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Add a PubSub module.

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This commit is contained in:
Emmanuel Gil Peyrot 2018-05-14 21:04:16 +02:00
commit fcdfc6d85a
3 changed files with 630 additions and 0 deletions
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138
src/macros.rs
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@ -101,6 +101,38 @@ macro_rules! generate_attribute {
}
}
);
($elem:ident, $name:tt, bool) => (
#[derive(Debug, Clone, PartialEq)]
pub enum $elem {
/// True value, represented by either 'true' or '1'.
True,
/// False value, represented by either 'false' or '0'.
False,
}
impl ::std::str::FromStr for $elem {
type Err = ::error::Error;
fn from_str(s: &str) -> Result<Self, ::error::Error> {
Ok(match s {
"true" | "1" => $elem::True,
"false" | "0" => $elem::False,
_ => return Err(::error::Error::ParseError(concat!("Unknown value for '", $name, "' attribute."))),
})
}
}
impl ::minidom::IntoAttributeValue for $elem {
fn into_attribute_value(self) -> Option<String> {
match self {
$elem::True => Some(String::from("true")),
$elem::False => None
}
}
}
impl ::std::default::Default for $elem {
fn default() -> $elem {
$elem::False
}
}
);
}
macro_rules! generate_element_enum {
@ -392,6 +424,9 @@ macro_rules! generate_element_with_text {
}
macro_rules! generate_element_with_children {
($(#[$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])* $child_ident:ident: Vec<$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])* $child_ident: Vec<$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])* $child_ident:ident: Vec<$child_type:ty> = ($child_name:tt, $child_ns:ident) => $child_constructor:ident),+]) => (
$(#[$meta])*
#[derive(Debug, Clone)]
@ -448,4 +483,107 @@ macro_rules! generate_element_with_children {
}
}
);
($(#[$meta:meta])* $elem:ident, $name:tt, $ns:ident, child: ($(#[$child_meta:meta])* $child_ident:ident: Option<$child_type:ty> = ($child_name:tt, $child_ns:ident) => $child_constructor:ident)) => (
generate_element_with_children!($(#[$meta])* $elem, $name, $ns, attributes: [], child: ($(#[$child_meta])* $child_ident: Option<$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 => $attr_action:tt),*,], child: ($(#[$child_meta:meta])* $child_ident:ident: Option<$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 => $attr_action),*], child: ($(#[$child_meta])* $child_ident: Option<$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 => $attr_action:tt),*], child: ($(#[$child_meta:meta])* $child_ident:ident: Option<$child_type:ty> = ($child_name:tt, $child_ns:ident) => $child_constructor:ident)) => (
$(#[$meta])*
#[derive(Debug, Clone)]
pub struct $elem {
$(
$(#[$attr_meta])*
pub $attr: $attr_type,
)*
$(#[$child_meta])*
pub $child_ident: Option<$child_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_unknown_attributes!(elem, $name, [$($attr_name),*]);
let mut parsed_child = None;
for child in elem.children() {
if child.is($child_name, ::ns::$child_ns) {
parsed_child = Some($child_constructor::try_from(child.clone())?);
continue;
}
return Err(::error::Error::ParseError(concat!("Unknown child in ", $name, " element.")));
}
Ok($elem {
$(
$attr: get_attr!(elem, $attr_name, $attr_action),
)*
$child_ident: parsed_child,
})
}
}
impl From<$elem> for ::minidom::Element {
fn from(elem: $elem) -> ::minidom::Element {
::minidom::Element::builder($name)
.ns(::ns::$ns)
$(
.attr($attr_name, elem.$attr)
)*
.append(elem.$child_ident)
.build()
}
}
);
($(#[$meta:meta])* $elem:ident, $name:tt, $ns:ident, child: ($(#[$child_meta:meta])* $child_ident:ident: $child_type:ty = ($child_name:tt, $child_ns:ident) => $child_constructor:ident)) => (
generate_element_with_children!($(#[$meta])* $elem, $name, $ns, attributes: [], child: ($(#[$child_meta])* $child_ident: $child_type = ($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 => $attr_action:tt),*], child: ($(#[$child_meta:meta])* $child_ident:ident: $child_type:ty = ($child_name:tt, $child_ns:ident) => $child_constructor:ident)) => (
$(#[$meta])*
#[derive(Debug, Clone)]
pub struct $elem {
$(
$(#[$attr_meta])*
pub $attr: $attr_type,
)*
$(#[$child_meta])*
pub $child_ident: $child_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_unknown_attributes!(elem, $name, [$($attr_name),*]);
let mut parsed_child = None;
for child in elem.children() {
if child.is($child_name, ::ns::$child_ns) {
parsed_child = Some($child_constructor::try_from(child.clone())?);
continue;
}
return Err(::error::Error::ParseError(concat!("Unknown child in ", $name, " element.")));
}
Ok($elem {
$(
$attr: get_attr!(elem, $attr_name, $attr_action),
)*
$child_ident: parsed_child.ok_or(::error::Error::ParseError(concat!("Missing child ", $child_name, " in ", $name, " element.")))?,
})
}
}
impl From<$elem> for ::minidom::Element {
fn from(elem: $elem) -> ::minidom::Element {
::minidom::Element::builder($name)
.ns(::ns::$ns)
$(
.attr($attr_name, elem.$attr)
)*
.append(elem.$child_ident)
.build()
}
}
);
}