NAME

kiesel — A JavaScript engine written in Zig

SYNOPSIS

DESCRIPTION

kiesel is a JavaScript engine written from scratch with the eventual goal of full support for the latest ECMAScript standard.

The command line options are as follows:

-c, --command command

Runs command instead of reading from a file.

-d, --debug

Enables the debug mode, offering a more detailed output.

--disable-gc

Disables the garbage collection, resulting in memory leaks.

-m, --module

Runs the code as a module instead of a script.

--print-ast

Prints the parsed AST for file or every statement in the interactive input. Continues with normal execution afterwards.

--print-bytecode

Prints the generated bytecode for file or every statement in the interactive input. Continues with normal execution afterwards.

--print-gc-warnings

Prints the warnings from the garbage collector, e.g. out-of-memory situations.

--print-promise-rejection-warnings

Prints promise rejection warnings.

-p, --print-result

Prints the evaluated result for file at the end of its execution. This behavior is default when running in interactive mode.

-v, --version

Prints the version and exits.

-h, --help

Prints a help text and exits.

EXIT STATUS

The kiesel utility exits 0 on success, and >0 if an error occurs.

EXAMPLES

Place the following in a file named ‘script.js’:

const words = [ "meow :3", "awawawa", "uwu" ];
for (let i = 0; i < words.length: i++) {
	console.log(words[i]);
}

Executing the following command:

meow :3
awawawa
uwu

SEE ALSO

porffor(1)

STANDARDS

Ecma International, ECMA-262, https://tc39.es/ecma262/.

HISTORY

The kiesel JavaScript engine has been in development since mid-2023.

AUTHORS

The kiesel JavaScript engine was written by Linus Groh <mail@linusgroh.de>. The manual page was written by
Clara Engler ⟨https://cve.cx⟩.

BUGS

Yes. Awawawawa :3. The bug tracker is hosted on Codeberg.