Quarrel | Discord client for Windows and Xbox that aims to bring | Runtime Evironment library
kandi X-RAY | Quarrel Summary
kandi X-RAY | Quarrel Summary
A discord client for the Universal Windows Platform. Store link:
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Quarrel
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QUESTION
My erroneous code snippet and compiler error info:
...ANSWER
Answered 2022-Feb-03 at 06:49Change happens on the heap , while reference is only relevant to the stack, they do not interrelate.
That does not matter, because the type system doesn't work with that "depth" of information.
As far as it's concerned, borrowing x
is borrowing the entirety of x
up to any depth, and so any change anywhere inside x
is forbidden.
For type checking purposes, this is no different than if x
were a Box<_>>
, and r
were be actively used for iteration, leading any update to the inner vector to possibly invalidate the iterator.
(also type-wise *x = 8
does require first taking a unique reference to the box itself, before "upgrading" it to a unique reference to the box' content, as you can see from the trait implementation)
QUESTION
I'm totally new to Swift. I need to traverse an array, and based on what the data is, build out a custom tree structure. I would share my code but it's too bulky and too horrible to be seen in public. It's not even close to working. So here's some pseudocode instead:
...ANSWER
Answered 2021-Nov-17 at 07:40As I mentioned in the comments, I think this is more of a data organization/sorting issue than a SwiftUI layout issue. If you data is grouped and sorted correctly, the layout becomes more trivial (eg you don't have to try to decide whether to break a line because of a new channel).
In the following example, I spend the bulk of the code grouping and sorting the data. Then, the layout itself is relatively simple.
It's important to note that I do a couple of unsafe things here for brevity, like using first!
that you would want to test for or have contingencies for in real code.
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