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: transform.rs
    path of file: ./repos/taro/crates/swc_plugin_compile_mode/src
    
    the code of the file until where you have to start completion: 
use swc_core::{
    common::{
        iter::IdentifyLast,
        util::take::Take,
        DUMMY_SP as span,
        Spanned,
    },
    ecma::{
        self,
        ast::*,
        visit::{VisitMut, VisitMutWith},
        utils::{quote_ident, quote_str},
    },
    plugin::errors::HANDLER,
    atoms::Atom,
};
use std::collections::HashMap;
use crate::{PluginConfig, utils::as_xscript_expr_string};
use crate::utils::{self, constants::*};

struct PreVisitor {
    is_in_and_expr: bool,
}
impl PreVisitor {
    fn new () -> Self {
        Self {
            is_in_and_expr: false
        }
    }
}
impl VisitMut for PreVisitor {
    fn visit_mut_jsx_element_children(&mut self, children: &mut Vec<JSXElementChild>) {
        let len = children.len();

        // 当 JSX 循环表达式存在兄弟节点，且这些兄弟节点中有动态节点（存在 JSX 表达式）时，
        // 自动为该循环体外层包裹一个 <block>。
        // 对应测试用例：should_loop_be_wrapped_when_its_not_the_only_child
        if len > 1 {
            let mut lis
    
    fn visit_mut_jsx_element_children(&mut self, children: &mut Vec<JSXElementChild>) {
        let len = children.len();

        // 当 JSX 循环表达式存在兄弟节点，且这些兄弟节点中有动态节点（存在 JSX 表达式）时，
        // 自动为该循环体外层包裹一个 <block>。
        // 对应测试用例：should_loop_be_wrapped_when_its_not_the_only_child
        if len > 1 {
            let mut list: Vec<usize> = vec![];

            // 收集 JSX 循环表达式到 list
            children
                .iter()
                .enumerate()
                .for_each(|(i, child)| {
                    if let JSXElementChild::JSXExprContainer(JSXExprContainer { expr: JSXExpr::Expr(expr), .. }) = child {
                        if let Expr::Call(CallExpr { callee: Callee::Expr(callee_expr), args, .. }) = &**expr {
                            if utils::is_call_expr_of_loop(callee_expr, args) {
                                list.push(i);
                            }
                        }
                    }
                });

            // 遍历 list，为每个 child 的外层包裹 <block>
            fn wrap (list: Vec<usize>, children: &mut Vec<JSXElementChild>) {
                list.into_iter().for_each(|i| {
                    let child = &mut children[i];
                    if let JSXElementChild::JSXExprContainer(JSXExprContainer { expr: JSXExpr::Expr(expr), .. }) = child {
                        let expr = expr.take();
                        *child = JSXElementChild::JSXElement(Box::new(JSXElement {
                            span,
                            opening: JSXOpeningElement {
                                name: JSXElementName::Ident(quote_ident!("block")),
                                span,
                                attrs: vec![],
                                self_closing: false,
                                type_args: None
                            },
                            children: vec![JSXElementChild::JSXExprContainer(JSXExprContainer { span, expr: JSXExpr::Expr(expr) })],
                            closing: Some(JSXClosingElement { span, name: JSXElementName::Ident(quote_ident!("block")) })
                        }));
                    }
                });
            }

            if list.len() == 1 {
                // 只有一个 JSX 循环表达式时，检查兄弟节点是否全是静态节点，如果不是则要包裹 <block>
                let mut pure = true;
                let index = list[0];
                for i in 0..len {
                    if i != index && !utils::is_static_jsx_element_child(&children[i]) {
                        pure = false;
                        break;
                    }
                }
                if !pure {
                    wrap(list, children);
                }
            } else if list.len() > 1 {
                // 有多个 JSX 循环表达式时一定要包裹 <block>
                wrap(list, children);
            }
        }

        children.visit_mut_children_with(self);
    }