Hi,
today I came across some weird behavior of Factor... I can't explain it, so
here are the steps to reproduce it (you don't need to have MongoDB installed
- it's all 100% Factor).
USING: mongodb.driver mongodb.tuple mongodb.tuple.persistent fry literals ;
MDBTUPLE: person name age ;
person "persons" { } { $[ "ageIdx" [ "age" asc ] key-spec <tuple-index> ] }
define-persistent
person new "Alfred" >>name
dup tuple>selector
The expected would be a hashtable containing the following
H{ { "name" "Alfred" } }
but instead it returns
H{ { "_mfd" f } { "name" "Alfred" } { "age" f } { "_id" f } }
Now find the word write-field? in the Factor browser and set a breakpoint.
Run the whole thing again and simply step through until the end.
Voilà
H{ { "name" "Alfred" } }
The same effect happens if you change something in the
mongodb.tuple.persistent vocab and reload it.
Something seems to be wrong here or it's simply to hot outside for me to
think clearly (or I had too many beers already).
Sascha
PS: The functionality to filter out "f" fields is in the word write-field?.
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