You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: mod.rs
    path of file: ./repos/swc/crates/swc_ecma_transforms_base/src/rename/analyzer
    
    the code of the file until where you have to start completion: use swc_common::Mark;
use swc_ecma_ast::*;
use swc_ecma_
    
    fn visit_catch_clause(&mut self, n: &CatchClause) {
        if self.safari_10 {
            let old_is_pat_decl = self.is_pat_decl;
            let old_in_catch_params = self.in_catch_params;

            self.is_pat_decl = true;
            self.in_catch_params = true;
            n.param.visit_with(self);

            self.in_catch_params = old_in_catch_params;
            self.is_pat_decl = old_is_pat_decl;

            self.with_scope(ScopeKind::Block, |v| {
                let old = v.is_pat_decl;
                let old_in_catch_params = v.in_catch_params;

                v.is_pat_decl = false;
                n.body.visit_children_with(v);

                v.is_pat_decl = old;
                v.in_catch_params = old_in_catch_params;
            })
        } else {
            self.with_scope(ScopeKind::Block, |v| {
                let old = v.is_pat_decl;
                let old_in_catch_params = v.in_catch_params;

                v.is_pat_decl = false;
                n.body.visit_children_with(v);

                v.is_pat_decl = true;
                v.in_catch_params = true;
                n.param.visit_with(v);

                v.is_pat_decl = old;
                v.in_catch_params = old_in_catch_params;
            })
        }
    }