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Prepare for making the crate no_std #21

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Merged
merged 1 commit into from
Sep 9, 2024
Merged

Prepare for making the crate no_std #21

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5 changes: 5 additions & 0 deletions Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,11 @@ keywords = ["window", "metal", "graphics"]
categories = ["game-engines", "graphics"]
exclude = [".github/*"]

[features]
default = ["std"]
std = ["alloc"]
alloc = []

[target.'cfg(target_vendor = "apple")'.dependencies]
objc2 = "0.5.2"
objc2-foundation = { version = "0.2.2", features = [
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7 changes: 7 additions & 0 deletions src/lib.rs
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Expand Up @@ -124,6 +124,7 @@
//! do not modify common `CALayer` properties of the layer that `raw-window-metal` creates, since
//! they may just end up being overwritten (see also "Semantics" above).

#![no_std]
#![cfg(target_vendor = "apple")]
#![cfg_attr(docsrs, feature(doc_auto_cfg, doc_cfg_hide), doc(cfg_hide(doc)))]
#![deny(unsafe_op_in_unsafe_fn)]
Expand All @@ -142,6 +143,12 @@ use objc2::{msg_send_id, ClassType};
use objc2_foundation::{MainThreadMarker, NSObject, NSObjectProtocol};
use objc2_quartz_core::{CALayer, CAMetalLayer};

#[cfg(not(feature = "alloc"))]
compile_error!("The `alloc` feature must currently be enabled.");

#[cfg(not(feature = "std"))]
compile_error!("The `std` feature must currently be enabled.");

/// A wrapper around [`CAMetalLayer`].
#[doc(alias = "CAMetalLayer")]
#[derive(Debug, Clone)]
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