rqjs_ext/

vm.rs

// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
use std::{
    cmp::min,
    collections::{HashMap, HashSet},
    ffi::CStr,
    future::Future,
    str::FromStr,
    sync::{Arc, Mutex},
};

// use once_cell::sync::Lazy;

// use chrono::Utc;
// use ring::rand::SecureRandom;
use rquickjs::{
    atom::PredefinedAtom, context::EvalOptions, function::Opt, prelude::Func, qjs, CatchResultExt,
    CaughtError, Ctx, Error, Function, IntoJs, Module, Object, Promise, Result, String as JsString,
    Value,
};
// use tokio::sync::oneshot::{self, Receiver};
// use tracing::trace;
// use zstd::{bulk::Decompressor, dict::DecoderDictionary};

// use crate::modules::{
//     console,
//     crypto::SYSTEM_RANDOM,
//     path::{dirname, join_path, resolve_path},
// };

// use crate::{
//     bytecode::{BYTECODE_COMPRESSED, BYTECODE_UNCOMPRESSED, BYTECODE_VERSION, SIGNATURE_LENGTH},
//     environment,
//     json::{parse::json_parse, stringify::json_stringify_replacer_space},
//     number::number_to_string,
//     utils::{
//         clone::structured_clone,
//         io::get_js_path,
//         object::{get_bytes, ObjectExt},
//     },
// };

// pub static TIME_ORIGIN: AtomicUsize = AtomicUsize::new(0);

// #[inline]
// pub fn uncompressed_size(input: &[u8]) -> StdResult<(usize, &[u8]), io::Error> {
//     let size = input.get(..4).ok_or(io::ErrorKind::InvalidInput)?;
//     let size: &[u8; 4] = size.try_into().map_err(|_| io::ErrorKind::InvalidInput)?;
//     let uncompressed_size = u32::from_le_bytes(*size) as usize;
//     let rest = &input[4..];
//     Ok((uncompressed_size, rest))
// }

// pub(crate) static COMPRESSION_DICT: &[u8] = include_bytes!("../../bundle/lrt/compression.dict");

// static DECOMPRESSOR_DICT: Lazy<DecoderDictionary> =
//     Lazy::new(|| DecoderDictionary::copy(COMPRESSION_DICT));

fn print(value: String, stdout: Opt<bool>) {
    if stdout.0.unwrap_or_default() {
        println!("{value}");
    } else {
        eprintln!("{value}")
    }
}

// #[derive(Debug)]
// pub struct BinaryResolver {
//     paths: Vec<PathBuf>,
//     cwd: PathBuf,
// }
// impl BinaryResolver {
//     pub fn add_path<P: Into<PathBuf>>(&mut self, path: P) -> &mut Self {
//         self.paths.push(path.into());
//         self
//     }

//     pub fn get_bin_path(path: &Path) -> PathBuf {
//         path.with_extension("lrt")
//     }

//     pub fn normalize<P: AsRef<Path>>(path: P) -> PathBuf {
//         let ends_with_slash = path.as_ref().to_str().map_or(false, |s| s.ends_with('/'));
//         let mut normalized = PathBuf::new();
//         for component in path.as_ref().components() {
//             match &component {
//                 Component::ParentDir => {
//                     if !normalized.pop() {
//                         normalized.push(component);
//                     }
//                 },
//                 _ => {
//                     normalized.push(component);
//                 },
//             }
//         }
//         if ends_with_slash {
//             normalized.push("");
//         }
//         normalized
//     }
// }

// impl Default for BinaryResolver {
//     fn default() -> Self {
//         let cwd = env::current_dir().unwrap();
//         Self {
//             cwd,
//             paths: Vec::with_capacity(10),
//         }
//     }
// }

// #[allow(clippy::manual_strip)]
// impl Resolver for BinaryResolver {
//     fn resolve(&mut self, _ctx: &Ctx, base: &str, name: &str) -> Result<String> {
//         trace!("Try resolve \"{}\" from \"{}\"", name, base);

//         if BYTECODE_CACHE.contains_key(name) {
//             return Ok(name.to_string());
//         }

//         let base_path = Path::new(base);
//         let base_path = if base_path.is_dir() {
//             if base_path == self.cwd {
//                 Path::new(".")
//             } else {
//                 base_path
//             }
//         } else {
//             base_path.parent().unwrap_or(base_path)
//         };

//         let normalized_path = base_path.join(name);

//         let normalized_path = BinaryResolver::normalize(normalized_path);
//         let mut normalized_path = normalized_path.to_str().unwrap();
//         let cache_path = if normalized_path.starts_with("./") {
//             &normalized_path[2..]
//         } else {
//             normalized_path
//         };

//         let cache_key = Path::new(cache_path).with_extension("js");
//         let cache_key = cache_key.to_str().unwrap();

//         trace!("Normalized path: {}, key: {}", normalized_path, cache_key);

//         if BYTECODE_CACHE.contains_key(cache_key) {
//             return Ok(cache_key.to_string());
//         }

//         if BYTECODE_CACHE.contains_key(base) {
//             normalized_path = name;
//             if Path::new(normalized_path).exists() {
//                 return Ok(normalized_path.to_string());
//             }
//         }

//         if Path::new(normalized_path).exists() {
//             return Ok(normalized_path.to_string());
//         }

//         let path = self
//             .paths
//             .iter()
//             .find_map(|path| {
//                 let path = path.join(normalized_path);
//                 let bin_path = BinaryResolver::get_bin_path(&path);
//                 if bin_path.exists() {
//                     return Some(bin_path);
//                 }
//                 get_js_path(path.to_str().unwrap())
//             })
//             .ok_or_else(|| Error::new_resolving(base, name))?;

//         Ok(path.into_os_string().into_string().unwrap())
//     }
// }

// #[derive(Debug)]
// pub struct BinaryLoader;

// impl Default for BinaryLoader {
//     fn default() -> Self {
//         Self
//     }
// }

// struct RawLoaderContainer<T>
// where
//     T: RawLoader + 'static,
// {
//     loader: T,
//     cwd: String,
// }
// impl<T> RawLoaderContainer<T>
// where
//     T: RawLoader + 'static,
// {
//     fn new(loader: T) -> Self {
//         Self {
//             loader,
//             cwd: std::env::current_dir()
//                 .unwrap()
//                 .to_string_lossy()
//                 .to_string(),
//         }
//     }
// }

// unsafe impl<T> RawLoader for RawLoaderContainer<T>
// where
//     T: RawLoader + 'static,
// {
//     #[allow(clippy::manual_strip)]
//     unsafe fn raw_load<'js>(&mut self, ctx: &Ctx<'js>, name: &str) -> Result<Module<'js>> {
//         let res = self.loader.raw_load(ctx, name)?;

//         let name = if name.starts_with("./") {
//             &name[2..]
//         } else {
//             name
//         };

//         if name.starts_with('/') {
//             set_import_meta(&res, name)?;
//         } else {
//             set_import_meta(&res, &format!("{}/{}", &self.cwd, name))?;
//         };

//         Ok(res)
//     }
// }

// impl Loader for BinaryLoader {
//     fn load(&mut self, _ctx: &Ctx<'_>, name: &str) -> Result<ModuleData> {
//         trace!("Loading module: {}", name);
//         if let Some(bytes) = BYTECODE_CACHE.get(name) {
//             trace!("Loading embedded module: {}", name);

//             return load_bytecode_module(name, bytes);
//         }
//         let path = PathBuf::from(name);
//         let mut bytes: &[u8] = &std::fs::read(path)?;

//         if name.ends_with(".lrt") {
//             trace!("Loading binary module: {}", name);
//             return load_bytecode_module(name, bytes);
//         }
//         if bytes.starts_with(b"#!") {
//             bytes = bytes.splitn(2, |&c| c == b'\n').nth(1).unwrap_or(bytes);
//         }
//         Ok(ModuleData::source(name, bytes))
//     }
// }

// pub fn load_bytecode_module(name: &str, buf: &[u8]) -> Result<ModuleData> {
//     let bytes = load_module(buf)?;
//     Ok(unsafe { ModuleData::bytecode(name, bytes) })
// }

// fn load_module(input: &[u8]) -> Result<Vec<u8>> {
//     let (_, compressed, input) = get_bytecode_signature(input)?;

//     if compressed {
//         let (size, input) = uncompressed_size(input)?;
//         let mut buf = Vec::with_capacity(size);
//         let mut decompressor = Decompressor::with_prepared_dictionary(&DECOMPRESSOR_DICT)?;
//         decompressor.decompress_to_buffer(input, &mut buf)?;
//         return Ok(buf);
//     }

//     Ok(input.to_vec())
// }

// fn get_bytecode_signature(input: &[u8]) -> StdResult<(&[u8], bool, &[u8]), io::Error> {
//     let raw_signature = input
//         .get(..SIGNATURE_LENGTH)
//         .ok_or(io::Error::new::<String>(
//             io::ErrorKind::InvalidInput,
//             "Invalid bytecode signature length".into(),
//         ))?;

//     let (last, signature) = raw_signature.split_last().unwrap();

//     if signature != BYTECODE_VERSION.as_bytes() {
//         return Err(io::Error::new::<String>(
//             io::ErrorKind::InvalidInput,
//             "Invalid bytecode version".into(),
//         ));
//     }

//     let mut compressed = None;
//     if *last == BYTECODE_COMPRESSED {
//         compressed = Some(true)
//     } else if *last == BYTECODE_UNCOMPRESSED {
//         compressed = Some(false)
//     }

//     let rest = &input[SIGNATURE_LENGTH..];
//     Ok((
//         signature,
//         compressed.ok_or(io::Error::new::<String>(
//             io::ErrorKind::InvalidInput,
//             "Invalid bytecode signature".into(),
//         ))?,
//         rest,
//     ))
// }

// pub struct Vm {
//     pub runtime: AsyncRuntime,
//     pub ctx: AsyncContext,
// }

struct LifetimeArgs<'js>(Ctx<'js>);

#[allow(dead_code)]
struct ExportArgs<'js>(Ctx<'js>, Object<'js>, Value<'js>, Value<'js>);

// pub struct VmOptions {
//     pub module_builder: crate::module_builder::ModuleBuilder,
//     pub max_stack_size: usize,
//     pub gc_threshold_mb: usize,
// }

// impl Default for VmOptions {
//     fn default() -> Self {
//         Self {
//             module_builder: crate::module_builder::ModuleBuilder::with_default(),
//             max_stack_size: 512 * 1024,
//             gc_threshold_mb: {
//                 const DEFAULT_GC_THRESHOLD_MB: usize = 20;

//                 let gc_threshold_mb: usize = env::var(environment::ENV_LLRT_GC_THRESHOLD_MB)
//                     .map(|threshold| threshold.parse().unwrap_or(DEFAULT_GC_THRESHOLD_MB))
//                     .unwrap_or(DEFAULT_GC_THRESHOLD_MB);

//                 gc_threshold_mb * 1024 * 1024
//             },
//         }
//     }
// }

// impl Vm {
//     pub const ENV_LAMBDA_TASK_ROOT: &'static str = "LAMBDA_TASK_ROOT";

//     pub async fn from_options(
//         vm_options: VmOptions,
//     ) -> StdResult<Self, Box<dyn std::error::Error + Send + Sync>> {
//         if TIME_ORIGIN.load(Ordering::Relaxed) == 0 {
//             let time_origin = Utc::now().timestamp_nanos_opt().unwrap_or_default() as usize;
//             TIME_ORIGIN.store(time_origin, Ordering::Relaxed)
//         }

//         SYSTEM_RANDOM
//             .fill(&mut [0; 8])
//             .expect("Failed to initialize SystemRandom");

//         let mut file_resolver = FileResolver::default();
//         let mut binary_resolver = BinaryResolver::default();
//         let mut paths: Vec<&str> = Vec::with_capacity(10);

//         paths.push(".");

//         let task_root = env::var(Self::ENV_LAMBDA_TASK_ROOT).unwrap_or_else(|_| String::from(""));
//         let task_root = task_root.as_str();
//         if cfg!(debug_assertions) {
//             paths.push("bundle");
//         } else {
//             paths.push("/opt");
//         }

//         if !task_root.is_empty() {
//             paths.push(task_root);
//         }

//         for path in paths.iter() {
//             file_resolver.add_path(*path);
//             binary_resolver.add_path(*path);
//         }

//         let (builtin_resolver, module_loader, module_names, init_globals) =
//             vm_options.module_builder.build();

//         let resolver = (builtin_resolver, binary_resolver, file_resolver);

//         let loader = RawLoaderContainer::new((
//             module_loader,
//             BinaryLoader,
//             BuiltinLoader::default(),
//             ScriptLoader::default()
//                 .with_extension("mjs")
//                 .with_extension("cjs"),
//         ));

//         let runtime = AsyncRuntime::new()?;
//         runtime.set_max_stack_size(vm_options.max_stack_size).await;
//         runtime.set_gc_threshold(vm_options.gc_threshold_mb).await;
//         runtime.set_loader(resolver, loader).await;
//         let ctx = AsyncContext::full(&runtime).await?;
//         ctx.with(|ctx| {
//             for init_global in init_globals {
//                 init_global(&ctx)?;
//             }
//             init(&ctx, module_names)?;
//             Ok::<_, Error>(())
//         })
//         .await?;

//         Ok(Vm { runtime, ctx })
//     }

//     pub async fn new() -> StdResult<Self, Box<dyn std::error::Error + Send + Sync>> {
//         let vm = Self::from_options(VmOptions::default()).await?;
//         Ok(vm)
//     }

//     pub fn load_module<'js>(ctx: &Ctx<'js>, filename: PathBuf) -> Result<Object<'js>> {
//         Module::import(ctx, filename.to_string_lossy().to_string())
//     }

//     pub async fn run_module(ctx: &AsyncContext, filename: &Path) {
//         Self::run_and_handle_exceptions(ctx, |ctx| {
//             let _res = Vm::load_module(&ctx, filename.to_path_buf())?;
//             Ok(())
//         })
//         .await
//     }

//     pub async fn run_and_handle_exceptions<'js, F>(ctx: &AsyncContext, f: F)
//     where
//         F: FnOnce(Ctx) -> rquickjs::Result<()> + Send,
//     {
//         ctx.with(|ctx| {
//             f(ctx.clone())
//                 .catch(&ctx)
//                 .unwrap_or_else(|err| Self::print_error_and_exit(&ctx, err));
//         })
//         .await;
//     }

//     pub fn print_error_and_exit<'js>(ctx: &Ctx<'js>, err: CaughtError<'js>) -> ! {
//         let mut error_str = String::new();
//         write!(error_str, "Error: {:?}", err).unwrap();
//         if let Ok(error) = err.into_value(ctx) {
//             if console::log_std_err(ctx, Rest(vec![error.clone()]), console::LogLevel::Fatal)
//                 .is_err()
//             {
//                 eprintln!("{}", error_str);
//             };
//             exit(1)
//         } else {
//             eprintln!("{}", error_str);
//             exit(1)
//         };
//     }

//     pub async fn idle(self) -> StdResult<(), Box<dyn std::error::Error + Sync + Send>> {
//         self.runtime.idle().await;

//         drop(self.ctx);
//         drop(self.runtime);
//         Ok(())
//     }
// }

use tokio::sync::oneshot::Receiver;

use crate::{
    json::{parse::json_parse, stringify::json_stringify_replacer_space},
    modules::path::{dirname, join_path, resolve_path},
    number::number_to_string,
    utils::object::{get_bytes, ObjectExt},
};

fn json_parse_string<'js>(ctx: Ctx<'js>, value: Value<'js>) -> Result<Value<'js>> {
    let bytes = get_bytes(&ctx, value)?;
    json_parse(&ctx, bytes)
}

fn run_gc(ctx: Ctx<'_>) {
    // trace!("Running GC");

    unsafe {
        let rt = qjs::JS_GetRuntime(ctx.as_raw().as_ptr());
        qjs::JS_RunGC(rt);
    };
}

use crate::utils::clone::structured_clone;
fn init(ctx: &Ctx<'_>, module_names: HashSet<&'static str>) -> Result<()> {
    let globals = ctx.globals();

    globals.set("__gc", Func::from(run_gc))?;

    let number: Function = globals.get(PredefinedAtom::Number)?;
    let number_proto: Object = number.get(PredefinedAtom::Prototype)?;
    number_proto.set(PredefinedAtom::ToString, Func::from(number_to_string))?;

    globals.set("global", ctx.globals())?;
    globals.set("self", ctx.globals())?;
    globals.set("load", Func::from(load))?;
    globals.set("print", Func::from(print))?;
    globals.set(
        "structuredClone",
        Func::from(|ctx, value, options| structured_clone(&ctx, value, options)),
    )?;

    let json_module: Object = globals.get(PredefinedAtom::JSON)?;
    json_module.set("parse", Func::from(json_parse_string))?;
    json_module.set(
        "stringify",
        Func::from(|ctx, value, replacer, space| {
            struct StringifyArgs<'js>(Ctx<'js>, Value<'js>, Opt<Value<'js>>, Opt<Value<'js>>);
            let StringifyArgs(ctx, value, replacer, space) =
                StringifyArgs(ctx, value, replacer, space);

            let mut space_value = None;
            let mut replacer_value = None;

            if let Some(replacer) = replacer.0 {
                if let Some(space) = space.0 {
                    if let Some(space) = space.as_string() {
                        let mut space = space.clone().to_string()?;
                        space.truncate(20);
                        space_value = Some(space);
                    }
                    if let Some(number) = space.as_int() {
                        if number > 0 {
                            space_value = Some(" ".repeat(min(10, number as usize)));
                        }
                    }
                }
                replacer_value = Some(replacer);
            }

            json_stringify_replacer_space(&ctx, value, replacer_value, space_value)
                .map(|v| v.into_js(&ctx))?
        }),
    )?;

    #[allow(clippy::arc_with_non_send_sync)]
    let require_in_progress: Arc<Mutex<HashMap<String, Object>>> =
        Arc::new(Mutex::new(HashMap::new()));

    #[allow(clippy::arc_with_non_send_sync)]
    let require_exports: Arc<Mutex<Option<Value>>> = Arc::new(Mutex::new(None));
    let require_exports_ref = require_exports.clone();
    let require_exports_ref_2 = require_exports.clone();

    let js_bootstrap = Object::new(ctx.clone())?;
    js_bootstrap.set(
        "moduleExport",
        Func::from(move |ctx, obj, prop, value| {
            let ExportArgs(_ctx, _, _, value) = ExportArgs(ctx, obj, prop, value);
            let mut exports = require_exports.lock().unwrap();
            exports.replace(value);
            Result::Ok(true)
        }),
    )?;
    js_bootstrap.set(
        "exports",
        Func::from(move |ctx, obj, prop, value| {
            let ExportArgs(ctx, _, prop, value) = ExportArgs(ctx, obj, prop, value);
            let mut exports = require_exports_ref.lock().unwrap();
            let exports = if exports.is_some() {
                exports.as_ref().unwrap()
            } else {
                exports.replace(Object::new(ctx.clone())?.into_value());
                exports.as_ref().unwrap()
            };
            exports.as_object().unwrap().set(prop, value)?;
            Result::Ok(true)
        }),
    )?;
    globals.set("__bootstrap", js_bootstrap)?;

    globals.set(
        "require",
        Func::from(move |ctx, specifier: String| -> Result<Value> {
            let LifetimeArgs(ctx) = LifetimeArgs(ctx);
            let specifier = if let Some(striped_specifier) = &specifier.strip_prefix("node:") {
                striped_specifier.to_string()
            } else {
                specifier
            };
            let import_name = if module_names.contains(specifier.as_str())
                // || BYTECODE_CACHE.contains_key(&specifier)
                || specifier.starts_with('/')
            {
                specifier
            } else {
                let module_name = get_script_or_module_name(ctx.clone());
                let abs_path = resolve_path([module_name].iter());
                let import_directory = dirname(abs_path);
                join_path(vec![import_directory, specifier])
            };

            let mut map = require_in_progress.lock().unwrap();
            if let Some(obj) = map.get(&import_name) {
                return Ok(obj.clone().into_value());
            }

            let obj = Object::new(ctx.clone())?;
            map.insert(import_name.clone(), obj.clone());
            drop(map);

            // trace!("Require: {}", import_name);

            let imported_object: Promise = Module::import(&ctx, import_name.clone()).unwrap();
            require_in_progress.lock().unwrap().remove(&import_name);

            if let Some(exports) = require_exports_ref_2.lock().unwrap().take() {
                if let Some(exports) = exports.as_object() {
                    for prop in exports.props::<Value, Value>() {
                        let (key, value) = prop?;
                        obj.set(key, value)?;
                    }
                } else {
                    return Ok(exports);
                }
            }

            for prop in imported_object.props::<String, Value>() {
                let (key, value) = prop?;
                obj.set(key, value)?;
            }

            Ok(obj.into_value())
        }),
    )?;

    Module::import(ctx, "@llrt/std")?;

    Ok(())
}

fn load<'js>(ctx: Ctx<'js>, filename: String, options: Opt<Object<'js>>) -> Result<Value<'js>> {
    let mut eval_options = EvalOptions::default();
    eval_options.global = true;
    eval_options.strict = false;
    eval_options.backtrace_barrier = false;
    eval_options.promise = true;

    // let mut eval_options = EvalOptions {
    //     global: true,
    //     strict: false,
    //     backtrace_barrier: false,
    //     promise: false,
    // };

    if let Some(options) = options.0 {
        if let Some(global) = options.get_optional("global")? {
            eval_options.global = global;
        }

        if let Some(strict) = options.get_optional("strict")? {
            eval_options.strict = strict;
        }
    }

    ctx.eval_file_with_options(
        std::path::PathBuf::from_str(&filename).unwrap(),
        eval_options,
    )
}

fn get_script_or_module_name(ctx: Ctx<'_>) -> String {
    unsafe {
        let ctx_ptr = ctx.as_raw().as_ptr();
        let atom = qjs::JS_GetScriptOrModuleName(ctx_ptr, 0);
        let c_str = qjs::JS_AtomToCString(ctx_ptr, atom);
        if c_str.is_null() {
            qjs::JS_FreeCString(ctx_ptr, c_str);
            return String::from(".");
        }
        let bytes = CStr::from_ptr(c_str).to_bytes();
        let res = std::str::from_utf8_unchecked(bytes).to_string();
        qjs::JS_FreeCString(ctx_ptr, c_str);
        res
    }
}

fn set_import_meta(module: &Module<'_>, filepath: &str) -> Result<()> {
    let meta: Object = module.meta()?;
    meta.prop("url", format!("file://{}", filepath))?;
    Ok(())
}

pub trait ErrorExtensions<'js> {
    fn into_value(self, ctx: &Ctx<'js>) -> Result<Value<'js>>;
}

impl<'js> ErrorExtensions<'js> for Error {
    fn into_value(self, ctx: &Ctx<'js>) -> Result<Value<'js>> {
        Err::<(), _>(self).catch(ctx).unwrap_err().into_value(ctx)
    }
}

impl<'js> ErrorExtensions<'js> for CaughtError<'js> {
    fn into_value(self, ctx: &Ctx<'js>) -> Result<Value<'js>> {
        Ok(match self {
            CaughtError::Error(err) => {
                JsString::from_str(ctx.clone(), &err.to_string())?.into_value()
            }
            CaughtError::Exception(ex) => ex.into_value(),
            CaughtError::Value(val) => val,
        })
    }
}

pub trait CtxExtension<'js> {
    fn spawn_exit<F, R>(&self, future: F) -> Result<Receiver<R>>
    where
        F: Future<Output = Result<R>> + 'js,
        R: 'js;
}

impl<'js> CtxExtension<'js> for Ctx<'js> {
    fn spawn_exit<F, R>(&self, future: F) -> Result<Receiver<R>>
    where
        F: Future<Output = Result<R>> + 'js,
        R: 'js,
    {
        todo!();
        // let ctx = self.clone();

        // let type_error_ctor: Constructor = ctx.globals().get(PredefinedAtom::TypeError)?;
        // let type_error: Object = type_error_ctor.construct(())?;
        // let stack: Option<String> = type_error.get(PredefinedAtom::Stack).ok();

        // let (join_channel_tx, join_channel_rx) = oneshot::channel();

        // self.spawn(async move {
        //     match future.await.catch(&ctx) {
        //         Ok(res) => {
        //             //result here dosn't matter if receiver has dropped
        //             let _ = join_channel_tx.send(res);
        //         }
        //         Err(err) => {
        //             // if let CaughtError::Exception(err) = err {
        //             //     if err.stack().is_none() {
        //             //         if let Some(stack) = stack {
        //             //             err.set(PredefinedAtom::Stack, stack).unwrap();
        //             //         }
        //             //     }
        //             //     Vm::print_error_and_exit(&ctx, CaughtError::Exception(err));
        //             // } else {
        //             //     Vm::print_error_and_exit(&ctx, err);
        //             // }
        //         }
        //     }
        // });
        // Ok(join_channel_rx)
    }
}