Refine docs.

src/module/resolvers/collection.rs

@@ -8,7 +8,7 @@ use crate::stdlib::{boxed::Box, ops::AddAssign, vec::Vec};
 /// Module resolution service that holds a collection of module resolves,
 /// to be searched in sequential order.
 ///
-/// # Examples
+/// # Example
 ///
 /// ```
 /// use rhai::{Engine, Module};
@@ -28,7 +28,7 @@ pub struct ModuleResolversCollection(Vec<Box<dyn ModuleResolver>>);
 impl ModuleResolversCollection {
     /// Create a new `ModuleResolversCollection`.
     ///
-    /// # Examples
+    /// # Example
     ///
     /// ```
     /// use rhai::{Engine, Module};
@@ -80,9 +80,7 @@ impl ModuleResolversCollection {
     /// The other `ModuleResolversCollection` is consumed.
     #[inline(always)]
     pub fn append(&mut self, other: Self) {
-        if !other.is_empty() {
-            self.0.extend(other.0.into_iter());
-        }
+        self.0.extend(other.0.into_iter());
     }
 }
 

src/module/resolvers/file.rs

@@ -22,7 +22,7 @@ use crate::stdlib::{boxed::Box, collections::HashMap, path::PathBuf, string::Str
 /// plus all those defined within the same module are _merged_ into a _unified_ namespace before
 /// the call.  Therefore, functions in a module script can cross-call each other.
 ///
-/// # Examples
+/// # Example
 ///
 /// ```
 /// use rhai::Engine;
@@ -53,7 +53,7 @@ impl Default for FileModuleResolver {
 impl FileModuleResolver {
     /// Create a new `FileModuleResolver` with a specific base path.
     ///
-    /// # Examples
+    /// # Example
     ///
     /// ```
     /// use rhai::Engine;
@@ -75,7 +75,7 @@ impl FileModuleResolver {
     ///
     /// The default extension is `.rhai`.
     ///
-    /// # Examples
+    /// # Example
     ///
     /// ```
     /// use rhai::Engine;
@@ -102,7 +102,7 @@ impl FileModuleResolver {
 
     /// Create a new `FileModuleResolver` with the current directory as base path.
     ///
-    /// # Examples
+    /// # Example
     ///
     /// ```
     /// use rhai::Engine;

src/module/resolvers/stat.rs

@@ -7,7 +7,7 @@ use crate::stdlib::{boxed::Box, collections::HashMap, ops::AddAssign, string::St
 
 /// Module resolution service that serves modules added into it.
 ///
-/// # Examples
+/// # Example
 ///
 /// ```
 /// use rhai::{Engine, Module};
@@ -28,7 +28,7 @@ pub struct StaticModuleResolver(HashMap<String, Module>);
 impl StaticModuleResolver {
     /// Create a new `StaticModuleResolver`.
     ///
-    /// # Examples
+    /// # Example
     ///
     /// ```
     /// use rhai::{Engine, Module};