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| author | Felix Lange <fjl@twurst.com> | 2015-03-18 06:49:49 +0800 |
|---|---|---|
| committer | Felix Lange <fjl@twurst.com> | 2015-03-18 06:49:49 +0800 |
| commit | cb009a5c4da40e1987b9dfcffa4d52bcae41e4e1 (patch) | |
| tree | cc09681b0e4ba1391dfcd27c34f941fc304dedcb | |
| parent | 86661de07746cd4e4ad8d016afee9fa8074aa141 (diff) | |
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rlp: don't panic for nil *big.Int
All other pointer types can handle nil just fine.
| -rw-r--r-- | rlp/encode.go | 7 | ||||
| -rw-r--r-- | rlp/encode_test.go | 1 |
2 files changed, 7 insertions, 1 deletions
diff --git a/rlp/encode.go b/rlp/encode.go index 9d11d66bf..42bbb876c 100644 --- a/rlp/encode.go +++ b/rlp/encode.go @@ -386,7 +386,12 @@ func writeUint(val reflect.Value, w *encbuf) error { } func writeBigIntPtr(val reflect.Value, w *encbuf) error { - return writeBigInt(val.Interface().(*big.Int), w) + ptr := val.Interface().(*big.Int) + if ptr == nil { + w.str = append(w.str, 0x80) + return nil + } + return writeBigInt(ptr, w) } func writeBigIntNoPtr(val reflect.Value, w *encbuf) error { diff --git a/rlp/encode_test.go b/rlp/encode_test.go index c283fbd57..852cb6f59 100644 --- a/rlp/encode_test.go +++ b/rlp/encode_test.go @@ -196,6 +196,7 @@ var encTests = []encTest{ {val: (*uint)(nil), output: "80"}, {val: (*string)(nil), output: "80"}, {val: (*[]byte)(nil), output: "80"}, + {val: (*big.Int)(nil), output: "80"}, {val: (*[]string)(nil), output: "C0"}, {val: (*[]interface{})(nil), output: "C0"}, {val: (*[]struct{ uint })(nil), output: "C0"}, |