diff --git a/.travis.yml b/.travis.yml index d62112c..1feee2d 100644 --- a/.travis.yml +++ b/.travis.yml @@ -9,6 +9,12 @@ matrix: env: - NODEFAULT=1 - NODROP_FEATURES='use_needs_drop' + - rust: 1.22.1 + env: + - FEATURES='array-sizes-33-128 array-sizes-129-255' + - rust: stable + env: + - FEATURES='array-sizes-33-128 array-sizes-129-255' - rust: beta - rust: nightly env: diff --git a/Cargo.toml b/Cargo.toml index dd5e968..5c3b7a4 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -40,6 +40,9 @@ std = [] use_union = [] serde-1 = ["serde"] +array-sizes-33-128 = [] +array-sizes-129-255 = [] + [package.metadata.docs.rs] features = ["serde-1"] diff --git a/src/array.rs b/src/array.rs index 2ca90b3..4f099a6 100644 --- a/src/array.rs +++ b/src/array.rs @@ -1,5 +1,17 @@ /// Trait for fixed size arrays. +/// +/// This trait is implemented for some specific array sizes, see +/// the implementor list below. At the current state of Rust we can't +/// make this fully general for every array size. +/// +/// The following crate features add more array sizes (and they are not +/// enabled by default due to their impact on compliation speed). +/// +/// - `array-sizes-33-128`: All sizes 33 to 128 are implemented +/// (a few in this range are included by default). +/// - `array-sizes-129-255`: All sizes 129 to 255 are implemented +/// (a few in this range are included by default). pub unsafe trait Array { /// The array’s element type type Item; @@ -65,10 +77,13 @@ macro_rules! fix_array_impl { unsafe impl Array for [T; $len] { type Item = T; type Index = $index_type; + #[doc(hidden)] #[inline(always)] fn as_ptr(&self) -> *const T { self as *const _ as *const _ } + #[doc(hidden)] #[inline(always)] fn as_mut_ptr(&mut self) -> *mut T { self as *mut _ as *mut _} + #[doc(hidden)] #[inline(always)] fn capacity() -> usize { $len } } @@ -77,15 +92,44 @@ macro_rules! fix_array_impl { macro_rules! fix_array_impl_recursive { ($index_type:ty, ) => (); - ($index_type:ty, $len:expr, $($more:expr,)*) => ( - fix_array_impl!($index_type, $len); - fix_array_impl_recursive!($index_type, $($more,)*); + ($index_type:ty, $($len:expr,)*) => ( + $(fix_array_impl!($index_type, $len);)* ); } -fix_array_impl_recursive!(u8, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, - 32, 40, 48, 50, 56, 64, 72, 96, 100, 128, 160, 192, 200, 224,); +fix_array_impl_recursive!(u8, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, + 28, 29, 30, 31, ); + +#[cfg(not(feature="array-sizes-33-128"))] +fix_array_impl_recursive!(u8, 32, 40, 48, 50, 56, 64, 72, 96, 100, 128, ); + +#[cfg(feature="array-sizes-33-128")] +fix_array_impl_recursive!(u8, +32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, +52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, +72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, +92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, +109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, +125, 126, 127, 128, +); + +#[cfg(not(feature="array-sizes-129-255"))] +fix_array_impl_recursive!(u8, 160, 192, 200, 224,); + +#[cfg(feature="array-sizes-129-255")] +fix_array_impl_recursive!(u8, +129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, +141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, +157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, +173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, +189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, +205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, +221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, +237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, +253, 254, 255, +); + fix_array_impl_recursive!(u16, 256, 384, 512, 768, 1024, 2048, 4096, 8192, 16384, 32768,); // This array size doesn't exist on 16-bit #[cfg(any(target_pointer_width="32", target_pointer_width="64"))] diff --git a/src/lib.rs b/src/lib.rs index 8f08401..50903c5 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -18,6 +18,9 @@ //! - `serde-1` //! - Optional //! - Enable serialization for ArrayVec and ArrayString using serde 1.0 +//! - `array-sizes-33-128`, `array-sizes-129-255` +//! - Optional +//! - Enable more array sizes (see [Array] for more information) //! //! ## Rust Version //! diff --git a/tests/tests.rs b/tests/tests.rs index 7580eab..3261df3 100644 --- a/tests/tests.rs +++ b/tests/tests.rs @@ -485,3 +485,18 @@ fn test_default() { assert_eq!(s.len(), 0); assert_eq!(v.len(), 0); } + +#[cfg(feature="array-sizes-33-128")] +#[test] +fn test_sizes_33_128() { + ArrayVec::from([0u8; 52]); + ArrayVec::from([0u8; 127]); +} + +#[cfg(feature="array-sizes-129-255")] +#[test] +fn test_sizes_129_255() { + ArrayVec::from([0u8; 237]); + ArrayVec::from([0u8; 255]); +} +