Arrow function syntax broken

[yuezk]

The reproducible code:

const checkHightlighting = check(({
  sixthVariable = `create ${myVariable}`
}) => {
  return 'hello, world';
});

[Vanuan]

This appears to be an issue of parameter destructuring where default value contains typescriptBraces.

[Vanuan]

[Vanuan]

[jeffvandyke]

Here's another case that fails for me, seems ternary related though:

var thing = {
    objectKey: (param) =>
        param.field === 'String' ? `${inTemplate}` : param.field ?? null,
    stringProp: true,
},

Interestingly, it works ok with javascript syntax (whichever one vim-polyglot provides)
With either typescript or typescriptreact syntax type (shared in common I believe), it renders as such: