Fix SystemReset deserialization

Author: AlexCharlton

src/context.rs

@@ -12,9 +12,10 @@ use super::{MidiMsg, TimeCode};
 /// messages.
 #[derive(Debug, Clone, PartialEq, Default)]
 pub struct ReceiverContext {
-    pub previous_channel_message: Option<MidiMsg>,
-    pub time_code: TimeCode,
-    pub is_smf_sysex: bool,
+    pub(crate) previous_channel_message: Option<MidiMsg>,
+    pub(crate) time_code: TimeCode,
+    pub(crate) is_smf_sysex: bool,
+    pub(crate) parsing_smf: bool,
     /// If true, CC messages will be treated as complex CC messages, with their semantics taken from the Midi spec. Otherwise, they will be treated as simple CC messages - i.e. [`ControlChange::CC`](crate::ControlChange::CC).
     pub complex_cc: bool,
 }
@@ -29,4 +30,9 @@ impl ReceiverContext {
         self.complex_cc = true;
         self
     }
+
+    pub(crate) fn parsing_smf(mut self) -> Self {
+        self.parsing_smf = true;
+        self
+    }
 }

src/file.rs

@@ -414,7 +414,7 @@ impl Track {
         ctx.add_track(Self::Midi(vec![]));
         ctx.advance(8);
         ctx.track_length(len);
-        let reciever_ctx = &mut ReceiverContext::default();
+        let reciever_ctx = &mut ReceiverContext::default().parsing_smf();
 
         let mut i = 0;
         let mut last_beat_or_frame = 0.0;

src/message.rs

@@ -166,7 +166,7 @@ impl MidiMsg {
                         }
                         #[cfg(not(feature = "sysex"))]
                         return Err(ParseError::SystemExclusiveDisabled);
-                    } else if b & 0b00001111 == 0xF {
+                    } else if b & 0b00001111 == 0xF && ctx.parsing_smf {
                         #[cfg(feature = "file")]
                         {
                             let (msg, len) = Meta::from_midi(m)?;

src/system_real_time.rs

@@ -74,4 +74,16 @@ mod tests {
             &mut ctx,
         );
     }
+
+    #[test]
+    fn serde_system_reset() {
+        let system_reset = MidiMsg::SystemRealTime {
+            msg: SystemRealTimeMsg::SystemReset,
+        };
+        println!("{:?}", system_reset.to_midi());
+        assert_eq!(
+            MidiMsg::from_midi_with_context(&system_reset.to_midi(), &mut ReceiverContext::new()),
+            Ok((system_reset, 1)),
+        );
+    }
 }