Update rbx-dom dependencies (#304)

.github/workflows/ci.yaml

@@ -23,11 +23,8 @@ jobs:
         with:
           components: rustfmt
 
-      - name: Install Just
-        uses: extractions/setup-just@v2
-
       - name: Install Tooling
-        uses: ok-nick/setup-aftman@v0.4.2
+        uses: CompeyDev/setup-rokit@v0.1.2
 
       - name: Check Formatting
         run: just fmt-check
@@ -40,11 +37,8 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Install Just
-        uses: extractions/setup-just@v2
-
       - name: Install Tooling
-        uses: ok-nick/setup-aftman@v0.4.2
+        uses: CompeyDev/setup-rokit@v0.1.2
 
       - name: Analyze
         run: just analyze

.lune/hello_lune.luau

@@ -129,7 +129,7 @@ end
 ]]
 
 print("Sending 4 pings to google 🌏")
-local result = process.spawn("ping", {
+local result = process.exec("ping", {
 	"google.com",
 	"-c 4",
 })

.lune/websocket_client.luau

@@ -28,8 +28,8 @@ end)
 
 for _ = 1, 5 do
 	local start = os.clock()
-	socket.send(tostring(1))
-	local response = socket.next()
+	socket:send(tostring(1))
+	local response = socket:next()
 	local elapsed = os.clock() - start
 	print(`Got response '{response}' in {elapsed * 1_000} milliseconds`)
 	task.wait(1 - elapsed)
@@ -38,7 +38,7 @@ end
 -- Everything went well, and we are done with the socket, so we can close it
 
 print("Closing web socket...")
-socket.close()
+socket:close()
 
 task.cancel(forceExit)
 print("Done! 🌙")

.lune/websocket_server.luau

@@ -15,9 +15,9 @@ local handle = net.serve(PORT, {
 	handleWebSocket = function(socket)
 		print("Got new web socket connection!")
 		repeat
-			local message = socket.next()
+			local message = socket:next()
 			if message ~= nil then
-				socket.send("Echo - " .. message)
+				socket:send("Echo - " .. message)
 			end
 		until message == nil
 		print("Web socket disconnected.")

CHANGELOG.md

@@ -8,6 +8,60 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## `0.9.0`
+
+### Breaking changes
+
+- Added two new process spawning functions - `process.create` and `process.exec`, removing the previous `process.spawn` API completely. ([#211])
+
+  To migrate from `process.spawn`, use the new `process.exec` API which retains the same behavior as the old function.
+
+  The new `process.create` function is a non-blocking process creation API and can be used to interactively
+  read and write stdio of the process.
+
+  ```lua
+  local child = process.create("program", {
+    "cli-argument",
+    "other-cli-argument"
+  })
+
+  -- Writing to stdin
+  child.stdin:write("Hello from Lune!")
+
+  -- Reading from stdout
+  local data = child.stdout:read()
+  print(buffer.tostring(data))
+  ```
+
+- WebSocket methods in `net.socket` and `net.serve` now use standard Lua method calling convention and colon syntax.
+  This means `socket.send(...)` is now `socket:send(...)`, `socket.close(...)` is now `socket:close(...)`, and so on.
+
+- `Runtime::run` now returns a more useful value instead of an `ExitCode` ([#178])
+
+### Changed
+
+- Documentation comments for several standard library properties have been improved ([#248], [#250])
+- Error messages no longer contain redundant or duplicate stack trace information
+
+[#178]: https://github.com/lune-org/lune/pull/178
+[#211]: https://github.com/lune-org/lune/pull/211
+[#248]: https://github.com/lune-org/lune/pull/248
+[#250]: https://github.com/lune-org/lune/pull/250
+
+## `0.8.9` - October 7th, 2024
+
+### Changed
+
+- Updated to Luau version `0.640`
+
+## `0.8.8` - August 22nd, 2024
+
+### Fixed
+
+- Fixed errors when deserializing `Lighting.AttributesSerialize` by updating `rbx-dom` dependencies ([#245])
+
+[#245]: https://github.com/lune-org/lune/pull/245
+
 ## `0.8.7` - August 10th, 2024
 
 ### Added

aftman.toml

@@ -1,3 +0,0 @@
-[tools]
-luau-lsp = "JohnnyMorganz/luau-lsp@1.32.1"
-stylua = "JohnnyMorganz/StyLua@0.20.0"

crates/lune-roblox/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "lune-roblox"
-version = "0.1.3"
+version = "0.1.4"
 edition = "2021"
 license = "MPL-2.0"
 repository = "https://github.com/lune-org/lune"
@@ -20,10 +20,10 @@ rand = "0.8"
 thiserror = "1.0"
 once_cell = "1.17"
 
-rbx_binary = "0.7.3"
-rbx_dom_weak = "2.6.0"
-rbx_reflection = "4.4.0"
-rbx_reflection_database = "0.2.9"
-rbx_xml = "0.13.2"
+rbx_binary = "1.0.0"
+rbx_dom_weak = "3.0.0"
+rbx_reflection = "5.0.0"
+rbx_reflection_database = "1.0.0"
+rbx_xml = "1.0.0"
 
 lune-utils = { version = "0.1.3", path = "../lune-utils" }

crates/lune-roblox/src/datatypes/conversion.rs

@@ -51,7 +51,7 @@ impl<'lua> DomValueToLua<'lua> for LuaValue<'lua> {
                 DomValue::Float32(n) => Ok(LuaValue::Number(*n as f64)),
                 DomValue::String(s) => Ok(LuaValue::String(lua.create_string(s)?)),
                 DomValue::BinaryString(s) => Ok(LuaValue::String(lua.create_string(s)?)),
-                DomValue::Content(s) => Ok(LuaValue::String(
+                DomValue::ContentId(s) => Ok(LuaValue::String(
                     lua.create_string(AsRef::<str>::as_ref(s))?,
                 )),
 

crates/lune-roblox/src/document/kind.rs

@@ -65,7 +65,7 @@ impl DocumentKind {
         for child_ref in dom.root().children() {
             if let Some(child_inst) = dom.get_by_ref(*child_ref) {
                 has_top_level_child = true;
-                if class_is_a_service(&child_inst.class).unwrap_or(false) {
+                if class_is_a_service(child_inst.class).unwrap_or(false) {
                     has_top_level_service = true;
                     break;
                 }

crates/lune-roblox/src/document/postprocessing.rs

@@ -1,6 +1,6 @@
 use rbx_dom_weak::{
     types::{Ref as DomRef, VariantType as DomType},
-    Instance as DomInstance, WeakDom,
+    ustr, Instance as DomInstance, WeakDom,
 };
 
 use crate::shared::instance::class_is_a;
@@ -18,8 +18,8 @@ pub fn postprocess_dom_for_model(dom: &mut WeakDom) {
         remove_matching_prop(inst, DomType::UniqueId, "HistoryId");
         // Similar story with ScriptGuid - this is used
         // in the studio-only cloud script drafts feature
-        if class_is_a(&inst.class, "LuaSourceContainer").unwrap_or(false) {
-            inst.properties.remove("ScriptGuid");
+        if class_is_a(inst.class, "LuaSourceContainer").unwrap_or(false) {
+            inst.properties.remove(&ustr("ScriptGuid"));
         }
     });
 }
@@ -41,7 +41,8 @@ where
 }
 
 fn remove_matching_prop(inst: &mut DomInstance, ty: DomType, name: &'static str) {
-    if inst.properties.get(name).map_or(false, |u| u.ty() == ty) {
+    let name = &ustr(name);
+    if inst.properties.get(name).is_some_and(|u| u.ty() == ty) {
         inst.properties.remove(name);
     }
 }

crates/lune-roblox/src/instance/base.rs

@@ -71,7 +71,7 @@ pub fn add_methods<'lua, M: LuaUserDataMethods<'lua, Instance>>(m: &mut M) {
         "FindFirstAncestorWhichIsA",
         |lua, this, class_name: String| {
             ensure_not_destroyed(this)?;
-            this.find_ancestor(|child| class_is_a(&child.class, &class_name).unwrap_or(false))
+            this.find_ancestor(|child| class_is_a(child.class, &class_name).unwrap_or(false))
                 .into_lua(lua)
         },
     );
@@ -104,7 +104,7 @@ pub fn add_methods<'lua, M: LuaUserDataMethods<'lua, Instance>>(m: &mut M) {
         |lua, this, (class_name, recursive): (String, Option<bool>)| {
             ensure_not_destroyed(this)?;
             let predicate =
-                |child: &DomInstance| class_is_a(&child.class, &class_name).unwrap_or(false);
+                |child: &DomInstance| class_is_a(child.class, &class_name).unwrap_or(false);
             if matches!(recursive, Some(true)) {
                 this.find_descendant(predicate).into_lua(lua)
             } else {
@@ -113,8 +113,7 @@ pub fn add_methods<'lua, M: LuaUserDataMethods<'lua, Instance>>(m: &mut M) {
         },
     );
     m.add_method("IsA", |_, this, class_name: String| {
-        ensure_not_destroyed(this)?;
-        Ok(class_is_a(&this.class_name, class_name).unwrap_or(false))
+        Ok(class_is_a(this.class_name, class_name).unwrap_or(false))
     });
     m.add_method(
         "IsAncestorOf",
@@ -217,20 +216,21 @@ fn instance_property_get<'lua>(
     this: &Instance,
     prop_name: String,
 ) -> LuaResult<LuaValue<'lua>> {
-    ensure_not_destroyed(this)?;
-
     match prop_name.as_str() {
         "ClassName" => return this.get_class_name().into_lua(lua),
-        "Name" => {
-            return this.get_name().into_lua(lua);
-        }
         "Parent" => {
             return this.get_parent().into_lua(lua);
         }
         _ => {}
     }
 
-    if let Some(info) = find_property_info(&this.class_name, &prop_name) {
+    ensure_not_destroyed(this)?;
+
+    if prop_name.as_str() == "Name" {
+        return this.get_name().into_lua(lua);
+    }
+
+    if let Some(info) = find_property_info(this.class_name, &prop_name) {
         if let Some(prop) = this.get_property(&prop_name) {
             if let DomValue::Enum(enum_value) = prop {
                 let enum_name = info.enum_name.ok_or_else(|| {
@@ -275,7 +275,7 @@ fn instance_property_get<'lua>(
     } else if let Some(inst) = this.find_child(|inst| inst.name == prop_name) {
         Ok(LuaValue::UserData(lua.create_userdata(inst)?))
     } else if let Some(getter) = InstanceRegistry::find_property_getter(lua, this, &prop_name) {
-        getter.call(this.clone())
+        getter.call(*this)
     } else if let Some(method) = InstanceRegistry::find_method(lua, this, &prop_name) {
         Ok(LuaValue::Function(method))
     } else {
@@ -321,13 +321,13 @@ fn instance_property_set<'lua>(
             }
             type Parent<'lua> = Option<LuaUserDataRef<'lua, Instance>>;
             let parent = Parent::from_lua(prop_value, lua)?;
-            this.set_parent(parent.map(|p| p.clone()));
+            this.set_parent(parent.map(|p| *p));
             return Ok(());
         }
         _ => {}
     }
 
-    if let Some(info) = find_property_info(&this.class_name, &prop_name) {
+    if let Some(info) = find_property_info(this.class_name, &prop_name) {
         if let Some(enum_name) = info.enum_name {
             match LuaUserDataRef::<EnumItem>::from_lua(prop_value, lua) {
                 Ok(given_enum) if given_enum.parent.desc.name == enum_name => {
@@ -354,7 +354,7 @@ fn instance_property_set<'lua>(
             )))
         }
     } else if let Some(setter) = InstanceRegistry::find_property_setter(lua, this, &prop_name) {
-        setter.call((this.clone(), prop_value))
+        setter.call((*this, prop_value))
     } else {
         Err(LuaError::RuntimeError(format!(
             "{prop_name} is not a valid member of {this}",

crates/lune-roblox/src/instance/data_model.rs

@@ -48,7 +48,7 @@ fn data_model_get_service(_: &Lua, this: &Instance, service_name: String) -> Lua
         Ok(service)
     } else {
         let service = Instance::new_orphaned(service_name);
-        service.set_parent(Some(this.clone()));
+        service.set_parent(Some(*this));
         Ok(service)
     }
 }

crates/lune-roblox/src/instance/mod.rs

@@ -11,7 +11,7 @@ use mlua::prelude::*;
 use once_cell::sync::Lazy;
 use rbx_dom_weak::{
     types::{Attributes as DomAttributes, Ref as DomRef, Variant as DomValue},
-    Instance as DomInstance, InstanceBuilder as DomInstanceBuilder, WeakDom,
+    ustr, Instance as DomInstance, InstanceBuilder as DomInstanceBuilder, Ustr, WeakDom,
 };
 
 use lune_utils::TableBuilder;
@@ -34,10 +34,10 @@ const PROPERTY_NAME_TAGS: &str = "Tags";
 static INTERNAL_DOM: Lazy<Mutex<WeakDom>> =
     Lazy::new(|| Mutex::new(WeakDom::new(DomInstanceBuilder::new("ROOT"))));
 
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, Copy)]
 pub struct Instance {
     pub(crate) dom_ref: DomRef,
-    pub(crate) class_name: String,
+    pub(crate) class_name: Ustr,
 }
 
 impl Instance {
@@ -75,7 +75,7 @@ impl Instance {
 
             Some(Self {
                 dom_ref,
-                class_name: instance.class.clone(),
+                class_name: instance.class,
             })
         } else {
             None
@@ -96,14 +96,14 @@ impl Instance {
 
         let class_name = class_name.as_ref();
 
-        let instance = DomInstanceBuilder::new(class_name.to_string());
+        let instance = DomInstanceBuilder::new(class_name);
 
         let dom_root = dom.root_ref();
         let dom_ref = dom.insert(dom_root, instance);
 
         Self {
             dom_ref,
-            class_name: class_name.to_string(),
+            class_name: ustr(class_name),
         }
     }
 
@@ -244,7 +244,7 @@ impl Instance {
           on the Roblox Developer Hub
     */
     pub fn is_a(&self, class_name: impl AsRef<str>) -> bool {
-        class_is_a(&self.class_name, class_name).unwrap_or(false)
+        class_is_a(self.class_name, class_name).unwrap_or(false)
     }
 
     /**
@@ -302,10 +302,7 @@ impl Instance {
     pub fn get_parent(&self) -> Option<Instance> {
         let dom = INTERNAL_DOM.lock().expect("Failed to lock document");
 
-        let parent_ref = dom
-            .get_by_ref(self.dom_ref)
-            .expect("Failed to find instance in document")
-            .parent();
+        let parent_ref = dom.get_by_ref(self.dom_ref)?.parent();
 
         if parent_ref == dom.root_ref() {
             None
@@ -344,7 +341,7 @@ impl Instance {
             .get_by_ref(self.dom_ref)
             .expect("Failed to find instance in document")
             .properties
-            .get(name.as_ref())
+            .get(&ustr(name.as_ref()))
             .cloned()
     }
 
@@ -361,7 +358,7 @@ impl Instance {
             .get_by_ref_mut(self.dom_ref)
             .expect("Failed to find instance in document")
             .properties
-            .insert(name.as_ref().to_string(), value);
+            .insert(ustr(name.as_ref()), value);
     }
 
     /**
@@ -377,7 +374,7 @@ impl Instance {
             .get_by_ref(self.dom_ref)
             .expect("Failed to find instance in document");
         if let Some(DomValue::Attributes(attributes)) =
-            inst.properties.get(PROPERTY_NAME_ATTRIBUTES)
+            inst.properties.get(&ustr(PROPERTY_NAME_ATTRIBUTES))
         {
             attributes.get(name.as_ref()).cloned()
         } else {
@@ -398,7 +395,7 @@ impl Instance {
             .get_by_ref(self.dom_ref)
             .expect("Failed to find instance in document");
         if let Some(DomValue::Attributes(attributes)) =
-            inst.properties.get(PROPERTY_NAME_ATTRIBUTES)
+            inst.properties.get(&ustr(PROPERTY_NAME_ATTRIBUTES))
         {
             attributes.clone().into_iter().collect()
         } else {
@@ -425,14 +422,14 @@ impl Instance {
             value => value,
         };
         if let Some(DomValue::Attributes(attributes)) =
-            inst.properties.get_mut(PROPERTY_NAME_ATTRIBUTES)
+            inst.properties.get_mut(&ustr(PROPERTY_NAME_ATTRIBUTES))
         {
             attributes.insert(name.as_ref().to_string(), value);
         } else {
             let mut attributes = DomAttributes::new();
             attributes.insert(name.as_ref().to_string(), value);
             inst.properties.insert(
-                PROPERTY_NAME_ATTRIBUTES.to_string(),
+                ustr(PROPERTY_NAME_ATTRIBUTES),
                 DomValue::Attributes(attributes),
             );
         }
@@ -452,11 +449,11 @@ impl Instance {
             .get_by_ref_mut(self.dom_ref)
             .expect("Failed to find instance in document");
         if let Some(DomValue::Attributes(attributes)) =
-            inst.properties.get_mut(PROPERTY_NAME_ATTRIBUTES)
+            inst.properties.get_mut(&ustr(PROPERTY_NAME_ATTRIBUTES))
         {
             attributes.remove(name.as_ref());
             if attributes.is_empty() {
-                inst.properties.remove(PROPERTY_NAME_ATTRIBUTES);
+                inst.properties.remove(&ustr(PROPERTY_NAME_ATTRIBUTES));
             }
         }
     }
@@ -473,11 +470,11 @@ impl Instance {
         let inst = dom
             .get_by_ref_mut(self.dom_ref)
             .expect("Failed to find instance in document");
-        if let Some(DomValue::Tags(tags)) = inst.properties.get_mut(PROPERTY_NAME_TAGS) {
+        if let Some(DomValue::Tags(tags)) = inst.properties.get_mut(&ustr(PROPERTY_NAME_TAGS)) {
             tags.push(name.as_ref());
         } else {
             inst.properties.insert(
-                PROPERTY_NAME_TAGS.to_string(),
+                ustr(PROPERTY_NAME_TAGS),
                 DomValue::Tags(vec![name.as_ref().to_string()].into()),
             );
         }
@@ -495,7 +492,7 @@ impl Instance {
         let inst = dom
             .get_by_ref(self.dom_ref)
             .expect("Failed to find instance in document");
-        if let Some(DomValue::Tags(tags)) = inst.properties.get(PROPERTY_NAME_TAGS) {
+        if let Some(DomValue::Tags(tags)) = inst.properties.get(&ustr(PROPERTY_NAME_TAGS)) {
             tags.iter().map(ToString::to_string).collect()
         } else {
             Vec::new()
@@ -514,7 +511,7 @@ impl Instance {
         let inst = dom
             .get_by_ref(self.dom_ref)
             .expect("Failed to find instance in document");
-        if let Some(DomValue::Tags(tags)) = inst.properties.get(PROPERTY_NAME_TAGS) {
+        if let Some(DomValue::Tags(tags)) = inst.properties.get(&ustr(PROPERTY_NAME_TAGS)) {
             let name = name.as_ref();
             tags.iter().any(|tag| tag == name)
         } else {
@@ -534,14 +531,12 @@ impl Instance {
         let inst = dom
             .get_by_ref_mut(self.dom_ref)
             .expect("Failed to find instance in document");
-        if let Some(DomValue::Tags(tags)) = inst.properties.get_mut(PROPERTY_NAME_TAGS) {
+        if let Some(DomValue::Tags(tags)) = inst.properties.get_mut(&ustr(PROPERTY_NAME_TAGS)) {
             let name = name.as_ref();
             let mut new_tags = tags.iter().map(ToString::to_string).collect::<Vec<_>>();
             new_tags.retain(|tag| tag != name);
-            inst.properties.insert(
-                PROPERTY_NAME_TAGS.to_string(),
-                DomValue::Tags(new_tags.into()),
-            );
+            inst.properties
+                .insert(ustr(PROPERTY_NAME_TAGS), DomValue::Tags(new_tags.into()));
         }
     }
 

crates/lune-roblox/src/instance/terrain.rs

@@ -27,9 +27,8 @@ pub fn add_methods<'lua, M: LuaUserDataMethods<'lua, Instance>>(methods: &mut M)
 }
 
 fn get_or_create_material_colors(instance: &Instance) -> MaterialColors {
-    if let Some(Variant::MaterialColors(material_colors)) = instance.get_property("MaterialColors")
-    {
-        material_colors
+    if let Some(Variant::MaterialColors(inner)) = instance.get_property("MaterialColors") {
+        inner
     } else {
         MaterialColors::default()
     }

crates/lune-roblox/src/shared/classes.rs

@@ -122,7 +122,7 @@ pub(crate) fn get_or_create_property_ref_instance(
         Ok(inst)
     } else {
         let inst = Instance::new_orphaned(class_name);
-        inst.set_parent(Some(this.clone()));
+        inst.set_parent(Some(*this));
         this.set_property(prop_name, DomValue::Ref(inst.dom_ref));
         Ok(inst)
     }

crates/lune-roblox/src/shared/userdata.rs

@@ -23,7 +23,7 @@ pub fn make_list_writer() -> Box<ListWriter> {
     })
 }
 
-/**
+/*
     Userdata metamethod implementations
 
     Note that many of these return [`LuaResult`] even though they don't

crates/lune-std-datetime/src/values.rs

@@ -60,7 +60,7 @@ where
     }
 }
 
-/**
+/*
     Conversion methods between `DateTimeValues` and plain lua tables
 
     Note that the `IntoLua` implementation here uses a read-only table,
@@ -117,7 +117,7 @@ impl IntoLua<'_> for DateTimeValues {
     }
 }
 
-/**
+/*
     Conversion methods between chrono's timezone-aware `DateTime` to
     and from our non-timezone-aware `DateTimeValues` values struct
 */

crates/lune-std-luau/src/lib.rs

@@ -2,7 +2,7 @@
 
 use mlua::prelude::*;
 
-use lune_utils::TableBuilder;
+use lune_utils::{jit::JitStatus, TableBuilder};
 
 mod options;
 
@@ -78,7 +78,13 @@ fn load_source<'lua>(
     // changed, otherwise disable JIT since it'll fall back anyways
     lua.enable_jit(options.codegen_enabled && !env_changed);
     let function = chunk.into_function()?;
-    lua.enable_jit(true);
+    lua.enable_jit(
+        lua.app_data_ref::<JitStatus>()
+            .ok_or(LuaError::runtime(
+                "Failed to get current JitStatus ref from AppData",
+            ))?
+            .enabled(),
+    );
 
     Ok(function)
 }

crates/lune-std-net/src/lib.rs

@@ -65,9 +65,9 @@ async fn net_request(lua: &Lua, config: RequestConfig) -> LuaResult<LuaTable> {
     res.await?.into_lua_table(lua)
 }
 
-async fn net_socket(lua: &Lua, url: String) -> LuaResult<LuaTable> {
+async fn net_socket(lua: &Lua, url: String) -> LuaResult<LuaValue> {
     let (ws, _) = tokio_tungstenite::connect_async(url).await.into_lua_err()?;
-    NetWebSocket::new(ws).into_lua_table(lua)
+    NetWebSocket::new(ws).into_lua(lua)
 }
 
 async fn net_serve<'lua>(

crates/lune-std-net/src/server/service.rs

@@ -40,13 +40,13 @@ impl Service<Request<Incoming>> for Svc {
                 lua.spawn_local(async move {
                     let sock = sock.await.unwrap();
                     let lua_sock = NetWebSocket::new(sock);
-                    let lua_tab = lua_sock.into_lua_table(&lua_inner).unwrap();
+                    let lua_val = lua_sock.into_lua(&lua_inner).unwrap();
 
                     let handler_websocket: LuaFunction =
                         keys.websocket_handler(&lua_inner).unwrap().unwrap();
 
                     lua_inner
-                        .push_thread_back(handler_websocket, lua_tab)
+                        .push_thread_back(handler_websocket, lua_val)
                         .unwrap();
                 });
 

crates/lune-std-net/src/websocket.rs

@@ -23,29 +23,6 @@ use hyper_tungstenite::{
     WebSocketStream,
 };
 
-use lune_utils::TableBuilder;
-
-// Wrapper implementation for compatibility and changing colon syntax to dot syntax
-const WEB_SOCKET_IMPL_LUA: &str = r#"
-return freeze(setmetatable({
-	close = function(...)
-		return websocket:close(...)
-	end,
-	send = function(...)
-		return websocket:send(...)
-	end,
-	next = function(...)
-		return websocket:next(...)
-	end,
-}, {
-	__index = function(self, key)
-		if key == "closeCode" then
-			return websocket.closeCode
-		end
-	end,
-}))
-"#;
-
 #[derive(Debug)]
 pub struct NetWebSocket<T> {
     close_code_exists: Arc<AtomicBool>,
@@ -125,25 +102,6 @@ where
         let mut ws = self.write_stream.lock().await;
         ws.close().await.into_lua_err()
     }
-
-    pub fn into_lua_table(self, lua: &Lua) -> LuaResult<LuaTable> {
-        let setmetatable = lua.globals().get::<_, LuaFunction>("setmetatable")?;
-        let table_freeze = lua
-            .globals()
-            .get::<_, LuaTable>("table")?
-            .get::<_, LuaFunction>("freeze")?;
-
-        let env = TableBuilder::new(lua)?
-            .with_value("websocket", self.clone())?
-            .with_value("setmetatable", setmetatable)?
-            .with_value("freeze", table_freeze)?
-            .build_readonly()?;
-
-        lua.load(WEB_SOCKET_IMPL_LUA)
-            .set_name("websocket")
-            .set_environment(env)
-            .eval()
-    }
 }
 
 impl<T> LuaUserData for NetWebSocket<T>

crates/lune-std-process/Cargo.toml

@@ -20,6 +20,9 @@ directories = "5.0"
 pin-project = "1.0"
 os_str_bytes = { version = "7.0", features = ["conversions"] }
 
+bstr = "1.9"
+bytes = "1.6.0"
+
 tokio = { version = "1", default-features = false, features = [
     "io-std",
     "io-util",

crates/lune-std-process/src/lib.rs

@@ -1,27 +1,33 @@
 #![allow(clippy::cargo_common_metadata)]
 
 use std::{
+    cell::RefCell,
     env::{
         self,
         consts::{ARCH, OS},
     },
     path::MAIN_SEPARATOR,
     process::Stdio,
+    rc::Rc,
+    sync::Arc,
 };
 
 use mlua::prelude::*;
 
 use lune_utils::TableBuilder;
 use mlua_luau_scheduler::{Functions, LuaSpawnExt};
+use options::ProcessSpawnOptionsStdio;
 use os_str_bytes::RawOsString;
-use tokio::io::AsyncWriteExt;
+use stream::{ChildProcessReader, ChildProcessWriter};
+use tokio::{io::AsyncWriteExt, process::Child, sync::RwLock};
 
 mod options;
+mod stream;
 mod tee_writer;
 mod wait_for_child;
 
 use self::options::ProcessSpawnOptions;
-use self::wait_for_child::{wait_for_child, WaitForChildResult};
+use self::wait_for_child::wait_for_child;
 
 use lune_utils::path::get_current_dir;
 
@@ -44,6 +50,11 @@ pub fn module(lua: &Lua) -> LuaResult<LuaTable> {
     // Create constants for OS & processor architecture
     let os = lua.create_string(OS.to_lowercase())?;
     let arch = lua.create_string(ARCH.to_lowercase())?;
+    let endianness = lua.create_string(if cfg!(target_endian = "big") {
+        "big"
+    } else {
+        "little"
+    })?;
     // Create readonly args array
     let args_vec = lua
         .app_data_ref::<Vec<String>>()
@@ -69,11 +80,13 @@ pub fn module(lua: &Lua) -> LuaResult<LuaTable> {
     TableBuilder::new(lua)?
         .with_value("os", os)?
         .with_value("arch", arch)?
+        .with_value("endianness", endianness)?
         .with_value("args", args_tab)?
         .with_value("cwd", cwd_str)?
         .with_value("env", env_tab)?
         .with_value("exit", process_exit)?
-        .with_async_function("spawn", process_spawn)?
+        .with_async_function("exec", process_exec)?
+        .with_function("create", process_create)?
         .build_readonly()
 }
 
@@ -141,11 +154,16 @@ fn process_env_iter<'lua>(
     })
 }
 
-async fn process_spawn(
+async fn process_exec(
     lua: &Lua,
     (program, args, options): (String, Option<Vec<String>>, ProcessSpawnOptions),
 ) -> LuaResult<LuaTable> {
-    let res = lua.spawn(spawn_command(program, args, options)).await?;
+    let res = lua
+        .spawn(async move {
+            let cmd = spawn_command_with_stdin(program, args, options.clone()).await?;
+            wait_for_child(cmd, options.stdio.stdout, options.stdio.stderr).await
+        })
+        .await?;
 
     /*
         NOTE: If an exit code was not given by the child process,
@@ -168,30 +186,104 @@ async fn process_spawn(
         .build_readonly()
 }
 
-async fn spawn_command(
+#[allow(clippy::await_holding_refcell_ref)]
+fn process_create(
+    lua: &Lua,
+    (program, args, options): (String, Option<Vec<String>>, ProcessSpawnOptions),
+) -> LuaResult<LuaTable> {
+    // We do not want the user to provide stdio options for process.create,
+    // so we reset the options, regardless of what the user provides us
+    let mut spawn_options = options.clone();
+    spawn_options.stdio = ProcessSpawnOptionsStdio::default();
+
+    let (code_tx, code_rx) = tokio::sync::broadcast::channel(4);
+    let code_rx_rc = Rc::new(RefCell::new(code_rx));
+
+    let child = spawn_command(program, args, spawn_options)?;
+
+    let child_arc = Arc::new(RwLock::new(child));
+
+    let child_arc_clone = Arc::clone(&child_arc);
+    let mut child_lock = tokio::task::block_in_place(|| child_arc_clone.blocking_write());
+
+    let stdin = child_lock.stdin.take().unwrap();
+    let stdout = child_lock.stdout.take().unwrap();
+    let stderr = child_lock.stderr.take().unwrap();
+
+    let child_arc_inner = Arc::clone(&child_arc);
+
+    // Spawn a background task to wait for the child to exit and send the exit code
+    let status_handle = tokio::spawn(async move {
+        let res = child_arc_inner.write().await.wait().await;
+
+        if let Ok(output) = res {
+            let code = output.code().unwrap_or_default();
+
+            code_tx
+                .send(code)
+                .expect("ExitCode receiver was unexpectedly dropped");
+        }
+    });
+
+    TableBuilder::new(lua)?
+        .with_value("stdout", ChildProcessReader(stdout))?
+        .with_value("stderr", ChildProcessReader(stderr))?
+        .with_value("stdin", ChildProcessWriter(stdin))?
+        .with_async_function("kill", move |_, ()| {
+            // First, stop the status task so the RwLock is dropped
+            status_handle.abort();
+            let child_arc_clone = Arc::clone(&child_arc);
+
+            // Then get another RwLock to write to the child process and kill it
+            async move { Ok(child_arc_clone.write().await.kill().await?) }
+        })?
+        .with_async_function("status", move |lua, ()| {
+            let code_rx_rc_clone = Rc::clone(&code_rx_rc);
+            async move {
+                // Exit code of 9 corresponds to SIGKILL, which should be the only case where
+                // the receiver gets suddenly dropped
+                let code = code_rx_rc_clone.borrow_mut().recv().await.unwrap_or(9);
+
+                TableBuilder::new(lua)?
+                    .with_value("code", code)?
+                    .with_value("ok", code == 0)?
+                    .build_readonly()
+            }
+        })?
+        .build_readonly()
+}
+
+async fn spawn_command_with_stdin(
     program: String,
     args: Option<Vec<String>>,
     mut options: ProcessSpawnOptions,
-) -> LuaResult<WaitForChildResult> {
-    let stdout = options.stdio.stdout;
-    let stderr = options.stdio.stderr;
+) -> LuaResult<Child> {
     let stdin = options.stdio.stdin.take();
 
-    let mut child = options
-        .into_command(program, args)
-        .stdin(if stdin.is_some() {
-            Stdio::piped()
-        } else {
-            Stdio::null()
-        })
-        .stdout(stdout.as_stdio())
-        .stderr(stderr.as_stdio())
-        .spawn()?;
+    let mut child = spawn_command(program, args, options)?;
 
     if let Some(stdin) = stdin {
         let mut child_stdin = child.stdin.take().unwrap();
         child_stdin.write_all(&stdin).await.into_lua_err()?;
     }
 
-    wait_for_child(child, stdout, stderr).await
+    Ok(child)
+}
+
+fn spawn_command(
+    program: String,
+    args: Option<Vec<String>>,
+    options: ProcessSpawnOptions,
+) -> LuaResult<Child> {
+    let stdout = options.stdio.stdout;
+    let stderr = options.stdio.stderr;
+
+    let child = options
+        .into_command(program, args)
+        .stdin(Stdio::piped())
+        .stdout(stdout.as_stdio())
+        .stderr(stderr.as_stdio())
+        .spawn()?;
+
+    Ok(child)
 }

crates/lune-std-process/src/stream.rs

@@ -0,0 +1,58 @@
+use bstr::BString;
+use bytes::BytesMut;
+use mlua::prelude::*;
+use tokio::io::{AsyncRead, AsyncReadExt, AsyncWrite, AsyncWriteExt};
+
+const CHUNK_SIZE: usize = 8;
+
+#[derive(Debug, Clone)]
+pub struct ChildProcessReader<R: AsyncRead>(pub R);
+#[derive(Debug, Clone)]
+pub struct ChildProcessWriter<W: AsyncWrite>(pub W);
+
+impl<R: AsyncRead + Unpin> ChildProcessReader<R> {
+    pub async fn read(&mut self, chunk_size: Option<usize>) -> LuaResult<Vec<u8>> {
+        let mut buf = BytesMut::with_capacity(chunk_size.unwrap_or(CHUNK_SIZE));
+        self.0.read_buf(&mut buf).await?;
+
+        Ok(buf.to_vec())
+    }
+
+    pub async fn read_to_end(&mut self) -> LuaResult<Vec<u8>> {
+        let mut buf = vec![];
+        self.0.read_to_end(&mut buf).await?;
+
+        Ok(buf)
+    }
+}
+
+impl<R: AsyncRead + Unpin + 'static> LuaUserData for ChildProcessReader<R> {
+    fn add_methods<'lua, M: LuaUserDataMethods<'lua, Self>>(methods: &mut M) {
+        methods.add_async_method_mut("read", |lua, this, chunk_size: Option<usize>| async move {
+            let buf = this.read(chunk_size).await?;
+
+            if buf.is_empty() {
+                return Ok(LuaValue::Nil);
+            }
+
+            Ok(LuaValue::String(lua.create_string(buf)?))
+        });
+
+        methods.add_async_method_mut("readToEnd", |lua, this, ()| async {
+            Ok(lua.create_string(this.read_to_end().await?))
+        });
+    }
+}
+
+impl<W: AsyncWrite + Unpin> ChildProcessWriter<W> {
+    pub async fn write(&mut self, data: BString) -> LuaResult<()> {
+        self.0.write_all(data.as_ref()).await?;
+        Ok(())
+    }
+}
+
+impl<W: AsyncWrite + Unpin + 'static> LuaUserData for ChildProcessWriter<W> {
+    fn add_methods<'lua, M: LuaUserDataMethods<'lua, Self>>(methods: &mut M) {
+        methods.add_async_method_mut("write", |_, this, data| async { this.write(data).await });
+    }
+}

crates/lune-std-process/src/tee_writer.rs

@@ -33,7 +33,7 @@ where
     }
 }
 
-impl<'a, W> AsyncWrite for AsyncTeeWriter<'a, W>
+impl<W> AsyncWrite for AsyncTeeWriter<'_, W>
 where
     W: AsyncWrite + Unpin,
 {

crates/lune-std-roblox/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "lune-std-roblox"
-version = "0.1.3"
+version = "0.1.4"
 edition = "2021"
 license = "MPL-2.0"
 repository = "https://github.com/lune-org/lune"
@@ -18,6 +18,7 @@ mlua-luau-scheduler = { version = "0.0.2", path = "../mlua-luau-scheduler" }
 
 once_cell = "1.17"
 rbx_cookie = { version = "0.1.4", default-features = false }
+roblox_install = "1.0.0"
 
 lune-utils = { version = "0.1.3", path = "../lune-utils" }
-lune-roblox = { version = "0.1.3", path = "../lune-roblox" }
+lune-roblox = { version = "0.1.4", path = "../lune-roblox" }

crates/lune-std-roblox/src/lib.rs

@@ -13,6 +13,7 @@ use lune_roblox::{
 static REFLECTION_DATABASE: OnceCell<ReflectionDatabase> = OnceCell::new();
 
 use lune_utils::TableBuilder;
+use roblox_install::RobloxStudio;
 
 /**
     Creates the `roblox` standard library module.
@@ -39,6 +40,10 @@ pub fn module(lua: &Lua) -> LuaResult<LuaTable> {
         .with_function("getReflectionDatabase", get_reflection_database)?
         .with_function("implementProperty", implement_property)?
         .with_function("implementMethod", implement_method)?
+        .with_function("studioApplicationPath", studio_application_path)?
+        .with_function("studioContentPath", studio_content_path)?
+        .with_function("studioPluginPath", studio_plugin_path)?
+        .with_function("studioBuiltinPluginPath", studio_builtin_plugin_path)?
         .build_readonly()
 }
 
@@ -72,7 +77,7 @@ async fn serialize_place<'lua>(
     lua: &'lua Lua,
     (data_model, as_xml): (LuaUserDataRef<'lua, Instance>, Option<bool>),
 ) -> LuaResult<LuaString<'lua>> {
-    let data_model = (*data_model).clone();
+    let data_model = *data_model;
     let fut = lua.spawn_blocking(move || {
         let doc = Document::from_data_model_instance(data_model)?;
         let bytes = doc.to_bytes_with_format(match as_xml {
@@ -89,7 +94,7 @@ async fn serialize_model<'lua>(
     lua: &'lua Lua,
     (instances, as_xml): (Vec<LuaUserDataRef<'lua, Instance>>, Option<bool>),
 ) -> LuaResult<LuaString<'lua>> {
-    let instances = instances.iter().map(|i| (*i).clone()).collect();
+    let instances = instances.iter().map(|i| **i).collect();
     let fut = lua.spawn_blocking(move || {
         let doc = Document::from_instance_array(instances)?;
         let bytes = doc.to_bytes_with_format(match as_xml {
@@ -147,3 +152,27 @@ fn implement_method(
     InstanceRegistry::insert_method(lua, &class_name, &method_name, method).into_lua_err()?;
     Ok(())
 }
+
+fn studio_application_path(_: &Lua, _: ()) -> LuaResult<String> {
+    RobloxStudio::locate()
+        .map(|rs| rs.application_path().display().to_string())
+        .map_err(LuaError::external)
+}
+
+fn studio_content_path(_: &Lua, _: ()) -> LuaResult<String> {
+    RobloxStudio::locate()
+        .map(|rs| rs.content_path().display().to_string())
+        .map_err(LuaError::external)
+}
+
+fn studio_plugin_path(_: &Lua, _: ()) -> LuaResult<String> {
+    RobloxStudio::locate()
+        .map(|rs| rs.plugins_path().display().to_string())
+        .map_err(LuaError::external)
+}
+
+fn studio_builtin_plugin_path(_: &Lua, _: ()) -> LuaResult<String> {
+    RobloxStudio::locate()
+        .map(|rs| rs.built_in_plugins_path().display().to_string())
+        .map_err(LuaError::external)
+}

crates/lune-std-serde/src/compress_decompress.rs

@@ -117,7 +117,7 @@ impl<'lua> FromLua<'lua> for CompressDecompressFormat {
 
     Errors when the compression fails.
 */
-pub async fn compress<'lua>(
+pub async fn compress(
     source: impl AsRef<[u8]>,
     format: CompressDecompressFormat,
     level: Option<i32>,
@@ -163,7 +163,7 @@ pub async fn compress<'lua>(
 
     Errors when the decompression fails.
 */
-pub async fn decompress<'lua>(
+pub async fn decompress(
     source: impl AsRef<[u8]>,
     format: CompressDecompressFormat,
 ) -> LuaResult<Vec<u8>> {

crates/lune-std/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "lune-std"
-version = "0.1.4"
+version = "0.1.5"
 edition = "2021"
 license = "MPL-2.0"
 repository = "https://github.com/lune-org/lune"
@@ -53,7 +53,7 @@ lune-std-luau = { optional = true, version = "0.1.2", path = "../lune-std-luau"
 lune-std-net = { optional = true, version = "0.1.2", path = "../lune-std-net" }
 lune-std-process = { optional = true, version = "0.1.3", path = "../lune-std-process" }
 lune-std-regex = { optional = true, version = "0.1.2", path = "../lune-std-regex" }
-lune-std-roblox = { optional = true, version = "0.1.3", path = "../lune-std-roblox" }
+lune-std-roblox = { optional = true, version = "0.1.4", path = "../lune-std-roblox" }
 lune-std-serde = { optional = true, version = "0.1.2", path = "../lune-std-serde" }
 lune-std-stdio = { optional = true, version = "0.1.2", path = "../lune-std-stdio" }
 lune-std-task = { optional = true, version = "0.1.2", path = "../lune-std-task" }

crates/lune-std/src/globals/require/context.rs

@@ -150,9 +150,9 @@ impl RequireContext {
         self.get_from_cache(lua, abs_path.as_ref())
     }
 
-    async fn load<'lua>(
+    async fn load(
         &self,
-        lua: &'lua Lua,
+        lua: &Lua,
         abs_path: impl AsRef<Path>,
         rel_path: impl AsRef<Path>,
     ) -> LuaResult<LuaRegistryKey> {

crates/lune-utils/Cargo.toml

@@ -22,3 +22,5 @@ dunce = "1.0"
 once_cell = "1.17"
 path-clean = "1.0"
 pathdiff = "0.2"
+parking_lot = "0.12.3"
+semver = "1.0"

crates/lune-utils/src/fmt/error/components.rs

@@ -26,6 +26,11 @@ static STYLED_STACK_END: Lazy<String> = Lazy::new(|| {
     )
 });
 
+// NOTE: We indent using 4 spaces instead of tabs since
+// these errors are most likely to be displayed in a terminal
+// or some kind of live output - and tabs don't work well there
+const STACK_TRACE_INDENT: &str = "    ";
+
 /**
     Error components parsed from a [`LuaError`].
 
@@ -86,7 +91,7 @@ impl fmt::Display for ErrorComponents {
             let trace = self.trace.as_ref().unwrap();
             writeln!(f, "{}", *STYLED_STACK_BEGIN)?;
             for line in trace.lines() {
-                writeln!(f, "\t{line}")?;
+                writeln!(f, "{STACK_TRACE_INDENT}{line}")?;
             }
             writeln!(f, "{}", *STYLED_STACK_END)?;
         }
@@ -124,7 +129,7 @@ impl From<LuaError> for ErrorComponents {
         }
 
         // We will then try to extract any stack trace
-        let trace = if let LuaError::CallbackError {
+        let mut trace = if let LuaError::CallbackError {
             ref traceback,
             ref cause,
         } = *error
@@ -147,6 +152,45 @@ impl From<LuaError> for ErrorComponents {
             None
         };
 
+        // Sometimes, we can get duplicate stack trace lines that only
+        // mention "[C]", without a function name or path, and these can
+        // be safely ignored / removed if the following line has more info
+        if let Some(trace) = &mut trace {
+            let lines = trace.lines_mut();
+            loop {
+                let first_is_c_and_empty = lines
+                    .first()
+                    .is_some_and(|line| line.source().is_c() && line.is_empty());
+                let second_is_c_and_nonempty = lines
+                    .get(1)
+                    .is_some_and(|line| line.source().is_c() && !line.is_empty());
+                if first_is_c_and_empty && second_is_c_and_nonempty {
+                    lines.remove(0);
+                } else {
+                    break;
+                }
+            }
+        }
+
+        // Finally, we do some light postprocessing to remove duplicate
+        // information, such as the location prefix in the error message
+        if let Some(message) = messages.last_mut() {
+            if let Some(line) = trace
+                .iter()
+                .flat_map(StackTrace::lines)
+                .find(|line| line.source().is_lua())
+            {
+                let location_prefix = format!(
+                    "[string \"{}\"]:{}:",
+                    line.path().unwrap(),
+                    line.line_number().unwrap()
+                );
+                if message.starts_with(&location_prefix) {
+                    *message = message[location_prefix.len()..].trim().to_string();
+                }
+            }
+        }
+
         ErrorComponents { messages, trace }
     }
 }

crates/lune-utils/src/fmt/error/stack_trace.rs

@@ -39,6 +39,24 @@ pub enum StackTraceSource {
     Lua,
 }
 
+impl StackTraceSource {
+    /**
+        Returns `true` if the error originated from a C / Rust function, `false` otherwise.
+    */
+    #[must_use]
+    pub const fn is_c(self) -> bool {
+        matches!(self, Self::C)
+    }
+
+    /**
+        Returns `true` if the error originated from a Lua (user) function, `false` otherwise.
+    */
+    #[must_use]
+    pub const fn is_lua(self) -> bool {
+        matches!(self, Self::Lua)
+    }
+}
+
 /**
     Stack trace line parsed from a [`LuaError`].
 */
@@ -82,6 +100,20 @@ impl StackTraceLine {
     pub fn function_name(&self) -> Option<&str> {
         self.function_name.as_deref()
     }
+
+    /**
+        Returns `true` if the stack trace line contains no "useful" information, `false` otherwise.
+
+        Useful information is determined as one of:
+
+        - A path
+        - A line number
+        - A function name
+    */
+    #[must_use]
+    pub const fn is_empty(&self) -> bool {
+        self.path.is_none() && self.line_number.is_none() && self.function_name.is_none()
+    }
 }
 
 impl FromStr for StackTraceLine {
@@ -145,6 +177,14 @@ impl StackTrace {
     pub fn lines(&self) -> &[StackTraceLine] {
         &self.lines
     }
+
+    /**
+        Returns the individual stack trace lines, mutably.
+    */
+    #[must_use]
+    pub fn lines_mut(&mut self) -> &mut Vec<StackTraceLine> {
+        &mut self.lines
+    }
 }
 
 impl FromStr for StackTrace {

crates/lune-utils/src/fmt/error/tests.rs

@@ -2,7 +2,7 @@ use mlua::prelude::*;
 
 use crate::fmt::ErrorComponents;
 
-fn new_lua_result() -> LuaResult<()> {
+fn new_lua_runtime_error() -> LuaResult<()> {
     let lua = Lua::new();
 
     lua.globals()
@@ -17,13 +17,34 @@ fn new_lua_result() -> LuaResult<()> {
     lua.load("f()").set_name("chunk_name").eval()
 }
 
+fn new_lua_script_error() -> LuaResult<()> {
+    let lua = Lua::new();
+
+    lua.load(
+        "local function inner()\
+        \n    error(\"oh no, a script error\")\
+        \nend\
+        \n\
+        \nlocal function outer()\
+        \n    inner()\
+        \nend\
+        \n\
+        \nouter()\
+        ",
+    )
+    .set_name("chunk_name")
+    .eval()
+}
+
 // Tests for error context stack
 mod context {
     use super::*;
 
     #[test]
     fn preserves_original() {
-        let lua_error = new_lua_result().context("additional context").unwrap_err();
+        let lua_error = new_lua_runtime_error()
+            .context("additional context")
+            .unwrap_err();
         let components = ErrorComponents::from(lua_error);
 
         assert_eq!(components.messages()[0], "additional context");
@@ -34,7 +55,7 @@ mod context {
     fn preserves_levels() {
         // NOTE: The behavior in mlua is to preserve a single level of context
         // and not all levels (context gets replaced on each call to `context`)
-        let lua_error = new_lua_result()
+        let lua_error = new_lua_runtime_error()
             .context("level 1")
             .context("level 2")
             .context("level 3")
@@ -54,7 +75,7 @@ mod error_components {
 
     #[test]
     fn message() {
-        let lua_error = new_lua_result().unwrap_err();
+        let lua_error = new_lua_runtime_error().unwrap_err();
         let components = ErrorComponents::from(lua_error);
 
         assert_eq!(components.messages()[0], "oh no, a runtime error");
@@ -62,7 +83,7 @@ mod error_components {
 
     #[test]
     fn stack_begin_end() {
-        let lua_error = new_lua_result().unwrap_err();
+        let lua_error = new_lua_runtime_error().unwrap_err();
         let formatted = format!("{}", ErrorComponents::from(lua_error));
 
         assert!(formatted.contains("Stack Begin"));
@@ -71,7 +92,7 @@ mod error_components {
 
     #[test]
     fn stack_lines() {
-        let lua_error = new_lua_result().unwrap_err();
+        let lua_error = new_lua_runtime_error().unwrap_err();
         let components = ErrorComponents::from(lua_error);
 
         let mut lines = components.trace().unwrap().lines().iter();
@@ -83,3 +104,47 @@ mod error_components {
         assert_eq!(line_2, "Script 'chunk_name', Line 1");
     }
 }
+
+// Tests for general formatting
+mod general {
+    use super::*;
+
+    #[test]
+    fn message_does_not_contain_location() {
+        let lua_error = new_lua_script_error().unwrap_err();
+
+        let components = ErrorComponents::from(lua_error);
+        let trace = components.trace().unwrap();
+
+        let first_message = components.messages().first().unwrap();
+        let first_lua_stack_line = trace
+            .lines()
+            .iter()
+            .find(|line| line.source().is_lua())
+            .unwrap();
+
+        let location_prefix = format!(
+            "[string \"{}\"]:{}:",
+            first_lua_stack_line.path().unwrap(),
+            first_lua_stack_line.line_number().unwrap()
+        );
+
+        assert!(!first_message.starts_with(&location_prefix));
+    }
+
+    #[test]
+    fn no_redundant_c_mentions() {
+        let lua_error = new_lua_script_error().unwrap_err();
+
+        let components = ErrorComponents::from(lua_error);
+        let trace = components.trace().unwrap();
+
+        let c_stack_lines = trace
+            .lines()
+            .iter()
+            .filter(|line| line.source().is_c())
+            .collect::<Vec<_>>();
+
+        assert_eq!(c_stack_lines.len(), 1); // Just the "error" call
+    }
+}

crates/lune-utils/src/fmt/value/mod.rs

@@ -1,11 +1,9 @@
-use std::{
-    collections::HashSet,
-    sync::{Arc, Mutex},
-};
+use std::{collections::HashSet, sync::Arc};
 
 use console::{colors_enabled as get_colors_enabled, set_colors_enabled};
 use mlua::prelude::*;
 use once_cell::sync::Lazy;
+use parking_lot::ReentrantMutex;
 
 mod basic;
 mod config;
@@ -20,7 +18,7 @@ pub use self::config::ValueFormatConfig;
 // NOTE: Since the setting for colors being enabled is global,
 // and these functions may be called in parallel, we use this global
 // lock to make sure that we don't mess up the colors for other threads.
-static COLORS_LOCK: Lazy<Arc<Mutex<()>>> = Lazy::new(|| Arc::new(Mutex::new(())));
+static COLORS_LOCK: Lazy<Arc<ReentrantMutex<()>>> = Lazy::new(|| Arc::new(ReentrantMutex::new(())));
 
 /**
     Formats a Lua value into a pretty string using the given config.
@@ -28,7 +26,7 @@ static COLORS_LOCK: Lazy<Arc<Mutex<()>>> = Lazy::new(|| Arc::new(Mutex::new(()))
 #[must_use]
 #[allow(clippy::missing_panics_doc)]
 pub fn pretty_format_value(value: &LuaValue, config: &ValueFormatConfig) -> String {
-    let _guard = COLORS_LOCK.lock().unwrap();
+    let _guard = COLORS_LOCK.lock();
 
     let were_colors_enabled = get_colors_enabled();
     set_colors_enabled(were_colors_enabled && config.colors_enabled);
@@ -48,7 +46,7 @@ pub fn pretty_format_value(value: &LuaValue, config: &ValueFormatConfig) -> Stri
 #[must_use]
 #[allow(clippy::missing_panics_doc)]
 pub fn pretty_format_multi_value(values: &LuaMultiValue, config: &ValueFormatConfig) -> String {
-    let _guard = COLORS_LOCK.lock().unwrap();
+    let _guard = COLORS_LOCK.lock();
 
     let were_colors_enabled = get_colors_enabled();
     set_colors_enabled(were_colors_enabled && config.colors_enabled);

crates/lune-utils/src/jit.rs

@@ -0,0 +1,30 @@
+#[derive(Debug, Clone, Copy, Default)]
+pub struct JitStatus(bool);
+
+impl JitStatus {
+    #[must_use]
+    pub fn new(enabled: bool) -> Self {
+        Self(enabled)
+    }
+
+    pub fn set_status(&mut self, enabled: bool) {
+        self.0 = enabled;
+    }
+
+    #[must_use]
+    pub fn enabled(self) -> bool {
+        self.0
+    }
+}
+
+impl From<JitStatus> for bool {
+    fn from(val: JitStatus) -> Self {
+        val.enabled()
+    }
+}
+
+impl From<bool> for JitStatus {
+    fn from(val: bool) -> Self {
+        Self::new(val)
+    }
+}

crates/lune-utils/src/lib.rs

@@ -4,6 +4,7 @@ mod table_builder;
 mod version_string;
 
 pub mod fmt;
+pub mod jit;
 pub mod path;
 
 pub use self::table_builder::TableBuilder;

crates/lune-utils/src/version_string.rs

@@ -2,6 +2,7 @@ use std::sync::Arc;
 
 use mlua::prelude::*;
 use once_cell::sync::Lazy;
+use semver::Version;
 
 static LUAU_VERSION: Lazy<Arc<String>> = Lazy::new(create_luau_version_string);
 
@@ -20,12 +21,10 @@ pub fn get_version_string(lune_version: impl AsRef<str>) -> String {
     let lune_version = lune_version.as_ref();
 
     assert!(!lune_version.is_empty(), "Lune version string is empty");
-    assert!(
-        lune_version.chars().all(is_valid_version_char),
-        "Lune version string contains invalid characters"
-    );
-
-    format!("Lune {lune_version}+{}", *LUAU_VERSION)
+    match Version::parse(lune_version) {
+        Ok(semver) => format!("Lune {semver}+{}", *LUAU_VERSION),
+        Err(e) => panic!("Lune version string is not valid semver: {e}"),
+    }
 }
 
 fn create_luau_version_string() -> Arc<String> {

crates/lune/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "lune"
-version = "0.8.7"
+version = "0.8.9"
 edition = "2021"
 license = "MPL-2.0"
 repository = "https://github.com/lune-org/lune"
@@ -71,8 +71,8 @@ reqwest = { version = "0.11", default-features = false, features = [
     "rustls-tls",
 ] }
 
-lune-std = { optional = true, version = "0.1.4", path = "../lune-std" }
-lune-roblox = { optional = true, version = "0.1.3", path = "../lune-roblox" }
+lune-std = { optional = true, version = "0.1.5", path = "../lune-std" }
+lune-roblox = { optional = true, version = "0.1.4", path = "../lune-roblox" }
 lune-utils = { version = "0.1.3", path = "../lune-utils" }
 
 ### CLI

crates/lune/src/cli/run.rs

@@ -1,4 +1,4 @@
-use std::process::ExitCode;
+use std::{env, process::ExitCode};
 
 use anyhow::{Context, Result};
 use clap::Parser;
@@ -40,17 +40,27 @@ impl RunCommand {
             (file_display_name, file_contents)
         };
 
-        // Create a new lune object with all globals & run the script
-        let result = Runtime::new()
+        // Create a new lune runtime with all globals & run the script
+        let mut rt = Runtime::new()
             .with_args(self.script_args)
+            // Enable JIT compilation unless it was requested to be disabled
+            .with_jit(
+                !matches!(
+                    env::var("LUNE_LUAU_JIT").ok(), 
+                    Some(jit_enabled) if jit_enabled == "0" || jit_enabled == "false" || jit_enabled == "off"
+                )
+             );
+
+        let result = rt
             .run(&script_display_name, strip_shebang(script_contents))
             .await;
+
         Ok(match result {
             Err(err) => {
                 eprintln!("{err}");
                 ExitCode::FAILURE
             }
-            Ok(code) => code,
+            Ok((code, _)) => ExitCode::from(code),
         })
     }
 }

crates/lune/src/cli/utils/files.rs

@@ -64,8 +64,8 @@ pub fn discover_script_path(path: impl AsRef<str>, in_home_dir: bool) -> Result<
     // NOTE: We use metadata directly here to try to
     // avoid accessing the file path more than once
     let file_meta = file_path.metadata();
-    let is_file = file_meta.as_ref().map_or(false, Metadata::is_file);
-    let is_dir = file_meta.as_ref().map_or(false, Metadata::is_dir);
+    let is_file = file_meta.as_ref().is_ok_and(Metadata::is_file);
+    let is_dir = file_meta.as_ref().is_ok_and(Metadata::is_dir);
     let is_abs = file_path.is_absolute();
     let ext = file_path.extension();
     if is_file {

crates/lune/src/rt/runtime.rs

@@ -1,7 +1,6 @@
 #![allow(clippy::missing_panics_doc)]
 
 use std::{
-    process::ExitCode,
     rc::Rc,
     sync::{
         atomic::{AtomicBool, Ordering},
@@ -9,6 +8,7 @@ use std::{
     },
 };
 
+use lune_utils::jit::JitStatus;
 use mlua::prelude::*;
 use mlua_luau_scheduler::{Functions, Scheduler};
 use self_cell::self_cell;
@@ -101,6 +101,7 @@ impl RuntimeInner {
 */
 pub struct Runtime {
     inner: RuntimeInner,
+    jit_status: JitStatus,
 }
 
 impl Runtime {
@@ -114,6 +115,7 @@ impl Runtime {
     pub fn new() -> Self {
         Self {
             inner: RuntimeInner::create().expect("Failed to create runtime"),
+            jit_status: JitStatus::default(),
         }
     }
 
@@ -131,6 +133,15 @@ impl Runtime {
         self
     }
 
+    /**
+        Enables or disables JIT compilation.
+    */
+    #[must_use]
+    pub fn with_jit(mut self, jit_status: impl Into<JitStatus>) -> Self {
+        self.jit_status = jit_status.into();
+        self
+    }
+
     /**
         Runs a Lune script inside of the current runtime.
 
@@ -144,7 +155,7 @@ impl Runtime {
         &mut self,
         script_name: impl AsRef<str>,
         script_contents: impl AsRef<[u8]>,
-    ) -> RuntimeResult<ExitCode> {
+    ) -> RuntimeResult<(u8, Vec<LuaValue>)> {
         let lua = self.inner.lua();
         let sched = self.inner.scheduler();
 
@@ -156,24 +167,29 @@ impl Runtime {
             eprintln!("{}", RuntimeError::from(e));
         });
 
+        // Enable / disable the JIT as requested and store the current status as AppData
+        lua.set_app_data(self.jit_status);
+        lua.enable_jit(self.jit_status.enabled());
+
         // Load our "main" thread
         let main = lua
             .load(script_contents.as_ref())
             .set_name(script_name.as_ref());
 
         // Run it on our scheduler until it and any other spawned threads complete
-        sched.push_thread_back(main, ())?;
+        let main_thread_id = sched.push_thread_back(main, ())?;
         sched.run().await;
 
-        // Return the exit code - default to FAILURE if we got any errors
-        let exit_code = sched.get_exit_code().unwrap_or({
-            if got_any_error.load(Ordering::SeqCst) {
-                ExitCode::FAILURE
-            } else {
-                ExitCode::SUCCESS
-            }
-        });
+        let main_thread_res = match sched.get_thread_result(main_thread_id) {
+            Some(res) => res,
+            None => LuaValue::Nil.into_lua_multi(lua),
+        }?;
 
-        Ok(exit_code)
+        Ok((
+            sched
+                .get_exit_code()
+                .unwrap_or(u8::from(got_any_error.load(Ordering::SeqCst))),
+            main_thread_res.into_vec(),
+        ))
     }
 }

crates/lune/src/standalone/mod.rs

@@ -29,16 +29,15 @@ pub async fn run(patched_bin: impl AsRef<[u8]>) -> Result<ExitCode> {
     let args = env::args().skip(1).collect::<Vec<_>>();
     let meta = Metadata::from_bytes(patched_bin).expect("must be a standalone binary");
 
-    let result = Runtime::new()
-        .with_args(args)
-        .run("STANDALONE", meta.bytecode)
-        .await;
+    let mut rt = Runtime::new().with_args(args);
+
+    let result = rt.run("STANDALONE", meta.bytecode).await;
 
     Ok(match result {
         Err(err) => {
             eprintln!("{err}");
             ExitCode::FAILURE
         }
-        Ok(code) => code,
+        Ok((code, _)) => ExitCode::from(code),
     })
 }

crates/lune/src/tests.rs

@@ -31,19 +31,21 @@ macro_rules! create_tests {
             // The rest of the test logic can continue as normal
             let full_name = format!("{}/tests/{}.luau", workspace_dir.display(), $value);
             let script = read_to_string(&full_name).await?;
-            let mut lune = Runtime::new().with_args(
-                ARGS
-                    .clone()
-                    .iter()
-                    .map(ToString::to_string)
-                    .collect::<Vec<_>>()
-            );
+            let mut lune = Runtime::new()
+                .with_jit(true)
+                .with_args(
+                    ARGS
+                        .clone()
+                        .iter()
+                        .map(ToString::to_string)
+                        .collect::<Vec<_>>()
+                );
             let script_name = full_name
 				.trim_end_matches(".luau")
 				.trim_end_matches(".lua")
 				.to_string();
-            let exit_code = lune.run(&script_name, &script).await?;
-            Ok(exit_code)
+            let (exit_code, _) = lune.run(&script_name, &script).await?;
+            Ok(ExitCode::from(exit_code))
         }
     )* }
 }
@@ -138,13 +140,16 @@ create_tests! {
     process_cwd: "process/cwd",
     process_env: "process/env",
     process_exit: "process/exit",
-    process_spawn_async: "process/spawn/async",
-    process_spawn_basic: "process/spawn/basic",
-    process_spawn_cwd: "process/spawn/cwd",
-    process_spawn_no_panic: "process/spawn/no_panic",
-    process_spawn_shell: "process/spawn/shell",
-    process_spawn_stdin: "process/spawn/stdin",
-    process_spawn_stdio: "process/spawn/stdio",
+    process_exec_async: "process/exec/async",
+    process_exec_basic: "process/exec/basic",
+    process_exec_cwd: "process/exec/cwd",
+    process_exec_no_panic: "process/exec/no_panic",
+    process_exec_shell: "process/exec/shell",
+    process_exec_stdin: "process/exec/stdin",
+    process_exec_stdio: "process/exec/stdio",
+    process_spawn_non_blocking: "process/create/non_blocking",
+    process_spawn_status: "process/create/status",
+    process_spawn_stream: "process/create/stream",
 }
 
 #[cfg(feature = "std-regex")]

crates/mlua-luau-scheduler/examples/exit_code.rs

@@ -32,7 +32,7 @@ pub fn main() -> LuaResult<()> {
 
     // Verify that we got a correct exit code
     let code = sched.get_exit_code().unwrap_or_default();
-    assert!(format!("{code:?}").contains("(1)"));
+    assert_eq!(code, 1);
 
     Ok(())
 }

crates/mlua-luau-scheduler/src/exit.rs

@@ -1,10 +1,10 @@
-use std::{cell::Cell, process::ExitCode, rc::Rc};
+use std::{cell::Cell, rc::Rc};
 
 use event_listener::Event;
 
 #[derive(Debug, Clone)]
 pub(crate) struct Exit {
-    code: Rc<Cell<Option<ExitCode>>>,
+    code: Rc<Cell<Option<u8>>>,
     event: Rc<Event>,
 }
 
@@ -16,12 +16,12 @@ impl Exit {
         }
     }
 
-    pub fn set(&self, code: ExitCode) {
+    pub fn set(&self, code: u8) {
         self.code.set(Some(code));
         self.event.notify(usize::MAX);
     }
 
-    pub fn get(&self) -> Option<ExitCode> {
+    pub fn get(&self) -> Option<u8> {
         self.code.get()
     }
 

crates/mlua-luau-scheduler/src/functions.rs

@@ -1,15 +1,11 @@
-#![allow(unused_imports)]
 #![allow(clippy::too_many_lines)]
 
-use std::process::ExitCode;
-
 use mlua::prelude::*;
 
 use crate::{
     error_callback::ThreadErrorCallback,
     queue::{DeferredThreadQueue, SpawnedThreadQueue},
     result_map::ThreadResultMap,
-    scheduler::Scheduler,
     thread_id::ThreadId,
     traits::LuaSchedulerExt,
     util::{is_poll_pending, LuaThreadOrFunction, ThreadResult},
@@ -232,7 +228,7 @@ impl<'lua> Functions<'lua> {
                 "exit",
                 lua.create_function(|lua, code: Option<u8>| {
                     let _span = tracing::trace_span!("Scheduler::fn_exit").entered();
-                    let code = code.map(ExitCode::from).unwrap_or_default();
+                    let code = code.unwrap_or_default();
                     lua.set_exit_code(code);
                     Ok(())
                 })?,

crates/mlua-luau-scheduler/src/scheduler.rs

@@ -2,7 +2,6 @@
 
 use std::{
     cell::Cell,
-    process::ExitCode,
     rc::{Rc, Weak as WeakRc},
     sync::{Arc, Weak as WeakArc},
     thread::panicking,
@@ -168,7 +167,7 @@ impl<'lua> Scheduler<'lua> {
         Gets the exit code for this scheduler, if one has been set.
     */
     #[must_use]
-    pub fn get_exit_code(&self) -> Option<ExitCode> {
+    pub fn get_exit_code(&self) -> Option<u8> {
         self.exit.get()
     }
 
@@ -177,7 +176,7 @@ impl<'lua> Scheduler<'lua> {
 
         This will cause [`Scheduler::run`] to exit immediately.
     */
-    pub fn set_exit_code(&self, code: ExitCode) {
+    pub fn set_exit_code(&self, code: u8) {
         self.exit.set(code);
     }
 

crates/mlua-luau-scheduler/src/traits.rs

@@ -82,7 +82,7 @@ pub trait LuaSchedulerExt<'lua> {
 
         Panics if called outside of a running [`Scheduler`].
     */
-    fn set_exit_code(&self, code: ExitCode);
+    fn set_exit_code(&self, code: u8);
 
     /**
         Pushes (spawns) a lua thread to the **front** of the current scheduler.
@@ -283,7 +283,7 @@ pub trait LuaSpawnExt<'lua> {
 }
 
 impl<'lua> LuaSchedulerExt<'lua> for Lua {
-    fn set_exit_code(&self, code: ExitCode) {
+    fn set_exit_code(&self, code: u8) {
         let exit = self
             .app_data_ref::<Exit>()
             .expect("exit code can only be set from within an active scheduler");
@@ -334,7 +334,7 @@ impl<'lua> LuaSchedulerExt<'lua> for Lua {
     }
 }
 
-impl<'lua> LuaSpawnExt<'lua> for Lua {
+impl LuaSpawnExt<'_> for Lua {
     fn spawn<F, T>(&self, fut: F) -> Task<T>
     where
         F: Future<Output = T> + Send + 'static,

rokit.toml

@@ -0,0 +1,4 @@
+[tools]
+luau-lsp = "JohnnyMorganz/luau-lsp@1.33.1"
+stylua = "JohnnyMorganz/StyLua@0.20.0"
+just = "casey/just@1.36.0"

scripts/generate_compression_test_files.luau

@@ -108,7 +108,7 @@ local BIN_ZLIB = if process.os == "macos" then "/opt/homebrew/bin/pigz" else "pi
 
 local function checkInstalled(program: string, args: { string }?)
 	print("Checking if", program, "is installed")
-	local result = process.spawn(program, args)
+	local result = process.exec(program, args)
 	if not result.ok then
 		stdio.ewrite(string.format("Program '%s' is not installed\n", program))
 		process.exit(1)
@@ -123,7 +123,7 @@ checkInstalled(BIN_ZLIB, { "--version" })
 -- Run them to generate files
 
 local function run(program: string, args: { string }): string
-	local result = process.spawn(program, args)
+	local result = process.exec(program, args)
 	if not result.ok then
 		stdio.ewrite(string.format("Command '%s' failed\n", program))
 		if #result.stdout > 0 then

tests/datetime/formatLocalTime.luau

@@ -31,7 +31,7 @@ if not runLocaleTests then
 	return
 end
 
-local dateCmd = process.spawn("bash", { "-c", "date +\"%A, %d %B %Y\" --date='@1693068988'" }, {
+local dateCmd = process.exec("bash", { "-c", "date +\"%A, %d %B %Y\" --date='@1693068988'" }, {
 	env = {
 		LC_ALL = "fr_FR.UTF-8 ",
 	},

tests/net/serve/websockets.luau

@@ -24,10 +24,10 @@ local handle = net.serve(PORT, {
 		return "unreachable"
 	end,
 	handleWebSocket = function(socket)
-		local socketMessage = socket.next()
+		local socketMessage = socket:next()
 		assert(socketMessage == REQUEST, "Invalid web socket request from client")
-		socket.send(RESPONSE)
-		socket.close()
+		socket:send(RESPONSE)
+		socket:close()
 	end,
 })
 
@@ -43,19 +43,19 @@ end)
 
 local socket = net.socket(WS_URL)
 
-socket.send(REQUEST)
+socket:send(REQUEST)
 
-local socketMessage = socket.next()
+local socketMessage = socket:next()
 assert(socketMessage ~= nil, "Got no web socket response from server")
 assert(socketMessage == RESPONSE, "Invalid web socket response from server")
 
-socket.close()
+socket:close()
 
 task.cancel(thread2)
 
 -- Wait for the socket to close and make sure we can't send messages afterwards
 task.wait()
-local success3, err2 = (pcall :: any)(socket.send, "")
+local success3, err2 = (pcall :: any)(socket.send, socket, "")
 assert(not success3, "Sending messages after the socket has been closed should error")
 local message2 = tostring(err2)
 assert(

tests/net/socket/basic.luau

@@ -8,17 +8,17 @@ assert(type(socket.send) == "function", "send must be a function")
 assert(type(socket.close) == "function", "close must be a function")
 
 -- Request to close the socket
-socket.close()
+socket:close()
 
 -- Drain remaining messages, until we got our close message
-while socket.next() do
+while socket:next() do
 end
 
 assert(type(socket.closeCode) == "number", "closeCode should exist after closing")
 assert(socket.closeCode == 1000, "closeCode should be 1000 after closing")
 
 local success, message = pcall(function()
-	socket.send("Hello, world!")
+	socket:send("Hello, world!")
 end)
 
 assert(not success, "send should fail after closing")

tests/net/socket/wss.luau

@@ -8,7 +8,7 @@ local task = require("@lune/task")
 local socket = net.socket("wss://gateway.discord.gg/?v=10&encoding=json")
 
 while not socket.closeCode do
-	local response = socket.next()
+	local response = socket:next()
 
 	if response then
 		local decodeSuccess, decodeMessage = pcall(serde.decode, "json" :: "json", response)
@@ -23,6 +23,6 @@ while not socket.closeCode do
 
 		-- Close the connection after a second with the success close code
 		task.wait(1)
-		socket.close(1000)
+		socket:close(1000)
 	end
 end

tests/net/socket/wss_rw.luau

@@ -10,7 +10,7 @@ local socket = net.socket("wss://gateway.discord.gg/?v=10&encoding=json")
 
 local spawnedThread = task.spawn(function()
 	while not socket.closeCode do
-		socket.next()
+		socket:next()
 	end
 end)
 
@@ -23,9 +23,9 @@ end)
 task.wait(1)
 
 local payload = '{"op":1,"d":null}'
-socket.send(payload)
-socket.send(buffer.fromstring(payload))
-socket.close(1000)
+socket:send(payload)
+socket:send(buffer.fromstring(payload))
+socket:close(1000)
 
 task.cancel(delayedThread)
 task.cancel(spawnedThread)

tests/process/create/kill.luau

@@ -0,0 +1,21 @@
+local process = require("@lune/process")
+
+-- Killing a child process should work as expected
+
+local message = "Hello, world!"
+local child = process.create("cat")
+
+child.stdin:write(message)
+child.kill()
+
+assert(child.status().code == 9, "Child process should have an exit code of 9 (SIGKILL)")
+
+assert(
+	child.stdout:readToEnd() == message,
+	"Reading from stdout of child process should work even after kill"
+)
+
+local stdinWriteOk = pcall(function()
+	child.stdin:write(message)
+end)
+assert(not stdinWriteOk, "Writing to stdin of child process should not work after kill")

tests/process/create/non_blocking.luau

@@ -0,0 +1,13 @@
+local process = require("@lune/process")
+
+-- Spawning a child process should not block the thread
+
+local childThread = coroutine.create(process.create)
+
+local ok, err = coroutine.resume(childThread, "echo", { "hello, world" })
+assert(ok, err)
+
+assert(
+	coroutine.status(childThread) == "dead",
+	"Child process should not block the thread it is running on"
+)

tests/process/create/status.luau

@@ -0,0 +1,15 @@
+local process = require("@lune/process")
+
+-- The exit code of an child process should be correct
+
+local randomExitCode = math.random(0, 255)
+local isOk = randomExitCode == 0
+local child = process.create("exit", { tostring(randomExitCode) }, { shell = true })
+local status = child.status()
+
+assert(
+	status.code == randomExitCode,
+	`Child process exited with wrong exit code, expected {randomExitCode}`
+)
+
+assert(status.ok == isOk, `Child status should be {if status.ok then "ok" else "not ok"}`)

tests/process/create/stream.luau

@@ -0,0 +1,18 @@
+local process = require("@lune/process")
+
+-- Should be able to write and read from child process streams
+
+local msg = "hello, world"
+
+local catChild = process.create("cat")
+catChild.stdin:write(msg)
+assert(
+	msg == catChild.stdout:read(#msg),
+	"Failed to write to stdin or read from stdout of child process"
+)
+
+local echoChild = if process.os == "windows"
+	then process.create("/c", { "echo", msg, "1>&2" }, { shell = "cmd" })
+	else process.create("echo", { msg, ">>/dev/stderr" }, { shell = true })
+
+assert(msg == echoChild.stderr:read(#msg), "Failed to read from stderr of child process")

tests/process/exec/async.luau

@@ -4,7 +4,7 @@ local task = require("@lune/task")
 
 local IS_WINDOWS = process.os == "windows"
 
--- Spawning a process should not block any lua thread(s)
+-- Executing a command should not block any lua thread(s)
 
 local SLEEP_DURATION = 1 / 4
 local SLEEP_SAMPLES = 2
@@ -31,7 +31,7 @@ for i = 1, SLEEP_SAMPLES, 1 do
 			table.insert(args, 1, "-Milliseconds")
 		end
 		-- Windows does not have `sleep` as a process, so we use powershell instead.
-		process.spawn("sleep", args, if IS_WINDOWS then { shell = true } else nil)
+		process.exec("sleep", args, if IS_WINDOWS then { shell = true } else nil)
 		sleepCounter += 1
 	end)
 end

tests/process/exec/basic.luau

@@ -2,7 +2,7 @@ local process = require("@lune/process")
 local stdio = require("@lune/stdio")
 local task = require("@lune/task")
 
--- Spawning a child process should work, with options
+-- Executing a command should work, with options
 
 local thread = task.delay(1, function()
 	stdio.ewrite("Spawning a process should take a reasonable amount of time\n")
@@ -12,7 +12,7 @@ end)
 
 local IS_WINDOWS = process.os == "windows"
 
-local result = process.spawn(
+local result = process.exec(
 	if IS_WINDOWS then "cmd" else "ls",
 	if IS_WINDOWS then { "/c", "dir" } else { "-a" }
 )

tests/process/exec/cwd.luau

@@ -6,7 +6,7 @@ local pwdCommand = if IS_WINDOWS then "cmd" else "pwd"
 local pwdArgs = if IS_WINDOWS then { "/c", "cd" } else {}
 
 -- Make sure the cwd option actually uses the directory we want
-local rootPwd = process.spawn(pwdCommand, pwdArgs, {
+local rootPwd = process.exec(pwdCommand, pwdArgs, {
 	cwd = "/",
 }).stdout
 rootPwd = string.gsub(rootPwd, "^%s+", "")
@@ -27,24 +27,24 @@ end
 
 -- Setting cwd should not change the cwd of this process
 
-local pwdBefore = process.spawn(pwdCommand, pwdArgs).stdout
-process.spawn("ls", {}, {
+local pwdBefore = process.exec(pwdCommand, pwdArgs).stdout
+process.exec("ls", {}, {
 	cwd = "/",
 	shell = true,
 })
-local pwdAfter = process.spawn(pwdCommand, pwdArgs).stdout
+local pwdAfter = process.exec(pwdCommand, pwdArgs).stdout
 assert(pwdBefore == pwdAfter, "Current working directory changed after running child process")
 
 -- Setting the cwd on a child process should properly
 -- replace any leading ~ with the users real home dir
 
-local homeDir1 = process.spawn("echo $HOME", nil, {
+local homeDir1 = process.exec("echo $HOME", nil, {
 	shell = true,
 }).stdout
 
 -- NOTE: Powershell for windows uses `$pwd.Path` instead of `pwd` as pwd would return
 -- a PathInfo object, using $pwd.Path gets the Path property of the PathInfo object
-local homeDir2 = process.spawn(if IS_WINDOWS then "$pwd.Path" else "pwd", nil, {
+local homeDir2 = process.exec(if IS_WINDOWS then "$pwd.Path" else "pwd", nil, {
 	shell = true,
 	cwd = "~",
 }).stdout

tests/process/exec/no_panic.luau

@@ -0,0 +1,7 @@
+local process = require("@lune/process")
+
+-- Executing a non existent command as a child process
+-- should not panic, but should error
+
+local success = pcall(process.exec, "someProgramThatDoesNotExist")
+assert(not success, "Spawned a non-existent program")

tests/process/exec/shell.luau

@@ -5,7 +5,7 @@ local IS_WINDOWS = process.os == "windows"
 -- Default shell should be /bin/sh on unix and powershell on Windows,
 -- note that powershell needs slightly different command flags for ls
 
-local shellResult = process.spawn("ls", {
+local shellResult = process.exec("ls", {
 	if IS_WINDOWS then "-Force" else "-a",
 }, {
 	shell = true,

tests/process/exec/stdin.luau

@@ -10,8 +10,8 @@ local echoMessage = "Hello from child process!"
 -- When passing stdin to powershell on windows we must "accept" using the double newline
 
 local result = if IS_WINDOWS
-	then process.spawn("powershell", { "echo" }, { stdin = echoMessage .. "\n\n" })
-	else process.spawn("xargs", { "echo" }, { stdin = echoMessage })
+	then process.exec("powershell", { "echo" }, { stdin = echoMessage .. "\n\n" })
+	else process.exec("xargs", { "echo" }, { stdin = echoMessage })
 
 local resultStdout = if IS_WINDOWS
 	then string.sub(result.stdout, #result.stdout - #echoMessage - 1)

tests/process/exec/stdio.luau

@@ -5,12 +5,12 @@ local IS_WINDOWS = process.os == "windows"
 -- Inheriting stdio & environment variables should work
 
 local echoMessage = "Hello from child process!"
-local echoResult = process.spawn("echo", {
+local echoResult = process.exec("echo", {
 	if IS_WINDOWS then '"$Env:TEST_VAR"' else '"$TEST_VAR"',
 }, {
 	env = { TEST_VAR = echoMessage },
 	shell = if IS_WINDOWS then "powershell" else "bash",
-	stdio = "inherit",
+	stdio = "inherit" :: process.SpawnOptionsStdioKind, -- FIXME: This should just work without a cast?
 })
 
 -- Windows uses \r\n (CRLF) and unix uses \n (LF)

tests/process/spawn/no_panic.luau

@@ -1,7 +0,0 @@
-local process = require("@lune/process")
-
--- Spawning a child process for a non-existent
--- program should not panic, but should error
-
-local success = pcall(process.spawn, "someProgramThatDoesNotExist")
-assert(not success, "Spawned a non-existent program")

tests/roblox/instance/methods/ClearAllChildren.luau

@@ -20,14 +20,10 @@ assert(not pcall(function()
 	return child1.Name
 end))
 
-assert(not pcall(function()
-	return child1.Parent
-end))
+assert(not child1.Parent)
 
 assert(not pcall(function()
 	return child2.Name
 end))
 
-assert(not pcall(function()
-	return child2.Parent
-end))
+assert(not child2.Parent)

tests/roblox/instance/methods/Destroy.luau

@@ -14,22 +14,16 @@ assert(not pcall(function()
 	return root.Name
 end))
 
-assert(not pcall(function()
-	return root.Parent
-end))
+assert(not root.Parent)
 
 assert(not pcall(function()
 	return child.Name
 end))
 
-assert(not pcall(function()
-	return child.Parent
-end))
+assert(not child.Parent)
 
 assert(not pcall(function()
 	return descendant.Name
 end))
 
-assert(not pcall(function()
-	return descendant.Parent
-end))
+assert(not descendant.Parent)

tests/stdio/format.luau

@@ -109,7 +109,7 @@ assertContains(
 
 local _, errorMessage = pcall(function()
 	local function innerInnerFn()
-		process.spawn("PROGRAM_THAT_DOES_NOT_EXIST")
+		process.exec("PROGRAM_THAT_DOES_NOT_EXIST")
 	end
 	local function innerFn()
 		innerInnerFn()
@@ -122,3 +122,23 @@ stdio.ewrite(typeof(errorMessage))
 assertContains("Should format errors similarly to userdata", stdio.format(errorMessage), "<LuaErr")
 assertContains("Should format errors with stack begins", stdio.format(errorMessage), "Stack Begin")
 assertContains("Should format errors with stack ends", stdio.format(errorMessage), "Stack End")
+
+-- Check that calling stdio.format in a __tostring metamethod by print doesn't cause a deadlock
+
+local inner = {}
+setmetatable(inner, {
+	__tostring = function()
+		return stdio.format(5)
+	end,
+})
+
+print(inner)
+
+local outer = {}
+setmetatable(outer, {
+	__tostring = function()
+		return stdio.format(inner)
+	end,
+})
+
+print(outer)

types/datetime.luau

@@ -87,10 +87,19 @@ export type DateTimeValueArguments = DateTimeValues & OptionalMillisecond
 ]=]
 export type DateTimeValueReturns = DateTimeValues & Millisecond
 
+--[=[
+	@prop unixTimestamp number
+	@within DateTime
+	Number of seconds passed since the UNIX epoch.
+]=]
+
+--[=[
+	@prop unixTimestampMillis number
+	@within DateTime
+	Number of milliseconds passed since the UNIX epoch.
+]=]
 local DateTime = {
-	--- Number of seconds passed since the UNIX epoch.
 	unixTimestamp = (nil :: any) :: number,
-	--- Number of milliseconds passed since the UNIX epoch.
 	unixTimestampMillis = (nil :: any) :: number,
 }
 

types/net.luau

@@ -173,9 +173,9 @@ export type ServeHandle = {
 ]=]
 export type WebSocket = {
 	closeCode: number?,
-	close: (code: number?) -> (),
-	send: (message: (string | buffer)?, asBinaryMessage: boolean?) -> (),
-	next: () -> string?,
+	close: (self: WebSocket, code: number?) -> (),
+	send: (self: WebSocket, message: (string | buffer)?, asBinaryMessage: boolean?) -> (),
+	next: (self: WebSocket) -> string?,
 }
 
 --[=[

types/process.luau

@@ -1,10 +1,14 @@
 export type OS = "linux" | "macos" | "windows"
 export type Arch = "x86_64" | "aarch64"
+export type Endianness = "big" | "little"
 
 export type SpawnOptionsStdioKind = "default" | "inherit" | "forward" | "none"
 export type SpawnOptionsStdio = {
 	stdout: SpawnOptionsStdioKind?,
 	stderr: SpawnOptionsStdioKind?,
+}
+
+export type ExecuteOptionsStdio = SpawnOptionsStdio & {
 	stdin: string?,
 }
 
@@ -12,27 +16,117 @@ export type SpawnOptionsStdio = {
 	@interface SpawnOptions
 	@within Process
 
-	A dictionary of options for `process.spawn`, with the following available values:
+	A dictionary of options for `process.create`, with the following available values:
 
 	* `cwd` - The current working directory for the process
 	* `env` - Extra environment variables to give to the process
 	* `shell` - Whether to run in a shell or not - set to `true` to run using the default shell, or a string to run using a specific shell
 	* `stdio` - How to treat output and error streams from the child process - see `SpawnOptionsStdioKind` and `SpawnOptionsStdio` for more info
-	* `stdin` - Optional standard input to pass to spawned child process
 ]=]
 export type SpawnOptions = {
 	cwd: string?,
 	env: { [string]: string }?,
 	shell: (boolean | string)?,
+}
+
+--[=[
+	@interface ExecuteOptions
+	@within Process
+
+	A dictionary of options for `process.exec`, with the following available values:
+
+	* `cwd` - The current working directory for the process
+	* `env` - Extra environment variables to give to the process
+	* `shell` - Whether to run in a shell or not - set to `true` to run using the default shell, or a string to run using a specific shell
+	* `stdio` - How to treat output and error streams from the child process - see `SpawnOptionsStdioKind` and `ExecuteOptionsStdio` for more info
+	* `stdin` - Optional standard input to pass to executed child process
+]=]
+export type ExecuteOptions = SpawnOptions & {
 	stdio: (SpawnOptionsStdioKind | SpawnOptionsStdio)?,
 	stdin: string?, -- TODO: Remove this since it is now available in stdio above, breaking change
 }
 
 --[=[
-	@interface SpawnResult
+	@class ChildProcessReader
 	@within Process
 
-	Result type for child processes in `process.spawn`.
+	A reader class to read data from a child process' streams in realtime.
+]=]
+local ChildProcessReader = {}
+
+--[=[
+	@within ChildProcessReader
+
+	Reads a chunk of data (specified length or a default of 8 bytes at a time) from 
+	the reader as a string. Returns nil if there is no more data to read.
+
+	This function may yield until there is new data to read from reader, if all data
+	till present has already been read, and the process has not exited.
+
+	@return The string containing the data read from the reader
+]=]
+function ChildProcessReader:read(chunkSize: number?): string?
+	return nil :: any
+end
+
+--[=[
+	@within ChildProcessReader
+
+	Reads all the data currently present in the reader as a string.
+	This function will yield until the process exits.
+
+	@return The string containing the data read from the reader
+]=]
+function ChildProcessReader:readToEnd(): string
+	return nil :: any
+end
+
+--[=[
+	@class ChildProcessWriter
+	@within Process
+
+	A writer class to write data to a child process' streams in realtime.
+]=]
+local ChildProcessWriter = {}
+
+--[=[
+	@within ChildProcessWriter
+
+	Writes a buffer or string of data to the writer.
+
+	@param data The data to write to the writer
+]=]
+function ChildProcessWriter:write(data: buffer | string): ()
+	return nil :: any
+end
+
+--[=[
+	@interface ChildProcess
+	@within Process
+
+	Result type for child processes in `process.create`.
+
+	This is a dictionary containing the following values:
+
+	* `stdin` - A writer to write to the child process' stdin - see `ChildProcessWriter` for more info
+	* `stdout` - A reader to read from the child process' stdout - see `ChildProcessReader` for more info
+	* `stderr` - A reader to read from the child process' stderr - see `ChildProcessReader` for more info
+	* `kill` - A function that kills the child process
+	* `status` - A function that yields and returns the exit status of the child process
+]=]
+export type ChildProcess = {
+	stdin: typeof(ChildProcessWriter),
+	stdout: typeof(ChildProcessReader),
+	stderr: typeof(ChildProcessReader),
+	kill: () -> (),
+	status: () -> { ok: boolean, code: number },
+}
+
+--[=[
+	@interface ExecuteResult
+	@within Process
+
+	Result type for child processes in `process.exec`.
 
 	This is a dictionary containing the following values:
 
@@ -41,7 +135,7 @@ export type SpawnOptions = {
 	* `stdout` - The full contents written to stdout by the child process, or an empty string if nothing was written
 	* `stderr` - The full contents written to stderr by the child process, or an empty string if nothing was written
 ]=]
-export type SpawnResult = {
+export type ExecuteResult = {
 	ok: boolean,
 	code: number,
 	stdout: string,
@@ -73,8 +167,8 @@ export type SpawnResult = {
 	-- Getting the current os and processor architecture
 	print("Running " .. process.os .. " on " .. process.arch .. "!")
 
-	-- Spawning a child process
-	local result = process.spawn("program", {
+	-- Executing a command
+	local result = process.exec("program", {
 		"cli argument",
 		"other cli argument"
 	})
@@ -83,6 +177,19 @@ export type SpawnResult = {
 	else
 		print(result.stderr)
 	end
+
+	-- Spawning a child process
+	local child = process.create("program", {
+		"cli argument",
+		"other cli argument"
+	})
+
+	-- Writing to the child process' stdin
+	child.stdin:write("Hello from Lune!")
+
+	-- Reading from the child process' stdout
+	local data = child.stdout:read()
+	print(buffer.tostring(data))
 	```
 ]=]
 local process = {}
@@ -116,6 +223,20 @@ process.os = (nil :: any) :: OS
 ]=]
 process.arch = (nil :: any) :: Arch
 
+--[=[
+	@within Process
+	@prop endianness Endianness
+	@tag read_only
+
+	The endianness of the processor currently being used.
+
+	Possible values:
+
+	* `"big"`
+	* `"little"`
+]=]
+process.endianness = (nil :: any) :: Endianness
+
 --[=[
 	@within Process
 	@prop args { string }
@@ -163,19 +284,44 @@ end
 --[=[
 	@within Process
 
-	Spawns a child process that will run the program `program`, and returns a dictionary that describes the final status and ouput of the child process.
+	Spawns a child process in the background that runs the program `program`, and immediately returns
+	readers and writers to communicate with it.
+
+	In order to execute a command and wait for its output, see `process.exec`.
 
 	The second argument, `params`, can be passed as a list of string parameters to give to the program.
 
 	The third argument, `options`, can be passed as a dictionary of options to give to the child process.
 	Refer to the documentation for `SpawnOptions` for specific option keys and their values.
 
-	@param program The program to spawn as a child process
+	@param program The program to Execute as a child process
+	@param params Additional parameters to pass to the program
+	@param options A dictionary of options for the child process
+	@return A dictionary with the readers and writers to communicate with the child process
+]=]
+function process.create(program: string, params: { string }?, options: SpawnOptions?): ChildProcess
+	return nil :: any
+end
+
+--[=[
+	@within Process
+
+	Executes a child process that will execute the command `program`, waiting for it to exit. 
+	Upon exit, it returns a dictionary that describes the final status and ouput of the child process.
+
+	In order to spawn a child process in the background, see `process.create`.
+
+	The second argument, `params`, can be passed as a list of string parameters to give to the program.
+
+	The third argument, `options`, can be passed as a dictionary of options to give to the child process.
+	Refer to the documentation for `ExecuteOptions` for specific option keys and their values.
+
+	@param program The program to Execute as a child process
 	@param params Additional parameters to pass to the program
 	@param options A dictionary of options for the child process
 	@return A dictionary representing the result of the child process
 ]=]
-function process.spawn(program: string, params: { string }?, options: SpawnOptions?): SpawnResult
+function process.exec(program: string, params: { string }?, options: ExecuteOptions?): ExecuteResult
 	return nil :: any
 end
 

types/regex.luau

@@ -19,67 +19,82 @@ local RegexMatch = {
 
 type RegexMatch = typeof(RegexMatch)
 
+local RegexCaptures = {}
+
+function RegexCaptures.get(self: RegexCaptures, index: number): RegexMatch?
+	return nil :: any
+end
+
+function RegexCaptures.group(self: RegexCaptures, group: string): RegexMatch?
+	return nil :: any
+end
+
+function RegexCaptures.format(self: RegexCaptures, format: string): string
+	return nil :: any
+end
+
 --[=[
 	@class RegexCaptures
 
 	Captures from a regular expression.
 ]=]
-local RegexCaptures = {}
+export type RegexCaptures = typeof(setmetatable(
+	{} :: {
+		--[=[
+			@within RegexCaptures
+			@tag Method
+			@method get
 
---[=[
-	@within RegexCaptures
-	@tag Method
+			Returns the match at the given index, if one exists.
 
-	Returns the match at the given index, if one exists.
+			@param index -- The index of the match to get
+			@return RegexMatch -- The match, if one exists
+		]=]
 
-	@param index -- The index of the match to get
-	@return RegexMatch -- The match, if one exists
-]=]
-function RegexCaptures.get(self: RegexCaptures, index: number): RegexMatch?
-	return nil :: any
-end
+		get: (self: RegexCaptures, index: number) -> RegexMatch?,
 
---[=[
-	@within RegexCaptures
-	@tag Method
+		--[=[
+			@within RegexCaptures
+			@tag Method
+			@method group
 
-	Returns the match for the given named match group, if one exists.
+			Returns the match for the given named match group, if one exists.
 
-	@param group -- The name of the group to get
-	@return RegexMatch -- The match, if one exists
-]=]
-function RegexCaptures.group(self: RegexCaptures, group: string): RegexMatch?
-	return nil :: any
-end
+			@param group -- The name of the group to get
+			@return RegexMatch -- The match, if one exists
+		]=]
+		group: (self: RegexCaptures, group: string) -> RegexMatch?,
 
---[=[
-	@within RegexCaptures
-	@tag Method
+		--[=[
+			@within RegexCaptures
+			@tag Method
+			@method format
 
-	Formats the captures using the given format string.
+			Formats the captures using the given format string.
 
-	### Example usage
+			### Example usage
 
-	```lua
-	local regex = require("@lune/regex")
+			```lua
+			local regex = require("@lune/regex")
 
-	local re = regex.new("(?<day>[0-9]{2})-(?<month>[0-9]{2})-(?<year>[0-9]{4})")
+			local re = regex.new("(?<day>[0-9]{2})-(?<month>[0-9]{2})-(?<year>[0-9]{4})")
 
-	local caps = re:captures("On 14-03-2010, I became a Tenneessee lamb.");
-	assert(caps ~= nil, "Example pattern should match example text")
+			local caps = re:captures("On 14-03-2010, I became a Tenneessee lamb.");
+			assert(caps ~= nil, "Example pattern should match example text")
 
-	local formatted = caps:format("year=$year, month=$month, day=$day")
-	print(formatted) -- "year=2010, month=03, day=14"
-	```
+			local formatted = caps:format("year=$year, month=$month, day=$day")
+			print(formatted) -- "year=2010, month=03, day=14"
+			```
 
-	@param format -- The format string to use
-	@return string -- The formatted string
-]=]
-function RegexCaptures.format(self: RegexCaptures, format: string): string
-	return nil :: any
-end
-
-export type RegexCaptures = typeof(RegexCaptures)
+			@param format -- The format string to use
+			@return string -- The formatted string
+		]=]
+		format: (self: RegexCaptures, format: string) -> string,
+	},
+	{} :: {
+		__len: (self: RegexCaptures) -> number,
+	}
+))
 
 local Regex = {}
 

types/roblox.luau

@@ -504,4 +504,95 @@ roblox.Instance = (nil :: any) :: {
 	new: ((className: "DataModel") -> DataModel) & ((className: string) -> Instance),
 }
 
+--[=[
+	@within Roblox
+	@tag must_use
+
+	Returns the path to the system's Roblox Studio executable.
+
+	There is no guarantee that this will exist, but if Studio is installed this
+	is where it will be.
+
+	### Example usage
+
+	```lua
+	local roblox = require("@lune/roblox")
+
+	local pathToStudio = roblox.studioApplicationPath()
+	print("Studio is located at:", pathToStudio)
+	```
+]=]
+function roblox.studioApplicationPath(): string
+	return nil :: any
+end
+
+--[=[
+	@within Roblox
+	@tag must_use
+
+	Returns the path to the `Content` folder of the system's current Studio
+	install.
+
+	This folder will always exist if Studio is installed.
+
+	### Example usage
+
+	```lua
+	local roblox = require("@lune/roblox")
+
+	local pathToContent = roblox.studioContentPath()
+	print("Studio's content folder is located at:", pathToContent)
+	```
+]=]
+function roblox.studioContentPath(): string
+	return nil :: any
+end
+
+--[=[
+	@within Roblox
+	@tag must_use
+
+	Returns the path to the `plugin` folder of the system's current Studio
+	install. This is the path where local plugins are installed.
+
+	This folder may not exist if the user has never installed a local plugin.
+	It will also not necessarily take into account custom plugin directories
+	set from Studio.
+
+	### Example usage
+
+	```lua
+	local roblox = require("@lune/roblox")
+
+	local pathToPluginFolder = roblox.studioPluginPath()
+	print("Studio's plugin folder is located at:", pathToPluginFolder)
+	```
+]=]
+function roblox.studioPluginPath(): string
+	return nil :: any
+end
+
+--[=[
+	@within Roblox
+	@tag must_use
+
+	Returns the path to the `BuiltInPlugin` folder of the system's current
+	Studio install. This is the path where built-in plugins like the ToolBox
+	are installed.
+
+	This folder will always exist if Studio is installed.
+
+	### Example usage
+
+	```lua
+	local roblox = require("@lune/roblox")
+
+	local pathToPluginFolder = roblox.studioBuiltinPluginPath()
+	print("Studio's built-in plugin folder is located at:", pathToPluginFolder)
+	```
+]=]
+function roblox.studioBuiltinPluginPath(): string
+	return nil :: any
+end
+
 return roblox