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rlp: don't panic for nil *big.Int

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All other pointer types can handle nil just fine.
This commit is contained in:
Felix Lange 2015-03-17 23:49:49 +01:00
parent 86661de077
commit cb009a5c4d
2 changed files with 7 additions and 1 deletions
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7
rlp/encode.go
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@ -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 {

1
rlp/encode_test.go
View File

@ -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"},