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stackitem: introduce Convertible interface

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We have a lot of native contract types that are converted to stack items
before serialization, then deserialized as stack items and converted back to
regular structures. stackitem.Convertible allows to remove a lot of repetitive
io.Serializable code.

This also introduces to/from converter in testserdes which unfortunately
required to change util tests to avoid circular references.
This commit is contained in:
Roman Khimov 2021-07-17 18:37:33 +03:00
parent 2d993d0da5
commit aab18c3083
23 changed files with 223 additions and 339 deletions
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19
pkg/core/state/contract.go
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@ -35,25 +35,6 @@ type NativeContract struct {
UpdateHistory []uint32 `json:"updatehistory"`
}
// DecodeBinary implements Serializable interface.
func (c *Contract) DecodeBinary(r *io.BinReader) {
si := stackitem.DecodeBinary(r)
if r.Err != nil {
return
}
r.Err = c.FromStackItem(si)
}
// EncodeBinary implements Serializable interface.
func (c *Contract) EncodeBinary(w *io.BinWriter) {
si, err := c.ToStackItem()
if err != nil {
w.Err = err
return
}
stackitem.EncodeBinary(si, w)
}
// ToStackItem converts state.Contract to stackitem.Item.
func (c *Contract) ToStackItem() (stackitem.Item, error) {
rawNef, err := c.NEF.Bytes()