59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
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package pana
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import (
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"unsafe"
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ld "sourcery.dny.nu/longdistance"
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)
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// Has checks if an object has a specific property set.
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//
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// It handles JSON-LD keyword aliasses for id and type.
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func Has[T ld.Internal](in *T, property string) bool {
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if property == "id" {
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property = ld.KeywordID
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}
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if property == "type" {
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property = ld.KeywordType
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}
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return (*ld.Node)(unsafe.Pointer(in)).Has(property)
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}
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// IsReference indicates if this object is a reference.
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//
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// This means it only has the ID, and optionally a Type, set. You'll need to
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// retrieve the object using the ID to get additional properties.
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func IsReference[T ld.Internal](in *T) bool {
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return (*ld.Node)(unsafe.Pointer(in)).IsSubjectReference()
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}
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// IsObject indicates if this object is a (partially) complete object.
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//
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// This means it has an ID, optionally a Type and at least one other
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// property. It doesn't mean the object representation is complete, and you may
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// need to retrieve the object using the ID to get additional properties.
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func IsObjec[T ld.Internal](in *T) bool {
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return (*ld.Node)(unsafe.Pointer(in)).IsSubject()
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}
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// Properties returns a set with an entry for each property set on an object.
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//
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// It handles JSON-LD keyword aliasses for id and type.
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func Properties[T ld.Internal](in *T) map[string]struct{} {
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s := (*ld.Node)(unsafe.Pointer(in)).PropertySet()
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if _, ok := s[ld.KeywordID]; ok {
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delete(s, ld.KeywordID)
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s["id"] = struct{}{}
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}
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if _, ok := s[ld.KeywordType]; ok {
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delete(s, ld.KeywordType)
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s["type"] = struct{}{}
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}
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return s
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}
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