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use std::sync::Arc;
use ra_syntax::ast::{AstNode, FnDef, FnDefNode};
use crate::hir::{
function::{FnId, FnScopes},
DescriptorDatabase,
};
/// Resolve `FnId` to the corresponding `SyntaxNode`
pub(crate) fn fn_syntax(db: &impl DescriptorDatabase, fn_id: FnId) -> FnDefNode {
let ptr = db.id_maps().fn_ptr(fn_id);
let syntax = db.resolve_syntax_ptr(ptr);
FnDef::cast(syntax.borrowed()).unwrap().owned()
}
pub(crate) fn fn_scopes(db: &impl DescriptorDatabase, fn_id: FnId) -> Arc<FnScopes> {
let syntax = db._fn_syntax(fn_id);
let res = FnScopes::new(syntax.borrowed());
Arc::new(res)
}
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