add tinyptr-alloc

Cargo.lock

@@ -569,6 +569,13 @@ dependencies = [
 name = "tinyptr"
 version = "0.1.0"
 
+[[package]]
+name = "tinyptr-alloc"
+version = "0.1.0"
+dependencies = [
+ "tinyptr",
+]
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.1"

Cargo.nix

@@ -5,6 +5,7 @@ args@{
   release ? true,
   rootFeatures ? [
     "tinyptr/default"
+    "tinyptr-alloc/default"
     "rkbfirm/default"
   ],
   rustPackages,
@@ -43,6 +44,7 @@ in
   cargo2nixVersion = "0.11.0";
   workspace = {
     tinyptr = rustPackages.unknown.tinyptr."0.1.0";
+    tinyptr-alloc = rustPackages.unknown.tinyptr-alloc."0.1.0";
     rkbfirm = rustPackages.unknown.rkbfirm."0.1.0";
   };
   "registry+https://github.com/rust-lang/crates.io-index".aho-corasick."0.7.18" = overridableMkRustCrate (profileName: rec {
@@ -810,6 +812,16 @@ in
     src = fetchCrateLocal (workspaceSrc + "/lib/tinyptr");
   });
   
+  "unknown".tinyptr-alloc."0.1.0" = overridableMkRustCrate (profileName: rec {
+    name = "tinyptr-alloc";
+    version = "0.1.0";
+    registry = "unknown";
+    src = fetchCrateLocal (workspaceSrc + "/lib/tinyptr-alloc");
+    dependencies = {
+      tinyptr = rustPackages."unknown".tinyptr."0.1.0" { inherit profileName; };
+    };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".unicode-ident."1.0.1" = overridableMkRustCrate (profileName: rec {
     name = "unicode-ident";
     version = "1.0.1";

Cargo.toml

@@ -5,7 +5,8 @@ edition = "2021"
 
 [workspace]
 members = [
-  "lib/tinyptr"
+  "lib/tinyptr",
+  "lib/tinyptr-alloc"
 ]
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

flake.nix

@@ -19,8 +19,15 @@
     };
   };
 
-  outputs = { self, nixpkgs, flake-utils, rust-overlay, cargo2nix, ... } @ inputs: flake-utils.lib.eachSystem [ "x86_64-linux" ] (system:
-    let
+  outputs = {
+    self,
+    nixpkgs,
+    flake-utils,
+    rust-overlay,
+    cargo2nix,
+    ...
+  } @ inputs:
+    flake-utils.lib.eachSystem ["x86_64-linux"] (system: let
       overlays = [
         cargo2nix.overlays.default
         (import rust-overlay)
@@ -35,12 +42,12 @@
         target = "thumbv6m-none-eabi";
         packageOverrides = pkgs: pkgs.rustBuilder.overrides.all;
       };
-    in
-    rec {
-      devShells.default = with pkgs; mkShell {
+    in rec {
+      devShells.default = with pkgs;
+        mkShell {
           buildInputs = [
             (rust-bin.nightly.latest.default.override {
-            extensions = [ "rust-src" ];
+              extensions = ["rust-src"];
               targets = ["thumbv6m-none-eabi"];
             })
             cargo2nix.packages.${system}.cargo2nix
@@ -55,7 +62,7 @@
           src = self;
           officialRelease = true;
           version = self.lastModifiedDate;
-          nativeBuildInputs = [ pkgs.zstd ];
+          nativeBuildInputs = [pkgs.zstd];
           distPhase = ''
             releaseName=rkb1-src-$version
             mkdir -p $out/tarballs
@@ -64,9 +71,11 @@
             (cd .. && tar -cf- $releaseName | zstd --ultra -22 > $out/tarballs/$releaseName.tar.zst) || false
           '';
         };
-        rkbfirm-crate = (rustPkgs.workspace.rkbfirm { }).overrideAttrs(old: {
+        rkbfirm-crate = (rustPkgs.workspace.rkbfirm {}).overrideAttrs (old: {
           configureCargo = "true";
         });
+        tinyptr-crate = rustPkgs.workspace.tinyptr {};
+        tinyptr-alloc-crate = rustPkgs.workspace.tinyptr-alloc {};
         rkbfirm = pkgs.stdenvNoCC.mkDerivation {
           pname = "rkbfirm";
           src = self;
@@ -93,10 +102,12 @@
         };
         default = rkbfirm;
         devShell = devShells.default;
+        inherit formatter;
       };
       nixosModules.default = import ./nixos {
         inherit inputs system;
       };
       hydraJobs = packages;
+      formatter = pkgs.alejandra;
     });
 }

lib/tinyptr-alloc/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "tinyptr-alloc"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+tinyptr = { path = "../tinyptr" }

lib/tinyptr-alloc/src/lib.rs

@@ -0,0 +1,10 @@
+#![no_std]
+
+use tinyptr::ptr::MutPtr;
+
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+pub struct ListNode<const BASE: usize> {
+    pub next: MutPtr<Self, BASE>,
+    pub size: u16
+}
+

lib/tinyptr/src/lib.rs

@@ -19,6 +19,8 @@
 use core::hash::Hash;
 
 pub mod ptr;
+mod tiny_ref;
+pub use tiny_ref::*;
 
 /// Trait that defines valid destination types for a pointer.
 pub trait Pointable {

lib/tinyptr/src/tiny_ref/const_ref.rs

@@ -0,0 +1,31 @@
+use core::{marker::PhantomData, ops::Deref, borrow::Borrow};
+
+use crate::{Pointable, ptr::NonNull};
+
+/// Constant Tiny Reference
+#[repr(transparent)]
+pub struct Ref<'a, T: Pointable + ?Sized, const BASE: usize> {
+    pub(crate) ptr: NonNull<T, BASE>,
+    pub(crate) _marker: PhantomData<&'a T>
+}
+
+impl<T: Pointable + ?Sized, const BASE: usize> Copy for Ref<'_, T, BASE> {}
+impl<T: Pointable + ?Sized, const BASE: usize> Clone for Ref<'_, T, BASE> {
+    fn clone(&self) -> Self {
+        *self
+    }
+}
+impl<T: Pointable + ?Sized, const BASE: usize> Deref for Ref<'_, T, BASE> {
+    type Target = T;
+    fn deref(&self) -> &T {
+        // SAFETY: Reference must be valid to be constructed
+        unsafe {
+            &*(*self).ptr.as_ptr().wide()
+        }
+    }
+}
+impl<T: Pointable + ?Sized, const BASE: usize> Borrow<T> for Ref<'_, T, BASE> {
+    fn borrow(&self) -> &T {
+        &*self
+    }
+}

lib/tinyptr/src/tiny_ref/mod.rs

@@ -0,0 +1,2 @@
+mod const_ref;
+pub use const_ref::*;