Require lets you easily require Optional
values to be non-nil
, or crash gracefully.
Sometimes you have optional values in your code that are not really optional, and will cause your
application to enter an undefined state if nil
. Require makes it easy to avoid such states, by
causing a crash with rich debug information, to enable you to much easier hunt down & fix the bug.
Call require()
on any Optional
, optionally giving a hint
for debugging purposes:
class ConfigurationLoader {
func load() -> Configuration {
let data = readJSONFile().require(hint: "Verify that Config.JSON is valid")
let config: Configuration? = try? unbox(data: data)
return config.require()
}
}
Swift Package Manager:
Add .Package(url: "[email protected]:johnsundell/require.git", majorVersion: 1)
to your Package.swift
file.
CocoaPods:
Add pod "Require"
to your Podfile
.
Carthage:
Add github "johnsundell/require"
to your Cartfile
.
Manual:
Clone the repo and drag the file Require.swift
into your Xcode project.
- Open a PR if you want to make some change to Require.
- Contact @johnsundell on Twitter for discussions, news & announcements about Require.