# Using the Toolchain The ARK front-end tools use the command line interaction mode and convert JS code into ARK bytecodes that can run on ARK runtime. The toolchain supports Windows, Linux, and macOS. ## JS Bytecode Compiler Front-end tools, converting JS source code into ARK bytecode, can be built by specifying the `--build-target` with `ark_ts2abc`. Build tools: ``` $ $ ./build.sh --product-name rk3568 --build-target ets_frontend_build ``` ``` $ cd out/rk3568/clang_x64/arkcompiler/ets_frontend/ $ ./es2abc [options] file.js ``` If no parameter is specified for **\[options\]**, an ARK binary file is generated by default.

Option

Description

Value Range

Default Value

--debug-info

Provides debug information.

-

-

--debugger-evaluate-expression

Evaluates base64 style expression in debugger

-

-

--dump-assembly

Outputs an assembly file.

-

-

--dump-ast

Prints the parsed AST(Abstract Syntax Tree)

-

-

--dump-debug-info

Prints debug Info

-

-

--dump-literal-buffer

Prints the content of literal buffer

-

-

--dump-size-stat

Displays statistics about bytecodes.

-

-

--extension

Specifies input file type

['js', 'ts', 'as']

-

--help

Displays help information.

-

-

--module

Compiles the code based on the ecmascript standard module.

-

-

--opt-level

Specifies the level for compilation optimization.

['0', '1', '2']

0

--output

Specifies the path of the output file.

-

-

--parse-only

Parse the input file only

-

-

--thread

Specifies the number of threads used to generate bytecode

0-Number of threads supported by your machine

0
## Disassembler ark\_disasm The ark\_disasm disassembler converts binary ARK bytecodes into readable text ARK bytecodes. Command: ``` ark_disasm [Option] Input file Output file ```

Option

Description

--debug

Enables the function for printing debug information.

--debug-file

Specifies the path of the debug information output file. The default value is std::cout.

--help

Displays help information.

--verbose

Outputs the comments of the output file.
Input file: ARK bytecodes in binary format Output file: ARK bytecodes in text format