dropLabels unexpected behaviour

[Inqnuam]

dropLabels + bundle + default export produces invalid output

{
  dropLabels: ['DROP'],
  format: "esm",
  bundle: true,
}

// original code
const myFunc = ()=> {
 DROP: {console.log("drop")}
 console.log("keep")
}
export default myFunc

// esbuild output
export {
  entry_default as default
};

setting bundle to false

// esbuild output
const myFunc = () => {
  console.log("keep");
};
var entry_default = myFunc;
export {
  entry_default as default
};

online reproduction

[Inqnuam]

No issue with named export

// original code
const myFunc = ()=> {
DROP: {console.log("drop")}
console.log("keep")
}

export {myFunc}

// esbuild output with both bundle true and false
const myFunc = () => {
  console.log("keep");
};
export {
  myFunc
};

[evanw]

That sure is strange. Thanks for the report. Looks like I forgot a popScope() when dropping labels.