impl Clean<Item> for doctree::Macro {
fn clean(&self, cx: &DocContext) -> Item {
+ let name = format!("{}!", self.name.clean(cx));
Item {
- name: Some(format!("{}!", self.name.clean(cx))),
+ name: Some(name.clone()),
attrs: self.attrs.clean(cx),
source: self.whence.clean(cx),
visibility: hir::Public.clean(cx),
stability: self.stab.clean(cx),
def_id: cx.map.local_def_id(self.id),
inner: MacroItem(Macro {
- source: self.whence.to_src(cx),
+ source: format!("macro_rules! {} {{\n{}}}",
+ name.trim_right_matches('!'), self.matchers.iter().map(|span|
+ format!(" {} => {{ ... }}\n", span.to_src(cx))).collect::<String>()),
imported_from: self.imported_from.clean(cx),
}),
}
pub id: ast::NodeId,
pub attrs: Vec<ast::Attribute>,
pub whence: Span,
+ pub matchers: Vec<Span>,
pub stab: Option<attr::Stability>,
pub imported_from: Option<Name>,
}
// convert each exported_macro into a doc item
fn visit_macro(&self, def: &hir::MacroDef) -> Macro {
+ // Extract the spans of all matchers. They represent the "interface" of the macro.
+ let matchers = def.body.chunks(4).map(|arm| arm[0].get_span()).collect();
+
Macro {
id: def.id,
attrs: def.attrs.clone(),
name: def.name,
whence: def.span,
+ matchers: matchers,
stab: self.stability(def.id),
imported_from: def.imported_from,
}