Xcode-beta (7A152u): Computed properties cannot throw

Number:rdar://21820924 Date Originated:14-Jul-2015 01:54 PM
Status:Open Resolved:
Product:Developer Tools Product Version:Xcode-beta (7A152u)
Classification:Other Bug Reproducible:Always
I want some computed properties in Swift that can throw, however, that doesn’t seem possible.

    func g(value: Int) throws -> Int { return value }

    struct F {
        var id: Int {
            get { try g(0) }  // error, cannot throw

I’ve found no way to mark this property as “throwable”.

I expect to be able to to this:

    var id: Int throws {
        get { try g(0) }


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