382548 - Round-trip paren change with hoisting

Status: RESOLVED WORKSFORME

(Core :: JavaScript Engine, defect)

Description

[Jesse Ruderman]

js> f = function() { for(let x = ((x.(/a/)) + (x += 1)) in []) {} }
function () {
    (x.(/a/)) + (x += 1);
    for (let x in []) {
    }
}

js> eval("(" + f + ")")
function () {
    x.(/a/) + (x += 1);
    for (let x in []) {
    }
}

Comment 1

[Ryan VanderMeulen [:RyanVM]]

js> f = function() { for(let x = ((x.(/a/)) + (x += 1)) in []) {} }
typein:18: SyntaxError: for-in loop let declaration may not have an initializer:
typein:18: f = function() { for(let x = ((x.(/a/)) + (x += 1)) in []) {} }
typein:18: .........................^

Comment 2

[Jesse Ruderman]

Cool, I guess this case of hoisting is gone. And if I use "var" instead of "let", I get something stable. WFM :)