ConditionForeground.swift

extension View {
    /// Workaround .foregroundColor(nil) not inherit from outter view bug
    ///
    /// ```
    /// ZStack {
    ///     Image(systemName: "star.fill")
    ///         .conditional(foregroundColor: Int.random(in: 1...5) < 2 ? .green : nil)
    /// }
    /// .foregroundColor(.red)
    /// ```
    ///
    /// - Parameter foregroundColor: a new color or nil to inherit from outter view
    /// - Returns: a modified view
    @warn_unqualified_access
    @ViewBuilder
    func conditional(foregroundColor: Color?) -> some View {
        if foregroundColor != nil {
            self.foregroundColor(foregroundColor)
        } else {
            self
        }
    }
}