Minify failed when meet some webpack comment

[JSerFeng]

Describe the bug

webpack use some strategy to help minifier minimize more bundle size.

// transform
foo // unused
// into
null && foo;

But swc failed to transform this, while it can be minimized without null && foo

You can remove comment in line 11

Input code

(() => {
  "use strict";
  class Element { }
  class PointElement extends Element {
    static id = 'point';
    constructor(cfg) {
      super();
    }
  }

  // var chart_elements = /*#__PURE__*/ Object.freeze({
  // PointElement: PointElement
  // });

  var chart_elements = /*#__PURE__*/(null && (Object.freeze({
    PointElement: PointElement
  })));

  const registerables = null && ([
    chart_elements,
    chart_plugins,
  ]);
})()
  ;

Config

{
  "jsc": {
    "parser": {
      "syntax": "ecmascript",
      "jsx": false
    },
    "target": "es2022",
    "externalHelpers": true,
    "transform": {
      "react": {
        "development": true,
        "runtime": "automatic"
      }
    },
    "minify": {
      "compress": {
        "arguments": false,
        "arrows": true,
        "booleans": true,
        "booleans_as_integers": false,
        "collapse_vars": true,
        "comparisons": true,
        "computed_props": true,
        "conditionals": true,
        "dead_code": true,
        "directives": true,
        "drop_console": false,
        "drop_debugger": true,
        "evaluate": true,
        "expression": false,
        "hoist_funs": false,
        "hoist_props": true,
        "hoist_vars": false,
        "if_return": true,
        "join_vars": true,
        "keep_classnames": false,
        "keep_fargs": true,
        "keep_fnames": false,
        "keep_infinity": false,
        "loops": true,
        "negate_iife": true,
        "properties": true,
        "reduce_funcs": false,
        "reduce_vars": false,
        "side_effects": true,
        "switches": true,
        "typeofs": true,
        "unsafe": true,
        "unsafe_arrows": false,
        "unsafe_comps": false,
        "unsafe_Function": false,
        "unsafe_math": false,
        "unsafe_symbols": false,
        "unsafe_methods": false,
        "unsafe_proto": false,
        "unsafe_regexp": false,
        "unsafe_undefined": false,
        "unused": true,
        "const_to_let": true,
        "pristine_globals": true,
        "passes": 999
      },
      "mangle": false,
      "inlineSourcesContent": false
    },
    "loose": false
  },
  "minify": false,
  "isModule": true,
  "module": {
    "type": "es6"
  },
}

Playground link (or link to the minimal reproduction)

https://play.swc.rs/?version=1.10.1&code=H4sIAAAAAAAAA5WQT0vEMBDF7%2FspHivsJkXs3bLe9uwieBIp2XS2RmJa8kfE0u%2FutFHpIihewmTmzbzfjBASuxsMK2CdAiFEb3RcV%2FzXVoWAvaUXchEDxu%2FcoTMufhXoLZJrFkKWgeeoaDRMgx22%2FaTfVnNBd449ko6dF%2FrUyk89d6SevJBZNXmNK37KEq%2FKQz8pH2vKFoFnlsVFXR%2Fu7%2FZ1XZS4PT6TjlcnT%2FROYsh9S8rrs1%2Buj%2BzF0d%2FjRVkgOb5Ogz554o17TyGYzqHzmRsM4ZK12GwgftLgd5hRyswyHweeWhMieXW0NMH81%2F8hH%2Fpsp8tFrrepNW5OPU7GoxSS4%2BoDVgwMRAwCAAA%3D&config=H4sIAAAAAAAAA32Vy64aMQxA9%2F0KNOu7qO6iEt1Wqrrpqh8QhcQZQvNS7HBBV%2Fx7PQ%2FoAB52jI%2FfNs7nl82mO6Dpvm8%2B%2BSd%2FFF0R6u2bJXhOpE8s6cBEjab6Qt3blR5wQE4HhFF0mUhHuvZAoxW%2Bf31%2Fny06OBHUpMMvCAUqsgLVBlejqhO6XOMyfgVtaCFgkYUjhFwiJLpzMOm3RD7CEFo3ylGTN92ML3c5Rp%2B8Oy9jmRxLBcT7cFxKG2LhtdK3Jav5A5%2Bz2OUcgKtZJ0qj8omgn9rw6NjkEHRBUEddBS9Dprp6zFKIATYCq0rNReTJevKZ5yBQC9oqky0IyFcw5I8gmXEsNkvI5Qn1jNjCrvX9uF8P1nDUoWkSYsJpHAlnK3jdZ4%2BkXEtSCye40oMJzs19tPROVaBW07PdIfu0MpO%2FANyBoBGTjiD5HTUc79OatXtp6ZPjlaWzwEMWq0zQc1OV907o7NAZqOSlaVawzcDQWSOlM%2BOV9qG3oMA53hXBNX54MnspKJ0LZCcAnq%2BWKpjk6vYnfExk5sP%2F4QX%2ByUWSvF%2BzBh%2BR%2FTrFc9zl8CJABNpn%2B0KBJ0F5HVc%2BEqeyzluywJsBVlRpOILnG8D7T1kFEI5o4dNC7FH1Ie%2FEK1F4zccZbrfb63W9vQpRp%2F75CnQ%2BBfb5J7dqAH9kPn7jAX9%2BPXibERZklP%2B%2F1zevncff2bawXI0uXiXzkzZs1fQQfesmX5d%2Fv%2FQpRfgGAAA%3D

SWC Info output

No response

Expected behavior

should be minimized

Actual behavior

No response

Version

1.10.1

Additional context

No response

[kdy1]

Wow. It's an interesting edge case. I forgot that I implemented a rule to remove unused class declarations.

[kdy1]

Ah. It's removed because the class declaration is inlined. https://play.swc.rs/?version=1.10.6&code=H4sIAAAAAAAAA5WQQUvEMBCF7%2FsrHivsJkXs3bLe9uwieBIp3XR2jcS0TBIRl%2F53J61KFxHxEpKZl%2B%2B9GaU0Njc4LYBlCoQQ2Zq4rORtXBMCto5eyEecMHzXdp318atBb5F8OxOKDMJpojWwLTZY91m%2FrsaG6bx4JBM7VuZw1J96%2BZF6YqUnVfYaFnK8Ngzz1HCsaeIHAd7un8nEqwMTvZPKgHmi67NXBgn0N1RZXNT17v5uW9dFqcoCycsaWvSJSUbrmUKwnUfHU0AUJXxyDqsV1M8cfybRU5ZxC2A62hCJm72jHOa%2F%2Fg%2FTRs9mupzVepeO1o%2Blx2w8aKXlXn0AFEZ1VfUBAAA%3D&config=H4sIAAAAAAAAA32Vy64aMQxA9%2F0KNOu7qO6iEt1Wqrrpqh8QhcQZQvNS7HBBV%2Fx7PQ%2FoAB52jI%2FfNs7nl82mO6Dpvm8%2B%2BSd%2FFF0R6u2bJXhOpE8s6cBEjab6Qt3blR5wQE4HhFF0mUhHuvZAoxW%2Bf31%2Fny06OBHUpMMvCAUqsgLVBlejqhO6XOMyfgVtaCFgkYUjhFwiJLpzMOm3RD7CEFo3ylGTN92ML3c5Rp%2B8Oy9jmRxLBcT7cFxKG2LhtdK3Jav5A5%2Bz2OUcgKtZJ0qj8omgn9rw6NjkEHRBUEddBS9Dprp6zFKIATYCq0rNReTJevKZ5yBQC9oqky0IyFcw5I8gmXEsNkvI5Qn1jNjCrvX9uF8P1nDUoWkSYsJpHAlnK3jdZ4%2BkXEtSCye40oMJzs19tPROVaBW07PdIfu0MpO%2FANyBoBGTjiD5HTUc79OatXtp6ZPjlaWzwEMWq0zQc1OV907o7NAZqOSlaVawzcDQWSOlM%2BOV9qG3oMA53hXBNX54MnspKJ0LZCcAnq%2BWKpjk6vYnfExk5sP%2F4QX%2ByUWSvF%2BzBh%2BR%2FTrFc9zl8CJABNpn%2B0KBJ0F5HVc%2BEqeyzluywJsBVlRpOILnG8D7T1kFEI5o4dNC7FH1Ie%2FEK1F4zccZbrfb63W9vQpRp%2F75CnQ%2BBfb5J7dqAH9kPn7jAX9%2BPXibERZklP%2B%2F1zevncff2bawXI0uXiXzkzZs1fQQfesmX5d%2Fv%2FQpRfgGAAA%3D

[JSerFeng]

Thank you !