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macros: Simplify generate_element_with_only_attributes!().

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This commit is contained in:
Emmanuel Gil Peyrot 2018-05-28 16:37:22 +02:00
parent a625b88fce
commit ef227c4617
1 changed files with 10 additions and 43 deletions
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53
src/macros.rs
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@ -287,43 +287,10 @@ macro_rules! generate_empty_element {
macro_rules! generate_element_with_only_attributes {
($(#[$meta:meta])* $elem:ident, $name:tt, $ns:ident, [$($(#[$attr_meta:meta])* $attr:ident: $attr_type:ty = $attr_name:tt => $attr_action:tt),+,]) => (
generate_element_with_only_attributes!($(#[$meta])* $elem, $name, $ns, [$($(#[$attr_meta])* $attr: $attr_type = $attr_name => $attr_action),*]);
generate_element_with_children!($(#[$meta])* $elem, $name, $ns, attributes: [$($(#[$attr_meta])* $attr: $attr_type = $attr_name => $attr_action),*], children: []);
);
($(#[$meta:meta])* $elem:ident, $name:tt, $ns:ident, [$($(#[$attr_meta:meta])* $attr:ident: $attr_type:ty = $attr_name:tt => $attr_action:tt),+]) => (
$(#[$meta])*
#[derive(Debug, Clone)]
pub struct $elem {
$(
$(#[$attr_meta])*
pub $attr: $attr_type,
)*
}
impl ::try_from::TryFrom<::minidom::Element> for $elem {
type Err = ::error::Error;
fn try_from(elem: ::minidom::Element) -> Result<$elem, ::error::Error> {
check_self!(elem, $name, $ns);
check_no_children!(elem, $name);
check_no_unknown_attributes!(elem, $name, [$($attr_name),*]);
Ok($elem {
$(
$attr: get_attr!(elem, $attr_name, $attr_action),
)*
})
}
}
impl From<$elem> for ::minidom::Element {
fn from(elem: $elem) -> ::minidom::Element {
::minidom::Element::builder($name)
.ns(::ns::$ns)
$(
.attr($attr_name, elem.$attr)
)*
.build()
}
}
generate_element_with_children!($(#[$meta])* $elem, $name, $ns, attributes: [$($(#[$attr_meta])* $attr: $attr_type = $attr_name => $attr_action),*], children: []);
);
}
@ -507,13 +474,13 @@ macro_rules! generate_serialiser {
}
macro_rules! generate_element_with_children {
($(#[$meta:meta])* $elem:ident, $name:tt, $ns:ident, children: [$($(#[$child_meta:meta])* $child_ident:ident: $coucou:tt<$child_type:ty> = ($child_name:tt, $child_ns:ident) => $child_constructor:ident),+]) => (
generate_element_with_children!($(#[$meta])* $elem, $name, $ns, attributes: [], children: [$($(#[$child_meta])* $child_ident: $coucou<$child_type> = ($child_name, $child_ns) => $child_constructor),+]);
($(#[$meta:meta])* $elem:ident, $name:tt, $ns:ident, children: [$($(#[$child_meta:meta])* $child_ident:ident: $coucou:tt<$child_type:ty> = ($child_name:tt, $child_ns:ident) => $child_constructor:ident),*]) => (
generate_element_with_children!($(#[$meta])* $elem, $name, $ns, attributes: [], children: [$($(#[$child_meta])* $child_ident: $coucou<$child_type> = ($child_name, $child_ns) => $child_constructor),*]);
);
($(#[$meta:meta])* $elem:ident, $name:tt, $ns:ident, attributes: [$($(#[$attr_meta:meta])* $attr:ident: $attr_type:ty = $attr_name:tt => $attr_action:tt),*,], children: [$($(#[$child_meta:meta])* $child_ident:ident: $coucou:tt<$child_type:ty> = ($child_name:tt, $child_ns:ident) => $child_constructor:ident),+]) => (
generate_element_with_children!($(#[$meta])* $elem, $name, $ns, attributes: [$($(#[$attr_meta])* $attr: $attr_type = $attr_name => $attr_action),*], children: [$($(#[$child_meta])* $child_ident: $coucou<$child_type> = ($child_name, $child_ns) => $child_constructor),+]);
($(#[$meta:meta])* $elem:ident, $name:tt, $ns:ident, attributes: [$($(#[$attr_meta:meta])* $attr:ident: $attr_type:ty = $attr_name:tt => $attr_action:tt),*,], children: [$($(#[$child_meta:meta])* $child_ident:ident: $coucou:tt<$child_type:ty> = ($child_name:tt, $child_ns:ident) => $child_constructor:ident),*]) => (
generate_element_with_children!($(#[$meta])* $elem, $name, $ns, attributes: [$($(#[$attr_meta])* $attr: $attr_type = $attr_name => $attr_action),*], children: [$($(#[$child_meta])* $child_ident: $coucou<$child_type> = ($child_name, $child_ns) => $child_constructor),*]);
);
($(#[$meta:meta])* $elem:ident, $name:tt, $ns:ident, attributes: [$($(#[$attr_meta:meta])* $attr:ident: $attr_type:ty = $attr_name:tt => $attr_action:tt),*], children: [$($(#[$child_meta:meta])* $child_ident:ident: $coucou:tt<$child_type:ty> = ($child_name:tt, $child_ns:ident) => $child_constructor:ident),+]) => (
($(#[$meta:meta])* $elem:ident, $name:tt, $ns:ident, attributes: [$($(#[$attr_meta:meta])* $attr:ident: $attr_type:ty = $attr_name:tt => $attr_action:tt),*], children: [$($(#[$child_meta:meta])* $child_ident:ident: $coucou:tt<$child_type:ty> = ($child_name:tt, $child_ns:ident) => $child_constructor:ident),*]) => (
$(#[$meta])*
#[derive(Debug, Clone)]
pub struct $elem {
@ -536,10 +503,10 @@ macro_rules! generate_element_with_children {
$(
start_parse_elem!($child_ident: $coucou);
)*
for child in elem.children() {
for _child in elem.children() {
$(
if child.is($child_name, ::ns::$child_ns) {
do_parse_elem!($child_ident: $coucou = $child_constructor => child);
if _child.is($child_name, ::ns::$child_ns) {
do_parse_elem!($child_ident: $coucou = $child_constructor => _child);
continue;
}
)*