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[bug] statements not allowed in front of super() call #31925

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@trusktr

Description

@trusktr

TypeScript Version: 3.5.2

Search Terms:

Code

            constructor(options = {}) {
                console.log('hello')
                super(options)
            }

Expected behavior:

It should work. It's valid JavaScript.

Run the following in Chrome console (or one that support class fields):

class A {
	foo = 'foo'
	constructor() {
		this.foo = 'bar'
	}
}

class B extends A {
	bar = 'bar'
	constructor() {
		console.log('hello')
		super()
		this.bar = 'foo'
	}
}

new B()

Actual behavior:

It complains:

A 'super' call must be the first statement in the constructor when a class contains initialized properties or has parameter properties.

Playground Link:

playground link

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