harmony 鸿蒙Overview of the ArkTS Compilation Toolchain

2025-06-06
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Overview of the ArkTS Compilation Toolchain

To support the compilation of ArkTS applications, the ArkTS compilation and build SDK offers a comprehensive toolchain. This toolchain is integrated into the Hvigor task orchestration tool to compile ArkTS/TS/JS source code into Ark bytecode files (*.abc).

The compilation process begins with syntax transformation, including syntax check and UI transformation. To ensure source code security, ArkGuard is used to obfuscate the source code. Before the bytecode is written to disk, the toolchain checks whether custom bytecode modifications are required. If modifications are required, custom modification code is loaded and executed. After generating the bytecode file, the Disassembler tool is used to inspect the file content. For details about the bytecode, see Overview of Ark Bytecode.

The ArkTS compilation toolchain provides the following functions:

Syntax check: checks whether the ArkTS/TS syntax is correct.
UI transformation: converts ArkTS UI paradigm syntax to standard TS syntax.
Source code obfuscation: uses the ArkGuard tool to obfuscate the source code. You can enable this function based on service requirements.
Bytecode compilation: The Ark compiler generates Ark bytecode files (*.abc).
Custom bytecode modification: provides an entry for you to modify bytecode before it is written to disk.
Disassembly: uses the Disassembler tool to convert bytecode into human-readable assembly instructions.

The following figure shows the process details.

compilation-tool-overview