Leading semicolon removed from next line when transforming TypeScript

[srmagura]

TypeScript code:

const actions = {}

type X = number

;(window as any).actions = actions

Sucrase output:

"use strict";const actions = {}



(window ).actions = actions

Playground link

The JS generated by Sucrase will error because there is no semicolon before (window). The JS parser interprets this code as a function call: {}(window) which will explode because {} is not a function.