1 files changed, 115 insertions, 0 deletions
diff --git a/vendor/bincode/src/error.rs b/vendor/bincode/src/error.rs
new file mode 100644
index 000000000..420fa7ab7
--- /dev/null
+++ b/vendor/bincode/src/error.rs
@@ -0,0 +1,115 @@
+use std::error::Error as StdError;
+use std::io;
+use std::str::Utf8Error;
+use std::{error, fmt};
+
+use serde;
+
+/// The result of a serialization or deserialization operation.
+pub type Result<T> = ::std::result::Result<T, Error>;
+
+/// An error that can be produced during (de)serializing.
+pub type Error = Box<ErrorKind>;
+
+/// The kind of error that can be produced during a serialization or deserialization.
+#[derive(Debug)]
+pub enum ErrorKind {
+    /// If the error stems from the reader/writer that is being used
+    /// during (de)serialization, that error will be stored and returned here.
+    Io(io::Error),
+    /// Returned if the deserializer attempts to deserialize a string that is not valid utf8
+    InvalidUtf8Encoding(Utf8Error),
+    /// Returned if the deserializer attempts to deserialize a bool that was
+    /// not encoded as either a 1 or a 0
+    InvalidBoolEncoding(u8),
+    /// Returned if the deserializer attempts to deserialize a char that is not in the correct format.
+    InvalidCharEncoding,
+    /// Returned if the deserializer attempts to deserialize the tag of an enum that is
+    /// not in the expected ranges
+    InvalidTagEncoding(usize),
+    /// Serde has a deserialize_any method that lets the format hint to the
+    /// object which route to take in deserializing.
+    DeserializeAnyNotSupported,
+    /// If (de)serializing a message takes more than the provided size limit, this
+    /// error is returned.
+    SizeLimit,
+    /// Bincode can not encode sequences of unknown length (like iterators).
+    SequenceMustHaveLength,
+    /// A custom error message from Serde.
+    Custom(String),
+}
+
+impl StdError for ErrorKind {
+    fn description(&self) -> &str {
+        match *self {
+            ErrorKind::Io(ref err) => error::Error::description(err),
+            ErrorKind::InvalidUtf8Encoding(_) => "string is not valid utf8",
+            ErrorKind::InvalidBoolEncoding(_) => "invalid u8 while decoding bool",
+            ErrorKind::InvalidCharEncoding => "char is not valid",
+            ErrorKind::InvalidTagEncoding(_) => "tag for enum is not valid",
+            ErrorKind::SequenceMustHaveLength => {
+                "Bincode can only encode sequences and maps that have a knowable size ahead of time"
+            }
+            ErrorKind::DeserializeAnyNotSupported => {
+                "Bincode doesn't support serde::Deserializer::deserialize_any"
+            }
+            ErrorKind::SizeLimit => "the size limit has been reached",
+            ErrorKind::Custom(ref msg) => msg,
+        }
+    }
+
+    fn cause(&self) -> Option<&error::Error> {
+        match *self {
+            ErrorKind::Io(ref err) => Some(err),
+            ErrorKind::InvalidUtf8Encoding(_) => None,
+            ErrorKind::InvalidBoolEncoding(_) => None,
+            ErrorKind::InvalidCharEncoding => None,
+            ErrorKind::InvalidTagEncoding(_) => None,
+            ErrorKind::SequenceMustHaveLength => None,
+            ErrorKind::DeserializeAnyNotSupported => None,
+            ErrorKind::SizeLimit => None,
+            ErrorKind::Custom(_) => None,
+        }
+    }
+}
+
+impl From<io::Error> for Error {
+    fn from(err: io::Error) -> Error {
+        ErrorKind::Io(err).into()
+    }
+}
+
+impl fmt::Display for ErrorKind {
+    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+        match *self {
+            ErrorKind::Io(ref ioerr) => write!(fmt, "io error: {}", ioerr),
+            ErrorKind::InvalidUtf8Encoding(ref e) => write!(fmt, "{}: {}", self.description(), e),
+            ErrorKind::InvalidBoolEncoding(b) => {
+                write!(fmt, "{}, expected 0 or 1, found {}", self.description(), b)
+            }
+            ErrorKind::InvalidCharEncoding => write!(fmt, "{}", self.description()),
+            ErrorKind::InvalidTagEncoding(tag) => {
+                write!(fmt, "{}, found {}", self.description(), tag)
+            }
+            ErrorKind::SequenceMustHaveLength => write!(fmt, "{}", self.description()),
+            ErrorKind::SizeLimit => write!(fmt, "{}", self.description()),
+            ErrorKind::DeserializeAnyNotSupported => write!(
+                fmt,
+                "Bincode does not support the serde::Deserializer::deserialize_any method"
+            ),
+            ErrorKind::Custom(ref s) => s.fmt(fmt),
+        }
+    }
+}
+
+impl serde::de::Error for Error {
+    fn custom<T: fmt::Display>(desc: T) -> Error {
+        ErrorKind::Custom(desc.to_string()).into()
+    }
+}
+
+impl serde::ser::Error for Error {
+    fn custom<T: fmt::Display>(msg: T) -> Self {
+        ErrorKind::Custom(msg.to_string()).into()
+    }
+}