Round specific corners of a view/shape

View+CornerRadius.swift

extension View {
    
    /// Clips this view to its bounding frame, with the specified corner radius for the given corners.
    ///
    /// By default, a view's bounding frame only affects its layout, so any
    /// content that extends beyond the edges of the frame remains visible. Use
    /// `cornerRadius(_:corners:)` to hide any content that extends beyond
    /// these edges while applying a corner radius.
    ///
    /// - Returns: A view that clips this view to its bounding frame with the
    ///   specified corner radius applied to the given corners.
    @warn_unqualified_access
    @ViewBuilder
    func cornerRadius(_ radius: CGFloat, corners: UIRectCorner) -> some View {
        clipShape(ConfigurableRoundedRectangle(radius: radius, corners: corners))
    }
}

struct ConfigurableRoundedRectangle: Shape {

    let radius: CGFloat
    let corners: UIRectCorner

    func path(in rect: CGRect) -> Path {
        let path = UIBezierPath(
            roundedRect: rect,
            byRoundingCorners: corners,
            cornerRadii: CGSize(width: radius, height: radius)
        )
        return Path(path.cgPath)
    }
}