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List of issues#2114 compiler ignores parenthesis important for order of execution
Author: 
3plus4i
3plus4iDate created:
Type: question
Visibility: Everybody
Assigned to:
Labels: Decompilation
State: opened 
The compiler doesn't seem to be able to determine, whether parenthesis are important for
the order of execution in a chain of statements.
a || (b && c) && d && e && f
is not the same as
a || b && c && d && e && f
The specific line I was using is
if(this.autosaveTimer == 0 || (this.director.state == "pause" &&
this.director.menu.prevState == "dungeon") && this.director.player.tutorialState ==
"Ended" && dungeon != 5 && dungeon != 7)
I tried swapping the part in parenthesis with the first part, but that still gives a wrong
result, with the parenthesis removed. I'm pretty sure I have seen the parenthesis work in
other contexts, at least in numerical operations, but I'm not entirely sure.
> What version of the product are you using? Is it "nightly build"? Which operating system
do you have?
19.1.2 DEB package
> Please provide any additional information below. If the problem is related to a SWF
file, attach it here, otherwise we can't help you.
I don't think the specific file is of much relevance, but if it would be helpful, I can
provide it
Logical or operator || has lower precedence than logical and && operator.
This means
a || (b && c) && d && e && f
is equal to
a || (b && c && d && e && f)
and that is equal to
a || b && c && d && e && f
as && part is calculated calculated first.
if you want to make a || (b && c) first,
then you need to use parenthesis this way:
(a || (b && c)) && d && e && f
State: new→opened
Type: bug→question
Type: bug→question
I failed to reply yet that I was indeed confidently incorrect about precedence of || and
&&. It was the code that I wrote, that was faulty, not the compilation.