1778607 - Syntax Error "reference to undeclared private field or method" showing incorrectly

Status: RESOLVED DUPLICATE of bug 1770609

(Core :: JavaScript Engine, defect)

Description

[joebodletv247]

Attachment: app2.js

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:101.0) Gecko/20100101 Firefox/101.0

Steps to reproduce:

Create script with 2 simple classes:

class A
{
#MethodA () {}
}

class B
{
MethodA (){}

MethodB (){
    this.#MethodA ();
}

}

Run in browser

Actual results:

Uncaught SyntaxError: reference to undeclared private field or method #MethodA app2.js:3:4

Take note of the line, 3

This is the incorrect line to show the error for.

Expected results:

The error is actually on line 11, trying to call private method "#MethodA" which doesn't exist due to a typo on line 8 (missing #).

Line 3 is valid, line 11 is invalid.

Comment 1

[Matthew Gaudet (he/him) [:mgaudet]]

I believe this is a dupe of Bug 1770609, and is fixed as of Firefox 102; if you could confirm with the latest release.