Implement compile subcommand.

[krk]

Compile JS to bytecode and compress with zstd using the embedded dictionary.

There is no compatibility guarantee of lrt files, they can be executed by the llrt version that created them.

❯ target/release/llrt -h
LLRT (linux x64) 0.1.3-beta


Usage:
  llrt <filename>
  llrt -v | --version
  llrt -h | --help
  llrt -e | --eval <source>
  llrt compile input.js [output.lrt]
  llrt test <test_args>

Options:
  -v, --version     Print version information
  -h, --help        Print this help message
  -e, --eval        Evaluate the provided source code
  compile           Compile JS to bytecode and compress it with zstd:
                      if [output.lrt] is omitted, <input>.lrt is used.
                      lrt file is expected to be executed by the llrt version
                      that created it
  test              Run tests with provided arguments:
                      <test_args> -d <directory> <test-filter>

❯ target/release/llrt compile
compile: input filename is required.

❯ target/release/llrt compile fixtures/hello.js
❯ target/release/llrt fixtures/hello.lrt
hello world!

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[richarddavison]

LGTM!

[krk]

Thanks! Added tests.

[richarddavison]

@krk looks like Linux ARM compile segfaults. Can you take a look?
Edit: There might also be something funky in test runner (unrelated to this) since it ran for 6 hours...

[richarddavison]

Can we use a mod here and include! from build.rs?