Fix no_std builds.

src/any.rs

@@ -696,6 +696,7 @@ impl Dynamic {
 
         match self.0 {
             Union::Variant(value) => (*value).as_box_any().downcast().map(|x| *x).ok(),
+            #[cfg(not(feature = "no_shared"))]
             Union::Shared(_) => unreachable!(),
             _ => None,
         }

src/engine.rs

@@ -1354,6 +1354,7 @@ impl Engine {
                             .get_fn(hash_fn, false)
                             .or_else(|| self.packages.get_fn(hash_fn, false))
                         {
+                            #[cfg(not(feature = "no_shared"))]
                             let mut lock_guard;
 
                             #[cfg(not(feature = "no_shared"))]

src/fn_call.rs

@@ -5,7 +5,7 @@ use crate::calc_fn_hash;
 use crate::engine::{
     search_imports, search_namespace, search_scope_only, Engine, Imports, State, KEYWORD_DEBUG,
     KEYWORD_EVAL, KEYWORD_FN_PTR, KEYWORD_FN_PTR_CALL, KEYWORD_FN_PTR_CURRY, KEYWORD_PRINT,
-    KEYWORD_TYPE_OF,
+    KEYWORD_SHARED, KEYWORD_TAKE, KEYWORD_TYPE_OF,
 };
 use crate::error::ParseErrorType;
 use crate::fn_native::{FnCallArgs, FnPtr};
@@ -34,9 +34,6 @@ use crate::engine::{FN_IDX_GET, FN_IDX_SET};
 #[cfg(not(feature = "no_object"))]
 use crate::engine::{Map, Target, FN_GET, FN_SET};
 
-#[cfg(not(feature = "no_shared"))]
-use crate::engine::{KEYWORD_SHARED, KEYWORD_TAKE};
-
 use crate::stdlib::{
     any::{type_name, TypeId},
     boxed::Box,
@@ -661,10 +658,20 @@ impl Engine {
             ))
         } else if _fn_name == KEYWORD_SHARED && idx.is_empty() {
             // take call
+            #[cfg(not(feature = "no_shared"))]
+            {
                 Ok((obj.clone().into_shared(), false))
+            }
+            #[cfg(feature = "no_shared")]
+            unreachable!()
         } else if _fn_name == KEYWORD_TAKE && idx.is_empty() {
             // take call
+            #[cfg(not(feature = "no_shared"))]
+            {
                 Ok((obj.clone_inner_data::<Dynamic>().unwrap(), false))
+            }
+            #[cfg(feature = "no_shared")]
+            unreachable!()
         } else {
             #[cfg(not(feature = "no_object"))]
             let redirected;