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helpers, disco: Parse children based on their name and namespace.

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This commit is contained in:
Emmanuel Gil Peyrot 2017-11-23 16:32:18 +00:00
parent d78a0e6dae
commit 0ead24a041
2 changed files with 8 additions and 4 deletions
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2
src/disco.rs
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@ -214,7 +214,7 @@ generate_element_with_children!(
],
children: [
/// List of items pointed by this entity.
items: Vec<Item> = "item" => Item
items: Vec<Item> = ("item", ns::DISCO_ITEMS) => Item
]
);

6
src/macros.rs
View file

@ -295,7 +295,7 @@ macro_rules! generate_element_with_text {
}
macro_rules! generate_element_with_children {
($(#[$meta:meta])* $elem:ident, $name:tt, $ns:expr, attributes: [$($(#[$attr_meta:meta])* $attr:ident: $attr_type:ty = $attr_name:tt => $attr_action:tt),+], children: [$($(#[$child_meta:meta])* $child_ident:ident: Vec<$child_type:ty> = $child_name:tt => $child_constructor:ident),+]) => (
($(#[$meta:meta])* $elem:ident, $name:tt, $ns:expr, attributes: [$($(#[$attr_meta:meta])* $attr:ident: $attr_type:ty = $attr_name:tt => $attr_action:tt),+], children: [$($(#[$child_meta:meta])* $child_ident:ident: Vec<$child_type:ty> = ($child_name:tt, $child_ns:expr) => $child_constructor:ident),+]) => (
$(#[$meta])*
#[derive(Debug, Clone)]
pub struct $elem {
@ -318,9 +318,13 @@ macro_rules! generate_element_with_children {
let mut parsed_children = vec!();
for child in elem.children() {
$(
if child.is($child_name, $child_ns) {
let parsed_child = $child_constructor::try_from(child.clone())?;
parsed_children.push(parsed_child);
continue;
}
)*
return Err(Error::ParseError(concat!("Unknown child in ", $name, " element.")));
}
Ok($elem {
$(