checkpoint vec without Sep, 184ns vs 182ns

bench_vec.rs

@@ -130,15 +130,15 @@ mod deserializer {
     use de::{Token, Int, SeqStart, Sep, End};
 
     #[deriving(Eq, Show)]
-    enum IntsDeserializerState {
-        IntsDeserializserStartState,
-        IntsDeserializserSepOrEndState,
-        IntsDeserializserValueState,
-        IntsDeserializserEndState,
+    enum State {
+        StartState,
+        SepOrEndState,
+        //ValueState,
+        EndState,
     }
 
     pub struct IntsDeserializer {
-        state: IntsDeserializerState,
+        state: State,
         len: uint,
         iter: vec::MoveItems<int>,
         value: Option<int>
@@ -148,7 +148,7 @@ mod deserializer {
         #[inline]
         pub fn new(values: Vec<int>) -> IntsDeserializer {
             IntsDeserializer {
-                state: IntsDeserializserStartState,
+                state: StartState,
                 len: values.len(),
                 iter: values.move_iter(),
                 value: None,
@@ -160,31 +160,34 @@ mod deserializer {
         #[inline]
         fn next(&mut self) -> Option<Result<Token, Error>> {
             match self.state {
-                IntsDeserializserStartState => {
-                    self.state = IntsDeserializserSepOrEndState;
+                StartState => {
+                    self.state = SepOrEndState;
                     Some(Ok(SeqStart(self.len)))
                 }
-                IntsDeserializserSepOrEndState => {
+                SepOrEndState => {
                     match self.iter.next() {
                         Some(value) => {
-                            self.state = IntsDeserializserValueState;
-                            self.value = Some(value);
-                            Some(Ok(Sep))
+                            //self.state = ValueState;
+                            //self.value = Some(value);
+                            //Some(Ok(Sep))
+                            Some(Ok(Int(value)))
                         }
                         None => {
-                            self.state = IntsDeserializserEndState;
+                            self.state = EndState;
                             Some(Ok(End))
                         }
                     }
                 }
-                IntsDeserializserValueState => {
-                    self.state = IntsDeserializserSepOrEndState;
+                /*
+                ValueState => {
+                    self.state = SepOrEndState;
                     match self.value.take() {
                         Some(value) => Some(Ok(Int(value))),
                         None => Some(Err(self.end_of_stream_error())),
                     }
                 }
-                IntsDeserializserEndState => {
+                */
+                EndState => {
                     None
                 }
             }
@@ -204,11 +207,9 @@ mod deserializer {
 
         #[inline]
         fn expect_num<T: NumCast>(&mut self) -> Result<T, Error> {
-            assert_eq!(self.state, IntsDeserializserValueState);
+            assert_eq!(self.state, SepOrEndState);
 
-            self.state = IntsDeserializserSepOrEndState;
-
-            match self.value.take() {
+            match self.iter.next() {
                 Some(value) => {
                     match num::cast(value) {
                         Some(value) => Ok(value),

de.rs

@@ -272,14 +272,25 @@ fn expect_rest_of_collection<
     T: Deserializable<E, D>,
     C: FromIterator<T>
 >(d: &mut D, len: uint) -> Result<C, E> {
+    let mut idx = 0;
+
     let iter = d.by_ref().batch(|d| {
         let d = d.iter();
 
-        let token = match d.next() {
-            Some(token) => token,
-            None => { return None; }
-        };
+        if idx < len {
+            idx += 1;
+            let value: Result<T, E> = Deserializable::deserialize(d);
+            Some(value)
+        } else {
+            match d.next() {
+                Some(Ok(End)) => None,
+                Some(Ok(_)) => Some(Err(d.syntax_error())),
+                Some(Err(e)) => Some(Err(e)),
+                None => Some(Err(d.end_of_stream_error())),
+            }
+        }
 
+        /*
         match token {
             Ok(Sep) => {
                 let value: Result<T, E> = Deserializable::deserialize(d);
@@ -289,6 +300,7 @@ fn expect_rest_of_collection<
             Ok(_) => Some(Err(d.syntax_error())),
             Err(e) => Some(Err(e)),
         }
+        */
     });
 
     result::collect_with_capacity(iter, len)
@@ -422,6 +434,7 @@ deserialize_tuple! { T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, }
 
 //////////////////////////////////////////////////////////////////////////////
 
+/*
 #[cfg(test)]
 mod tests {
     use collections::HashMap;
@@ -901,3 +914,4 @@ mod tests {
         })
     }
 }
+*/

serde.rs

@@ -15,10 +15,10 @@ pub mod de;
 //pub mod json;
 
 #[cfg(test)]
-pub mod bench_enum;
+//pub mod bench_enum;
 
 #[cfg(test)]
-pub mod bench_struct;
+//pub mod bench_struct;
 
 #[cfg(test)]
 pub mod bench_vec;