feat!: replace funty with platform-num, remove LinkType

Cargo.toml

@@ -14,7 +14,7 @@ categories = ["data-structures"]
 
 [dependencies]
 beef = "0.5.2"
-funty = "2.0.0"
+platform-num = "0.8.0"
 thiserror = "2.0.18"
 
 [dev-dependencies]

README.md

@@ -13,7 +13,7 @@ This crate provides core data types and traits for the [Links Platform](https://
 
 The `platform-data` crate provides:
 
-- **`LinkType`** — A trait defining the numeric types that can be used as link identifiers
+- **`LinkReference`** — A trait (from `platform-num`) defining the numeric types that can be used as link identifiers
 - **`Links`** — The core trait for CRUD operations on doublet links storage
 - **`Flow`** — Control flow type for iteration operations (Continue/Break)
 - **`Query`** — A wrapper for link queries using copy-on-write semantics
@@ -115,7 +115,7 @@ assert!(external.is_external());
 ### Implementing the Links trait
 
 ```rust
-use platform_data::{Links, LinkType, LinksConstants, Flow, Error, ReadHandler, WriteHandler};
+use platform_data::{Links, LinkReference, LinksConstants, Flow, Error, ReadHandler, WriteHandler};
 
 // The Links trait provides CRUD operations for doublet links:
 // - constants_links() - get storage configuration
@@ -132,7 +132,7 @@ use platform_data::{Links, LinkType, LinksConstants, Flow, Error, ReadHandler, W
 
 | Type | Description |
 |------|-------------|
-| `LinkType` | Trait bound for numeric types usable as link identifiers (unsigned integers) |
+| `LinkReference` | Trait bound (from `platform-num`) for numeric types usable as link identifiers (unsigned integers) |
 | `Links<T>` | Main trait defining CRUD operations for links storage |
 | `Flow` | Control flow enum: `Continue` or `Break` for iteration control |
 | `Query<'a, T>` | Copy-on-write query wrapper for efficient link queries |
@@ -162,7 +162,7 @@ This crate requires **Rust 1.85 or later** (stable toolchain, edition 2024).
 ## Dependencies
 
 - [beef](https://crates.io/crates/beef) — Faster and more compact Cow implementation
-- [funty](https://crates.io/crates/funty) — Fundamental type unification
+- [platform-num](https://crates.io/crates/platform-num) — Numeric traits for the Links Platform (`LinkReference`, `WrappingAdd`, etc.)
 - [thiserror](https://crates.io/crates/thiserror) — Derive macro for error types
 
 ## Documentation

changelog.d/20260414_replace_funty_with_platform_num.md

@@ -0,0 +1,16 @@
+---
+bump: major
+---
+
+### Changed
+- Replaced `funty` dependency with `platform-num` 0.8.0 (`LinkReference` trait)
+- Replaced all `LinkType` bounds with `LinkReference` from `platform-num`
+- Replaced `FuntyPart::funty(n)` calls with `LinkReference::from_byte(n)`
+- Simplified all generic bounds from `T: LinkReference + WrappingAdd` to `T: LinkReference` (`WrappingArithmetic` is now a supertrait of `LinkReference` in `platform-num` 0.8.0)
+
+### Removed
+- Removed `funty` dependency
+- Removed `num-traits` dependency (re-exported by `platform-num`)
+- Removed `LinkType` trait entirely (replaced by `LinkReference`)
+- Removed `FuntyPart` trait (replaced by `LinkReference::from_byte`)
+- Removed `link_type.rs` module

src/constants.rs

@@ -1,9 +1,10 @@
 use std::ops::RangeInclusive;
 
-use crate::{Hybrid, LinkType};
+use crate::Hybrid;
+use platform_num::LinkReference;
 
 #[derive(Clone, Eq, PartialEq, Debug)]
-pub struct LinksConstants<T: LinkType> {
+pub struct LinksConstants<T: LinkReference> {
     pub index_part: T,
     pub source_part: T,
     pub target_part: T,
@@ -18,9 +19,9 @@ pub struct LinksConstants<T: LinkType> {
     pub external_range: Option<RangeInclusive<T>>,
 }
 
-impl<T: LinkType> LinksConstants<T> {
+impl<T: LinkReference> LinksConstants<T> {
     fn default_target_part() -> T {
-        T::funty(2)
+        T::from_byte(2)
     }
 
     pub fn full_new(
@@ -29,17 +30,17 @@ impl<T: LinkType> LinksConstants<T> {
         external: Option<RangeInclusive<T>>,
     ) -> Self {
         Self {
-            index_part: T::funty(0),
-            source_part: T::funty(1),
+            index_part: T::from_byte(0),
+            source_part: T::from_byte(1),
             target_part,
-            null: T::funty(0),
+            null: T::from_byte(0),
             r#continue: *internal.end(),
-            r#break: *internal.end() - T::funty(1),
-            skip: *internal.end() - T::funty(2),
-            any: *internal.end() - T::funty(3),
-            itself: *internal.end() - T::funty(4),
-            error: *internal.end() - T::funty(5),
-            internal_range: *internal.start()..=*internal.end() - T::funty(6),
+            r#break: *internal.end() - T::from_byte(1),
+            skip: *internal.end() - T::from_byte(2),
+            any: *internal.end() - T::from_byte(3),
+            itself: *internal.end() - T::from_byte(4),
+            error: *internal.end() - T::from_byte(5),
+            internal_range: *internal.start()..=*internal.end() - T::from_byte(6),
             external_range: external,
         }
     }
@@ -79,9 +80,9 @@ impl<T: LinkType> LinksConstants<T> {
 
     fn default_internal(external: bool) -> RangeInclusive<T> {
         if external {
-            T::funty(1)..=Hybrid::half()
+            T::from_byte(1)..=Hybrid::half()
         } else {
-            T::funty(1)..=T::MAX
+            T::from_byte(1)..=T::MAX
         }
     }
 
@@ -108,7 +109,7 @@ impl<T: LinkType> LinksConstants<T> {
     }
 }
 
-impl<T: LinkType> Default for LinksConstants<T> {
+impl<T: LinkReference> Default for LinksConstants<T> {
     fn default() -> Self {
         Self::new()
     }

src/converters.rs

@@ -1,10 +1,11 @@
-use crate::{Hybrid, LinkType};
+use crate::Hybrid;
+use platform_num::LinkReference;
 
 #[derive(Default)]
 pub struct AddrToRaw;
 
 impl AddrToRaw {
-    pub fn convert<T: LinkType>(&self, source: T) -> T {
+    pub fn convert<T: LinkReference>(&self, source: T) -> T {
         Hybrid::external(source).as_inner()
     }
 }
@@ -13,7 +14,7 @@ impl AddrToRaw {
 pub struct RawToAddr;
 
 impl RawToAddr {
-    pub fn convert<T: LinkType>(&self, source: T) -> T {
+    pub fn convert<T: LinkReference>(&self, source: T) -> T {
         Hybrid::external(source).abs()
     }
 }

src/hybrid.rs

@@ -1,18 +1,18 @@
-use crate::LinkType;
+use platform_num::LinkReference;
 
 #[derive(Debug, Clone, Copy, Hash, PartialOrd, PartialEq, Ord, Eq)]
 pub struct Hybrid<T> {
     value: T,
 }
 
-impl<T: LinkType> Hybrid<T> {
+impl<T: LinkReference> Hybrid<T> {
     pub const fn new(value: T) -> Self {
         Self::internal(value)
     }
 
     #[must_use]
     pub fn half() -> T {
-        T::MAX / T::funty(2)
+        T::MAX / T::from_byte(2)
     }
 
     pub fn external(value: T) -> Self {
@@ -26,23 +26,25 @@ impl<T: LinkType> Hybrid<T> {
     }
 
     fn extend_value(value: T) -> T {
-        (T::MAX - value).wrapping_add(T::funty(1))
+        (T::MAX - value).wrapping_add(&T::from_byte(1))
     }
 
     pub fn is_zero(&self) -> bool {
-        self.value == T::funty(0)
+        self.value == T::from_byte(0)
     }
 
     pub fn is_internal(&self) -> bool {
         self.value < Self::half() // || self.value == T::default()
     }
 
     pub fn is_external(&self) -> bool {
-        !self.is_internal() || self.value == T::funty(0)
+        !self.is_internal() || self.value == T::from_byte(0)
     }
 
     pub fn abs(&self) -> T {
-        self.value.wrapping_add(T::funty(1)).wrapping_add(T::MAX)
+        self.value
+            .wrapping_add(&T::from_byte(1))
+            .wrapping_add(&T::MAX)
     }
 
     pub const fn as_inner(&self) -> T {

src/lib.rs

@@ -2,7 +2,6 @@ mod constants;
 mod converters;
 mod flow;
 mod hybrid;
-mod link_type;
 mod links;
 mod point;
 mod query;
@@ -11,7 +10,7 @@ pub use constants::LinksConstants;
 pub use converters::{AddrToRaw, RawToAddr};
 pub use flow::Flow;
 pub use hybrid::Hybrid;
-pub use link_type::LinkType;
 pub use links::{Error, Links, ReadHandler, WriteHandler};
+pub use platform_num::LinkReference;
 pub use point::{Point, PointIter};
 pub use query::{Query, ToQuery};

src/links.rs

@@ -1,8 +1,9 @@
-use crate::{Flow, LinkType, LinksConstants};
+use crate::{Flow, LinksConstants};
+use platform_num::LinkReference;
 use std::{borrow::Cow, error, io};
 
 #[derive(thiserror::Error, Debug)]
-pub enum Error<'a, T: LinkType> {
+pub enum Error<'a, T: LinkReference> {
     #[error("link {0} does not exist.")]
     NotExists(T),
 
@@ -26,7 +27,7 @@ pub type ReadHandler<'a, T> = &'a mut dyn FnMut(&[T]) -> Flow;
 
 pub type WriteHandler<'a, T> = &'a mut dyn FnMut(&[T], &[T]) -> Flow;
 
-pub trait Links<T: LinkType> {
+pub trait Links<T: LinkReference> {
     fn constants_links(&self) -> LinksConstants<T>;
 
     fn count_links(&self, query: &[T]) -> T;