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SwiftVersionError.swift
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SwiftVersionError.swift
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import Foundation
internal enum SwiftVersionError: Error, Equatable {
/// An error in determining the local Swift version
case unknownLocalSwiftVersion
/// An error in determining the framework Swift version
case unknownFrameworkSwiftVersion(message: String)
/// The framework binary is not compatible with the local Swift version.
case incompatibleFrameworkSwiftVersions(local: String, framework: String)
}
extension SwiftVersionError: CustomStringConvertible {
var description: String {
switch self {
case .unknownLocalSwiftVersion:
return "Unable to determine local Swift version."
case let .unknownFrameworkSwiftVersion(message):
return "Unable to determine framework Swift version: \(message)"
case let .incompatibleFrameworkSwiftVersions(local, framework):
return "Incompatible Swift version - framework was built with \(framework) and the local version is \(local)."
}
}
}