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stackitem: serialize/deserialize pointers, fix #2815

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They of course can't be serialized, but in protected mode we still need to
handle them somehow.
This commit is contained in:
Roman Khimov 2022-11-19 23:13:59 +03:00
parent 286f40b828
commit 9ba18b5dfa
2 changed files with 31 additions and 0 deletions
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14
pkg/vm/stackitem/serialization.go
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@ -7,6 +7,7 @@ import (
"github.com/nspcc-dev/neo-go/pkg/encoding/bigint"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/util"
)
// MaxDeserialized is the maximum number one deserialized item can contain
@ -168,6 +169,13 @@ func (w *SerializationContext) serialize(item Item) error {
} else {
return fmt.Errorf("%w: Interop", ErrUnserializable)
}
case *Pointer:
if w.allowInvalid {
w.data = append(w.data, byte(PointerT))
w.appendVarUint(uint64(t.pos))
} else {
return fmt.Errorf("%w: Pointer", ErrUnserializable)
}
case *Array:
w.data = append(w.data, byte(ArrayT))
if err := w.writeArray(item, t.value, start); err != nil {
@ -311,6 +319,12 @@ func (r *deserContext) decodeBinary() Item {
return NewInterop(nil)
}
fallthrough
case PointerT:
if r.allowInvalid {
pos := int(r.ReadVarUint())
return NewPointerWithHash(pos, nil, util.Uint160{})
}
fallthrough
default:
if t == InvalidT && r.allowInvalid {
return nil