task_local context over context objects

- interner impls logically separate from API in orchid-base (default host interner still in base for testing)
- error reporting, logging, and a variety of other features passed down via context in extension, not yet in host to maintain library-ish profile, should consider options
- no global spawn mechanic, the host has a spawn function but extensions only get a stash for enqueuing async work in sync callbacks which is then explicitly, manually, and with strict order popped and awaited
- still deadlocks nondeterministically for some ungodly reason

orchid-std/src/macros/rule/state.rs

@@ -2,7 +2,7 @@
 use std::any::Any;
 
 use hashbrown::HashMap;
-use orchid_base::interner::Tok;
+use orchid_base::interner::IStr;
 use orchid_base::join::join_maps;
 use orchid_base::location::Pos;
 use orchid_base::match_mapping;
@@ -30,11 +30,11 @@ pub enum StateEntry<'a> {
 }
 #[derive(Clone, Debug)]
 pub struct MatchState<'a> {
-	placeholders: HashMap<Tok<String>, StateEntry<'a>>,
+	placeholders: HashMap<IStr, StateEntry<'a>>,
 	name_posv: HashMap<Sym, Vec<Pos>>,
 }
 impl<'a> MatchState<'a> {
-	pub fn from_ph(key: Tok<String>, entry: StateEntry<'a>) -> Self {
+	pub fn from_ph(key: IStr, entry: StateEntry<'a>) -> Self {
 		Self { placeholders: HashMap::from([(key, entry)]), name_posv: HashMap::new() }
 	}
 	pub fn combine(self, s: Self) -> Self {
@@ -45,7 +45,7 @@ impl<'a> MatchState<'a> {
 			}),
 		}
 	}
-	pub fn ph_len(&self, key: &Tok<String>) -> Option<usize> {
+	pub fn ph_len(&self, key: &IStr) -> Option<usize> {
 		match self.placeholders.get(key)? {
 			StateEntry::Vec(slc) => Some(slc.len()),
 			_ => None,
@@ -57,10 +57,8 @@ impl<'a> MatchState<'a> {
 	pub fn names(&self) -> impl Iterator<Item = (Sym, &[Pos])> {
 		self.name_posv.iter().map(|(sym, vec)| (sym.clone(), &vec[..]))
 	}
-	pub fn get(&self, key: &Tok<String>) -> Option<&StateEntry<'a>> { self.placeholders.get(key) }
-	pub fn remove(&mut self, name: Tok<String>) -> Option<StateEntry<'a>> {
-		self.placeholders.remove(&name)
-	}
+	pub fn get(&self, key: &IStr) -> Option<&StateEntry<'a>> { self.placeholders.get(key) }
+	pub fn remove(&mut self, name: IStr) -> Option<StateEntry<'a>> { self.placeholders.remove(&name) }
 	pub fn mk_owned(self) -> OwnedState {
 		OwnedState {
 			placeholders: (self.placeholders.into_iter())
@@ -88,10 +86,10 @@ pub enum OwnedEntry {
 	Scalar(MacTree),
 }
 pub struct OwnedState {
-	placeholders: HashMap<Tok<String>, OwnedEntry>,
+	placeholders: HashMap<IStr, OwnedEntry>,
 	name_posv: HashMap<Sym, Vec<Pos>>,
 }
 impl OwnedState {
-	pub fn get(&self, key: &Tok<String>) -> Option<&OwnedEntry> { self.placeholders.get(key) }
+	pub fn get(&self, key: &IStr) -> Option<&OwnedEntry> { self.placeholders.get(key) }
 	pub fn positions(&self, name: &Sym) -> &[Pos] { self.name_posv.get(name).map_or(&[], |v| &v[..]) }
 }