Swift compiler bug when calling a function with default parameter values via a constant/variable reference

Originator:ullrich.schaefer
Number:rdar://18041799 Date Originated:16-Aug-2014 11:24 PM
Status:Open Resolved:
Product:Developer Tools Product Version:6.0 (6A279r)
Classification:Serious Bug Reproducible:Always
 
Summary:
Having a const (`let`) point to a function and calling that function should work. It doesn't work though when said function has a default value for one of its parameters.

Same situation with normal functions and class methods
Example: https://gist.github.com/stigi/336a9851cd80fdef22ed

Steps to Reproduce:
1. Create a function `foo` with a parameter and supply a default value for that parameter
2. Create a constant pointing to that function like so `let bar = foo`
3. Add a call to `foo`
4. Build and run
5. Add a call to `bar`
(6. Build and run)

Expected Results:
Calling `bar` has the same effect as calling `foo`.

Actual Results:
Adding the call to `bar` crashes SourceKitService and prevents the project from building.

Version:
Xcode Version 6.0 (6A279r)

Notes:
Happens for normal functions, class functions. Also happens when not using a constant to point to `foo`, but a variable.

Configuration:


Attachments:

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