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Implement a stop-gap “MaybeUninit” using ManuallyDrop by bluss · Pull Request #97 · bluss/arrayvec · GitHub

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Implement a stop-gap “MaybeUninit” using ManuallyDrop #97

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Implement a stop-gap “MaybeUninit” using ManuallyDrop #97

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f45c141
FEAT: Implement a careful “MaybeUninit” using ManuallyDrop
bluss Mar 25, 2018
7059dc4
FIX: Use raw pointer casts for MaybeUninit
bluss Mar 25, 2018
51debed
API: Deprecate .dispose()
bluss Mar 25, 2018
2cebc1f
DOC: MaybeUninit comment
bluss Nov 25, 2018
5f88d1f
FIX: Remove the nodrop fallback
bluss Nov 25, 2018
7e991da
MAINT: Rust 1.22.1 was the first version with Copy for ManuallyDrop
bluss Nov 25, 2018
97eb3fd
FEAT: Use a separate, and hopefully sound MaybeUninitCopy for ArraySt…
bluss Nov 25, 2018
c321bf2
FIX: Add associated constant for Array's capacity
bluss Dec 1, 2018
6bb1406
FIX: Remove unused .as_mut_ptr() on the Array trait
bluss Dec 1, 2018
1ee6482
DOC: Remove warning on ArrayVec's into_inner method
bluss Dec 1, 2018
306b363
MAINT: Edit travis setup for changed crate features
bluss Dec 1, 2018
7f7e312
TEST: Add test that Some(ArrayVec<[&_;_]>).is_some()
bluss Dec 3, 2018
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32 changes: 13 additions & 19 deletions .travis.yml
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Expand Up @@ -4,40 +4,34 @@ env:
- FEATURES='serde-1'
matrix:
include:
- rust: 1.20.0
- rust: stable
env:
- NODEFAULT=1
- NODROP_FEATURES='use_needs_drop'
- rust: 1.22.1
env:
- FEATURES='array-sizes-33-128 array-sizes-129-255'
- rust: stable
- rust: stable
env:
- FEATURES='serde-1'
- rust: stable
env:
- FEATURES='array-sizes-33-128 array-sizes-129-255'
- rust: beta
- rust: nightly
env:
- NODEFAULT=1
- FEATURES='serde-1'
- rust: nightly
env:
- NODROP_FEATURES='use_needs_drop'
- FEATURES='serde-1'
- rust: nightly
env:
- FEATURES='serde use_union'
- NODROP_FEATURES='use_union'
- FEATURES='array-sizes-33-128 array-sizes-129-255'
branches:
only:
- master
- 0.3
script:
- |
([ ! -z "$NODROP_FEATURES" ] || cargo build --verbose --features "$FEATURES") &&
([ "$NODEFAULT" != 1 ] || cargo build --verbose --no-default-features) &&
([ ! -z "$NODROP_FEATURES" ] || cargo test --verbose --features "$FEATURES") &&
([ ! -z "$NODROP_FEATURES" ] || cargo test --release --verbose --features "$FEATURES") &&
([ ! -z "$NODROP_FEATURES" ] || cargo bench --verbose --features "$FEATURES" -- --test) &&
([ ! -z "$NODROP_FEATURES" ] || cargo doc --verbose --features "$FEATURES") &&
([ "$NODEFAULT" != 1 ] || cargo build --verbose --manifest-path=nodrop/Cargo.toml --no-default-features) &&
cargo test --verbose --manifest-path=nodrop/Cargo.toml --features "$NODROP_FEATURES" &&
cargo bench --verbose --manifest-path=nodrop/Cargo.toml --features "$NODROP_FEATURES" -- --test
cargo build --verbose --no-default-features &&
cargo build --verbose --features "$FEATURES" &&
cargo test --verbose --features "$FEATURES" &&
cargo test --release --verbose --features "$FEATURES" &&
cargo bench --verbose --features "$FEATURES" --no-run &&
cargo doc --verbose --features "$FEATURES"
7 changes: 5 additions & 2 deletions Cargo.toml
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Expand Up @@ -11,8 +11,9 @@ repository = "https://github.com/bluss/arrayvec"
keywords = ["stack", "vector", "array", "data-structure", "no_std"]
categories = ["data-structures", "no-std"]

[build-dependencies]

[dependencies]
nodrop = { version = "0.1.12", path = "nodrop", default-features = false }

[dependencies.serde]
version = "1.0"
Expand All @@ -37,12 +38,14 @@ harness = false
[features]
default = ["std"]
std = []
use_union = []
serde-1 = ["serde"]

array-sizes-33-128 = []
array-sizes-129-255 = []

# has no effect
use_union = []

[package.metadata.docs.rs]
features = ["serde-1"]

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10 changes: 4 additions & 6 deletions src/array.rs
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Expand Up @@ -15,14 +15,14 @@
pub unsafe trait Array {
/// The array’s element type
type Item;
/// The smallest type that can index and tell the length of the array.
#[doc(hidden)]
/// The smallest index type that indexes the array.
type Index: Index;
/// The array's element capacity
const CAPACITY: usize;
#[doc(hidden)]
fn as_ptr(&self) -> *const Self::Item;
#[doc(hidden)]
fn as_mut_ptr(&mut self) -> *mut Self::Item;
#[doc(hidden)]
fn capacity() -> usize;
}

Expand Down Expand Up @@ -91,14 +91,12 @@ macro_rules! fix_array_impl {
unsafe impl<T> Array for [T; $len] {
type Item = T;
type Index = $index_type;
const CAPACITY: usize = $len;
#[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 }
}
)
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