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xso: implement support for extracting data from child elements

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This commit is contained in:
Jonas Schäfer 2024-08-01 17:16:55 +02:00
commit 2c5f1f096b
12 changed files with 728 additions and 52 deletions
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11
xso-proc/src/state.rs
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@ -638,7 +638,7 @@ impl AsItemsStateMachine {
pub(crate) fn render(
self,
vis: &Visibility,
input_ty: &Type,
input_ty_ref: &Type,
state_ty_ident: &Ident,
item_iter_ty_lifetime: &Lifetime,
item_iter_ty: &Type,
@ -650,8 +650,8 @@ impl AsItemsStateMachine {
mut variants,
} = self;
let input_ty_ref = make_ty_ref(input_ty);
let docstr = format!("Convert a {0} into XML events.\n\nThis type is generated using the [`macro@xso::AsXml`] derive macro and implements [`std::iter:Iterator`] for {0}.", input_ty_ref);
let input_ty_ref_text = make_ty_ref(input_ty_ref);
let docstr = format!("Convert a {0} into XML events.\n\nThis type is generated using the [`macro@xso::AsXml`] derive macro and implements [`std::iter:Iterator`] for {0}.", input_ty_ref_text);
let init_body = if variants.len() == 1 {
let AsItemsEntryPoint { destructure, init } = variants.remove(0);
@ -691,7 +691,7 @@ impl AsItemsStateMachine {
}
fn new(
value: &#item_iter_ty_lifetime #input_ty,
value: #input_ty_ref,
) -> ::core::result::Result<Self, ::xso::error::Error> {
::core::result::Result::Ok(#init_body)
}
@ -729,7 +729,7 @@ impl AsItemsStateMachine {
}
impl<#item_iter_ty_lifetime> #item_iter_ty {
fn new(value: &#item_iter_ty_lifetime #input_ty) -> ::core::result::Result<Self, ::xso::error::Error> {
fn new(value: #input_ty_ref) -> ::core::result::Result<Self, ::xso::error::Error> {
#state_ty_ident::new(value).map(|ok| Self(::core::option::Option::Some(ok)))
}
}
@ -765,6 +765,7 @@ fn doc_link_path(ty: &Type) -> Option<String> {
}
Some(buf)
}
Type::Reference(TypeReference { ref elem, .. }) => doc_link_path(elem),
_ => None,
}
}