Do not search for global functions if scripted.

src/eval/stmt.rs

@@ -865,7 +865,7 @@ impl Engine {
                             #[cfg(not(feature = "no_module"))]
                             if global.scope_level == 0
                                 && access == AccessMode::ReadOnly
-                                && lib.iter().any(|&m| !m.is_empty())
+                                && lib.iter().copied().any(Module::is_empty)
                             {
                                 crate::func::locked_write(global.constants.get_or_insert_with(
                                     || {

src/func/call.rs

@@ -215,19 +215,21 @@ impl Engine {
                 loop {
                     let func = lib
                         .iter()
-                        .find_map(|&m| m.get_fn(hash).map(|f| (f, m.id())))
+                        .copied()
-                        .or_else(|| {
+                        .chain(self.global_modules.iter().map(|m| m.as_ref()))
-                            self.global_modules
+                        .find_map(|m| m.get_fn(hash).map(|f| (f, m.id())));
-                                .iter()
-                                .find_map(|m| m.get_fn(hash).map(|f| (f, m.id())))
-                        });
 
                     #[cfg(not(feature = "no_module"))]
-                    let func = func.or_else(|| _global.get_qualified_fn(hash)).or_else(|| {
+                    let func = if args.is_none() {
+                        // Scripted functions are not exposed globally
+                        func
+                    } else {
+                        func.or_else(|| _global.get_qualified_fn(hash)).or_else(|| {
                             self.global_sub_modules
                                 .values()
                                 .find_map(|m| m.get_qualified_fn(hash).map(|f| (f, m.id())))
-                    });
+                        })
+                    };
 
                     if let Some((f, s)) = func {
                         // Specific version found
@@ -247,7 +249,7 @@ impl Engine {
 
                     // Check `Dynamic` parameters for functions with parameters
                     if allow_dynamic && max_bitmask == 0 && num_args > 0 {
-                        let is_dynamic = lib.iter().any(|&m| m.may_contain_dynamic_fn(hash_base))
+                        let is_dynamic = lib.iter().any(|m| m.may_contain_dynamic_fn(hash_base))
                             || self
                                 .global_modules
                                 .iter()

src/func/script.rs

@@ -240,7 +240,7 @@ impl Engine {
         }
 
         // First check script-defined functions
-        let result = lib.iter().any(|&m| m.contains_fn(hash_script))
+        let result = lib.iter().any(|m| m.contains_fn(hash_script))
             // Then check the global namespace and packages
             || self.global_modules.iter().any(|m| m.contains_fn(hash_script));
 

src/module/mod.rs

@@ -182,8 +182,8 @@ pub struct Module {
     /// Flattened collection of all functions, native Rust and scripted.
     /// including those in sub-modules.
     all_functions: Option<StraightHashMap<CallableFunction>>,
-    /// Native Rust functions (in scripted hash format) that contain [`Dynamic`] parameters.
+    /// Bloom filter on native Rust functions (in scripted hash format) that contain [`Dynamic`] parameters.
-    dynamic_functions: BloomFilterU64,
+    dynamic_functions_filter: BloomFilterU64,
     /// Iterator functions, keyed by the type producing the iterator.
     type_iterators: Option<BTreeMap<TypeId, Shared<IteratorFn>>>,
     /// Flattened collection of iterator functions, including those in sub-modules.
@@ -300,7 +300,7 @@ impl Module {
             all_variables: None,
             functions: StraightHashMap::with_capacity_and_hasher(capacity, Default::default()),
             all_functions: None,
-            dynamic_functions: BloomFilterU64::new(),
+            dynamic_functions_filter: BloomFilterU64::new(),
             type_iterators: None,
             all_type_iterators: None,
             indexed: true,
@@ -442,7 +442,7 @@ impl Module {
         self.all_variables = None;
         self.functions.clear();
         self.all_functions = None;
-        self.dynamic_functions.clear();
+        self.dynamic_functions_filter.clear();
         self.type_iterators = None;
         self.all_type_iterators = None;
         self.indexed = false;
@@ -1026,7 +1026,7 @@ impl Module {
         let hash_fn = combine_hashes(hash_script, hash_params);
 
         if is_dynamic {
-            self.dynamic_functions.mark(hash_script);
+            self.dynamic_functions_filter.mark(hash_script);
         }
 
         self.functions.insert(
@@ -1547,7 +1547,7 @@ impl Module {
     #[inline(always)]
     #[must_use]
     pub(crate) fn may_contain_dynamic_fn(&self, hash_script: u64) -> bool {
-        !self.dynamic_functions.is_absent(hash_script)
+        !self.dynamic_functions_filter.is_absent(hash_script)
     }
 
     /// Does the particular namespace-qualified function exist in the [`Module`]?
@@ -1592,7 +1592,7 @@ impl Module {
             None => self.variables = other.variables,
         }
         self.functions.extend(other.functions.into_iter());
-        self.dynamic_functions += &other.dynamic_functions;
+        self.dynamic_functions_filter += &other.dynamic_functions_filter;
         match self.type_iterators {
             Some(ref mut m) if other.type_iterators.is_some() => {
                 m.extend(other.type_iterators.unwrap().into_iter())
@@ -1635,7 +1635,7 @@ impl Module {
             None => self.variables = other.variables,
         }
         self.functions.extend(other.functions.into_iter());
-        self.dynamic_functions += &other.dynamic_functions;
+        self.dynamic_functions_filter += &other.dynamic_functions_filter;
         match self.type_iterators {
             Some(ref mut m) if other.type_iterators.is_some() => {
                 m.extend(other.type_iterators.unwrap().into_iter())
@@ -1685,7 +1685,7 @@ impl Module {
         for (&k, v) in &other.functions {
             self.functions.entry(k).or_insert_with(|| v.clone());
         }
-        self.dynamic_functions += &other.dynamic_functions;
+        self.dynamic_functions_filter += &other.dynamic_functions_filter;
         if let Some(ref type_iterators) = other.type_iterators {
             let t = self
                 .type_iterators
@@ -1761,7 +1761,7 @@ impl Module {
                 })
                 .map(|(&k, v)| (k, v.clone())),
         );
-        self.dynamic_functions += &other.dynamic_functions;
+        self.dynamic_functions_filter += &other.dynamic_functions_filter;
 
         if let Some(ref type_iterators) = other.type_iterators {
             if let Some(ref mut t) = self.type_iterators {
@@ -1805,7 +1805,7 @@ impl Module {
             })
             .collect();
 
-        self.dynamic_functions.clear();
+        self.dynamic_functions_filter.clear();
         self.all_functions = None;
         self.all_variables = None;
         self.all_type_iterators = None;
@@ -2136,7 +2136,6 @@ impl Module {
             if let Some(ref t) = module.type_iterators {
                 for (&type_id, func) in t {
                     type_iterators.insert(type_id, func.clone());
-                    contains_indexed_global_functions = true;
                 }
             }
 
@@ -2249,7 +2248,6 @@ impl Module {
             self.all_type_iterators
                 .get_or_insert_with(|| Default::default())
                 .insert(type_id, func.clone());
-            self.contains_indexed_global_functions = true;
         }
         self.type_iterators
             .get_or_insert_with(|| Default::default())

src/optimizer.rs

@@ -1229,7 +1229,7 @@ fn optimize_expr(expr: &mut Expr, state: &mut OptimizerState, _chaining: bool) {
         => {
             // First search for script-defined functions (can override built-in)
             #[cfg(not(feature = "no_function"))]
-            let has_script_fn = state.lib.iter().any(|&m| m.get_script_fn(&x.name, x.args.len()).is_some());
+            let has_script_fn = state.lib.iter().copied().any(|m| m.get_script_fn(&x.name, x.args.len()).is_some());
             #[cfg(feature = "no_function")]
             let has_script_fn = false;