Oooh interesting! I hadn't considered calling back to the Obj-C version from Swift land...
On Wed, Feb 18, 2015 at 3:13 PM, Brion Vibber bvibber@wikimedia.org wrote:
It looks like it is possible to use the Obj-C version from Swift:
https://github.com/Masonry/Masonry/issues/75#issuecomment-55230720
so one could probably migrate UI classes using it bit by bit.
But the new all-Swift version in Snap apparently has a cleaner syntax that fits with Swift better...
Actually, do they conflict? Could we start with one in Obj-C and transition to the Swift one in Swift classes, while both sit in place? In theory they're creating regular layout constraints so it's just the setup calls that are different...
-- brion
On Wed, Feb 18, 2015 at 2:59 PM, Monte Hurd mhurd@wikimedia.org wrote:
I found this Swift version of Masonry: https://github.com/Masonry/Snap
Are we confident in it, or does anyone know if the original Masonry repo maintainers have Swift plans?
If not, assuming one of our long-term goals is to eventually convert as much of the codebase to Swift as is practical, wouldn't adopting Masonry further entrench Obj-C implementations?
i.e. to "Swift-ify" Masonry'ed code we'd have to decompose Masonry syntax back to VFL strings and/or NSLayoutConstraints.
If there's not a solid Swift implementation, I'd be unsure if Masonry use is wise strategically. Thoughts?
Any concern that Masonry's syntax, while concise/elegant, raises the bar for outside contributions in that it deviates from the "standard" approach at all?
On Wed, Feb 18, 2015 at 10:09 AM, Brian Gerstle bgerstle@wikimedia.org wrote:
+1
On Wed, Feb 18, 2015 at 12:32 PM, Corey Floyd cfloyd@wikimedia.org wrote:
We were evaluating Masonry prior to our new 3rd party lib vetting process (See here for more info: https://www.mediawiki.org/wiki/Wikimedia_Apps/Team/iOS/Third_Party_Libraries), but still wanted to do a write up for everyone.
Masonry is a library that allows developers to write autolayout code similar to the Visual Format Language, but instead of error prone strings to describe relationships, it provides a compact compiler checked syntax. You can read more here: https://github.com/Masonry/Masonry
Below are answers to our standard questions:
- Is the license permissive?
Yes - MIT
- Is the library ubiquitous?
Yes 4,362+ stars and 475 forks on Github.
- Is it installable via CocoaPods?
Yes
- What is the impact on binary size?
Negligible - no included assets
- How severe, if at all, are inbuilt subdependencies?
No 3rd party dependencies
- Will this make the code more, or less, understandable for
volunteers?
More understandable - it provides an expressive "english" syntax for creating autolayout constraints. It introduces no new concepts, just type checking and syntax.
- What are the performance ramifications of using this library?
None, it uses cocoa autolayout under the covers.
- What are the complexity ramifications of using this library?
Masonry allows developers to write layout code in a much more concise and expressive way - this should reduce number of lines while increasing expressiveness.
- Is it actively maintained?
Yes and receives frequent pull requests.
- Is it compatible with current deployment targets?
Yep
- Does it hinder interop (e.g., with Swift)?
Nope
- What is the exit plan if the library becomes unmaintained?
Since Masonry is basically just a syntax veneer of autolayout - it should be possible for us to maintain if needed. There aren't any foreign concepts to understand. If we choose not to maintain - the constraints can be translated to the VFL language (or Interface Builder) easily.
If anyone has questions / comments - please reply here.
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