Merge pull request #209 from schungx/master

General fixups for version 0.18.0

.github/workflows/build.yml

@@ -19,7 +19,6 @@ jobs:
         flags:
           - ""
           - "--features serde"
-          - "--features plugins"
           - "--features unchecked"
           - "--features sync"
           - "--features no_optimize"

RELEASES.md

@@ -36,6 +36,7 @@ Breaking changes
 * `PackagesCollection::get_fn`, `PackagesCollection::contains_fn`, `Module::get_fn` and `Module::contains_fn` now take an additional `public_only` parameter indicating whether only public functions are accepted.
 * The iterator returned by `Scope::iter` now contains a clone of the `Dynamic` value (unshared).
 * `Engine::load_package` takes any type that is `Into<PackageLibrary>`.
+* Error in `Engine::register_custom_syntax` is no longer `Box`-ed.
 
 Housekeeping
 ------------

src/syntax.rs

@@ -100,7 +100,7 @@ impl Engine {
             ) -> Result<Dynamic, Box<EvalAltResult>>
             + SendSync
             + 'static,
-    ) -> Result<&mut Self, Box<ParseError>> {
+    ) -> Result<&mut Self, ParseError> {
         let mut segments: StaticVec<_> = Default::default();
 
         for s in keywords {

tests/syntax.rs

@@ -1,6 +1,4 @@
-use rhai::{
-    Engine, EvalAltResult, EvalContext, Expression, ParseError, ParseErrorType, Scope, INT,
-};
+use rhai::{Engine, EvalAltResult, EvalContext, Expression, ParseErrorType, Scope, INT};
 
 #[test]
 fn test_custom_syntax() -> Result<(), Box<EvalAltResult>> {
@@ -19,16 +17,12 @@ fn test_custom_syntax() -> Result<(), Box<EvalAltResult>> {
         ParseErrorType::Reserved(err) if err == "while"
     ));
 
-    engine
-        .register_custom_syntax(
+    engine.register_custom_syntax(
         &[
             "do", "|", "$ident$", "|", "->", "$block$", "while", "$expr$",
         ],
         1,
-            |engine: &Engine,
-             context: &mut EvalContext,
-             scope: &mut Scope,
-             inputs: &[Expression]| {
+        |engine: &Engine, context: &mut EvalContext, scope: &mut Scope, inputs: &[Expression]| {
             let var_name = inputs[0].get_variable_name().unwrap().to_string();
             let stmt = inputs.get(1).unwrap();
             let expr = inputs.get(2).unwrap();
@@ -42,10 +36,7 @@ fn test_custom_syntax() -> Result<(), Box<EvalAltResult>> {
                     .eval_expression_tree(context, scope, expr)?
                     .as_bool()
                     .map_err(|_| {
-                            EvalAltResult::ErrorBooleanArgMismatch(
-                                "do-while".into(),
-                                expr.position(),
-                            )
+                        EvalAltResult::ErrorBooleanArgMismatch("do-while".into(), expr.position())
                     })?
                 {
                     break;
@@ -54,8 +45,7 @@ fn test_custom_syntax() -> Result<(), Box<EvalAltResult>> {
 
             Ok(().into())
         },
-        )
-        .unwrap();
+    )?;
 
     // 'while' is now a custom keyword so this it can no longer be a variable
     engine.consume("let while = 0").expect_err("should error");
@@ -71,10 +61,13 @@ fn test_custom_syntax() -> Result<(), Box<EvalAltResult>> {
     );
 
     // The first symbol must be an identifier
-    assert!(matches!(
-        *engine.register_custom_syntax(&["!"], 0, |_, _, _, _| Ok(().into())).expect_err("should error"),
-        ParseError(err, _) if *err == ParseErrorType::BadInput("Improper symbol for custom syntax: '!'".to_string())
-    ));
+    assert_eq!(
+        *engine
+            .register_custom_syntax(&["!"], 0, |_, _, _, _| Ok(().into()))
+            .expect_err("should error")
+            .0,
+        ParseErrorType::BadInput("Improper symbol for custom syntax: '!'".to_string())
+    );
 
     Ok(())
 }