wip: remove error fns from de

serde2/src/json/de.rs

@@ -387,14 +387,6 @@ impl<Iter: Iterator<u8>> Deserializer<Error> for Parser<Iter> {
     >(&mut self, visitor: &mut V) -> Result<R, Error> {
         self.parse_value(visitor)
     }
-
-    fn syntax_error(&mut self) -> Error {
-        Error::SyntaxError(ErrorCode::ExpectedSomeValue, self.line, self.col)
-    }
-
-    fn end_of_stream_error(&mut self) -> Error {
-        Error::SyntaxError(ErrorCode::EOFWhileParsingValue, self.line, self.col)
-    }
 }
 
 struct SeqVisitor {

serde2/src/json/error.rs

@@ -2,6 +2,8 @@ use std::error;
 use std::fmt;
 use std::io;
 
+use de;
+
 /// The errors that can arise while parsing a JSON stream.
 #[deriving(Clone, PartialEq)]
 pub enum ErrorCode {
@@ -124,3 +126,13 @@ impl error::FromError<io::IoError> for Error {
         Error::IoError(error)
     }
 }
+
+impl de::Error for Error {
+    fn syntax_error() -> Error {
+        Error::SyntaxError(ErrorCode::ExpectedSomeValue, 0, 0)
+    }
+
+    fn end_of_stream_error() -> Error {
+        Error::SyntaxError(ErrorCode::EOFWhileParsingValue, 0, 0)
+    }
+}