Brian Gerstle bgerstle
bgerstle
/ exhaustive_enum.rb
Last active
April 25, 2019 17:03
Proof of concept for an exhaustive enum micro-lib in Ruby
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| module ExhaustiveEnum | |
| def self.included(base) | |
| base.extend(ClassMethods) | |
| end | |
| module ClassMethods | |
| def switch(value, &block) | |
| matcher = ExhaustiveMatcher.new(self) | |
| matcher.match(value, &block) | |
| end |
bgerstle
/ ManualGenComposition.swift
Last active
June 18, 2016 18:33
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| Gen(unGen: { r, n in | |
| let splitGen: () -> StdGen = { | |
| var g: StdGen = r.split.0 | |
| return { | |
| g = g.split.0 | |
| return g | |
| } | |
| }() | |
| let Foo = Foo() |
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| // a bunch of requires & tiny helper fns... | |
| function directoriesAtPath(path) { | |
| return fs.readdir(dir) | |
| .then(fp.map(appendToParentDir)) | |
| .then(zipPathsWithStats) | |
| .then(mapWithoutNil(pathIfTupleIsDirectory)); | |
| }; |
bgerstle
/ location.swift
Created
February 29, 2016 17:38
TIL: Locations don't pass NSCoding round trip (location != itself when written/read from disk)
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| import Foundation | |
| import CoreLocation | |
| let l = CLLocation(latitude: 0, longitude: 0) | |
| let data = NSKeyedArchiver.archivedDataWithRootObject(l) | |
| let lprime = NSKeyedUnarchiver.unarchiveObjectWithData(data) as! CLLocation | |
| l == lprime | |
| // $R0: Bool = false | |
| l.description | |
| // $R2: String = "<+0.00000000,+0.00000000> +/- 0.00m (speed -1.00 mps / course -1.00) @ 2/29/16, 12:34:25 PM Eastern Standard Time" | |
| lprime.description |
bgerstle
/ App Thinning Report.txt
Created
February 26, 2016 14:49
App Thinning Report for Wikipedia iOS app when exported for iPhone 6
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| App Thinning Size Report for All Variants of Wikipedia | |
| Variant: Wikipedia-iPhone 6.ipa | |
| Supported devices: iPhone 6 | |
| App + On Demand Resources size: 7 MB compressed, 18.1 MB uncompressed | |
| App size: 7 MB compressed, 18.1 MB uncompressed | |
| On Demand Resources size: Zero KB compressed, Zero KB uncompressed |
bgerstle
/ DeadlockTest.swift
Last active
February 23, 2016 20:11
Test for reproducing a deadlock between "cancel" and "connectionDidFinishLoading"
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| func testSDWebImageDownloaderOperationThreadSafety() { | |
| NSURLProtocol.registerClass(WMFHTTPHangingProtocol) | |
| defer { | |
| NSURLProtocol.unregisterClass(WMFHTTPHangingProtocol) | |
| } | |
| [0...1000].forEach { _ in | |
| let downloadOperation = SDWebImageDownloaderOperation( | |
| request: NSURLRequest(URL: NSURL(string: "https://test.org/foo")!), | |
| options: [], |
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| - (int)exampleA { | |
| if (foo) { | |
| return 1; | |
| } | |
| // no man's land for side effects | |
| if (bar) { | |
| return 2; | |
| } |
bgerstle
/ ViewControllerProtocolExtensionExample.swift
Created
November 12, 2015 16:41
Demonstrating protocol extensions on UIViewController.
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| import UIKit | |
| public protocol CellContainer { | |
| var visibleCells: [NSIndexPath] { get } | |
| } | |
| public protocol CollectionViewContainer { | |
| var collectionView: UICollectionView? { get } | |
| } |
bgerstle
/ recent_swipe_delete_trace
Created
October 13, 2015 22:22
Crash when deleted a recent article by swiping.
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| 2015-10-13 18:20:28.865 Wikipedia Debug[976:36527763] *** Assertion failure in -[UICollectionView _endItemAnimationsWithInvalidationContext:tentativelyForReordering:], /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit_Sim/UIKit-3505.16/UICollectionView.m:3936 | |
| 2015-10-13 18:20:28.879 Wikipedia Debug[976:36527763] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'attempt to delete and reload the same index path (<NSIndexPath: 0xc000000000000016> {length = 2, path = 0 - 0})' | |
| *** First throw call stack: | |
| ( | |
| 0 CoreFoundation 0x000000010b694f65 __exceptionPreprocess + 165 | |
| 1 libobjc.A.dylib 0x000000010b10edeb objc_exception_throw + 48 | |
| 2 CoreFoundation 0x000000010b694dca +[NSException raise:format:arguments:] + 106 | |
| 3 Foundation 0x0000000108851ae2 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 198 | |
| 4 UIKit 0x0000 |
bgerstle
/ example_ignore
Last active
September 19, 2015 21:05
Wikipedia-iOS ignored file patterns setting in CodeCov
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| # Generic | |
| Pods/.* | |
| Applications/Xcode.app/.* | |
| vendor/.* | |
| Carthage/.* | |
| build/.* | |
| .*Tests.m | |
| .*Tests.swift | |
| # Wikipedia-specific test folders | |
| # We filter the entire folder to exclude coverage of test utility code |
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