[Meta] Wasm-based experimental plugin support

[kwonoj]

Describe the feature

Originating from #2635 (comment) .

It looks like we are able to push forward wasm based plugin, this issue is filed for tracking its subtasks to officially release features. Still it'll be exposed under experimental flag to iterate implementaion with possibly breaking changes.

• runtime replacement (refactor(swc/plugin): replace wasm runtime #3196 / Compile from source, c-api to arm7hf wasmerio/wasmer#2324) : hope to use wasmer.
• deprecate abi_stable (refactor(swc/plugins): load wasm plugin with cache (#3167 part 1) #3179)
• deprecate plugin_ast
• swc_common/plugin to utilize https://wasmerio.github.io/wasmer/crates/doc/wasmer/macro.imports.html
• support loading / bytecode caching wasm from swc_plugin_runner (refactor(swc/plugins): load wasm plugin with cache (#3167 part 1) #3179)
• configuration support for bytecode cache location (refactor(swc/plugins): load wasm plugin with cache (#3167 part 1) #3179)
• compiled bytecode cache support
• swc_cli supports for plugin project scafolding (we'll consolidate https://github.com/swc-project/swc-dev/blob/main/src/main.rs into swc's subcommand)
• writing short adr (docs(adr): setting up adr, start to write 00001-plugin #3249)
• Cache expiration strategy (Probably will not be implemented in experimental phase, need bit more thought. May spin off new issue later).
• Optimize wasm loading strategy: current impl (

  swc/crates/swc/src/plugin.rs

  Line 19 in fc4c670

  pub fn plugins(config: crate::config::JscExperimental) -> impl Fold {

  ) is incorrect as it is being called per each file transform operation. We should read plugin binary only once per whole transform. (refactor(swc/plugin): avoid redundant filesystem read #3186)
• println / dbg! or tracing support (feat(swc/plugin_runner): support plugin targets wasm32-wasi #3271)
• error handling (feat(swc/common): implement PluginError #3300)

[kwonoj]

Subtasks:

• Plugin scaffolding support #3311
• Support swc_common::GLOBALS in plugin #3309
• Support swc_common::errors::HANDLER in plugin #3308
• Support llvm compiler backend for the plugin #3307

Now plugin implementation reached at least working stage, further tasks will be filed separately instead of using meta issue. This issue will be closed soon once a few remaining tasks here make some progress.

[kwonoj]

Closing as initial completion.

Please use #3540 for the suggestions / discussions, and create a new issue if there's a bug need to be fixed.

[swc-bot]

This closed issue has been automatically locked because it had no new activity for a month. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.