Common traits for Features

Cargo.toml

@@ -16,6 +16,7 @@ dyn-clonable = "0.9"
 lazy_static = "1"
 log = "0.4"
 thiserror = "1"
+serde = { version = "1.0", optional = true, features = ["derive"] }
 
 [dev-dependencies]
 env_logger = "0.9"

src/lib.rs

@@ -16,6 +16,7 @@ use std::boxed::Box;
 use std::collections::HashMap;
 #[cfg(target_os = "macos")]
 use std::ffi::CStr;
+use std::fmt;
 use std::sync::Mutex;
 
 #[cfg(any(target_os = "macos", target_os = "ios"))]
@@ -84,13 +85,15 @@ unsafe impl Send for UtteranceId {}
 
 unsafe impl Sync for UtteranceId {}
 
+#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq, PartialOrd, Ord)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub struct Features {
-    pub stop: bool,
-    pub rate: bool,
-    pub pitch: bool,
-    pub volume: bool,
     pub is_speaking: bool,
+    pub pitch: bool,
+    pub rate: bool,
+    pub stop: bool,
     pub utterance_callbacks: bool,
+    pub volume: bool,
 }
 
 impl Default for Features {
@@ -106,6 +109,18 @@ impl Default for Features {
     }
 }
 
+impl fmt::Display for Features {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
+        writeln!(f, "{:#?}", self)
+    }
+}
+
+impl Features {
+    pub fn new() -> Self {
+        Self::default()
+    }
+}
+
 #[derive(Debug, Error)]
 pub enum Error {
     #[error("IO error: {0}")]