activity/streams/impl/activitystreams/property_rel/gen_property_rel.go

484 行
15 KiB
Go

package propertyrel
import (
"fmt"
rfc5988 "github.com/go-fed/activity/streams/values/rfc5988"
vocab "github.com/go-fed/activity/streams/vocab"
"net/url"
)
// RelPropertyIterator is an iterator for a property. It is permitted to be a
// single default-valued value type.
type RelPropertyIterator struct {
rfc5988Member string
hasRfc5988Member bool
unknown interface{}
iri *url.URL
alias string
myIdx int
parent vocab.RelPropertyInterface
}
// NewRelPropertyIterator creates a new rel property.
func NewRelPropertyIterator() *RelPropertyIterator {
return &RelPropertyIterator{alias: ""}
}
// deserializeRelPropertyIterator creates an iterator from an element that has
// been unmarshalled from a text or binary format.
func deserializeRelPropertyIterator(i interface{}, aliasMap map[string]string) (*RelPropertyIterator, error) {
alias := ""
if a, ok := aliasMap["https://www.w3.org/TR/activitystreams-vocabulary"]; ok {
alias = a
}
if s, ok := i.(string); ok {
u, err := url.Parse(s)
// If error exists, don't error out -- skip this and treat as unknown string ([]byte) at worst
// Also, if no scheme exists, don't treat it as a URL -- net/url is greedy
if err == nil && len(u.Scheme) > 0 {
this := &RelPropertyIterator{
alias: alias,
iri: u,
}
return this, nil
}
}
if v, err := rfc5988.DeserializeRfc5988(i); err == nil {
this := &RelPropertyIterator{
alias: alias,
hasRfc5988Member: true,
rfc5988Member: v,
}
return this, nil
}
this := &RelPropertyIterator{
alias: alias,
unknown: i,
}
return this, nil
}
// Get returns the value of this property. When IsRfc5988 returns false, Get will
// return any arbitrary value.
func (this RelPropertyIterator) Get() string {
return this.rfc5988Member
}
// GetIRI returns the IRI of this property. When IsIRI returns false, GetIRI will
// return any arbitrary value.
func (this RelPropertyIterator) GetIRI() *url.URL {
return this.iri
}
// HasAny returns true if the value or IRI is set.
func (this RelPropertyIterator) HasAny() bool {
return this.IsRfc5988() || this.iri != nil
}
// IsIRI returns true if this property is an IRI.
func (this RelPropertyIterator) IsIRI() bool {
return this.iri != nil
}
// IsRfc5988 returns true if this property is set and not an IRI.
func (this RelPropertyIterator) IsRfc5988() bool {
return this.hasRfc5988Member
}
// JSONLDContext returns the JSONLD URIs required in the context string for this
// property and the specific values that are set. The value in the map is the
// alias used to import the property's value or values.
func (this RelPropertyIterator) JSONLDContext() map[string]string {
m := map[string]string{"https://www.w3.org/TR/activitystreams-vocabulary": this.alias}
var child map[string]string
/*
Since the literal maps in this function are determined at
code-generation time, this loop should not overwrite an existing key with a
new value.
*/
for k, v := range child {
m[k] = v
}
return m
}
// KindIndex computes an arbitrary value for indexing this kind of value. This is
// a leaky API detail only for folks looking to replace the go-fed
// implementation. Applications should not use this method.
func (this RelPropertyIterator) KindIndex() int {
if this.IsRfc5988() {
return 0
}
if this.IsIRI() {
return -2
}
return -1
}
// LessThan compares two instances of this property with an arbitrary but stable
// comparison. Applications should not use this because it is only meant to
// help alternative implementations to go-fed to be able to normalize
// nonfunctional properties.
func (this RelPropertyIterator) LessThan(o vocab.RelPropertyIteratorInterface) bool {
// LessThan comparison for if either or both are IRIs.
if this.IsIRI() && o.IsIRI() {
return this.iri.String() < o.GetIRI().String()
} else if this.IsIRI() {
// IRIs are always less than other values, none, or unknowns
return true
} else if o.IsIRI() {
// This other, none, or unknown value is always greater than IRIs
return false
}
// LessThan comparison for the single value or unknown value.
if !this.IsRfc5988() && !o.IsRfc5988() {
// Both are unknowns.
return false
} else if this.IsRfc5988() && !o.IsRfc5988() {
// Values are always greater than unknown values.
return false
} else if !this.IsRfc5988() && o.IsRfc5988() {
// Unknowns are always less than known values.
return true
} else {
// Actual comparison.
return rfc5988.LessRfc5988(this.Get(), o.Get())
}
}
// Name returns the name of this property: "rel".
func (this RelPropertyIterator) Name() string {
return "rel"
}
// Next returns the next iterator, or nil if there is no next iterator.
func (this RelPropertyIterator) Next() vocab.RelPropertyIteratorInterface {
if this.myIdx+1 >= this.parent.Len() {
return nil
} else {
return this.parent.At(this.myIdx + 1)
}
}
// Prev returns the previous iterator, or nil if there is no previous iterator.
func (this RelPropertyIterator) Prev() vocab.RelPropertyIteratorInterface {
if this.myIdx-1 < 0 {
return nil
} else {
return this.parent.At(this.myIdx - 1)
}
}
// Set sets the value of this property. Calling IsRfc5988 afterwards will return
// true.
func (this *RelPropertyIterator) Set(v string) {
this.clear()
this.rfc5988Member = v
this.hasRfc5988Member = true
}
// SetIRI sets the value of this property. Calling IsIRI afterwards will return
// true.
func (this *RelPropertyIterator) SetIRI(v *url.URL) {
this.clear()
this.iri = v
}
// clear ensures no value of this property is set. Calling IsRfc5988 afterwards
// will return false.
func (this *RelPropertyIterator) clear() {
this.unknown = nil
this.iri = nil
this.hasRfc5988Member = false
}
// serialize converts this into an interface representation suitable for
// marshalling into a text or binary format. Applications should not need this
// function as most typical use cases serialize types instead of individual
// properties. It is exposed for alternatives to go-fed implementations to use.
func (this RelPropertyIterator) serialize() (interface{}, error) {
if this.IsRfc5988() {
return rfc5988.SerializeRfc5988(this.Get())
} else if this.IsIRI() {
return this.iri.String(), nil
}
return this.unknown, nil
}
// RelProperty is the non-functional property "rel". It is permitted to have one
// or more values, and of different value types.
type RelProperty struct {
properties []*RelPropertyIterator
alias string
}
// DeserializeRelProperty creates a "rel" property from an interface
// representation that has been unmarshalled from a text or binary format.
func DeserializeRelProperty(m map[string]interface{}, aliasMap map[string]string) (vocab.RelPropertyInterface, error) {
alias := ""
if a, ok := aliasMap["https://www.w3.org/TR/activitystreams-vocabulary"]; ok {
alias = a
}
propName := "rel"
if len(alias) > 0 {
propName = fmt.Sprintf("%s:%s", alias, "rel")
}
i, ok := m[propName]
if ok {
this := &RelProperty{
alias: alias,
properties: []*RelPropertyIterator{},
}
if list, ok := i.([]interface{}); ok {
for _, iterator := range list {
if p, err := deserializeRelPropertyIterator(iterator, aliasMap); err != nil {
return this, err
} else if p != nil {
this.properties = append(this.properties, p)
}
}
} else {
if p, err := deserializeRelPropertyIterator(i, aliasMap); err != nil {
return this, err
} else if p != nil {
this.properties = append(this.properties, p)
}
}
// Set up the properties for iteration.
for idx, ele := range this.properties {
ele.parent = this
ele.myIdx = idx
}
return this, nil
}
return nil, nil
}
// NewRelProperty creates a new rel property.
func NewRelProperty() *RelProperty {
return &RelProperty{alias: ""}
}
// AppendIRI appends an IRI value to the back of a list of the property "rel"
func (this *RelProperty) AppendIRI(v *url.URL) {
this.properties = append(this.properties, &RelPropertyIterator{
alias: this.alias,
iri: v,
myIdx: this.Len(),
parent: this,
})
}
// AppendRfc5988 appends a rfc5988 value to the back of a list of the property
// "rel". Invalidates iterators that are traversing using Prev.
func (this *RelProperty) AppendRfc5988(v string) {
this.properties = append(this.properties, &RelPropertyIterator{
alias: this.alias,
hasRfc5988Member: true,
myIdx: this.Len(),
parent: this,
rfc5988Member: v,
})
}
// At returns the property value for the specified index. Panics if the index is
// out of bounds.
func (this RelProperty) At(index int) vocab.RelPropertyIteratorInterface {
return this.properties[index]
}
// Begin returns the first iterator, or nil if empty. Can be used with the
// iterator's Next method and this property's End method to iterate from front
// to back through all values.
func (this RelProperty) Begin() vocab.RelPropertyIteratorInterface {
if this.Empty() {
return nil
} else {
return this.properties[0]
}
}
// Empty returns returns true if there are no elements.
func (this RelProperty) Empty() bool {
return this.Len() == 0
}
// End returns beyond-the-last iterator, which is nil. Can be used with the
// iterator's Next method and this property's Begin method to iterate from
// front to back through all values.
func (this RelProperty) End() vocab.RelPropertyIteratorInterface {
return nil
}
// JSONLDContext returns the JSONLD URIs required in the context string for this
// property and the specific values that are set. The value in the map is the
// alias used to import the property's value or values.
func (this RelProperty) JSONLDContext() map[string]string {
m := map[string]string{"https://www.w3.org/TR/activitystreams-vocabulary": this.alias}
for _, elem := range this.properties {
child := elem.JSONLDContext()
/*
Since the literal maps in this function are determined at
code-generation time, this loop should not overwrite an existing key with a
new value.
*/
for k, v := range child {
m[k] = v
}
}
return m
}
// KindIndex computes an arbitrary value for indexing this kind of value. This is
// a leaky API method specifically needed only for alternate implementations
// for go-fed. Applications should not use this method. Panics if the index is
// out of bounds.
func (this RelProperty) KindIndex(idx int) int {
return this.properties[idx].KindIndex()
}
// Len returns the number of values that exist for the "rel" property.
func (this RelProperty) Len() (length int) {
return len(this.properties)
}
// Less computes whether another property is less than this one. Mixing types
// results in a consistent but arbitrary ordering
func (this RelProperty) Less(i, j int) bool {
idx1 := this.KindIndex(i)
idx2 := this.KindIndex(j)
if idx1 < idx2 {
return true
} else if idx1 == idx2 {
if idx1 == 0 {
lhs := this.properties[i].Get()
rhs := this.properties[j].Get()
return rfc5988.LessRfc5988(lhs, rhs)
} else if idx1 == -2 {
lhs := this.properties[i].GetIRI()
rhs := this.properties[j].GetIRI()
return lhs.String() < rhs.String()
}
}
return false
}
// LessThan compares two instances of this property with an arbitrary but stable
// comparison. Applications should not use this because it is only meant to
// help alternative implementations to go-fed to be able to normalize
// nonfunctional properties.
func (this RelProperty) LessThan(o vocab.RelPropertyInterface) bool {
l1 := this.Len()
l2 := o.Len()
l := l1
if l2 < l1 {
l = l2
}
for i := 0; i < l; i++ {
if this.properties[i].LessThan(o.At(i)) {
return true
} else if o.At(i).LessThan(this.properties[i]) {
return false
}
}
return l1 < l2
}
// Name returns the name of this property: "rel".
func (this RelProperty) Name() string {
return "rel"
}
// PrependIRI prepends an IRI value to the front of a list of the property "rel".
func (this *RelProperty) PrependIRI(v *url.URL) {
this.properties = append([]*RelPropertyIterator{{
alias: this.alias,
iri: v,
myIdx: 0,
parent: this,
}}, this.properties...)
for i := 1; i < this.Len(); i++ {
(this.properties)[i].myIdx = i
}
}
// PrependRfc5988 prepends a rfc5988 value to the front of a list of the property
// "rel". Invalidates all iterators.
func (this *RelProperty) PrependRfc5988(v string) {
this.properties = append([]*RelPropertyIterator{{
alias: this.alias,
hasRfc5988Member: true,
myIdx: 0,
parent: this,
rfc5988Member: v,
}}, this.properties...)
for i := 1; i < this.Len(); i++ {
(this.properties)[i].myIdx = i
}
}
// Remove deletes an element at the specified index from a list of the property
// "rel", regardless of its type. Panics if the index is out of bounds.
// Invalidates all iterators.
func (this *RelProperty) Remove(idx int) {
(this.properties)[idx].parent = nil
copy((this.properties)[idx:], (this.properties)[idx+1:])
(this.properties)[len(this.properties)-1] = &RelPropertyIterator{}
this.properties = (this.properties)[:len(this.properties)-1]
for i := idx; i < this.Len(); i++ {
(this.properties)[i].myIdx = i
}
}
// Serialize converts this into an interface representation suitable for
// marshalling into a text or binary format. Applications should not need this
// function as most typical use cases serialize types instead of individual
// properties. It is exposed for alternatives to go-fed implementations to use.
func (this RelProperty) Serialize() (interface{}, error) {
s := make([]interface{}, 0, len(this.properties))
for _, iterator := range this.properties {
if b, err := iterator.serialize(); err != nil {
return s, err
} else {
s = append(s, b)
}
}
// Shortcut: if serializing one value, don't return an array -- pretty sure other Fediverse software would choke on a "type" value with array, for example.
if len(s) == 1 {
return s[0], nil
}
return s, nil
}
// Set sets a rfc5988 value to be at the specified index for the property "rel".
// Panics if the index is out of bounds. Invalidates all iterators.
func (this *RelProperty) Set(idx int, v string) {
(this.properties)[idx].parent = nil
(this.properties)[idx] = &RelPropertyIterator{
alias: this.alias,
hasRfc5988Member: true,
myIdx: idx,
parent: this,
rfc5988Member: v,
}
}
// SetIRI sets an IRI value to be at the specified index for the property "rel".
// Panics if the index is out of bounds.
func (this *RelProperty) SetIRI(idx int, v *url.URL) {
(this.properties)[idx].parent = nil
(this.properties)[idx] = &RelPropertyIterator{
alias: this.alias,
iri: v,
myIdx: idx,
parent: this,
}
}
// Swap swaps the location of values at two indices for the "rel" property.
func (this RelProperty) Swap(i, j int) {
this.properties[i], this.properties[j] = this.properties[j], this.properties[i]
}