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<jkyle>
I'm writing a test for yaml syntax. Basically, I"m just running yaml.load and catching exceptions
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<jkyle>
problem is, in irb this yaml does not throw an exception for me (or in my tests). Am I missing something about how yaml.load works? (http://tinyurl.com/lw5s9fa)
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<jkyle>
oh shizzle
* jkyle
bonks his head
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<mpolichette>
hey I'm having a ton of trouble with the ruby install on my mac, I'd love the help if anyone could offer some
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<mpolichette>
or if this is the wrong room for such, let me know
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<whitequark>
yorickpeterse: pong
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<yorickpeterse>
whitequark: so I was reading through the LLVM lang ref and it mentions unwind and capture attributes. I see these being used in several examples but it's not entirely clear to me when one should use them, or what they exactly do.
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<whitequark>
you don't probably need them
<whitequark>
if you leave out capture/nocapture, nothing bad happens, and LLVM can infer them automatically
<whitequark>
unwind is for exception handling, and you probably don't have that and don't want to touch it with a five-meter stick
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<yorickpeterse>
Ah, the docs are a bit vague on this
<yorickpeterse>
"Use unwind if your function returns an unwind value or exception" (something like that): wat
<whitequark>
>This function attribute indicates that the function never returns with an unwind or exceptional control flow. If the function does unwind, its runtime behavior is undefined.
<yorickpeterse>
yeah but what the f is unwind in this case
<whitequark>
unwind = raise
<yorickpeterse>
wat
<yorickpeterse>
so tl;dr: "unwind means function X never raises"
<whitequark>
nounwind.
<yorickpeterse>
errr yeah
<yorickpeterse>
Haven't had my tea yet and I'm already on a train :<
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<whitequark>
well, it's actually raise or longjmp (or any other causes for unwinding, but I don't encountered any others)
<whitequark>
also yes, if you longjmp out of a C++ function, destructors do run
<yorickpeterse>
So basically you'd set this for most C functions, since those typically don't raise anything
<whitequark>
only if they never call any function which can raise, i.e. C++ ones.
<yorickpeterse>
hmm
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<yorickpeterse>
Ok last one: nocapture, I think I get what it does but the choice of wording might be putting me off
<yorickpeterse>
"This indicates that the callee does not make any copies of the pointer that outlive the callee itself. This is not a valid attribute for return values."
<yorickpeterse>
especially since you can apparently also use it on values
<whitequark>
uh, LLVM isn't going to babysit you
<yorickpeterse>
hm?
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<whitequark>
well, if you attach it to non-pointer, it's your problem. it also should be a verification error, but that sometimes doesn't happen
<canton7>
only allow ssh access as another user, then su to root straight away on login if you're that bothered...
<ndrst>
yorickpeterse: is hackin away over there
<ndrst>
well. lock the root account and only use sudo.
<canton7>
sometimes having a root console is dead handy... but yeah. Either's better than allowing root ssh
<ndrst>
canton7: mhhh. sure it is but you still can run a sudo -i
<andrewvos>
canton7: Digitalocean sets you up with root by default :/
<ndrst>
there is no valid reason (for me) to have an unlocked root account
<rue>
Obvious solution
<andrewvos>
rue: still writing ruby?
<canton7>
ndrst, tbh I'd rather have to enter yet another password to get root. Especially as I'm the only person on my box
<rue>
andrewvos: No, not really
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<ndrst>
canton7: aeh. whats wrong with sudo?
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<ndrst>
thats exactly done there for this purposes
<ndrst>
there is not valid reason to be root.
<ledestin>
sudo vi pretty much defies purpose
<ledestin>
I can run anything from vi
<ledestin>
then it's allowing sudo bash
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<maloik>
man, baruco is pretty damn awesome
<maloik>
just finished the first day of talks and already stoked to get coding
<yorickpeterse>
ndrst: waaaaait, what
<yorickpeterse>
whitequark: who do I need to club with a trout to get ruby-llvm for LLVM 3.3 out of the door?
<yorickpeterse>
latest beta is for LLVM 3.2
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<whitequark>
yorickpeterse: use master
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<whitequark>
I'm technically the maintainer but given that right now, I need to maintain a fork of LLVM *and* *THREE* layers of bindings for various stuff in it
<whitequark>
I'm less than inclined to fuck with two more layers of this shit
<whitequark>
I'll prolly release it in early Oct
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<whitequark>
oh and I need to get gem release rights first, anyway
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<jkyle>
is there a way to check ruby syntax on files programmatically instead of via ruby -c foo.rb?
<whitequark>
jkyle: gem install parser
<jkyle>
bacon
<jkyle>
thanks!
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<yorickpeterse>
whitequark: happy to help if needed
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<whitequark>
yorickpeterse: well, first off, confirm that ruby-llvm works for you
<whitequark>
there have been mixed reports
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<yorickpeterse>
k
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<yorickpeterse>
what the, this Rakefile of ruby-llvm is bonkers
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<yorickpeterse>
riiiiiight, first have to run rake from the ext/llvm-blabla dir
<yorickpeterse>
I smell cruft
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