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webidl: add support for constructors

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This commit is contained in:
R. Andrew Ohana
2018-06-14 15:35:48 -07:00
parent 400015a061
commit c65cb51fba
4 changed files with 200 additions and 26 deletions
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59
crates/webidl/src/lib.rs
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@ -164,6 +164,10 @@ impl WebidlParse<()> for webidl::ast::NonPartialInterface {
}),
});
for extended_attribute in &self.extended_attributes {
extended_attribute.webidl_parse(program, self)?;
}
for member in &self.members {
member.webidl_parse(program, &self.name)?;
}
@ -172,6 +176,61 @@ impl WebidlParse<()> for webidl::ast::NonPartialInterface {
}
}
impl<'a> WebidlParse<&'a webidl::ast::NonPartialInterface> for webidl::ast::ExtendedAttribute {
fn webidl_parse(
&self,
program: &mut backend::ast::Program,
interface: &'a webidl::ast::NonPartialInterface,
) -> Result<()> {
let mut add_constructor = |arguments: &[webidl::ast::Argument]| {
let self_ty = ident_ty(rust_ident(&interface.name));
let kind = backend::ast::ImportFunctionKind::JsConstructor {
class: interface.name.to_string(),
ty: self_ty.clone(),
};
create_function(
"new",
arguments
.iter()
.map(|arg| (&*arg.name, &*arg.type_, arg.variadic)),
kind,
Some(self_ty),
vec![backend::ast::BindgenAttr::Constructor],
).map(|function| {
program.imports.push(backend::ast::Import {
module: None,
version: None,
js_namespace: None,
kind: backend::ast::ImportKind::Function(function),
})
})
};
match self {
webidl::ast::ExtendedAttribute::ArgumentList(
webidl::ast::ArgumentListExtendedAttribute { arguments, name },
) if name == "Constructor" =>
{
add_constructor(&*arguments);
}
webidl::ast::ExtendedAttribute::NoArguments(webidl::ast::Other::Identifier(name))
if name == "Constructor" =>
{
add_constructor(&[] as &[_]);
}
webidl::ast::ExtendedAttribute::ArgumentList(_)
| webidl::ast::ExtendedAttribute::Identifier(_)
| webidl::ast::ExtendedAttribute::IdentifierList(_)
| webidl::ast::ExtendedAttribute::NamedArgumentList(_)
| webidl::ast::ExtendedAttribute::NoArguments(_) => {
warn!("Unsupported WebIDL extended attribute: {:?}", self);
}
}
Ok(())
}
}
impl<'a> WebidlParse<&'a str> for webidl::ast::InterfaceMember {
fn webidl_parse(&self, program: &mut backend::ast::Program, self_name: &'a str) -> Result<()> {
match *self {