Prevent transpiling of swc helpers (cont.)

[bert-mccutchen]

Describe the bug

A past issue has re-appeared (#3201) under a different helper: _instanceof

When using SWC in a bundler that also transpiles node_modules and externalHelpers is enabled, the instanceof object expression in the _instanceof helper:

swc/packages/helpers/esm/_instanceof.js

Line 4 in 0a5a2d4

} else return left instanceof right;

is transpiled to call the _instanceof helper, leading to infinite recursion:

// node_modules/@swc/helpers/esm/_instanceof.js
function _instanceof1(left, right) {
  if (right != null && typeof Symbol !== "undefined" && right[Symbol.hasInstance]) {
    return !!right[Symbol.hasInstance](left);
  } else return _instanceof1(left, right);
}
var init_instanceof = __esm({
  "node_modules/@swc/helpers/esm/_instanceof.js": function() {
    init_instanceof();
  }
});

Input code

function _instanceof(left, right) {
    if (right != null && typeof Symbol !== "undefined" && right[Symbol.hasInstance]) {
        return !!right[Symbol.hasInstance](left);
    } else return left instanceof right;
}
export { _instanceof as _ };

Config

{
  "jsc": {
    "parser": {
      "syntax": "ecmascript",
      "jsx": false
    },
    "target": "es5",
    "externalHelpers": true,
    "loose": false,
    "minify": {
      "compress": false,
      "mangle": false
    }
  },
  "module": {
    "type": "es6"
  },
  "minify": false,
  "isModule": true
}

Playground link (or link to the minimal reproduction)

https://play.swc.rs/?version=1.7.28&code=H4sIAAAAAAAAA3VPQQqDMBC8%2B4rRQ1Eo%2FYD4gJ57LEWsbmog3UiygYr492qstJfOcWdmZ0YFbkVbRq3ZS8MtWZUbUnKE049eCkwJFmiFPB6QVuBgDA4HyDgsclzG592ahaiQBe5IaaYuWwXRcd34U9%2F48yfjtr9d4UiCY6TpX3UsVJTRMYOMp920Evg23wLLZE7oNVgnmH53ofGoMZdvX8z%2B4PQAAAA%3D&config=H4sIAAAAAAAAA1WPPQ6DMAyFd06BPHdth56gSw9hpQYF5U%2B2kUCIuzdAQstmv%2B%2FZfl6atoVBDDzbJZe5SchCfPZZkTkoTlkBMh7FsE0Kt0oH2VCHTmiX1oOAIvek%2B5Tcix1oUuKA7kUuEUumyiMV6GIUqruK5m2w3fyfxkSfmESuxs2KoXd0zdKUPODjZ9xh%2BVLnREe2B%2FxM9di5GKy86%2BSWtFm%2FmL2vqjEBAAA%3D

SWC Info output

No response

Expected behavior

No infinite recursion

Actual behavior

Infinite recursion of _instanceof1

Version

1.7.28

Additional context

No response