Fixes memory issue

src/lib.rs

@@ -11,6 +11,7 @@
 #![feature(is_some_with)]
 #![feature(core_ffi_c)]
 #![feature(new_uninit)]
+#![feature(get_mut_unchecked)]
 
 //! PkmnLib
 //! PkmnLib is a full featured implementation of Pokemon. while currently focused on implementing

src/script_implementations/wasm/export_registry/mod.rs

@@ -1,9 +1,7 @@
 use core::ffi::c_char;
-use std::borrow::Cow;
 use std::ffi::CString;
-use std::mem::{align_of, size_of};
+use std::mem::align_of;
 
-use wasmer::wasmparser::Data;
 use wasmer::{Exports, Function, Store};
 
 use crate::dynamic_data::DynamicLibrary;
@@ -82,7 +80,7 @@ fn const_string_get_hash(env: &WebAssemblyEnv, string_key: ExternRef<StringKey>)
 
 fn const_string_get_str(env: &WebAssemblyEnv, string_key: ExternRef<StringKey>) -> u32 {
     let string_key = string_key.value(env).str();
-    let mut s: CString = CString::new(string_key.as_bytes()).unwrap();
+    let s: CString = CString::new(string_key.as_bytes()).unwrap();
     let wasm_string_ptr = env
         .resolver()
         .allocate_mem(string_key.len() as u32, align_of::<CString>() as u32);

src/script_implementations/wasm/script_resolver.rs

@@ -1,6 +1,4 @@
-use std::any::{Any, TypeId};
 use std::fmt::{Debug, Formatter};
-use std::pin::Pin;
 use std::sync::Arc;
 
 use hashbrown::{HashMap, HashSet};
@@ -46,7 +44,7 @@ struct ScriptCapabilitiesKey {
 
 impl WebAssemblyScriptResolver {
     /// Instantiates a new WebAssemblyScriptResolver.
-    pub fn new() -> Self {
+    pub fn new() -> Box<WebAssemblyScriptResolver> {
         let config = Cranelift::default();
         let mut features = Features::new();
         features.multi_value = true;
@@ -54,7 +52,7 @@ impl WebAssemblyScriptResolver {
         let universal = Universal::new(config).features(features);
         let engine = universal.engine();
         let store = Store::new(&engine);
-        Self {
+        let s = Self {
             engine,
             store,
             module: Default::default(),
@@ -69,7 +67,8 @@ impl WebAssemblyScriptResolver {
             extern_ref_pointers: Default::default(),
             extern_ref_pointers_lookup: Default::default(),
             extern_ref_type_lookup: Default::default(),
-        }
+        };
+        Box::new(s)
     }
 
     /// Load a compiled WASM module.
@@ -146,7 +145,7 @@ impl WebAssemblyScriptResolver {
     /// its proper value, validates its type, and returns the value.
     pub fn get_extern_ref_value<T: UniqueTypeId<u64>>(&self, index: u32) -> &T {
         let read_guard = self.extern_ref_pointers.read();
-        let ptr = read_guard.get(index as usize).unwrap();
+        let ptr = read_guard.get((index - 1) as usize).unwrap();
         let expected_type_id = self.extern_ref_type_lookup.read()[&ptr];
         if expected_type_id != T::id().0 {
             panic!("Extern ref was accessed with wrong type");