Revise required/forbidden features in examples.

Cargo.toml

@@ -82,6 +82,10 @@ name = "rhai-run"
 name = "rhai-dbg"
 required-features = ["debugging"]
 
+[[example]]
+name = "serde"
+required-features = ["serde"]
+
 [profile.release]
 lto = "fat"
 codegen-units = 1

examples/arrays_and_structs.rs

@@ -1,5 +1,10 @@
 //! An example showing how to register a Rust type and use it with arrays.
 
+#[cfg(any(feature = "no_index", feature = "no_object"))]
+fn main() {
+    panic!("This example does not run under 'no_index' or 'no_object'.")
+}
+
 use rhai::{Engine, EvalAltResult};
 
 #[cfg(not(feature = "no_index"))]
@@ -60,8 +65,3 @@ fn main() -> Result<(), Box<EvalAltResult>> {
 
     Ok(())
 }
-
-#[cfg(any(feature = "no_index", feature = "no_object"))]
-fn main() {
-    panic!("This example does not run under 'no_index' or 'no_object'.")
-}

examples/custom_types_and_methods.rs

@@ -1,5 +1,10 @@
 //! An example showing how to register a Rust type and methods/getters/setters for it.
 
+#[cfg(feature = "no_object")]
+fn main() {
+    panic!("This example does not run under 'no_object'.");
+}
+
 use rhai::{Engine, EvalAltResult};
 
 #[cfg(not(feature = "no_object"))]
@@ -61,8 +66,3 @@ fn main() -> Result<(), Box<EvalAltResult>> {
 
     Ok(())
 }
-
-#[cfg(feature = "no_object")]
-fn main() {
-    panic!("This example does not run under 'no_object'.");
-}

examples/event_handler_js/main.rs

@@ -1,43 +1,45 @@
 //! Implementation of the Event Handler With State Pattern - JS Style
-use rhai::{Dynamic, Engine, Scope, AST};
 
-#[cfg(not(feature = "no_object"))]
-use rhai::Map;
-
-use std::io::{stdin, stdout, Write};
-
-const SCRIPT_FILE: &str = "event_handler_js/script.rhai";
-
-#[derive(Debug)]
-struct Handler {
-    pub engine: Engine,
-    pub scope: Scope<'static>,
-    pub states: Dynamic,
-    pub ast: AST,
-}
-
-fn print_scope(scope: &Scope) {
-    for (i, (name, constant, value)) in scope.iter_raw().enumerate() {
-        #[cfg(not(feature = "no_closure"))]
-        let value_is_shared = if value.is_shared() { " (shared)" } else { "" };
-        #[cfg(feature = "no_closure")]
-        let value_is_shared = "";
-
-        println!(
-            "[{}] {}{}{} = {:?}",
-            i + 1,
-            if constant { "const " } else { "" },
-            name,
-            value_is_shared,
-            *value.read_lock::<Dynamic>().unwrap(),
-        )
-    }
-    println!();
+#[cfg(any(feature = "no_function", feature = "no_object"))]
+pub fn main() {
+    panic!("This example does not run under 'no_function' or 'no_object'.")
 }
 
 #[cfg(not(feature = "no_function"))]
 #[cfg(not(feature = "no_object"))]
 pub fn main() {
+    use rhai::{Dynamic, Engine, Map, Scope, AST};
+    use std::io::{stdin, stdout, Write};
+
+    const SCRIPT_FILE: &str = "event_handler_js/script.rhai";
+
+    #[derive(Debug)]
+    struct Handler {
+        pub engine: Engine,
+        pub scope: Scope<'static>,
+        pub states: Dynamic,
+        pub ast: AST,
+    }
+
+    fn print_scope(scope: &Scope) {
+        for (i, (name, constant, value)) in scope.iter_raw().enumerate() {
+            #[cfg(not(feature = "no_closure"))]
+            let value_is_shared = if value.is_shared() { " (shared)" } else { "" };
+            #[cfg(feature = "no_closure")]
+            let value_is_shared = "";
+
+            println!(
+                "[{}] {}{}{} = {:?}",
+                i + 1,
+                if constant { "const " } else { "" },
+                name,
+                value_is_shared,
+                *value.read_lock::<Dynamic>().unwrap(),
+            )
+        }
+        println!();
+    }
+
     println!("Events Handler Example - JS Style");
     println!("==================================");
 
@@ -158,8 +160,3 @@ pub fn main() {
 
     println!("Bye!");
 }
-
-#[cfg(any(feature = "no_function", feature = "no_object"))]
-pub fn main() {
-    panic!("This example does not run under 'no_function' or 'no_object'.")
-}

examples/event_handler_main/main.rs

@@ -1,38 +1,43 @@
 //! Implementation of the Event Handler With State Pattern - Main Style
-use rhai::{Dynamic, Engine, Scope, AST};
 
-use std::io::{stdin, stdout, Write};
-
-const SCRIPT_FILE: &str = "event_handler_main/script.rhai";
-
-#[derive(Debug)]
-struct Handler {
-    pub engine: Engine,
-    pub scope: Scope<'static>,
-    pub ast: AST,
-}
-
-fn print_scope(scope: &Scope) {
-    for (i, (name, constant, value)) in scope.iter_raw().enumerate() {
-        #[cfg(not(feature = "no_closure"))]
-        let value_is_shared = if value.is_shared() { " (shared)" } else { "" };
-        #[cfg(feature = "no_closure")]
-        let value_is_shared = "";
-
-        println!(
-            "[{}] {}{}{} = {:?}",
-            i + 1,
-            if constant { "const " } else { "" },
-            name,
-            value_is_shared,
-            *value.read_lock::<Dynamic>().unwrap(),
-        )
-    }
-    println!();
+#[cfg(feature = "no_function")]
+pub fn main() {
+    panic!("This example does not run under 'no_function'.")
 }
 
 #[cfg(not(feature = "no_function"))]
 pub fn main() {
+    use rhai::{Dynamic, Engine, Scope, AST};
+    use std::io::{stdin, stdout, Write};
+
+    const SCRIPT_FILE: &str = "event_handler_main/script.rhai";
+
+    #[derive(Debug)]
+    struct Handler {
+        pub engine: Engine,
+        pub scope: Scope<'static>,
+        pub ast: AST,
+    }
+
+    fn print_scope(scope: &Scope) {
+        for (i, (name, constant, value)) in scope.iter_raw().enumerate() {
+            #[cfg(not(feature = "no_closure"))]
+            let value_is_shared = if value.is_shared() { " (shared)" } else { "" };
+            #[cfg(feature = "no_closure")]
+            let value_is_shared = "";
+
+            println!(
+                "[{}] {}{}{} = {:?}",
+                i + 1,
+                if constant { "const " } else { "" },
+                name,
+                value_is_shared,
+                *value.read_lock::<Dynamic>().unwrap(),
+            )
+        }
+        println!();
+    }
+
     println!("Events Handler Example - Main Style");
     println!("===================================");
 
@@ -130,8 +135,3 @@ pub fn main() {
 
     println!("Bye!");
 }
-
-#[cfg(feature = "no_function")]
-pub fn main() {
-    panic!("This example does not run under 'no_function'.")
-}

examples/event_handler_map/main.rs

@@ -1,42 +1,44 @@
 //! Implementation of the Event Handler With State Pattern - Map Style
-use rhai::{Dynamic, Engine, Scope, AST};
 
-#[cfg(not(feature = "no_object"))]
-use rhai::Map;
-
-use std::io::{stdin, stdout, Write};
-
-const SCRIPT_FILE: &str = "event_handler_map/script.rhai";
-
-#[derive(Debug)]
-struct Handler {
-    pub engine: Engine,
-    pub scope: Scope<'static>,
-    pub ast: AST,
-}
-
-fn print_scope(scope: &Scope) {
-    for (i, (name, constant, value)) in scope.iter_raw().enumerate() {
-        #[cfg(not(feature = "no_closure"))]
-        let value_is_shared = if value.is_shared() { " (shared)" } else { "" };
-        #[cfg(feature = "no_closure")]
-        let value_is_shared = "";
-
-        println!(
-            "[{}] {}{}{} = {:?}",
-            i + 1,
-            if constant { "const " } else { "" },
-            name,
-            value_is_shared,
-            *value.read_lock::<Dynamic>().unwrap(),
-        )
-    }
-    println!();
+#[cfg(any(feature = "no_function", feature = "no_object"))]
+pub fn main() {
+    panic!("This example does not run under 'no_function' or 'no_object'.")
 }
 
 #[cfg(not(feature = "no_function"))]
 #[cfg(not(feature = "no_object"))]
 pub fn main() {
+    use rhai::{Dynamic, Engine, Map, Scope, AST};
+    use std::io::{stdin, stdout, Write};
+
+    const SCRIPT_FILE: &str = "event_handler_map/script.rhai";
+
+    #[derive(Debug)]
+    struct Handler {
+        pub engine: Engine,
+        pub scope: Scope<'static>,
+        pub ast: AST,
+    }
+
+    fn print_scope(scope: &Scope) {
+        for (i, (name, constant, value)) in scope.iter_raw().enumerate() {
+            #[cfg(not(feature = "no_closure"))]
+            let value_is_shared = if value.is_shared() { " (shared)" } else { "" };
+            #[cfg(feature = "no_closure")]
+            let value_is_shared = "";
+
+            println!(
+                "[{}] {}{}{} = {:?}",
+                i + 1,
+                if constant { "const " } else { "" },
+                name,
+                value_is_shared,
+                *value.read_lock::<Dynamic>().unwrap(),
+            )
+        }
+        println!();
+    }
+
     println!("Events Handler Example - Map Style");
     println!("==================================");
 
@@ -147,8 +149,3 @@ pub fn main() {
 
     println!("Bye!");
 }
-
-#[cfg(any(feature = "no_function", feature = "no_object"))]
-pub fn main() {
-    panic!("This example does not run under 'no_function' or 'no_object'.")
-}

examples/serde.rs

@@ -1,22 +1,12 @@
 //! An example to serialize and deserialize Rust types.
 
-#[cfg(any(not(feature = "serde"), feature = "no_object"))]
+#[cfg(feature = "no_object")]
 fn main() {
-    println!("This example requires the 'serde' feature to run.");
-    println!("Try: cargo run --features serde --example serde");
+    panic!("This example does not run under 'no_object'.")
 }
 
-#[cfg(feature = "serde")]
 #[cfg(not(feature = "no_object"))]
 fn main() {
-    example::ser();
-    println!();
-    example::de();
-}
-
-#[cfg(feature = "serde")]
-#[cfg(not(feature = "no_object"))]
-mod example {
     use rhai::serde::{from_dynamic, to_dynamic};
     use rhai::{Dynamic, Engine, Map};
     use serde::{Deserialize, Serialize};
@@ -60,13 +50,13 @@ mod example {
         let result: Dynamic = engine
             .eval(
                 r#"
-                    #{
-                        a: 42,
-                        b: [ "hello", "world" ],
-                        c: true,
-                        d: #{ x: 123.456, y: 999.0 }
-                    }
-                "#,
+                        #{
+                            a: 42,
+                            b: [ "hello", "world" ],
+                            c: true,
+                            d: #{ x: 123.456, y: 999.0 }
+                        }
+                    "#,
             )
             .unwrap();
 
@@ -89,4 +79,8 @@ mod example {
         );
         println!("Deserialized to struct: {:#?}", x);
     }
+
+    ser();
+    println!();
+    de();
 }