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-rw-r--r--src/decoder/mod.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/decoder/mod.rs b/src/decoder/mod.rs
index a3cc29a..62de223 100644
--- a/src/decoder/mod.rs
+++ b/src/decoder/mod.rs
@@ -35,6 +35,8 @@ pub enum DecodeErrorKind {
ApplicationError(String),
/// A field was expected, but none was found.
ExpectedField(/* type */ Option<&'static str>),
+ /// A field was found, but it was not an expected one.
+ UnknownField,
/// A field was found, but it had the wrong type.
ExpectedType(/* expected */ &'static str, /* found */ &'static str),
/// The nth map key was expected, but none was found.
@@ -149,6 +151,7 @@ impl fmt::Display for DecodeError {
None => write!(f, "expected a value"),
}
}
+ UnknownField => write!(f, "unknown field"),
ExpectedType(expected, found) => {
fn humanize(s: &str) -> String {
if s == "section" {
@@ -194,6 +197,7 @@ impl error::Error for DecodeError {
match self.kind {
ApplicationError(ref s) => &**s,
ExpectedField(..) => "expected a field",
+ UnknownField => "found an unknown field",
ExpectedType(..) => "expected a type",
ExpectedMapKey(..) => "expected a map key",
ExpectedMapElement(..) => "expected a map element",