PropertyDefinition wrongly parsed

[fisker]

class A {
  ["1"] = ()=>{}
  ["2"] = 3;
};

It should be parsed as two PropertyDefinition.

class A {
  ["1"] = ()=>{}["2"] = 3;
          ^^^^^^^^^^^      MemberExpression
          ^^^^^^^^^^^^^^^^ AssignmentExpression
};

[fisker]

()=>{}
[a]=b

This should be the same problem.

[fisker]

@3cp I'm still not familiar with the parse logic, can you take a look when you have time?

[3cp]

Sure.

[3cp]

My fix doesn't match spec.

It's not simple.

class MyClass {
  a = 1
  [b] = 2
}

This should be parsed as one field definition for "a", but the code will fail to run when new MyClass() is executed at runtime, not parsing time.

My fix wrongly parses the code as two field definitions.

[fisker]

I guess the problem here is that "unparenthesized arrow function" can't start member expression. See this case #475 (comment) (note that, it's not inside class)