From d0d9683df8398696147e7ee1fcffb2e4e957008c Mon Sep 17 00:00:00 2001 From: Daniel Mueller Date: Sat, 4 Apr 2020 14:39:19 -0700 Subject: Remove vendored dependencies While it appears that by now we actually can get successful builds without Cargo insisting on Internet access by virtue of using the --frozen flag, maintaining vendored dependencies is somewhat of a pain point. This state will also get worse with upcoming changes that replace argparse in favor of structopt and pull in a slew of new dependencies by doing so. Then there is also the repository structure aspect, which is non-standard due to the way we vendor dependencies and a potential source of confusion. In order to fix these problems, this change removes all the vendored dependencies we have. Delete subrepo argparse/:argparse Delete subrepo base32/:base32 Delete subrepo cc/:cc Delete subrepo cfg-if/:cfg-if Delete subrepo getrandom/:getrandom Delete subrepo lazy-static/:lazy-static Delete subrepo libc/:libc Delete subrepo nitrokey-sys/:nitrokey-sys Delete subrepo nitrokey/:nitrokey Delete subrepo rand/:rand --- lazy-static/src/lib.rs | 215 ------------------------------------------------- 1 file changed, 215 deletions(-) delete mode 100644 lazy-static/src/lib.rs (limited to 'lazy-static/src/lib.rs') diff --git a/lazy-static/src/lib.rs b/lazy-static/src/lib.rs deleted file mode 100644 index cada0dc..0000000 --- a/lazy-static/src/lib.rs +++ /dev/null @@ -1,215 +0,0 @@ -// Copyright 2016 lazy-static.rs Developers -// -// Licensed under the Apache License, Version 2.0, or the MIT license , at your option. This file may not be -// copied, modified, or distributed except according to those terms. - -/*! -A macro for declaring lazily evaluated statics. - -Using this macro, it is possible to have `static`s that require code to be -executed at runtime in order to be initialized. -This includes anything requiring heap allocations, like vectors or hash maps, -as well as anything that requires function calls to be computed. - -# Syntax - -```ignore -lazy_static! { - [pub] static ref NAME_1: TYPE_1 = EXPR_1; - [pub] static ref NAME_2: TYPE_2 = EXPR_2; - ... - [pub] static ref NAME_N: TYPE_N = EXPR_N; -} -``` - -Attributes (including doc comments) are supported as well: - -```rust -# #[macro_use] -# extern crate lazy_static; -# fn main() { -lazy_static! { - /// This is an example for using doc comment attributes - static ref EXAMPLE: u8 = 42; -} -# } -``` - -# Semantics - -For a given `static ref NAME: TYPE = EXPR;`, the macro generates a unique type that -implements `Deref` and stores it in a static with name `NAME`. (Attributes end up -attaching to this type.) - -On first deref, `EXPR` gets evaluated and stored internally, such that all further derefs -can return a reference to the same object. Note that this can lead to deadlocks -if you have multiple lazy statics that depend on each other in their initialization. - -Apart from the lazy initialization, the resulting "static ref" variables -have generally the same properties as regular "static" variables: - -- Any type in them needs to fulfill the `Sync` trait. -- If the type has a destructor, then it will not run when the process exits. - -# Example - -Using the macro: - -```rust -#[macro_use] -extern crate lazy_static; - -use std::collections::HashMap; - -lazy_static! { - static ref HASHMAP: HashMap = { - let mut m = HashMap::new(); - m.insert(0, "foo"); - m.insert(1, "bar"); - m.insert(2, "baz"); - m - }; - static ref COUNT: usize = HASHMAP.len(); - static ref NUMBER: u32 = times_two(21); -} - -fn times_two(n: u32) -> u32 { n * 2 } - -fn main() { - println!("The map has {} entries.", *COUNT); - println!("The entry for `0` is \"{}\".", HASHMAP.get(&0).unwrap()); - println!("A expensive calculation on a static results in: {}.", *NUMBER); -} -``` - -# Implementation details - -The `Deref` implementation uses a hidden static variable that is guarded by an atomic check on each access. - -# Cargo features - -This crate provides one cargo feature: - -- `spin_no_std`: This allows using this crate in a no-std environment, by depending on the standalone `spin` crate. - -*/ - -#![doc(html_root_url = "https://docs.rs/lazy_static/1.4.0")] -#![no_std] - -#[cfg(not(feature = "spin_no_std"))] -#[path="inline_lazy.rs"] -#[doc(hidden)] -pub mod lazy; - -#[cfg(test)] -#[macro_use] -extern crate doc_comment; - -#[cfg(test)] -doctest!("../README.md"); - -#[cfg(feature = "spin_no_std")] -#[path="core_lazy.rs"] -#[doc(hidden)] -pub mod lazy; - -#[doc(hidden)] -pub use core::ops::Deref as __Deref; - -#[macro_export(local_inner_macros)] -#[doc(hidden)] -macro_rules! __lazy_static_internal { - // optional visibility restrictions are wrapped in `()` to allow for - // explicitly passing otherwise implicit information about private items - ($(#[$attr:meta])* ($($vis:tt)*) static ref $N:ident : $T:ty = $e:expr; $($t:tt)*) => { - __lazy_static_internal!(@MAKE TY, $(#[$attr])*, ($($vis)*), $N); - __lazy_static_internal!(@TAIL, $N : $T = $e); - lazy_static!($($t)*); - }; - (@TAIL, $N:ident : $T:ty = $e:expr) => { - impl $crate::__Deref for $N { - type Target = $T; - fn deref(&self) -> &$T { - #[inline(always)] - fn __static_ref_initialize() -> $T { $e } - - #[inline(always)] - fn __stability() -> &'static $T { - __lazy_static_create!(LAZY, $T); - LAZY.get(__static_ref_initialize) - } - __stability() - } - } - impl $crate::LazyStatic for $N { - fn initialize(lazy: &Self) { - let _ = &**lazy; - } - } - }; - // `vis` is wrapped in `()` to prevent parsing ambiguity - (@MAKE TY, $(#[$attr:meta])*, ($($vis:tt)*), $N:ident) => { - #[allow(missing_copy_implementations)] - #[allow(non_camel_case_types)] - #[allow(dead_code)] - $(#[$attr])* - $($vis)* struct $N {__private_field: ()} - #[doc(hidden)] - $($vis)* static $N: $N = $N {__private_field: ()}; - }; - () => () -} - -#[macro_export(local_inner_macros)] -macro_rules! lazy_static { - ($(#[$attr:meta])* static ref $N:ident : $T:ty = $e:expr; $($t:tt)*) => { - // use `()` to explicitly forward the information about private items - __lazy_static_internal!($(#[$attr])* () static ref $N : $T = $e; $($t)*); - }; - ($(#[$attr:meta])* pub static ref $N:ident : $T:ty = $e:expr; $($t:tt)*) => { - __lazy_static_internal!($(#[$attr])* (pub) static ref $N : $T = $e; $($t)*); - }; - ($(#[$attr:meta])* pub ($($vis:tt)+) static ref $N:ident : $T:ty = $e:expr; $($t:tt)*) => { - __lazy_static_internal!($(#[$attr])* (pub ($($vis)+)) static ref $N : $T = $e; $($t)*); - }; - () => () -} - -/// Support trait for enabling a few common operation on lazy static values. -/// -/// This is implemented by each defined lazy static, and -/// used by the free functions in this crate. -pub trait LazyStatic { - #[doc(hidden)] - fn initialize(lazy: &Self); -} - -/// Takes a shared reference to a lazy static and initializes -/// it if it has not been already. -/// -/// This can be used to control the initialization point of a lazy static. -/// -/// Example: -/// -/// ```rust -/// #[macro_use] -/// extern crate lazy_static; -/// -/// lazy_static! { -/// static ref BUFFER: Vec = (0..255).collect(); -/// } -/// -/// fn main() { -/// lazy_static::initialize(&BUFFER); -/// -/// // ... -/// work_with_initialized_data(&BUFFER); -/// } -/// # fn work_with_initialized_data(_: &[u8]) {} -/// ``` -pub fn initialize(lazy: &T) { - LazyStatic::initialize(lazy); -} -- cgit v1.2.1