wireapp/die

Name: die

Owner: Wire Swiss GmbH

Description: ?-framework to exit swift scripts

Forked from: daehn/die

Created: 2017-10-09 08:36:28.0

Updated: 2017-10-09 08:36:29.0

Pushed: 2018-04-12 13:37:31.0

Homepage:

Size: 1400

Language: Swift

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README

Die, ?-framework to exit swift scripts

Usage

Calling die() or die("Oh no!") prints the name of the file, the location of the error and the optional message and calls exit(EXIT_FAILURE) afterwards. There also are multiple convenience functions to work with throwing functions:

nThrow {
try maybeThrowingFunction(["Please", "don't", "throw"])

Or using the message parameter to supply a failure reason:

nThrow("Failed to compute the answer") {
guard someValue == 42 else { throw SomeError }

And for working with throwing functions and using the result:

contents = dieOnThrow("Unable to get the contents of \(someURL)") {
let contents = try fm.contentsOfDirectoryAtURL(someURL, includingPropertiesForKeys: nil, options: [])
// Do more stuff...
return contents

Additionaly there are functions to die in case an expression evaluates to nil, or not to nil:

result = dieIfNil(someObject.methodThatMightReturnNil())
fNotNil(someObject.methodThatReturnsAnError())

As well as for true or false:

fFalse(fm.isDeletableFileAtPath(sourcePath))

nThrow("Failed to delete \(sourcePath)") {
try fm.removeItemAtPath(sourcePath)


fTrue(fm.fileExistsAtURL(sourceURL))

Installation

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