Swift4xcode9changes

[massimobio]

As @drumnkyle anticipated, not much needed change for Swift 4 🎉

[codecov[bot]]

Codecov Report

Merging #131 into master will not change coverage. The diff coverage is 80%.

@@           Coverage Diff           @@
##           master     #131   +/-   ##
=======================================
  Coverage   97.48%   97.48%           
=======================================
  Files          32       32           
  Lines        5809     5809           
=======================================
  Hits         5663     5663           
  Misses        146      146

Impacted Files	Coverage Δ
Sources/Tuplet.swift	91.98% <100%> (ø)	:arrow_up:
Sources/ImmutableMeasure.swift	95% <100%> (ø)	:arrow_up:
Tests/MusicNotationCoreTests/TestHelpers.swift	94.44% <66.66%> (ø)	:arrow_up:

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[drumnkyle]

I was thinking we should go right to Xcode 10.

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[massimobio]

I though so too, but with a quick look it seemed to me that Travis only supports up to Xcode 9. Not that we are using Travis to its full potential right now 😂

[drumnkyle]

Yeah. We should take a task to use a lot more of Travis. Ok, let’s just go for this for now then. Thanks! I’ll take a look at it thoroughly in a little bit.

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