use ra_db::{SyntaxDatabase, Cancelable};
use ra_syntax::{
AstNode, SyntaxNode, TextUnit, TextRange,
SyntaxKind::FN_DEF,
ast::{self, ArgListOwner},
};
use ra_editor::find_node_at_offset;
use hir::FnSignatureInfo;
use crate::{FilePosition, CallInfo, db::RootDatabase};
pub(crate) fn call_info(db: &RootDatabase, position: FilePosition) -> Cancelable