Before You File a Proposal Please Confirm You Have Done The Following...

• I have searched for related issues and found none that match my proposal.
• I have searched the current rule list and found no rules that match my proposal.
• I have read the FAQ and my problem is not listed.

Relevant Package

parser

My proposal is suitable for this project

• I believe my proposal would be useful to the broader TypeScript community (meaning it is not a niche proposal).

Description

These expressions should be invalid.

1 ++;

(1)++;
(1)--;

++(1);
--(1);

(1 + 2)++;
(1 + 2)--;

++(1 + 2);
--(1 + 2);

(x + x)++;
(x + x)--;

++(x + x);
--(x + x);