feat: optional read supported

gnolizuh · Mar 19, 2024 · de8690d · de8690d
1 parent b0abbbf
commit de8690d
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/decode.go b/decode.go
@@ -1383,6 +1383,11 @@ func (d *decodeState) unmarshal(v any, opts decOpts) error {
 		return &InvalidUnmarshalError{reflect.TypeOf(v)}
 	}
 
+	// Return io.EOF to upper layer if reader has zero length.
+	if d.reader.Len() == 0 {
+		return io.EOF
+	}
+
 	// We decode rv not rv.Elem because the Unmarshaler interface
 	// test must be applied at the top level of the value.
 	err := d.value(rv, opts)