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bevy_reflect: Add crate level functions feature docs (#15086)

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Adds the missing section for the `functions` cargo feature of the
`bevy_reflect` crate.
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Nathan Lilienthal 2024-10-09 14:06:56 -04:00 committed by GitHub
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commit 0b2e0cfaca
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1 changed files with 19 additions and 8 deletions
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27
crates/bevy_reflect/src/lib.rs
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@ -454,15 +454,11 @@
//! but [`Reflect`] requires all types to have a `'static` lifetime.
//! This makes it impossible to reflect any type with non-static borrowed data.
//!
//! ## Function Reflection
//! ## Generic Function Reflection
//!
//! Another limitation is the inability to fully reflect functions and methods.
//! Most languages offer some way of calling methods dynamically,
//! but Rust makes this very difficult to do.
//! For non-generic methods, this can be done by registering custom [type data] that
//! contains function pointers.
//! For generic methods, the same can be done but will typically require manual monomorphization
//! (i.e. manually specifying the types the generic method can take).
//! Another limitation is the inability to reflect over generic functions directly. It can be done, but will
//! typically require manual monomorphization (i.e. manually specifying the types the generic method can
//! take).
//!
//! ## Manual Registration
//!
@ -485,6 +481,17 @@
//! These dependencies are used by the [Bevy] game engine and must define their reflection implementations
//! within this crate due to Rust's [orphan rule].
//!
//! ## `functions`
//!
//! | Default | Dependencies |
//! | :-----: | :-------------------------------: |
//! | ❌ | [`bevy_reflect_derive/functions`] |
//!
//! This feature allows creating a [`DynamicFunction`] or [`DynamicFunctionMut`] from Rust functions. Dynamic
//! functions can then be called with valid [`ArgList`]s.
//!
//! For more information, read the [`func`] module docs.
//!
//! ## `documentation`
//!
//! | Default | Dependencies |
@ -540,6 +547,10 @@
//! [`smallvec`]: https://docs.rs/smallvec/latest/smallvec/
//! [orphan rule]: https://doc.rust-lang.org/book/ch10-02-traits.html#implementing-a-trait-on-a-type:~:text=But%20we%20can%E2%80%99t,implementation%20to%20use.
//! [`bevy_reflect_derive/documentation`]: bevy_reflect_derive
//! [`bevy_reflect_derive/functions`]: bevy_reflect_derive
//! [`DynamicFunction`]: crate::func::DynamicFunction
//! [`DynamicFunctionMut`]: crate::func::DynamicFunctionMut
//! [`ArgList`]: crate::func::ArgList
//! [derive `Reflect`]: derive@crate::Reflect
extern crate alloc;