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smartcontract: add FromStackItem wrapper for RPC bindings

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Make it exported and reusable from the user's code.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
This commit is contained in:
Anna Shaleva 2023-05-03 14:55:02 +03:00
parent b5ec1271d5
commit 36af361c2b
2 changed files with 318 additions and 158 deletions
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454
cli/smartcontract/testdata/structs/rpcbindings.out vendored
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22
pkg/smartcontract/rpcbinding/binding.go
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@ -221,25 +221,35 @@ func itemTo{{toTypeName $name}}(item stackitem.Item, err error) (*{{toTypeName $
if err != nil {
return nil, err
}
var res = new({{toTypeName $name}})
err = res.FromStackItem(item)
return res, err
}
// FromStackItem retrieves fields of {{toTypeName $name}} from the given stack item
// and returns an error if so.
func (res *{{toTypeName $name}}) FromStackItem(item stackitem.Item) error {
arr, ok := item.Value().([]stackitem.Item)
if !ok {
return nil, errors.New("not an array")
return errors.New("not an array")
}
if len(arr) != {{len $typ.Fields}} {
return nil, errors.New("wrong number of structure elements")
return errors.New("wrong number of structure elements")
}
var res = new({{toTypeName $name}})
{{if len .Fields}} var index = -1
{{if len .Fields}} var (
index = -1
err error
)
{{- range $m := $typ.Fields}}
index++
res.{{.Field}}, err = {{etTypeConverter .ExtendedType "arr[index]"}}
if err != nil {
return nil, fmt.Errorf("field {{.Field}}: %w", err)
return fmt.Errorf("field {{.Field}}: %w", err)
}
{{end}}
{{end}}
return res, err
return nil
}
{{end}}`