collapse-preserve-inline and throw

[ainthek]

I'm using js-beautify 1.6.3 on OSX for CLI formatting, main reason, to be cosnsitent with editor formatting (Sublime).
I have noticed that there is difference even if using same settings.
After digging deeper I have found theta runnting js-beautyfy twice from CLI, will give me what I expect.
Digging deeper 'throws' seems to cause trouble

echo 'if (a == 1) { a++; }' | js-beautify -b collapse-preserve-inline

prints expected

if (a == 1) { a++; }

however

echo 'if (a == 1) { throw "aaa" }' | js-beautify -b collapse-preserve-inline

prints unexpected (nor collapsed nor expanded version)

if (a == 1) {
    throw "aaa" }

why ?

and now the funny part (double formatting):

echo 'if (a == 1) { throw "aaa" }' | js-beautify -b collapse-preserve-inline | js-beautify -b collapse-preserve-inline 

prints:

if (a == 1) {
    throw "aaa"
}

so it is unstable and formatting result depends on how many times you run formatter ?

Thanx for help

[bitwiseman]

Hello, excellent bug report and details. I've added this to the next milestone.

[bitwiseman]

Duplicate of #898