Implement OneOrMany<&AnyString>::to_as_string()
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e407d58ee9
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@ -4,6 +4,7 @@ use activitystreams::{
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iri_string::types::IriString,
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markers::Activity as Activity07,
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object::{ApObject, Article},
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primitives::{AnyString, OneOrMany},
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unparsed::UnparsedMutExt,
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};
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use activitystreams_ext::{Ext1, UnparsedExtension};
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@ -407,6 +408,27 @@ where
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pub type LicensedArticle = Ext1<ApObject<Article>, Licensed07>;
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pub trait ToAsString {
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fn to_as_string(&self) -> Option<String>;
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}
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impl ToAsString for OneOrMany<&AnyString> {
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fn to_as_string(&self) -> Option<String> {
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if let Some(prop) = self.as_one() {
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prop.as_xsd_string()
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.or_else(|| prop.as_rdf_lang_string().map(|ls| ls.value.as_str()))
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} else if let Some(props) = self.as_many() {
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props.iter().next().and_then(|prop| {
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prop.as_xsd_string()
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.or_else(|| prop.as_rdf_lang_string().map(|ls| ls.value.as_str()))
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})
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} else {
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None
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}
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.map(|s| s.to_string())
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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