Switch `Arc` to `Rc` to appease Clippy.

.github/workflows/test.yml

@@ -5,6 +5,17 @@ on:
   pull_request:
 
 jobs:
+  check_formatting:
+    name: Check Formatting
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: |
+          rustup toolchain install stable
+          cargo fmt --all --check
+          cd examples/web
+          cargo fmt --all --check
+
   check:
     name: Check
     strategy:
@@ -17,8 +28,7 @@ jobs:
         if: ${{ runner.os == 'Linux' }}
       - run: |
           rustup toolchain install stable
-          cargo fmt --check
-          cargo clippy
+          cargo clippy --all-targets
 
   check_web:
     name: Check Web
@@ -28,8 +38,7 @@ jobs:
       - run: |
           rustup target add wasm32-unknown-unknown
           rustup toolchain install stable
-          cargo fmt --all --check
-          cargo clippy --target wasm32-unknown-unknown
+          cargo clippy --all-targets --target wasm32-unknown-unknown
 
   check_android:
     name: Check Android
@@ -37,10 +46,9 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - run: |
+          rustup target add aarch64-linux-android
           rustup toolchain install stable
-          rustup target add aarch64-linux-android armv7-linux-androideabi i686-linux-android x86_64-linux-android
-          cargo install -f xbuild
-          cargo build --target aarch64-linux-android
+          cargo clippy --all-targets --target aarch64-linux-android
 
   check_web_example:
     name: Check Web Example

src/lib.rs

@@ -14,9 +14,10 @@ use std::collections::HashMap;
 #[cfg(target_os = "macos")]
 use std::ffi::CStr;
 use std::fmt;
+use std::rc::Rc;
 #[cfg(windows)]
 use std::string::FromUtf16Error;
-use std::sync::{Arc, Mutex};
+use std::sync::Mutex;
 use std::{boxed::Box, sync::RwLock};
 
 #[cfg(any(target_os = "macos", target_os = "ios"))]
@@ -258,7 +259,7 @@ lazy_static! {
 }
 
 #[derive(Clone)]
-pub struct Tts(Arc<RwLock<Box<dyn Backend>>>);
+pub struct Tts(Rc<RwLock<Box<dyn Backend>>>);
 
 unsafe impl Send for Tts {}
 
@@ -271,18 +272,18 @@ impl Tts {
             #[cfg(target_os = "linux")]
             Backends::SpeechDispatcher => {
                 let tts = backends::SpeechDispatcher::new()?;
-                Ok(Tts(Arc::new(RwLock::new(Box::new(tts)))))
+                Ok(Tts(Rc::new(RwLock::new(Box::new(tts)))))
             }
             #[cfg(target_arch = "wasm32")]
             Backends::Web => {
                 let tts = backends::Web::new()?;
-                Ok(Tts(Arc::new(RwLock::new(Box::new(tts)))))
+                Ok(Tts(Rc::new(RwLock::new(Box::new(tts)))))
             }
             #[cfg(all(windows, feature = "tolk"))]
             Backends::Tolk => {
                 let tts = backends::Tolk::new();
                 if let Some(tts) = tts {
-                    Ok(Tts(Arc::new(RwLock::new(Box::new(tts)))))
+                    Ok(Tts(Rc::new(RwLock::new(Box::new(tts)))))
                 } else {
                     Err(Error::NoneError)
                 }
@@ -290,20 +291,20 @@ impl Tts {
             #[cfg(windows)]
             Backends::WinRt => {
                 let tts = backends::WinRt::new()?;
-                Ok(Tts(Arc::new(RwLock::new(Box::new(tts)))))
+                Ok(Tts(Rc::new(RwLock::new(Box::new(tts)))))
             }
             #[cfg(target_os = "macos")]
-            Backends::AppKit => Ok(Tts(Arc::new(RwLock::new(Box::new(
-                backends::AppKit::new()?
-            ))))),
+            Backends::AppKit => Ok(Tts(Rc::new(RwLock::new(
+                Box::new(backends::AppKit::new()?),
+            )))),
             #[cfg(any(target_os = "macos", target_os = "ios"))]
-            Backends::AvFoundation => Ok(Tts(Arc::new(RwLock::new(Box::new(
+            Backends::AvFoundation => Ok(Tts(Rc::new(RwLock::new(Box::new(
                 backends::AvFoundation::new()?,
             ))))),
             #[cfg(target_os = "android")]
             Backends::Android => {
                 let tts = backends::Android::new()?;
-                Ok(Tts(Arc::new(RwLock::new(Box::new(tts)))))
+                Ok(Tts(Rc::new(RwLock::new(Box::new(tts)))))
             }
         };
         if let Ok(backend) = backend {
@@ -640,7 +641,7 @@ impl Tts {
 
 impl Drop for Tts {
     fn drop(&mut self) {
-        if Arc::strong_count(&self.0) <= 1 {
+        if Rc::strong_count(&self.0) <= 1 {
             if let Some(id) = self.0.read().unwrap().id() {
                 let mut callbacks = CALLBACKS.lock().unwrap();
                 callbacks.remove(&id);