Change fast_ops to options.

tests/native.rs

@@ -77,19 +77,22 @@ fn test_native_overload() -> Result<(), Box<EvalAltResult>> {
 
     assert_eq!(
         engine.eval::<String>(r#"let x = "hello"; let y = "world"; x + y"#)?,
-        if cfg!(not(feature = "fast_ops")) {
-            "hello***world"
-        } else {
-            "helloworld"
-        }
+        "hello***world"
     );
     assert_eq!(
         engine.eval::<String>(r#"let x = "hello"; let y = (); x + y"#)?,
-        if cfg!(not(feature = "fast_ops")) {
-            "hello Foo!"
-        } else {
-            "hello"
-        }
+        "hello Foo!"
+    );
+
+    engine.set_fast_operators(true);
+
+    assert_eq!(
+        engine.eval::<String>(r#"let x = "hello"; let y = "world"; x + y"#)?,
+        "helloworld"
+    );
+    assert_eq!(
+        engine.eval::<String>(r#"let x = "hello"; let y = (); x + y"#)?,
+        "hello"
     );
 
     Ok(())

tests/optimizer.rs

@@ -49,24 +49,21 @@ fn test_optimizer_run() -> Result<(), Box<EvalAltResult>> {
     run_test(&mut engine)?;
 
     // Override == operator
-    #[cfg(not(feature = "fast_ops"))]
-    {
-        engine.register_fn("==", |_x: INT, _y: INT| false);
+    engine.register_fn("==", |_x: INT, _y: INT| false);
 
-        engine.set_optimization_level(OptimizationLevel::Simple);
+    engine.set_optimization_level(OptimizationLevel::Simple);
 
-        assert_eq!(
-            engine.eval::<INT>("if 1 == 1 || 2 > 3 { 42 } else { 123 }")?,
-            123
-        );
+    assert_eq!(
+        engine.eval::<INT>("if 1 == 1 || 2 > 3 { 42 } else { 123 }")?,
+        123
+    );
 
-        engine.set_optimization_level(OptimizationLevel::Full);
+    engine.set_optimization_level(OptimizationLevel::Full);
 
-        assert_eq!(
-            engine.eval::<INT>("if 1 == 1 || 2 > 3 { 42 } else { 123 }")?,
-            123
-        );
-    }
+    assert_eq!(
+        engine.eval::<INT>("if 1 == 1 || 2 > 3 { 42 } else { 123 }")?,
+        123
+    );
 
     Ok(())
 }

tests/plugins.rs

@@ -128,14 +128,7 @@ fn test_plugins_package() -> Result<(), Box<EvalAltResult>> {
     assert_eq!(engine.eval::<INT>("let a = [1, 2, 3]; test(a, 2)")?, 6);
     assert_eq!(engine.eval::<INT>("let a = [1, 2, 3]; hi(a, 2)")?, 6);
     assert_eq!(engine.eval::<INT>("let a = [1, 2, 3]; test(a, 2)")?, 6);
-    assert_eq!(
-        engine.eval::<INT>("2 + 2")?,
-        if cfg!(not(feature = "fast_ops")) {
-            5
-        } else {
-            4
-        }
-    );
+    assert_eq!(engine.eval::<INT>("2 + 2")?, 5);
     assert_eq!(
         engine.eval::<String>("let a = [1, 2, 3]; greet(test(a, 2))")?,
         "6 kitties"