compat/json: Correctly handle syntax-error-in-decode

1 files changed, 2 insertions, 0 deletions

diff --git a/decode.go b/decode.go
index 491971a..a136668 100644
--- a/decode.go
+++ b/decode.go
@@ -53,6 +53,8 @@ import (
 // or another is encountered; if it does not, then the parent Decode
 // call will return a *DecodeTypeError.
 //
+// DecodeJSON should return nil (not io.EOF) on success.
+//
 // Implementor's note: "withLimitingScanner" is the thing to search
 // for in decode.go if you want to read up on that io.RuneScanner.
 type Decodable interface {