import fs from "node:fs/promises";
const frontmatterRE = /^---(.*?)^---/ms;
const RETURN_REPLACE_RE = /(\/\/[^\n]*|\/\*[\s\S]*?\*\/|`(?:[^`\\]|\\.)*`|"(?:[^"\\]|\\.)*"|'(?:[^'\\]|\\.)*')|(?<!\.)\breturn(\s*;|\b)/g;
function replaceTopLevelReturns(code) {
  return code.replace(RETURN_REPLACE_RE, (_match, skip, tail) => {
    if (skip !== void 0) return skip;
    return tail.trim() === ";" ? "throw 0;" : "throw ";
  });
}
async function loadId(pluginContainer, id) {
  const result = await pluginContainer.load(id, { ssr: true });
  if (result) {
    if (typeof result === "string") {
      return result;
    } else {
      return result.code;
    }
  }
  try {
    return await fs.readFile(id, "utf-8");
  } catch {
  }
}
export {
  frontmatterRE,
  loadId,
  replaceTopLevelReturns
};