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//===------------------ AddOn.swift - Swift Testing -----------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2021 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
/// An `AddOn` allows for extra code to be added to file to test what is compiled then.
/// The syntax is `//# <identifier>` where the `<identifier>` is replaced by some word.
/// (There must be exactly one space after the '#')
/// For example the line `var gazorp //# initGazorp = 17`
/// will normally be compiled as written. But if the `Step` includes `initGazorp` in its `addOns`
/// the line passed to the compiler will be `var gazorp = 17`
public struct AddOn {
/// The name of the `AddOn`. That is, the identifier in the above description.
public let name: String
init(named name: String) {
self.name = name
}
/// Adjust a string to reflect the effect of this `AddOn`.
func adjust(_ s: String) -> String {
s.replacingOccurrences(of: "//# \(name)", with: "")
}
}
extension Array where Element == AddOn {
func adjust(_ source: String) -> String {
reduce(source) {adjusted, addOn in addOn.adjust(adjusted)}
}
}
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