Update for Rustc 1.0.0 beta

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "cpal"
-version = "0.0.18"
+version = "0.0.19"
 authors = ["Pierre Krieger <pierre.krieger1708@gmail.com>"]
 description = "Cross-platform audio playing library in pure Rust."
 repository = "https://github.com/tomaka/cpal"

alsa-sys/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "alsa-sys"
-version = "0.0.6"
+version = "0.0.7"
 authors = ["Pierre Krieger <pierre.krieger1708@gmail.com>"]
 build = "build.rs"
 description = "Bindings for the ALSA project (Advanced Linux Sound Architecture)"

alsa-sys/src/lib.rs

@@ -1,5 +1,3 @@
-#![crate_type = "lib"]
-#![feature(libc)]
 #![allow(missing_copy_implementations)]
 #![allow(non_camel_case_types)]
 #![allow(non_snake_case)]

examples/beep.rs

@@ -1,20 +1,28 @@
-#![feature(core)]
-
 extern crate cpal;
 
+// TODO: manual replacement for unstable `std::iter::iterate`
+struct Iter {
+    value: f32,
+}
+
+impl Iterator for Iter {
+    type Item = f32;
+
+    fn next(&mut self) -> Option<f32> {
+        self.value += 0.03;
+        Some(self.value)
+    }
+}
+
 fn main() {
     let mut channel = cpal::Voice::new();
 
     // producing a sinusoid
-    let mut data_source =
+    let mut data_source = Iter { value: 0.0 }
-        std::iter::iterate(0.0f32, |f| f + 0.03)
             .map(|angle| {
-                use std::num::Float;
-                use std::num::Int;
-
                 let angle = angle.sin();
 
-                let max: u16 = Int::max_value();
+                let max: u16 = std::u16::MAX;
                 let value = (max as f32 / 2.0) + (angle * (max as f32 / 2.0));
                 value as u16
             });

src/alsa/mod.rs

@@ -16,7 +16,7 @@ pub struct Buffer<'a, T> {
 impl Voice {
     pub fn new() -> Voice {
         unsafe {
-            let name = ffi::CString::from_slice(b"default");
+            let name = ffi::CString::new(b"default".to_vec()).unwrap();
 
             let mut playback_handle = mem::uninitialized();
             check_errors(alsa::snd_pcm_open(&mut playback_handle, name.as_ptr(), alsa::SND_PCM_STREAM_PLAYBACK, alsa::SND_PCM_NONBLOCK)).unwrap();
@@ -110,8 +110,9 @@ fn check_errors(err: libc::c_int) -> Result<(), String> {
 
     if err < 0 {
         unsafe {
-            let s = String::from_utf8(ffi::c_str_to_bytes(&alsa::snd_strerror(err)).to_vec());
+            let s = ffi::CStr::from_ptr(alsa::snd_strerror(err)).to_bytes().to_vec();
-            return Err(s.unwrap());
+            let s = String::from_utf8(s).unwrap();
+            return Err(s);
         }
     }
 

src/conversions.rs

@@ -97,19 +97,19 @@ mod test {
     #[test]
     fn remove_channels() {
         let result = convert_channels(&[1u16, 2, 3, 1, 2, 3], 3, 2);
-        assert_eq!(result.as_slice(), [1, 2, 1, 2]);
+        assert_eq!(result, [1, 2, 1, 2]);
 
         let result = convert_channels(&[1u16, 2, 3, 4, 1, 2, 3, 4], 4, 1);
-        assert_eq!(result.as_slice(), [1, 1]);
+        assert_eq!(result, [1, 1]);
     }
 
     #[test]
     fn add_channels() {
         let result = convert_channels(&[1u16, 2, 1, 2], 2, 3);
-        assert_eq!(result.as_slice(), [1, 2, 1, 1, 2, 1]);
+        assert_eq!(result, [1, 2, 1, 1, 2, 1]);
 
         let result = convert_channels(&[1u16, 2, 1, 2], 2, 4);
-        assert_eq!(result.as_slice(), [1, 2, 1, 2, 1, 2, 1, 2]);
+        assert_eq!(result, [1, 2, 1, 2, 1, 2, 1, 2]);
     }
 
     #[test]
@@ -123,7 +123,7 @@ mod test {
         let result = convert_samples_rate(&[1u16, 16, 2, 17, 3, 18, 4, 19],
                                           ::SamplesRate(44100), ::SamplesRate(22050), 2);
 
-        assert_eq!(result.as_slice(), [1, 16, 3, 18]);
+        assert_eq!(result, [1, 16, 3, 18]);
     }
 
     #[test]
@@ -131,6 +131,6 @@ mod test {
         let result = convert_samples_rate(&[2u16, 16, 4, 18, 6, 20, 8, 22],
                                           ::SamplesRate(22050), ::SamplesRate(44100), 2);
 
-        assert_eq!(result.as_slice(), [2, 16, 3, 17, 4, 18, 5, 19, 6, 20, 7, 21, 8, 22]);
+        assert_eq!(result, [2, 16, 3, 17, 4, 18, 5, 19, 6, 20, 7, 21, 8, 22]);
     }
 }

src/lib.rs

@@ -47,8 +47,6 @@ a conversion on your data.
 If you have the possibility, you should try to match the format of the voice.
 
 */
-#![feature(box_syntax, core, unsafe_destructor, thread_sleep, std_misc)]
-
 pub use samples_formats::{SampleFormat, Sample};
 
 use std::ops::{Deref, DerefMut};
@@ -261,7 +259,6 @@ impl<'a, T> DerefMut for Buffer<'a, T> where T: Sample {
     }
 }
 
-#[unsafe_destructor]
 impl<'a, T> Drop for Buffer<'a, T> where T: Sample {
     fn drop(&mut self) {
         if let Some(conversion) = self.conversion.take() {

src/wasapi/mod.rs

@@ -51,8 +51,7 @@ impl Voice {
                 // 
                 let frames_available = {
                     let mut padding = mem::uninitialized();
-                    let f = self.audio_client.as_mut().unwrap().lpVtbl
+                    let f = (&*(&mut *self.audio_client).lpVtbl).GetCurrentPadding;
-                                .as_ref().unwrap().GetCurrentPadding;
                     let hresult = f(self.audio_client, &mut padding);
                     check_result(hresult).unwrap();
                     self.max_frames_in_buffer - padding
@@ -60,7 +59,7 @@ impl Voice {
 
                 if frames_available == 0 {
                     // TODO: 
-                    ::std::thread::sleep(::std::time::duration::Duration::milliseconds(1));
+                    ::std::thread::sleep_ms(1);
                     continue;
                 }
 
@@ -72,7 +71,7 @@ impl Voice {
                 // loading buffer
                 let (buffer_data, buffer_len) = {
                     let mut buffer: *mut winapi::BYTE = mem::uninitialized();
-                    let f = self.render_client.as_mut().unwrap().lpVtbl.as_ref().unwrap().GetBuffer;
+                    let f = (&*(&mut *self.render_client).lpVtbl).GetBuffer;
                     let hresult = f(self.render_client, frames_available,
                                     &mut buffer as *mut *mut libc::c_uchar);
                     check_result(hresult).unwrap();
@@ -99,7 +98,7 @@ impl Voice {
     pub fn play(&mut self) {
         if !self.playing {
             unsafe {
-                let f = self.audio_client.as_mut().unwrap().lpVtbl.as_ref().unwrap().Start;
+                let f = (&*(&mut *self.audio_client).lpVtbl).Start;
                 let hresult = f(self.audio_client);
                 check_result(hresult).unwrap();
             }
@@ -111,7 +110,7 @@ impl Voice {
     pub fn pause(&mut self) {
         if self.playing {
             unsafe {
-                let f = self.audio_client.as_mut().unwrap().lpVtbl.as_ref().unwrap().Stop;
+                let f = (&*(&mut *self.audio_client).lpVtbl).Stop;
                 let hresult = f(self.audio_client);
                 check_result(hresult).unwrap();
             }
@@ -128,12 +127,12 @@ impl Drop for Voice {
     fn drop(&mut self) {
         unsafe {
             {
-                let f = self.render_client.as_mut().unwrap().lpVtbl.as_ref().unwrap().Release;
+                let f = (&*(&mut *self.render_client).lpVtbl).Release;
                 f(self.render_client);
             }
 
             {
-                let f = self.audio_client.as_mut().unwrap().lpVtbl.as_ref().unwrap().Release;
+                let f = (&*(&mut *self.audio_client).lpVtbl).Release;
                 f(self.audio_client);
             }
         }
@@ -150,7 +149,7 @@ impl<'a, T> Buffer<'a, T> {
     pub fn finish(self) {
         // releasing buffer
         unsafe {
-            let f = self.render_client.as_mut().unwrap().lpVtbl.as_ref().unwrap().ReleaseBuffer;
+            let f = (&*(&mut *self.render_client).lpVtbl).ReleaseBuffer;
             let hresult = f(self.render_client, self.frames as u32, 0);
             check_result(hresult).unwrap();
         };
@@ -172,27 +171,27 @@ fn init() -> Result<Voice, String> {
                                                    mem::transmute(&mut enumerator));
 
             try!(check_result(hresult));
-            enumerator.as_mut().unwrap()
+            &mut *enumerator
         };
 
         // getting the default end-point
         let device = {
             let mut device: *mut winapi::IMMDevice = mem::uninitialized();
-            let f = enumerator.lpVtbl.as_ref().unwrap().GetDefaultAudioEndpoint;
+            let f = (&*(&mut *enumerator).lpVtbl).GetDefaultAudioEndpoint;
             let hresult = f(enumerator, winapi::EDataFlow::eRender, winapi::ERole::eConsole,
                             mem::transmute(&mut device));
             try!(check_result(hresult));
-            device.as_mut().unwrap()
+            &mut *device
         };
 
         // activating in order to get a `IAudioClient`
-        let audio_client = {
+        let audio_client: &mut winapi::IAudioClient = {
             let mut audio_client: *mut winapi::IAudioClient = mem::uninitialized();
-            let f = device.lpVtbl.as_ref().unwrap().Activate;
+            let f = (&*(&mut *device).lpVtbl).Activate;
             let hresult = f(device, &winapi::IID_IAudioClient, winapi::CLSCTX_ALL,
                             ptr::null_mut(), mem::transmute(&mut audio_client));
             try!(check_result(hresult));
-            audio_client.as_mut().unwrap()
+            &mut *audio_client
         };
 
         // computing the format and initializing the device
@@ -208,19 +207,20 @@ fn init() -> Result<Voice, String> {
             };
 
             let mut format_ptr: *mut winapi::WAVEFORMATEX = mem::uninitialized();
-            let f = audio_client.lpVtbl.as_ref().unwrap().IsFormatSupported;
+            let f = (&*(&mut *audio_client).lpVtbl).IsFormatSupported;
             let hresult = f(audio_client, winapi::AUDCLNT_SHAREMODE::AUDCLNT_SHAREMODE_SHARED,
                             &format_attempt, &mut format_ptr);
             try!(check_result(hresult));
 
-            let format = match format_ptr.as_ref() {
+            let format = if format_ptr.is_null() {
-                Some(f) => f,
+                &format_attempt
-                None => &format_attempt,
+            } else {
+                &*format_ptr
             };
 
             let format_copy = ptr::read(format);
 
-            let f = audio_client.lpVtbl.as_ref().unwrap().Initialize;
+            let f = (&*(&mut *audio_client).lpVtbl).Initialize;
             let hresult = f(audio_client, winapi::AUDCLNT_SHAREMODE::AUDCLNT_SHAREMODE_SHARED,
                             0, 10000000, 0, format, ptr::null());
 
@@ -236,7 +236,7 @@ fn init() -> Result<Voice, String> {
         // 
         let max_frames_in_buffer = {
             let mut max_frames_in_buffer = mem::uninitialized();
-            let f = audio_client.lpVtbl.as_ref().unwrap().GetBufferSize;
+            let f = (&*(&mut *audio_client).lpVtbl).GetBufferSize;
             let hresult = f(audio_client, &mut max_frames_in_buffer);
             try!(check_result(hresult));
             max_frames_in_buffer
@@ -245,11 +245,11 @@ fn init() -> Result<Voice, String> {
         // 
         let render_client = {
             let mut render_client: *mut winapi::IAudioRenderClient = mem::uninitialized();
-            let f = audio_client.lpVtbl.as_ref().unwrap().GetService;
+            let f = (&*(&mut *audio_client).lpVtbl).GetService;
             let hresult = f(audio_client, &winapi::IID_IAudioRenderClient,
                             mem::transmute(&mut render_client));
             try!(check_result(hresult));
-            render_client.as_mut().unwrap()
+            &mut *render_client
         };
 
         Ok(Voice {