[WIP] fix deadlock in AtomTable::build_with

src/forms.rs

@@ -16,6 +16,8 @@ use fxhash::FxBuildHasher;
 use indexmap::{IndexMap, IndexSet};
 use ordered_float::OrderedFloat;
 
+use tokio::sync::RwLock;
+
 use std::cell::Cell;
 use std::collections::VecDeque;
 use std::convert::TryFrom;
@@ -481,10 +483,10 @@ pub enum AtomOrString {
 
 impl AtomOrString {
     #[inline]
-    pub fn as_atom(&self, atom_tbl: &mut AtomTable) -> Atom {
+    pub fn as_atom(&self, atom_tbl: &RwLock<AtomTable>) -> Atom {
         match self {
             &AtomOrString::Atom(atom) => atom,
-            AtomOrString::String(string) => atom_tbl.build_with(&string),
+            AtomOrString::String(string) => AtomTable::build_with(atom_tbl, &string),
         }
     }