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import { decode, Header, MiddlewareFunc, MIME } from "./deps.ts";const { transpileOnly, readFile } = Deno;
export const jsxLoader: MiddlewareFunc = (next) =>  async (c) => {    const filepath = c.get("realpath") as string | undefined;
    if (filepath && /\.[j|t]sx?$/.test(filepath)) {      c.response.headers.set(        Header.ContentType,        MIME.ApplicationJavaScriptCharsetUTF8,      );      const f = await readFile(filepath);      return (        await transpileOnly(          {            [filepath]: decode(f),          },          { jsx: "react" },        )      )[filepath].source;    }
    return next(c);  };