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https://gitee.com/openharmony/arkcompiler_ets_runtime/issues/I71L2N Signed-off-by: g00416891 <guobingbing3@huawei.com> Change-Id: I43a9f4ed272078cc405860a8764ecb24b11d3b8b
78 lines
3.2 KiB
Markdown
78 lines
3.2 KiB
Markdown
# ArkCompiler JS Runtime
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### Introduction
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ArkCompiler JS Runtime is the default JS runtime on OpenHarmony. It supports ECMAScript libraries and efficient container libraries. It also provides a set of native APIs for C++ and JS interaction and a variety of garbage collectors that features high performance.
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For more information, see [ArkCompiler JS Runtime](https://gitee.com/openharmony/docs/blob/master/en/readme/ARK-Runtime-Subsystem.md).
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**ArkCompiler JS Runtime architecture**
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## Directory Structure
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```
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/arkcompiler/ets_runtime
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├─ ecmascript # Implementation of ArkCompiler JS Runtime, including the ECMAScript library, interpreter, and memory management
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│ ├─ base # Base helper class
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│ ├─ builtins # ECMAScript libraries
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│ ├─ compiler # JS compiler
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│ ├─ containers # Non-ECMAScript containers
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│ ├─ dfx # Memory and profiling tool
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│ ├─ ic # Inline cache module
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│ ├─ interpreter # JS interpreter
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│ ├─ jobs # Queue of jobs
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│ ├─ js_vm # Command line tool
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│ ├─ jspandafile # abc file management module
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│ ├─ mem # Memory management module
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│ ├─ module # ECMAScript module
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│ ├─ napi # C++ API module
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│ ├─ taskpool # Task pool
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│ ├─ regexp # Regular expression engine module
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│ ├─ snapshot # Snapshot module
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│ ├─ stubs # Runtime stub functions
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│ ├─ tests # Unit test cases
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│ ├─ debugger # JS debugger
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│ ├─ trampoline # Trampoline function
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│ ├─ ts_type # TS type management module
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└─ test # Module test cases
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```
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## Constraints
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* Only the ArkCompiler bytecode files generated by ts2abc, which is the ArkCompiler JS frontend toolchain, can be run.
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* Only the ES2021 standard and strict modes are supported.
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* Functions cannot be dynamically created using strings, such as new Function("console.log(1);")).
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## Building
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```
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$./build.sh --product-name hispark_taurus_standard --build-target ark_js_host_linux_tools_packages
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```
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### Available APIs
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See [NAPI](https://gitee.com/openharmony/arkui_napi/blob/master/README.md).
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### Usage
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For details about how to generate JS bytecodes, see [Using the Toolchain](docs/using-the-toolchain.md).
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To run bytecodes:
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```
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LD_LIBRARY_PATH=out/hispark_taurus/clang_x64/arkcompiler/ets_runtime:out/hispark_taurus/clang_x64/thirdparty/icu:prebuilts/clang/ohos/linux-x86_64/llvm/lib ./out/hispark_taurus/clang_x64/arkcompiler/ets_runtime/ark_js_vm helloworld.abc
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```
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For more information, see [ARK Runtime Usage Guide](https://gitee.com/openharmony/arkcompiler_ets_runtime/blob/master/
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docs/ARK-Runtime-Usage-Guide.md).
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## Repositories Involved
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[arkcompiler\_runtime\_core](https://gitee.com/openharmony/arkcompiler_runtime_core)
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**[arkcompiler\_ets\_runtime](https://gitee.com/openharmony/arkcompiler_ets_runtime)**
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[arkcompiler\_ets\_frontend](https://gitee.com/openharmony/arkcompiler_ets_frontend)
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