mirror of
https://github.com/nspcc-dev/neo-go.git
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106 lines
2.5 KiB
Go
106 lines
2.5 KiB
Go
package manifest
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// This file contains types and helper methods for wildcard containers.
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// Wildcard container can contain either a finite set of elements or
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// every possible element, in which case it is named `wildcard`.
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import (
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"bytes"
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"encoding/json"
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"github.com/nspcc-dev/neo-go/pkg/util"
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)
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// WildStrings represents string set which can be wildcard.
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type WildStrings struct {
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Value []string
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}
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// WildUint160s represents Uint160 set which can be wildcard.
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type WildUint160s struct {
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Value []util.Uint160
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}
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// Contains checks if v is in the container.
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func (c *WildStrings) Contains(v string) bool {
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if c.IsWildcard() {
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return true
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}
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for _, s := range c.Value {
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if v == s {
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return true
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}
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}
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return false
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}
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// Contains checks if v is in the container.
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func (c *WildUint160s) Contains(v util.Uint160) bool {
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if c.IsWildcard() {
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return true
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}
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for _, u := range c.Value {
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if u.Equals(v) {
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return true
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}
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}
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return false
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}
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// IsWildcard returns true iff container is wildcard.
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func (c *WildStrings) IsWildcard() bool { return c.Value == nil }
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// IsWildcard returns true iff container is wildcard.
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func (c *WildUint160s) IsWildcard() bool { return c.Value == nil }
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// Restrict transforms container into an empty one.
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func (c *WildStrings) Restrict() { c.Value = []string{} }
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// Restrict transforms container into an empty one.
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func (c *WildUint160s) Restrict() { c.Value = []util.Uint160{} }
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// Add adds v to the container.
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func (c *WildStrings) Add(v string) { c.Value = append(c.Value, v) }
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// Add adds v to the container.
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func (c *WildUint160s) Add(v util.Uint160) { c.Value = append(c.Value, v) }
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// MarshalJSON implements json.Marshaler interface.
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func (c WildStrings) MarshalJSON() ([]byte, error) {
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if c.IsWildcard() {
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return []byte(`"*"`), nil
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}
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return json.Marshal(c.Value)
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}
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// MarshalJSON implements json.Marshaler interface.
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func (c WildUint160s) MarshalJSON() ([]byte, error) {
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if c.IsWildcard() {
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return []byte(`"*"`), nil
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}
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return json.Marshal(c.Value)
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}
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// UnmarshalJSON implements json.Unmarshaler interface.
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func (c *WildStrings) UnmarshalJSON(data []byte) error {
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if !bytes.Equal(data, []byte(`"*"`)) {
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ss := []string{}
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if err := json.Unmarshal(data, &ss); err != nil {
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return err
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}
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c.Value = ss
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}
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return nil
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}
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// UnmarshalJSON implements json.Unmarshaler interface.
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func (c *WildUint160s) UnmarshalJSON(data []byte) error {
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if !bytes.Equal(data, []byte(`"*"`)) {
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us := []util.Uint160{}
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if err := json.Unmarshal(data, &us); err != nil {
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return err
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}
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c.Value = us
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}
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return nil
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}
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