Libraries in TouchDevelop

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touchdevelop
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ongoing research
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advanced topics in touchdevelop
active research
project
o
5 researchers
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•
•
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•
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Nikolai Tillmann
Michał Moskal
Peli de Halleux
Manuel Fahndrich
Sebastian Burckhardt
in 2011:
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2 PhD interns
2 highschool interns
advanced topics in touchdevelop
cloud state
o
When distributed clients query or update shared data, eventual
consistency can provide better availability than strong consistency
models. However, programming and implementing such systems
can be difficult unless we establish a reasonable consistency model,
i.e. some minimal guarantees that programmers can understand and
systems can provide effectively.
To this end, we propose a novel consistency model based on
eventually consistent transactions.
✿ http://research.microsoft.com/apps/pubs/default.aspx?id=155638
Eventually Consistent Transactions
Sebastian Burckhardt, Manuel Fahndrich, Daan Leijen, and Mooly
Sagiv
advanced topics in touchdevelop
cloud plugins
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callbacks from touchdevelop.com
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to your webservice
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register your own URL to receive notifications
about new publications
plugins (meta apps) – integrate in app
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your webservice annotates AST
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your webservice generate traces (test cases)
advanced topics in touchdevelop
splitting
execution
some event handlers don’t depend on
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phone state
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“when MSFT stock price > 30, then …”
automatically split code
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some parts execute on phone
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other parts in cloud
advanced topics in touchdevelop
program your
house
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o
imagine all of your devices are connected to
your WiFi
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your TV
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your fridge (temperature, inventory)
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your wine cellar (temperature, inventory)
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your barbecue (temperature, inventory)
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your sprinkler system in the garden
your scripts access everything
advanced topics in touchdevelop
debugging
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how to debug code
on a touchscreen?
advanced topics in touchdevelop
custom UI
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how to design a touchscreen UIs
on a touchscreen?
advanced topics in touchdevelop

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