addInitializer incorrectly throws if decorator throws

[lucacasonato]

Describe the bug

Calling addInitializer from a class decorator context throws if the decorator threw. As per spec this should not happen. Babel behaves correctly: https://babeljs.io/repl#?browsers=defaults%2C%20not%20ie%2011%2C%20not%20ie_mob%2011&build=&builtIns=false&corejs=3.21&spec=false&loose=false&code_lz=DYUwLgBAhgJjCSA7AlmZVjIF4gE4G4AoAMwFdEBjNAe0QhhAoAoB9AGgioA8BKCAbwhgAFrmoB3AdDhJU6TDlwQAvhAC8nMF3wrCYXAE8pFYFADOZiAEEpAAQYUIAWyZ9-qj5yhgKwgcsJCWAQUNAxsPCZXdQA-fx4iINBcMCYAIgAHczMQGDSeQiA&debug=false&forceAllTransforms=false&modules=false&shippedProposals=false&circleciRepo=&evaluate=true&fileSize=false&timeTravel=false&sourceType=module&lineWrap=true&presets=env%2Creact%2Cstage-2%2Ctypescript&prettier=false&targets=&version=7.24.7&externalPlugins=&assumptions=%7B%7D

Input code

let addInitializer;
function dec(_, ctx) { throw { addInitializer } = ctx; }
try { class A { @dec m() {} } } catch {}

addInitializer(() => {});

Config

{
  "jsc": {
    "parser": {
      "syntax": "typescript",
      "tsx": false,
      "decorators": true
    },
    "target": "es2022",
    "loose": false,
    "minify": {
      "compress": false,
      "mangle": false
    },
    "transform": {
      "legacyDecorator": false,
      "decoratorVersion": "2022-03"
    },
  },
  "module": {
    "type": "es6"
  },
  "minify": false,
  "isModule": true
}

Playground link (or link to the minimal reproduction)

https://play.swc.rs/?version=1.6.1&code=H4sIAAAAAAAAA1WMSwrEMAxD9z6FlinMDUKHdtlTlOBkaCBNIHGZT8ndx10WLSyhZ6UgcN4vOUp0Kf5CtfQ6MkssGT6wWR9g%2BQw4IVstb713HB3jRVh0kvrVnpNrDbO6SQewG33uuMROeNNAdN8wioxPLQZLfxsNdaCRAAAA&config=H4sIAAAAAAAAA3VQuwrDMAzc8xVBcwohhQ6du3btbhwluPiF5EBDyL%2FXzjuULkbSWXenG7I8hzdLuOdDLGPjBTHS1scJ9zaIT5xA6D2yJOUDFCsaOEGN0IzbrEbpSARHHKFAHU7AOOMQBLUYEh9yVVbVwgXaOcYzFxhlVdMf3UhnPCHzj6gRttXb%2FlmRhOXGkTkSaWyF7B%2Br1f9HvJBYOZsMJ7uX8go7%2B%2FSAcXU3aS8hpqDmA2%2Bwf1pv2XRA8XPdTDEVGeDHIymDMXI98WVjNn4BiKKsl6YBAAA%3D

SWC Info output

No response

Expected behavior

addInitializer does not throw.

Actual behavior

addInitializer throws.

Version

1.6.1

Additional context

This throws because SWC sets decorationState.[[Finished]] to true even if the decorator threw. This should not be the case - it should stay false.