The spread operator helper not copy the getter function.

[underfin]

Description

The spread operator will output code which has __objSpread helper, but this helper behavior is not equal the native spread oprator. The getter funtion is lost. The original issue is vitejs/vite#3247

Input

const  value = { ...{},  get data() { return 1 } } 
console.log(value)

Output

(() => {
  var __defProp = Object.defineProperty;
  var __hasOwnProp = Object.prototype.hasOwnProperty;
  var __getOwnPropSymbols = Object.getOwnPropertySymbols;
  var __propIsEnum = Object.prototype.propertyIsEnumerable;
  var __defNormalProp = (obj, key, value2) => key in obj ? __defProp(obj, key, {enumerable: true, configurable: true, writable: true, value: value2}) : obj[key] = value2;
  var __objSpread = (a, b) => {
    for (var prop in b || (b = {}))
      if (__hasOwnProp.call(b, prop))
        __defNormalProp(a, prop, b[prop]);
    if (__getOwnPropSymbols)
      for (var prop of __getOwnPropSymbols(b)) {
        if (__propIsEnum.call(b, prop))
          __defNormalProp(a, prop, b[prop]);
      }
    return a;
  };

  // src/main.ts
  var value = __objSpread(__objSpread({}, {}), {get data() {
    return 1;
  }});
  console.log(value);
})();

[evanw]

Thanks for the report. I can reproduce the issue. It looks like the TypeScript compiler (which esbuild's transform is modeled after) has the same issue, so that's why this is happening: microsoft/TypeScript#24799. I should be able to fix this.