FLAG(SO_RCVBUF),
+    OS_FLAG(SO_ERROR),
+#if defined(_WIN32)
+    JS_PROP_INT32_DEF("SHUT_RD", SD_RECEIVE, JS_PROP_CONFIGURABLE),
+    JS_PROP_INT32_DEF("SHUT_WR", SD_SEND, JS_PROP_CONFIGURABLE),
+    JS_PROP_INT32_DEF("SHUT_RDWR", SD_BOTH, JS_PROP_CONFIGURABLE),
+#else
+    OS_FLAG(SHUT_RD),
+    OS_FLAG(SHUT_WR),
+    OS_FLAG(SHUT_RDWR),
 #endif
 };
 
@@ -4090,6 +4635,7 @@ void js_std_init_handlers(JSRuntime *rt)
     }
     memset(ts, 0, sizeof(*ts));
     init_list_head(&ts->os_rw_handlers);
+    init_list_head(&ts->os_sock_handlers);
     init_list_head(&ts->os_signal_handlers);
     init_list_head(&ts->os_timers);
     init_list_head(&ts->port_list);
@@ -4121,6 +4667,11 @@ void js_std_free_handlers(JSRuntime *rt)
         free_rw_handler(rt, rh);
     }
 
+    list_for_each_safe(el, el1, &ts->os_sock_handlers) {
+        JSOSSockHandler *sh = list_entry(el, JSOSSockHandler, link);
+        free_sock_handler(rt, sh);
+    }
+
     list_for_each_safe(el, el1, &ts->os_signal_handlers) {
         JSOSSignalHandler *sh = list_entry(el, JSOSSignalHandler, link);
         free_sh(rt, sh);

release.sh

@@ -174,7 +174,7 @@ cp Makefile VERSION TODO Changelog readme.txt LICENSE \
 
 cp tests/*.js tests/*.patch tests/bjson.c $outdir/tests
 
-cp examples/*.js examples/*.c $outdir/examples
+cp examples/*.js examples/*.c examples/*.json $outdir/examples
 
 cp doc/quickjs.texi doc/quickjs.pdf doc/quickjs.html \
    $outdir/doc

test262.conf

@@ -140,7 +140,7 @@ Intl.NumberFormat-v3=skip
 Intl.RelativeTimeFormat=skip
 Intl.Segmenter=skip
 IsHTMLDDA
-iterator-helpers=skip
+iterator-helpers
 iterator-sequencing=skip
 json-modules
 json-parse-with-source=skip
@@ -183,7 +183,7 @@ RegExp.escape
 resizable-arraybuffer=skip
 rest-parameters
 Set
-set-methods=skip
+set-methods
 ShadowRealm=skip
 SharedArrayBuffer
 source-phase-imports-module-source=skip
@@ -304,14 +304,10 @@ test262/test/built-ins/String/prototype/split/cstm-split-on-string-primitive.js
 # spec updates it in this case)
 test262/test/staging/sm/Array/frozen-dense-array.js
 
+# does not match spec
+test262/test/staging/sm/Iterator/from/wrap-next-not-object-throws.js
+
 # not supported
-test262/test/staging/sm/Set/difference.js
-test262/test/staging/sm/Set/intersection.js
-test262/test/staging/sm/Set/is-disjoint-from.js
-test262/test/staging/sm/Set/is-subset-of.js
-test262/test/staging/sm/Set/is-superset-of.js
-test262/test/staging/sm/Set/symmetric-difference.js
-test262/test/staging/sm/Set/union.js
 test262/test/staging/sm/extensions/censor-strict-caller.js
 test262/test/staging/sm/JSON/parse-with-source.js