Remove Console S generic by making ConsoleScreen trait alias

ctru-rs/examples/file-explorer.rs

@@ -6,7 +6,6 @@
 use ctru::applets::swkbd::{Button, SoftwareKeyboard};
 use ctru::prelude::*;
 
-use ctru::services::gfx::TopScreen;
 use std::fs::DirEntry;
 use std::os::horizon::fs::MetadataExt;
 use std::path::{Path, PathBuf};
@@ -27,7 +26,7 @@ struct FileExplorer<'a> {
     apt: &'a Apt,
     hid: &'a mut Hid,
     gfx: &'a Gfx,
-    console: Console<'a, TopScreen>,
+    console: Console<'a>,
     path: PathBuf,
     entries: Vec<DirEntry>,
     running: bool,

ctru-rs/examples/ir-user-circle-pad-pro.rs

@@ -1,7 +1,7 @@
 //! A demo of using the ir:USER service to connect to the Circle Pad Pro.
 
 use ctru::prelude::*;
-use ctru::services::gfx::{BottomScreen, Flush, Swap, TopScreen};
+use ctru::services::gfx::{Flush, Swap};
 use ctru::services::ir_user::{CirclePadProInputResponse, ConnectionStatus, IrDeviceId, IrUser};
 use ctru::services::srv::HandleExt;
 use ctru_sys::Handle;
@@ -62,8 +62,8 @@ fn main() {
 }
 
 struct CirclePadProDemo<'screen> {
-    top_console: Console<'screen, TopScreen>,
+    top_console: Console<'screen>,
-    bottom_console: Console<'screen, BottomScreen>,
+    bottom_console: Console<'screen>,
     ir_user: IrUser,
     connection_status_event: Handle,
     receive_packet_event: Handle,
@@ -75,10 +75,7 @@ enum ConnectionResult {
 }
 
 impl<'screen> CirclePadProDemo<'screen> {
-    fn new(
+    fn new(mut top_console: Console<'screen>, bottom_console: Console<'screen>) -> Self {
-        mut top_console: Console<'screen, TopScreen>,
-        bottom_console: Console<'screen, BottomScreen>,
-    ) -> Self {
         // Set up double buffering on top screen
         top_console.set_double_buffering(true);
         top_console.swap_buffers();

ctru-rs/src/console.rs

@@ -39,6 +39,10 @@ pub enum Dimension {
     Height,
 }
 
+/// A [`Screen`] that can be used as a target for [`Console`].
+pub trait ConsoleScreen: Screen + Swap + Flush {}
+impl<S: Screen + Swap + Flush> ConsoleScreen for S {}
+
 /// Virtual text console.
 ///
 /// [`Console`] lets the application redirect `stdout` and `stderr` to a simple text displayer on the 3DS screen.
@@ -58,12 +62,12 @@ pub enum Dimension {
 /// you can try using [`Soc::redirect_to_3dslink`](crate::services::soc::Soc::redirect_to_3dslink) while activating the `--server` flag for `3dslink` (also supported by `cargo-3ds`).
 /// More info in the [`cargo-3ds` docs](https://github.com/rust3ds/cargo-3ds#running-executables).
 #[doc(alias = "PrintConsole")]
-pub struct Console<'screen, S: Screen> {
+pub struct Console<'screen> {
     context: Box<PrintConsole>,
-    screen: RefMut<'screen, S>,
+    screen: RefMut<'screen, dyn ConsoleScreen>,
 }
 
-impl<'screen, S: Screen> Console<'screen, S> {
+impl<'screen> Console<'screen> {
     /// Initialize a console on the chosen screen.
     ///
     /// # Notes
@@ -102,7 +106,7 @@ impl<'screen, S: Screen> Console<'screen, S> {
     /// # }
     /// ```
     #[doc(alias = "consoleInit")]
-    pub fn new(screen: RefMut<'screen, S>) -> Self {
+    pub fn new<S: ConsoleScreen>(screen: RefMut<'screen, S>) -> Self {
         let mut context = Box::<PrintConsole>::default();
 
         unsafe { consoleInit(screen.as_raw(), context.as_mut()) };
@@ -324,7 +328,7 @@ impl<'screen, S: Screen> Console<'screen, S> {
     }
 }
 
-impl<S: Screen + Swap> Swap for Console<'_, S> {
+impl Swap for Console<'_> {
     /// Swaps the video buffers. Note: The console's cursor position is not reset, only the framebuffer is changed.
     ///
     /// Even if double buffering is disabled, "swapping" the buffers has the side effect
@@ -342,13 +346,13 @@ impl<S: Screen + Swap> Swap for Console<'_, S> {
     }
 }
 
-impl<S: Screen + Flush> Flush for Console<'_, S> {
+impl Flush for Console<'_> {
     fn flush_buffers(&mut self) {
         self.screen.flush_buffers();
     }
 }
 
-impl<S: Screen> Drop for Console<'_, S> {
+impl Drop for Console<'_> {
     fn drop(&mut self) {
         unsafe {
             // Safety: We are about to deallocate the PrintConsole data pointed

ctru-rs/src/services/gfx.rs

@@ -13,7 +13,7 @@ use crate::services::gspgpu::{self, FramebufferFormat};
 use crate::services::ServiceReference;
 
 mod private {
-    use super::{BottomScreen, Screen, TopScreen, TopScreen3D, TopScreenLeft, TopScreenRight};
+    use super::{BottomScreen, TopScreen, TopScreen3D, TopScreenLeft, TopScreenRight};
     use crate::console::Console;
 
     pub trait Sealed {}
@@ -23,7 +23,7 @@ mod private {
     impl Sealed for TopScreenLeft {}
     impl Sealed for TopScreenRight {}
     impl Sealed for BottomScreen {}
-    impl<S: Screen> Sealed for Console<'_, S> {}
+    impl Sealed for Console<'_> {}
 }
 
 /// Trait to handle common functionality for all screens.