Swift 2b2: Compile error when protocol extension implements default static var

Originator:amber
Number:rdar://21550415 Date Originated:25-Jun-2015 02:59 PM
Status:Open Resolved:
Product:Developer Tools Product Version:Swift 2, b2
Classification:Crash/Hang/Data Loss Reproducible:Always
 
Summary:
When creating a protocol extension that implements a required static var, command failed due to signal: Illegal instruction: 4

Steps to Reproduce:

protocol MyProtocol {
    static var name: String { get }
    static func getName() -> String
}

extension MyProtocol {
    
     static var name: String {
        return "Jonny Crash"
    }
    
    static func getName() -> String {
        return "Jonathan B. Good"
    }
}

struct MyTestStruct: MyProtocol {
    var age: Int {
        return 21
    }
}

// This is okay
print(MyTestStruct.getName())

// This fails
print(MyTestStruct.name)

Expected Results:
Expect to build, or give error stating this is not supported.

Actual Results:
TYPE MISMATCH IN ARGUMENT 0 OF APPLY AT expression at [/Users/Corey/Desktop/Test/Test/main.swift:15:7 - line:15:20] RangeText="MyTestStruct.n"
  argument value:   %14 = metatype $@thin MyTestStruct.Type
  parameter type: @thick MyTestStruct.Type
Stack dump:

Regression:
N/A

Notes:
N/A

Comments


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