arkcompiler_ets_runtime/docs/development-example.md

Development Example

• HelloWorld
• Performing Test Case Test262

This section describes how to develop and test ARK runtime.

HelloWorld

Preparations

1. Run the following command to compile ARK runtime:

./build.sh --product-name Hi3516DV300 --build-target ark_js_host_linux_tools_packages  # arm platform and host side running tool

2. Run the following command to compile the ARK frontend:

./build.sh --product-name Hi3516DV300 --build-target ark_ts2abc_build

NOTE: Run the compilation commands in the project root directory.

Running hello-world.js

Create the hello-world.js file and write the following source code into the file:

 print("Hello World!!!");

Run the hello-world.js file.

1. Use the ARK frontend to create the hello-world.abc file.

   node --expose-gc /your code path/out/hi3516dv300/clang_x64/ark/ark/build/src/index.js hello-world.js
   

2. Run the hello-world.abc file.

   1. Set the search path.

      export LD_LIBRARY_PATH= out/hi3516dv300/clang_x64/ark/ark:out/hi3516dv300/clang_x64/ark/ark_js_runtime:out/hi3516dv300/clang_x64/global/i18n_standard:prebuilts/clang/ohos/linux-x86_64/llvm/lib
      

   2. Run ark_js_vm.

      /your code path/out/hi3516dv300/clang_x64/ark/ark_js_runtime/ark_js_vm hello-world.abc
      

      The execution result is as follows:

      Hello World!!!
      

NOTE: In the preceding command, your code path indicates the source code directory.

Disassembling hello-world.abc

Run the following command to export the result to the output file:

./your code path/out/hi3516dv300/clang_x64/ark/ark/ark_disasm hello-world.abc output

The output is as follows:

#
# source binary: hello-world.abc
#

# ====================
# LITERALS

# ====================
# RECORDS

.record _ESAnnotation <external>

.record _ESModuleMode {
	u8 isModule
}

# ====================
# METHODS

.function any func_main_0_any_any_any_any_(any a0, any a1, any a2) <static> {
	mov.dyn v2, a2
	mov.dyn v1, a1
	mov.dyn v0, a0
	builtin.acc
	sta.dyn v5
	builtin.idi "print", 0x0 // Load the print function.
	sta.dyn v3
	lda.str "Hello World!!!"  // Load the Hello World!!! string.
	sta.dyn v4
	builtin.tern3 v3, v4  // Call the print function.
	builtin.acc
}

Performing Test Case Test262

Preparations

1. Run the following command to compile ARK runtime:

./build.sh --product-name Hi3516DV300 --build-target ark_js_host_linux_tools_packages

2. Run the following command to compile the ARK frontend:

./build.sh --product-name Hi3516DV300 --build-target ark_ts2abc_build

NOTE: Run the compilation commands in the project root directory.

Running Test262

Run the run_test262.py script to download and run the Test262 test case.

Command:

python3 test262/run_test262.py [options]

Run the script in Project root directory/ark/ts2abc.

Option	Description
--h, --help	Displays help information.
--dir DIR	Specifies the directory to test.
--file FILE	Specifies the file to test.
--mode [{1, 2, 3}]	Specifies the mode, which can be any of the following: 1: default 2: strict mode only 3: default and strict modes
--es51	Runs Test262 ES5.1.
--es2015 [{all, only}]	Runs Test262 ES2015. all: all cases only: only ES2015
--esnext	Runs Test262-ES.next.
--engine FILE	Runs other engines and specifies binary files (such as d8, hermes, jsc, and qjs).
--babel	Specifies whether to use Babel to convert code.
--timeout TIMEOUT	Specifies the test timeout period in ms.
--threads THREADS	Specifies the number of concurrent threads.
--hostArgs HOSTARGS	Specifies the command line parameters sent to the eshost.
--ark-tool ARK_TOOL	Specifies the binary tool of ARK runtime.
--ark-frontend-tool ARK_FRONTEND_TOOL	Specifies the ARK front-end conversion tool.
--libs-dir LIBS_DIR	Specifies the set of .so dependency file paths, separated by colons (:).
--ark-frontend [{ts2panda, es2panda}]	Specifies the frontend.

Example

• Run test case ES51.

   python3 test262/run_test262.py --es51
  

• Run test case ES2015 only.

   python3 test262/run_test262.py --es2015 only
  

• Run all ES2015 and ES51 test cases.

   python3 test262/run_test262.py --es2015 all
  

• Run a test case.

   python3 test262/run_test262.py --file test262/data/test_es5/language/statements/break/12.8-1.js
  

• Run all test cases in a directory.

   python3 test262/run_test262.py --dir test262/data/test_es5/language/statements
  

• Use Babel to convert a test case into ES5 and then run the test case.

   python3 test262/run_test262.py  --babel --file test262/data/test_es5/language/statements/break/12.8-1.js
  

Test Output

The results of all Test262 test cases are available in the Project root directory/ark/ts2abc/out. The test result in the shell is as follows:

$python3 test262/run_test262.py --file test262/data/test_es2015/built-ins/Array/15.4.5.1-5-1.js

Wait a moment..........
Test command:
node
        test262/harness/bin/run.js
        --hostType=panda
        --hostPath=python3
        --hostArgs='-B test262/run_sunspider.py --ark-tool=/your code path/out/ohos-arm-release/clang_x64/ark/ark_js_runtime/ark_js_vm --ark-frontend-tool=/your code path/out/ohos-arm-release/clang_x64/ark/ark/build/src/index.js --libs-dir=/your code path/out/ohos-arm-release/clang_x64/ark/ark:/your code path/out/ohos-arm-release/clang_x64/global/i18n:/your code path/prebuilts/clang/ohos/linux-x86_64/llvm/lib/ --ark-frontend=ts2panda'
        --threads=15
        --mode=only strict mode
        --timeout=60000
        --tempDir=build/test262
        --test262Dir=test262/data
        --saveCompiledTests
        test262/data/test_es5/language/statements/break/12.8-1.js

PASS test262/data/test_es2015/built-ins/Array/15.4.5.1-5-1.js (strict mode)
Ran 1 tests
1 passed
0 failed
used time is: 0:01:04.439642