Zachary Harrold 6963b58eba Modify derive_label to support no_std environments (#15465) ... # Objective - Contributes to #15460 ## Solution - Wrap `derive_label` `quote!` in an anonymous constant which contains an `extern crate alloc` statement, allowing use of the `alloc` namespace even when a user has not brought in the crate themselves. ## Testing - CI passed locally. ## Notes We can't generate code that uses `::std::boxed::Box` in `no_std` environments, but we also can't rely on `::alloc::boxed::Box` either, since the user might not have declared `extern crate alloc`. To resolve this, the generated code is wrapped in an anonymous constant which contains the `extern crate alloc` invocation. This does mean the macro is no longer hygienic against cases where the user provides an alternate `alloc` crate, however I believe this is an acceptable compromise. Additionally, this crate itself doesn't need to be `no_std`, it just needs to _generate_ `no_std` compatible code. --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>		2024-09-27 20:23:26 +00:00
..
attrs.rs	Moved fq_std from bevy_reflect_derive to bevy_macro_utils (#9956)	2023-10-02 00:22:57 +00:00
bevy_manifest.rs	fix deprecations from toml_edit (#12421)	2024-03-11 17:53:38 +00:00
fq_std.rs	Add core and alloc over std Lints (#15281)	2024-09-27 00:59:59 +00:00
label.rs	Modify derive_label to support no_std environments (#15465)	2024-09-27 20:23:26 +00:00
lib.rs	Forbid unsafe in most crates in the engine (#12684)	2024-03-27 03:30:08 +00:00
shape.rs	Remove unnecessary path prefixes (#10749)	2023-11-28 23:43:40 +00:00
symbol.rs	Add core and alloc over std Lints (#15281)	2024-09-27 00:59:59 +00:00