start an ArrayVec extension trait

Signed-off-by: Jason Volk <jason@zemos.net>

src/core/utils/arrayvec.rs

@@ -0,0 +1,15 @@
+use ::arrayvec::ArrayVec;
+
+pub trait ArrayVecExt<T> {
+	fn extend_from_slice(&mut self, other: &[T]) -> &mut Self;
+}
+
+impl<T: Copy, const CAP: usize> ArrayVecExt<T> for ArrayVec<T, CAP> {
+	#[inline]
+	fn extend_from_slice(&mut self, other: &[T]) -> &mut Self {
+		self.try_extend_from_slice(other)
+			.expect("Insufficient buffer capacity to extend from slice");
+
+		self
+	}
+}

src/core/utils/mod.rs

@@ -1,3 +1,4 @@
+pub mod arrayvec;
 pub mod bool;
 pub mod bytes;
 pub mod content_disposition;
@@ -22,6 +23,7 @@ pub use ::conduit_macros::implement;
 pub use ::ctor::{ctor, dtor};
 
 pub use self::{
+	arrayvec::ArrayVecExt,
 	bool::BoolExt,
 	bytes::{increment, u64_from_bytes, u64_from_u8, u64_from_u8x8},
 	debug::slice_truncated as debug_slice_truncated,