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xml: Custom serializers

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Lennart
2024-12-27 15:43:41 +01:00
parent 9242557741
commit a3a633f74f
3 changed files with 40 additions and 4 deletions
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1
crates/xml/derive/src/attrs.rs
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@@ -59,6 +59,7 @@ pub struct FieldAttrs {
pub common: TagAttrs,
pub flatten: Flag,
pub default: Option<syn::ExprPath>,
pub serialize_with: Option<syn::ExprPath>,
#[darling(default, rename = "ty")]
pub xml_ty: FieldType,
}

13
crates/xml/derive/src/field.rs
View File

@@ -251,6 +251,11 @@ impl Field {
pub fn tag_writer(&self) -> Option<proc_macro2::TokenStream> {
let field_ident = self.field_ident();
let field_name = self.xml_name();
let serializer = if let Some(serialize_with) = &self.attrs.serialize_with {
quote! { #serialize_with }
} else {
quote! { ::rustical_xml::XmlSerialize::serialize }
};
match (&self.attrs.xml_ty, self.attrs.flatten.is_present()) {
(FieldType::Attr, _) => None,
@@ -264,19 +269,19 @@ impl Field {
}),
(FieldType::Tag, true) => Some(quote! {
for item in self.#field_ident.iter() {
::rustical_xml::XmlSerialize::serialize(item, None, Some(#field_name), writer)?;
#serializer(item, None, Some(#field_name), writer)?;
}
}),
(FieldType::Tag, false) => Some(quote! {
::rustical_xml::XmlSerialize::serialize(&self.#field_ident, None, Some(#field_name), writer)?;
#serializer(&self.#field_ident, None, Some(#field_name), writer)?;
}),
(FieldType::Untagged, true) => Some(quote! {
for item in self.#field_ident.iter() {
::rustical_xml::XmlSerialize::serialize(item, None, None, writer)?;
#serializer(item, None, None, writer)?;
}
}),
(FieldType::Untagged, false) => Some(quote! {
::rustical_xml::XmlSerialize::serialize(&self.#field_ident, None, None, writer)?;
#serializer(&self.#field_ident, None, None, writer)?;
}),
// TODO: Think about what to do here
(FieldType::TagName | FieldType::Namespace, _) => None,