Airspeed Velocity
Gianni Gianino
@AirspeedSwift what app did you use to make that diagram?
Arrays, Linked Lists and Performance http://airspeedvelocity.net/2015/08/03/arrays-linked-lists-and-performance …pic.twitter.com/M712HG3RQb
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@giannigdev I used Omni Graph Sketcher which I like as it’s very quick to put things together.https://github.com/graphsketcher/GraphSketcher …
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@AirspeedSwift Swift's parameter convention is callee-release, so isUniquelyRefd can work inside +. It'd only succeed if + is the last use. -
@AirspeedSwift That optimization could lead to optimizer-dependent algorithmic complexity though, sorta like TCO. -
@jckarter@AirspeedSwift interestingly, TCO annotations are a thing in e.g. Scala 2.8; and uniqueness typing seems to cover this? - View other replies
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@jckarter@AirspeedSwift (Not that that’s going to be easy to staple on or something, but I like the idea of lifting this into types.) -
@rob_rix@AirspeedSwift I think there's an affinity. ARC opt is a lot like a borrow checker that fixes every error with "retain" or "clone"
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@AirspeedSwift I feel this is on the compiler, though — it should have a better idea of scoping than just isUniquelyReferenced -
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@AirspeedSwift guess I(gladly) caused this. It's an ARC opt issue instead of + opt. Essentially, the question is:https://gist.github.com/an0/b4b6ca8d2d1c00c93a64 … -
@airspeedswift since I love your posts: please don’t just connect the dots in your graphs. Use a proper fit: you have a model⇒show it holds! -
@AirspeedSwift so not only does liberal use of reduce make the engineer look like a wanker, it also is crazy slow >.< -
@AirspeedSwift Your first two code examples are the same. I think the second was supposed to use a mutable array? -
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@AirspeedSwift beware the ides of functional programming - Show more
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@AirspeedSwift@chriseidhof immutable lists are only good at prepend, and at expressing loops -
@AirspeedSwift@chriseidhof arrays better at enum/indexing/big append. lists better at splice,mid-insert,mid-del,small prepend/append -
@AirspeedSwift doesn't look like `mapUsingFor` does.
Joe Groff
Rob Rix
Samuel Giddins
an0
Daniel
Jacob Schwartz
Jack Lawrence
Sam Noble
Eyal Lotem
Zak Remer
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