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use libsyntax2::{
AstNode, SyntaxNode, SmolStr, ast
};
pub struct ModuleScope {
entries: Vec<Entry>,
}
impl ModuleScope {
pub fn new(m: ast::Root) -> ModuleScope {
let entries = m.items().filter_map(|item| {
match item {
ast::ModuleItem::StructDef(item) => Entry::new(item),
ast::ModuleItem::EnumDef(item) => Entry::new(item),
ast::ModuleItem::FnDef(item) => Entry::new(item),
ast::ModuleItem::ConstDef(item) => Entry::new(item),
ast::ModuleItem::StaticDef(item) => Entry::new(item),
ast::ModuleItem::TraitDef(item) => Entry::new(item),
ast::ModuleItem::ExternCrateItem(_) |
ast::ModuleItem::ImplItem(_) |
ast::ModuleItem::UseItem(_) => None
}
}).collect();
ModuleScope { entries }
}
pub fn entries(&self) -> &[Entry] {
self.entries.as_slice()
}
}
pub struct Entry {
name: SyntaxNode,
}
impl Entry {
fn new<'a>(item: impl ast::NameOwner<'a>) -> Option<Entry> {
let name = item.name()?;
Some(Entry { name: name.syntax().owned() })
}
pub fn name(&self) -> SmolStr {
self.ast().text()
}
fn ast(&self) -> ast::Name {
ast::Name::cast(self.name.borrowed()).unwrap()
}
}
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