errorp = Pointer.new_with_type("@")
result = NSXMLDocument.alloc.initWithData(data,
options:NSXMLDocumentValidate, error:errorp)
# access error
errorp[0]
On 26 Apr 2009, at 16:36, Alex Vollmer wrote:
Is it possible to use "out" parameters with MacRuby, such as
NSError? In my particular case I'd like to capture errors that
result from parsing XML with NSXMLDocument using the
initWithData:options:error: method. I tried (naively) just
instantiating an NSError instance and handing it to that method, but
ended up with this:
irb(main):037:0> e = NSError.new
=> #<NSError:0x80067cc40>
irb(main):038:0> doc = NSXMLDocument.alloc.initWithData(data,
options:NSXMLDocumentValidate, error:e)
ArgumentError: can't convert Ruby object `#<NSError:0x80067cc40>' to
Objective-C value of type `^@'
from (irb):38:in `initWithData:options:error:'
from (irb):38
from /usr/local/bin/macirb:12:in `<main>'
Any help or insight is appreciated.
Cheers,
Alex
----
Musings & Notes — http://alexvollmer.com
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