bitflags-1.2.1/.gitignore010064400007650000024000000000331345301143700135120ustar0000000000000000target Cargo.lock /.idea/ bitflags-1.2.1/build.rs010064400007650000024000000017271346245005300132030ustar0000000000000000use std::env; use std::process::Command; use std::str::{self, FromStr}; fn main(){ let minor = match rustc_minor_version() { Some(minor) => minor, None => return, }; // const fn stabilized in Rust 1.31: if minor >= 31 { println!("cargo:rustc-cfg=bitflags_const_fn"); } } fn rustc_minor_version() -> Option { let rustc = match env::var_os("RUSTC") { Some(rustc) => rustc, None => return None, }; let output = match Command::new(rustc).arg("--version").output() { Ok(output) => output, Err(_) => return None, }; let version = match str::from_utf8(&output.stdout) { Ok(version) => version, Err(_) => return None, }; let mut pieces = version.split('.'); if pieces.next() != Some("rustc 1") { return None; } let next = match pieces.next() { Some(next) => next, None => return None, }; u32::from_str(next).ok() }bitflags-1.2.1/Cargo.toml.orig010064400007650000024000000015171355073054200144240ustar0000000000000000[package] name = "bitflags" # NB: When modifying, also modify: # 1. html_root_url in lib.rs # 2. number in readme (for breaking changes) version = "1.2.1" authors = ["The Rust Project Developers"] license = "MIT/Apache-2.0" keywords = ["bit", "bitmask", "bitflags", "flags"] readme = "README.md" repository = "https://github.com/bitflags/bitflags" homepage = "https://github.com/bitflags/bitflags" documentation = "https://docs.rs/bitflags" categories = ["no-std"] description = """ A macro to generate structures which behave like bitflags. """ exclude = [ ".travis.yml", "appveyor.yml", "bors.toml" ] build = "build.rs" [badges] travis-ci = { repository = "bitflags/bitflags" } [features] default = [] example_generated = [] [package.metadata.docs.rs] features = [ "example_generated" ] [workspace] members = ["test_suite"] bitflags-1.2.1/Cargo.toml0000644000000022470000000000000106720ustar00# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO # # When uploading crates to the registry Cargo will automatically # "normalize" Cargo.toml files for maximal compatibility # with all versions of Cargo and also rewrite `path` dependencies # to registry (e.g. crates.io) dependencies # # If you believe there's an error in this file please file an # issue against the rust-lang/cargo repository. If you're # editing this file be aware that the upstream Cargo.toml # will likely look very different (and much more reasonable) [package] name = "bitflags" version = "1.2.1" authors = ["The Rust Project Developers"] build = "build.rs" exclude = [".travis.yml", "appveyor.yml", "bors.toml"] description = "A macro to generate structures which behave like bitflags.\n" homepage = "https://github.com/bitflags/bitflags" documentation = "https://docs.rs/bitflags" readme = "README.md" keywords = ["bit", "bitmask", "bitflags", "flags"] categories = ["no-std"] license = "MIT/Apache-2.0" repository = "https://github.com/bitflags/bitflags" [package.metadata.docs.rs] features = ["example_generated"] [features] default = [] example_generated = [] [badges.travis-ci] repository = "bitflags/bitflags" bitflags-1.2.1/Cargo.toml.orig0000644000000022500000000000000116230ustar00# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO # # When uploading crates to the registry Cargo will automatically # "normalize" Cargo.toml files for maximal compatibility # with all versions of Cargo and also rewrite `path` dependencies # to registry (e.g., crates.io) dependencies # # If you believe there's an error in this file please file an # issue against the rust-lang/cargo repository. If you're # editing this file be aware that the upstream Cargo.toml # will likely look very different (and much more reasonable) [package] name = "bitflags" version = "1.2.1" authors = ["The Rust Project Developers"] build = "build.rs" exclude = [".travis.yml", "appveyor.yml", "bors.toml"] description = "A macro to generate structures which behave like bitflags.\n" homepage = "https://github.com/bitflags/bitflags" documentation = "https://docs.rs/bitflags" readme = "README.md" keywords = ["bit", "bitmask", "bitflags", "flags"] categories = ["no-std"] license = "MIT/Apache-2.0" repository = "https://github.com/bitflags/bitflags" [package.metadata.docs.rs] features = ["example_generated"] [features] default = [] example_generated = [] [badges.travis-ci] repository = "bitflags/bitflags" bitflags-1.2.1/CHANGELOG.md010064400007650000024000000112101355073054200133350ustar0000000000000000# 1.2.1 - Remove extraneous `#[inline]` attributes ([#194]) [#194]: https://github.com/bitflags/bitflags/pull/194 # 1.2.0 - Fix typo: {Lower, Upper}Exp - {Lower, Upper}Hex ([#183]) - Add support for "unknown" bits ([#188]) [#183]: https://github.com/rust-lang-nursery/bitflags/pull/183 [#188]: https://github.com/rust-lang-nursery/bitflags/pull/188 # 1.1.0 This is a re-release of `1.0.5`, which was yanked due to a bug in the RLS. # 1.0.5 - Use compiletest_rs flags supported by stable toolchain ([#171]) - Put the user provided attributes first ([#173]) - Make bitflags methods `const` on newer compilers ([#175]) [#171]: https://github.com/rust-lang-nursery/bitflags/pull/171 [#173]: https://github.com/rust-lang-nursery/bitflags/pull/173 [#175]: https://github.com/rust-lang-nursery/bitflags/pull/175 # 1.0.4 - Support Rust 2018 style macro imports ([#165]) ```rust use bitflags::bitflags; ``` [#165]: https://github.com/rust-lang-nursery/bitflags/pull/165 # 1.0.3 - Improve zero value flag handling and documentation ([#157]) [#157]: https://github.com/rust-lang-nursery/bitflags/pull/157 # 1.0.2 - 30% improvement in compile time of bitflags crate ([#156]) - Documentation improvements ([#153]) - Implementation cleanup ([#149]) [#156]: https://github.com/rust-lang-nursery/bitflags/pull/156 [#153]: https://github.com/rust-lang-nursery/bitflags/pull/153 [#149]: https://github.com/rust-lang-nursery/bitflags/pull/149 # 1.0.1 - Add support for `pub(restricted)` specifier on the bitflags struct ([#135]) - Optimize performance of `all()` when called from a separate crate ([#136]) [#135]: https://github.com/rust-lang-nursery/bitflags/pull/135 [#136]: https://github.com/rust-lang-nursery/bitflags/pull/136 # 1.0.0 - **[breaking change]** Macro now generates [associated constants](https://doc.rust-lang.org/reference/items.html#associated-constants) ([#24]) - **[breaking change]** Minimum supported version is Rust **1.20**, due to usage of associated constants - After being broken in 0.9, the `#[deprecated]` attribute is now supported again ([#112]) - Other improvements to unit tests and documentation ([#106] and [#115]) [#24]: https://github.com/rust-lang-nursery/bitflags/pull/24 [#106]: https://github.com/rust-lang-nursery/bitflags/pull/106 [#112]: https://github.com/rust-lang-nursery/bitflags/pull/112 [#115]: https://github.com/rust-lang-nursery/bitflags/pull/115 ## How to update your code to use associated constants Assuming the following structure definition: ```rust bitflags! { struct Something: u8 { const FOO = 0b01, const BAR = 0b10 } } ``` In 0.9 and older you could do: ```rust let x = FOO.bits | BAR.bits; ``` Now you must use: ```rust let x = Something::FOO.bits | Something::BAR.bits; ``` # 0.9.1 - Fix the implementation of `Formatting` traits when other formatting traits were present in scope ([#105]) [#105]: https://github.com/rust-lang-nursery/bitflags/pull/105 # 0.9.0 - **[breaking change]** Use struct keyword instead of flags to define bitflag types ([#84]) - **[breaking change]** Terminate const items with semicolons instead of commas ([#87]) - Implement the `Hex`, `Octal`, and `Binary` formatting traits ([#86]) - Printing an empty flag value with the `Debug` trait now prints "(empty)" instead of nothing ([#85]) - The `bitflags!` macro can now be used inside of a fn body, to define a type local to that function ([#74]) [#74]: https://github.com/rust-lang-nursery/bitflags/pull/74 [#84]: https://github.com/rust-lang-nursery/bitflags/pull/84 [#85]: https://github.com/rust-lang-nursery/bitflags/pull/85 [#86]: https://github.com/rust-lang-nursery/bitflags/pull/86 [#87]: https://github.com/rust-lang-nursery/bitflags/pull/87 # 0.8.2 - Update feature flag used when building bitflags as a dependency of the Rust toolchain # 0.8.1 - Allow bitflags to be used as a dependency of the Rust toolchain # 0.8.0 - Add support for the experimental `i128` and `u128` integer types ([#57]) - Add set method: `flags.set(SOME_FLAG, true)` or `flags.set(SOME_FLAG, false)` ([#55]) This may break code that defines its own set method [#55]: https://github.com/rust-lang-nursery/bitflags/pull/55 [#57]: https://github.com/rust-lang-nursery/bitflags/pull/57 # 0.7.1 *(yanked)* # 0.7.0 - Implement the Extend trait ([#49]) - Allow definitions inside the `bitflags!` macro to refer to items imported from other modules ([#51]) [#49]: https://github.com/rust-lang-nursery/bitflags/pull/49 [#51]: https://github.com/rust-lang-nursery/bitflags/pull/51 # 0.6.0 - The `no_std` feature was removed as it is now the default - The `assignment_operators` feature was remove as it is now enabled by default - Some clippy suggestions have been applied bitflags-1.2.1/CODE_OF_CONDUCT.md010064400007650000024000000062261345301143700143330ustar0000000000000000# Contributor Covenant Code of Conduct ## Our Pledge In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, education, socio-economic status, nationality, personal appearance, race, religion, or sexual identity and orientation. ## Our Standards Examples of behavior that contributes to creating a positive environment include: * Using welcoming and inclusive language * Being respectful of differing viewpoints and experiences * Gracefully accepting constructive criticism * Focusing on what is best for the community * Showing empathy towards other community members Examples of unacceptable behavior by participants include: * The use of sexualized language or imagery and unwelcome sexual attention or advances * Trolling, insulting/derogatory comments, and personal or political attacks * Public or private harassment * Publishing others' private information, such as a physical or electronic address, without explicit permission * Other conduct which could reasonably be considered inappropriate in a professional setting ## Our Responsibilities Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior. 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See the License for the specific language governing permissions and limitations under the License. bitflags-1.2.1/LICENSE-MIT010064400007650000024000000020571345301143700131660ustar0000000000000000Copyright (c) 2014 The Rust Project Developers Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. bitflags-1.2.1/README.md010064400007650000024000000021031345301143700130010ustar0000000000000000bitflags ======== [![Build Status](https://travis-ci.com/bitflags/bitflags.svg?branch=master)](https://travis-ci.com/bitflags/bitflags) [![Join the chat at https://gitter.im/bitflags/Lobby](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/bitflags/Lobby?utm_source=badge&utm_medium=badge&utm_content=badge) [![Latest version](https://img.shields.io/crates/v/bitflags.svg)](https://crates.io/crates/bitflags) [![Documentation](https://docs.rs/bitflags/badge.svg)](https://docs.rs/bitflags) ![Minimum rustc version](https://img.shields.io/badge/rustc-1.20+-yellow.svg) ![License](https://img.shields.io/crates/l/bitflags.svg) A Rust macro to generate structures which behave like a set of bitflags - [Documentation](https://docs.rs/bitflags) - [Release notes](https://github.com/bitflags/bitflags/releases) ## Usage Add this to your `Cargo.toml`: ```toml [dependencies] bitflags = "1.0" ``` and this to your crate root: ```rust #[macro_use] extern crate bitflags; ``` ## Rust Version Support The minimum supported Rust version is 1.20 due to use of associated constants. bitflags-1.2.1/src/example_generated.rs010064400007650000024000000010301345301143700163260ustar0000000000000000//! This module shows an example of code generated by the macro. **IT MUST NOT BE USED OUTSIDE THIS //! CRATE**. bitflags! { /// This is the same `Flags` struct defined in the [crate level example](../index.html#example). /// Note that this struct is just for documentation purposes only, it must not be used outside /// this crate. pub struct Flags: u32 { const A = 0b00000001; const B = 0b00000010; const C = 0b00000100; const ABC = Self::A.bits | Self::B.bits | Self::C.bits; } } bitflags-1.2.1/src/lib.rs010064400007650000024000001236371355073054200134500ustar0000000000000000// Copyright 2014 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // 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 typesafe bitmask flag generator useful for sets of C-style bitmask flags. //! It can be used for creating typesafe wrappers around C APIs. //! //! The `bitflags!` macro generates a `struct` that manages a set of flags. The //! flags should only be defined for integer types, otherwise unexpected type //! errors may occur at compile time. //! //! # Example //! //! ``` //! #[macro_use] //! extern crate bitflags; //! //! bitflags! { //! struct Flags: u32 { //! const A = 0b00000001; //! const B = 0b00000010; //! const C = 0b00000100; //! const ABC = Self::A.bits | Self::B.bits | Self::C.bits; //! } //! } //! //! fn main() { //! let e1 = Flags::A | Flags::C; //! let e2 = Flags::B | Flags::C; //! assert_eq!((e1 | e2), Flags::ABC); // union //! assert_eq!((e1 & e2), Flags::C); // intersection //! assert_eq!((e1 - e2), Flags::A); // set difference //! assert_eq!(!e2, Flags::A); // set complement //! } //! ``` //! //! See [`example_generated::Flags`](./example_generated/struct.Flags.html) for documentation of code //! generated by the above `bitflags!` expansion. //! //! The generated `struct`s can also be extended with type and trait //! implementations: //! //! ``` //! #[macro_use] //! extern crate bitflags; //! //! use std::fmt; //! //! bitflags! { //! struct Flags: u32 { //! const A = 0b00000001; //! const B = 0b00000010; //! } //! } //! //! impl Flags { //! pub fn clear(&mut self) { //! self.bits = 0; // The `bits` field can be accessed from within the //! // same module where the `bitflags!` macro was invoked. //! } //! } //! //! impl fmt::Display for Flags { //! fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { //! write!(f, "hi!") //! } //! } //! //! fn main() { //! let mut flags = Flags::A | Flags::B; //! flags.clear(); //! assert!(flags.is_empty()); //! assert_eq!(format!("{}", flags), "hi!"); //! assert_eq!(format!("{:?}", Flags::A | Flags::B), "A | B"); //! assert_eq!(format!("{:?}", Flags::B), "B"); //! } //! ``` //! //! # Visibility //! //! The generated struct and its associated flag constants are not exported //! out of the current module by default. A definition can be exported out of //! the current module by adding `pub` before `flags`: //! //! ``` //! #[macro_use] //! extern crate bitflags; //! //! mod example { //! bitflags! { //! pub struct Flags1: u32 { //! const A = 0b00000001; //! } //! } //! bitflags! { //! # pub //! struct Flags2: u32 { //! const B = 0b00000010; //! } //! } //! } //! //! fn main() { //! let flag1 = example::Flags1::A; //! let flag2 = example::Flags2::B; // error: const `B` is private //! } //! ``` //! //! # Attributes //! //! Attributes can be attached to the generated `struct` by placing them //! before the `flags` keyword. //! //! # Trait implementations //! //! The `Copy`, `Clone`, `PartialEq`, `Eq`, `PartialOrd`, `Ord` and `Hash` //! traits automatically derived for the `struct` using the `derive` attribute. //! Additional traits can be derived by providing an explicit `derive` //! attribute on `flags`. //! //! The `Extend` and `FromIterator` traits are implemented for the `struct`, //! too: `Extend` adds the union of the instances of the `struct` iterated over, //! while `FromIterator` calculates the union. //! //! The `Binary`, `Debug`, `LowerHex`, `Octal` and `UpperHex` trait is also //! implemented by displaying the bits value of the internal struct. //! //! ## Operators //! //! The following operator traits are implemented for the generated `struct`: //! //! - `BitOr` and `BitOrAssign`: union //! - `BitAnd` and `BitAndAssign`: intersection //! - `BitXor` and `BitXorAssign`: toggle //! - `Sub` and `SubAssign`: set difference //! - `Not`: set complement //! //! # Methods //! //! The following methods are defined for the generated `struct`: //! //! - `empty`: an empty set of flags //! - `all`: the set of all defined flags //! - `bits`: the raw value of the flags currently stored //! - `from_bits`: convert from underlying bit representation, unless that //! representation contains bits that do not correspond to a //! defined flag //! - `from_bits_truncate`: convert from underlying bit representation, dropping //! any bits that do not correspond to defined flags //! - `from_bits_unchecked`: convert from underlying bit representation, keeping //! all bits (even those not corresponding to defined //! flags) //! - `is_empty`: `true` if no flags are currently stored //! - `is_all`: `true` if currently set flags exactly equal all defined flags //! - `intersects`: `true` if there are flags common to both `self` and `other` //! - `contains`: `true` all of the flags in `other` are contained within `self` //! - `insert`: inserts the specified flags in-place //! - `remove`: removes the specified flags in-place //! - `toggle`: the specified flags will be inserted if not present, and removed //! if they are. //! - `set`: inserts or removes the specified flags depending on the passed value //! //! ## Default //! //! The `Default` trait is not automatically implemented for the generated struct. //! //! If your default value is equal to `0` (which is the same value as calling `empty()` //! on the generated struct), you can simply derive `Default`: //! //! ``` //! #[macro_use] //! extern crate bitflags; //! //! bitflags! { //! // Results in default value with bits: 0 //! #[derive(Default)] //! struct Flags: u32 { //! const A = 0b00000001; //! const B = 0b00000010; //! const C = 0b00000100; //! } //! } //! //! fn main() { //! let derived_default: Flags = Default::default(); //! assert_eq!(derived_default.bits(), 0); //! } //! ``` //! //! If your default value is not equal to `0` you need to implement `Default` yourself: //! //! ``` //! #[macro_use] //! extern crate bitflags; //! //! bitflags! { //! struct Flags: u32 { //! const A = 0b00000001; //! const B = 0b00000010; //! const C = 0b00000100; //! } //! } //! //! // explicit `Default` implementation //! impl Default for Flags { //! fn default() -> Flags { //! Flags::A | Flags::C //! } //! } //! //! fn main() { //! let implemented_default: Flags = Default::default(); //! assert_eq!(implemented_default, (Flags::A | Flags::C)); //! } //! ``` //! //! # Zero Flags //! //! Flags with a value equal to zero will have some strange behavior that one should be aware of. //! //! ``` //! #[macro_use] //! extern crate bitflags; //! //! bitflags! { //! struct Flags: u32 { //! const NONE = 0b00000000; //! const SOME = 0b00000001; //! } //! } //! //! fn main() { //! let empty = Flags::empty(); //! let none = Flags::NONE; //! let some = Flags::SOME; //! //! // Zero flags are treated as always present //! assert!(empty.contains(Flags::NONE)); //! assert!(none.contains(Flags::NONE)); //! assert!(some.contains(Flags::NONE)); //! //! // Zero flags will be ignored when testing for emptiness //! assert!(none.is_empty()); //! } //! ``` #![no_std] #![doc(html_root_url = "https://docs.rs/bitflags/1.2.1")] #[cfg(test)] #[macro_use] extern crate std; // Re-export libcore using an alias so that the macros can work without // requiring `extern crate core` downstream. #[doc(hidden)] pub extern crate core as _core; /// The macro used to generate the flag structure. /// /// See the [crate level docs](../bitflags/index.html) for complete documentation. /// /// # Example /// /// ``` /// #[macro_use] /// extern crate bitflags; /// /// bitflags! { /// struct Flags: u32 { /// const A = 0b00000001; /// const B = 0b00000010; /// const C = 0b00000100; /// const ABC = Self::A.bits | Self::B.bits | Self::C.bits; /// } /// } /// /// fn main() { /// let e1 = Flags::A | Flags::C; /// let e2 = Flags::B | Flags::C; /// assert_eq!((e1 | e2), Flags::ABC); // union /// assert_eq!((e1 & e2), Flags::C); // intersection /// assert_eq!((e1 - e2), Flags::A); // set difference /// assert_eq!(!e2, Flags::A); // set complement /// } /// ``` /// /// The generated `struct`s can also be extended with type and trait /// implementations: /// /// ``` /// #[macro_use] /// extern crate bitflags; /// /// use std::fmt; /// /// bitflags! { /// struct Flags: u32 { /// const A = 0b00000001; /// const B = 0b00000010; /// } /// } /// /// impl Flags { /// pub fn clear(&mut self) { /// self.bits = 0; // The `bits` field can be accessed from within the /// // same module where the `bitflags!` macro was invoked. /// } /// } /// /// impl fmt::Display for Flags { /// fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { /// write!(f, "hi!") /// } /// } /// /// fn main() { /// let mut flags = Flags::A | Flags::B; /// flags.clear(); /// assert!(flags.is_empty()); /// assert_eq!(format!("{}", flags), "hi!"); /// assert_eq!(format!("{:?}", Flags::A | Flags::B), "A | B"); /// assert_eq!(format!("{:?}", Flags::B), "B"); /// } /// ``` #[macro_export(local_inner_macros)] macro_rules! bitflags { ( $(#[$outer:meta])* pub struct $BitFlags:ident: $T:ty { $( $(#[$inner:ident $($args:tt)*])* const $Flag:ident = $value:expr; )+ } ) => { __bitflags! { $(#[$outer])* (pub) $BitFlags: $T { $( $(#[$inner $($args)*])* $Flag = $value; )+ } } }; ( $(#[$outer:meta])* struct $BitFlags:ident: $T:ty { $( $(#[$inner:ident $($args:tt)*])* const $Flag:ident = $value:expr; )+ } ) => { __bitflags! { $(#[$outer])* () $BitFlags: $T { $( $(#[$inner $($args)*])* $Flag = $value; )+ } } }; ( $(#[$outer:meta])* pub ($($vis:tt)+) struct $BitFlags:ident: $T:ty { $( $(#[$inner:ident $($args:tt)*])* const $Flag:ident = $value:expr; )+ } ) => { __bitflags! { $(#[$outer])* (pub ($($vis)+)) $BitFlags: $T { $( $(#[$inner $($args)*])* $Flag = $value; )+ } } }; } #[macro_export(local_inner_macros)] #[doc(hidden)] macro_rules! __bitflags { ( $(#[$outer:meta])* ($($vis:tt)*) $BitFlags:ident: $T:ty { $( $(#[$inner:ident $($args:tt)*])* $Flag:ident = $value:expr; )+ } ) => { $(#[$outer])* #[derive(Copy, PartialEq, Eq, Clone, PartialOrd, Ord, Hash)] $($vis)* struct $BitFlags { bits: $T, } __impl_bitflags! { $BitFlags: $T { $( $(#[$inner $($args)*])* $Flag = $value; )+ } } }; } #[macro_export(local_inner_macros)] #[doc(hidden)] #[cfg(bitflags_const_fn)] macro_rules! __fn_bitflags { ( $(# $attr_args:tt)* const fn $($item:tt)* ) => { $(# $attr_args)* const fn $($item)* }; ( $(# $attr_args:tt)* pub const fn $($item:tt)* ) => { $(# $attr_args)* pub const fn $($item)* }; ( $(# $attr_args:tt)* pub const unsafe fn $($item:tt)* ) => { $(# $attr_args)* pub const unsafe fn $($item)* }; } #[macro_export(local_inner_macros)] #[doc(hidden)] #[cfg(not(bitflags_const_fn))] macro_rules! __fn_bitflags { ( $(# $attr_args:tt)* const fn $($item:tt)* ) => { $(# $attr_args)* fn $($item)* }; ( $(# $attr_args:tt)* pub const fn $($item:tt)* ) => { $(# $attr_args)* pub fn $($item)* }; ( $(# $attr_args:tt)* pub const unsafe fn $($item:tt)* ) => { $(# $attr_args)* pub unsafe fn $($item)* }; } #[macro_export(local_inner_macros)] #[doc(hidden)] macro_rules! __impl_bitflags { ( $BitFlags:ident: $T:ty { $( $(#[$attr:ident $($args:tt)*])* $Flag:ident = $value:expr; )+ } ) => { impl $crate::_core::fmt::Debug for $BitFlags { fn fmt(&self, f: &mut $crate::_core::fmt::Formatter) -> $crate::_core::fmt::Result { // This convoluted approach is to handle #[cfg]-based flag // omission correctly. For example it needs to support: // // #[cfg(unix)] const A: Flag = /* ... */; // #[cfg(windows)] const B: Flag = /* ... */; // Unconditionally define a check for every flag, even disabled // ones. #[allow(non_snake_case)] trait __BitFlags { $( #[inline] fn $Flag(&self) -> bool { false } )+ } // Conditionally override the check for just those flags that // are not #[cfg]ed away. impl __BitFlags for $BitFlags { $( __impl_bitflags! { #[allow(deprecated)] #[inline] $(? #[$attr $($args)*])* fn $Flag(&self) -> bool { if Self::$Flag.bits == 0 && self.bits != 0 { false } else { self.bits & Self::$Flag.bits == Self::$Flag.bits } } } )+ } let mut first = true; $( if <$BitFlags as __BitFlags>::$Flag(self) { if !first { f.write_str(" | ")?; } first = false; f.write_str(__bitflags_stringify!($Flag))?; } )+ let extra_bits = self.bits & !$BitFlags::all().bits(); if extra_bits != 0 { if !first { f.write_str(" | ")?; } first = false; f.write_str("0x")?; $crate::_core::fmt::LowerHex::fmt(&extra_bits, f)?; } if first { f.write_str("(empty)")?; } Ok(()) } } impl $crate::_core::fmt::Binary for $BitFlags { fn fmt(&self, f: &mut $crate::_core::fmt::Formatter) -> $crate::_core::fmt::Result { $crate::_core::fmt::Binary::fmt(&self.bits, f) } } impl $crate::_core::fmt::Octal for $BitFlags { fn fmt(&self, f: &mut $crate::_core::fmt::Formatter) -> $crate::_core::fmt::Result { $crate::_core::fmt::Octal::fmt(&self.bits, f) } } impl $crate::_core::fmt::LowerHex for $BitFlags { fn fmt(&self, f: &mut $crate::_core::fmt::Formatter) -> $crate::_core::fmt::Result { $crate::_core::fmt::LowerHex::fmt(&self.bits, f) } } impl $crate::_core::fmt::UpperHex for $BitFlags { fn fmt(&self, f: &mut $crate::_core::fmt::Formatter) -> $crate::_core::fmt::Result { $crate::_core::fmt::UpperHex::fmt(&self.bits, f) } } #[allow(dead_code)] impl $BitFlags { $( $(#[$attr $($args)*])* pub const $Flag: $BitFlags = $BitFlags { bits: $value }; )+ __fn_bitflags! { /// Returns an empty set of flags #[inline] pub const fn empty() -> $BitFlags { $BitFlags { bits: 0 } } } __fn_bitflags! { /// Returns the set containing all flags. #[inline] pub const fn all() -> $BitFlags { // See `Debug::fmt` for why this approach is taken. #[allow(non_snake_case)] trait __BitFlags { $( const $Flag: $T = 0; )+ } impl __BitFlags for $BitFlags { $( __impl_bitflags! { #[allow(deprecated)] $(? #[$attr $($args)*])* const $Flag: $T = Self::$Flag.bits; } )+ } $BitFlags { bits: $(<$BitFlags as __BitFlags>::$Flag)|+ } } } __fn_bitflags! { /// Returns the raw value of the flags currently stored. #[inline] pub const fn bits(&self) -> $T { self.bits } } /// Convert from underlying bit representation, unless that /// representation contains bits that do not correspond to a flag. #[inline] pub fn from_bits(bits: $T) -> $crate::_core::option::Option<$BitFlags> { if (bits & !$BitFlags::all().bits()) == 0 { $crate::_core::option::Option::Some($BitFlags { bits }) } else { $crate::_core::option::Option::None } } __fn_bitflags! { /// Convert from underlying bit representation, dropping any bits /// that do not correspond to flags. #[inline] pub const fn from_bits_truncate(bits: $T) -> $BitFlags { $BitFlags { bits: bits & $BitFlags::all().bits } } } __fn_bitflags! { /// Convert from underlying bit representation, preserving all /// bits (even those not corresponding to a defined flag). #[inline] pub const unsafe fn from_bits_unchecked(bits: $T) -> $BitFlags { $BitFlags { bits } } } __fn_bitflags! { /// Returns `true` if no flags are currently stored. #[inline] pub const fn is_empty(&self) -> bool { self.bits() == $BitFlags::empty().bits() } } __fn_bitflags! { /// Returns `true` if all flags are currently set. #[inline] pub const fn is_all(&self) -> bool { self.bits == $BitFlags::all().bits } } __fn_bitflags! { /// Returns `true` if there are flags common to both `self` and `other`. #[inline] pub const fn intersects(&self, other: $BitFlags) -> bool { !$BitFlags{ bits: self.bits & other.bits}.is_empty() } } __fn_bitflags! { /// Returns `true` all of the flags in `other` are contained within `self`. #[inline] pub const fn contains(&self, other: $BitFlags) -> bool { (self.bits & other.bits) == other.bits } } /// Inserts the specified flags in-place. #[inline] pub fn insert(&mut self, other: $BitFlags) { self.bits |= other.bits; } /// Removes the specified flags in-place. #[inline] pub fn remove(&mut self, other: $BitFlags) { self.bits &= !other.bits; } /// Toggles the specified flags in-place. #[inline] pub fn toggle(&mut self, other: $BitFlags) { self.bits ^= other.bits; } /// Inserts or removes the specified flags depending on the passed value. #[inline] pub fn set(&mut self, other: $BitFlags, value: bool) { if value { self.insert(other); } else { self.remove(other); } } } impl $crate::_core::ops::BitOr for $BitFlags { type Output = $BitFlags; /// Returns the union of the two sets of flags. #[inline] fn bitor(self, other: $BitFlags) -> $BitFlags { $BitFlags { bits: self.bits | other.bits } } } impl $crate::_core::ops::BitOrAssign for $BitFlags { /// Adds the set of flags. #[inline] fn bitor_assign(&mut self, other: $BitFlags) { self.bits |= other.bits; } } impl $crate::_core::ops::BitXor for $BitFlags { type Output = $BitFlags; /// Returns the left flags, but with all the right flags toggled. #[inline] fn bitxor(self, other: $BitFlags) -> $BitFlags { $BitFlags { bits: self.bits ^ other.bits } } } impl $crate::_core::ops::BitXorAssign for $BitFlags { /// Toggles the set of flags. #[inline] fn bitxor_assign(&mut self, other: $BitFlags) { self.bits ^= other.bits; } } impl $crate::_core::ops::BitAnd for $BitFlags { type Output = $BitFlags; /// Returns the intersection between the two sets of flags. #[inline] fn bitand(self, other: $BitFlags) -> $BitFlags { $BitFlags { bits: self.bits & other.bits } } } impl $crate::_core::ops::BitAndAssign for $BitFlags { /// Disables all flags disabled in the set. #[inline] fn bitand_assign(&mut self, other: $BitFlags) { self.bits &= other.bits; } } impl $crate::_core::ops::Sub for $BitFlags { type Output = $BitFlags; /// Returns the set difference of the two sets of flags. #[inline] fn sub(self, other: $BitFlags) -> $BitFlags { $BitFlags { bits: self.bits & !other.bits } } } impl $crate::_core::ops::SubAssign for $BitFlags { /// Disables all flags enabled in the set. #[inline] fn sub_assign(&mut self, other: $BitFlags) { self.bits &= !other.bits; } } impl $crate::_core::ops::Not for $BitFlags { type Output = $BitFlags; /// Returns the complement of this set of flags. #[inline] fn not(self) -> $BitFlags { $BitFlags { bits: !self.bits } & $BitFlags::all() } } impl $crate::_core::iter::Extend<$BitFlags> for $BitFlags { fn extend>(&mut self, iterator: T) { for item in iterator { self.insert(item) } } } impl $crate::_core::iter::FromIterator<$BitFlags> for $BitFlags { fn from_iter>(iterator: T) -> $BitFlags { let mut result = Self::empty(); result.extend(iterator); result } } }; // Every attribute that the user writes on a const is applied to the // corresponding const that we generate, but within the implementation of // Debug and all() we want to ignore everything but #[cfg] attributes. In // particular, including a #[deprecated] attribute on those items would fail // to compile. // https://github.com/bitflags/bitflags/issues/109 // // Input: // // ? #[cfg(feature = "advanced")] // ? #[deprecated(note = "Use somthing else.")] // ? #[doc = r"High quality documentation."] // fn f() -> i32 { /* ... */ } // // Output: // // #[cfg(feature = "advanced")] // fn f() -> i32 { /* ... */ } ( $(#[$filtered:meta])* ? #[cfg $($cfgargs:tt)*] $(? #[$rest:ident $($restargs:tt)*])* fn $($item:tt)* ) => { __impl_bitflags! { $(#[$filtered])* #[cfg $($cfgargs)*] $(? #[$rest $($restargs)*])* fn $($item)* } }; ( $(#[$filtered:meta])* // $next != `cfg` ? #[$next:ident $($nextargs:tt)*] $(? #[$rest:ident $($restargs:tt)*])* fn $($item:tt)* ) => { __impl_bitflags! { $(#[$filtered])* // $next filtered out $(? #[$rest $($restargs)*])* fn $($item)* } }; ( $(#[$filtered:meta])* fn $($item:tt)* ) => { $(#[$filtered])* fn $($item)* }; // Every attribute that the user writes on a const is applied to the // corresponding const that we generate, but within the implementation of // Debug and all() we want to ignore everything but #[cfg] attributes. In // particular, including a #[deprecated] attribute on those items would fail // to compile. // https://github.com/bitflags/bitflags/issues/109 // // const version // // Input: // // ? #[cfg(feature = "advanced")] // ? #[deprecated(note = "Use somthing else.")] // ? #[doc = r"High quality documentation."] // const f: i32 { /* ... */ } // // Output: // // #[cfg(feature = "advanced")] // const f: i32 { /* ... */ } ( $(#[$filtered:meta])* ? #[cfg $($cfgargs:tt)*] $(? #[$rest:ident $($restargs:tt)*])* const $($item:tt)* ) => { __impl_bitflags! { $(#[$filtered])* #[cfg $($cfgargs)*] $(? #[$rest $($restargs)*])* const $($item)* } }; ( $(#[$filtered:meta])* // $next != `cfg` ? #[$next:ident $($nextargs:tt)*] $(? #[$rest:ident $($restargs:tt)*])* const $($item:tt)* ) => { __impl_bitflags! { $(#[$filtered])* // $next filtered out $(? #[$rest $($restargs)*])* const $($item)* } }; ( $(#[$filtered:meta])* const $($item:tt)* ) => { $(#[$filtered])* const $($item)* }; } // Same as std::stringify but callable from __impl_bitflags, which needs to use // local_inner_macros so can only directly call macros from this crate. #[macro_export] #[doc(hidden)] macro_rules! __bitflags_stringify { ($s:ident) => { stringify!($s) }; } #[cfg(feature = "example_generated")] pub mod example_generated; #[cfg(test)] mod tests { use std::collections::hash_map::DefaultHasher; use std::hash::{Hash, Hasher}; bitflags! { #[doc = "> The first principle is that you must not fool yourself — and"] #[doc = "> you are the easiest person to fool."] #[doc = "> "] #[doc = "> - Richard Feynman"] struct Flags: u32 { const A = 0b00000001; #[doc = " macros are way better at generating code than trans is"] const B = 0b00000010; const C = 0b00000100; #[doc = "* cmr bed"] #[doc = "* strcat table"] #[doc = " wait what?"] const ABC = Self::A.bits | Self::B.bits | Self::C.bits; } } bitflags! { struct _CfgFlags: u32 { #[cfg(unix)] const _CFG_A = 0b01; #[cfg(windows)] const _CFG_B = 0b01; #[cfg(unix)] const _CFG_C = Self::_CFG_A.bits | 0b10; } } bitflags! { struct AnotherSetOfFlags: i8 { const ANOTHER_FLAG = -1_i8; } } bitflags! { struct LongFlags: u32 { const LONG_A = 0b1111111111111111; } } #[test] fn test_bits() { assert_eq!(Flags::empty().bits(), 0b00000000); assert_eq!(Flags::A.bits(), 0b00000001); assert_eq!(Flags::ABC.bits(), 0b00000111); assert_eq!(AnotherSetOfFlags::empty().bits(), 0b00); assert_eq!(AnotherSetOfFlags::ANOTHER_FLAG.bits(), !0_i8); } #[test] fn test_from_bits() { assert_eq!(Flags::from_bits(0), Some(Flags::empty())); assert_eq!(Flags::from_bits(0b1), Some(Flags::A)); assert_eq!(Flags::from_bits(0b10), Some(Flags::B)); assert_eq!(Flags::from_bits(0b11), Some(Flags::A | Flags::B)); assert_eq!(Flags::from_bits(0b1000), None); assert_eq!( AnotherSetOfFlags::from_bits(!0_i8), Some(AnotherSetOfFlags::ANOTHER_FLAG) ); } #[test] fn test_from_bits_truncate() { assert_eq!(Flags::from_bits_truncate(0), Flags::empty()); assert_eq!(Flags::from_bits_truncate(0b1), Flags::A); assert_eq!(Flags::from_bits_truncate(0b10), Flags::B); assert_eq!(Flags::from_bits_truncate(0b11), (Flags::A | Flags::B)); assert_eq!(Flags::from_bits_truncate(0b1000), Flags::empty()); assert_eq!(Flags::from_bits_truncate(0b1001), Flags::A); assert_eq!( AnotherSetOfFlags::from_bits_truncate(0_i8), AnotherSetOfFlags::empty() ); } #[test] fn test_from_bits_unchecked() { let extra = unsafe { Flags::from_bits_unchecked(0b1000) }; assert_eq!(unsafe { Flags::from_bits_unchecked(0) }, Flags::empty()); assert_eq!(unsafe { Flags::from_bits_unchecked(0b1) }, Flags::A); assert_eq!(unsafe { Flags::from_bits_unchecked(0b10) }, Flags::B); assert_eq!(unsafe { Flags::from_bits_unchecked(0b11) }, (Flags::A | Flags::B)); assert_eq!(unsafe { Flags::from_bits_unchecked(0b1000) }, (extra | Flags::empty())); assert_eq!(unsafe { Flags::from_bits_unchecked(0b1001) }, (extra | Flags::A)); } #[test] fn test_is_empty() { assert!(Flags::empty().is_empty()); assert!(!Flags::A.is_empty()); assert!(!Flags::ABC.is_empty()); assert!(!AnotherSetOfFlags::ANOTHER_FLAG.is_empty()); } #[test] fn test_is_all() { assert!(Flags::all().is_all()); assert!(!Flags::A.is_all()); assert!(Flags::ABC.is_all()); assert!(AnotherSetOfFlags::ANOTHER_FLAG.is_all()); } #[test] fn test_two_empties_do_not_intersect() { let e1 = Flags::empty(); let e2 = Flags::empty(); assert!(!e1.intersects(e2)); assert!(AnotherSetOfFlags::ANOTHER_FLAG.intersects(AnotherSetOfFlags::ANOTHER_FLAG)); } #[test] fn test_empty_does_not_intersect_with_full() { let e1 = Flags::empty(); let e2 = Flags::ABC; assert!(!e1.intersects(e2)); } #[test] fn test_disjoint_intersects() { let e1 = Flags::A; let e2 = Flags::B; assert!(!e1.intersects(e2)); } #[test] fn test_overlapping_intersects() { let e1 = Flags::A; let e2 = Flags::A | Flags::B; assert!(e1.intersects(e2)); } #[test] fn test_contains() { let e1 = Flags::A; let e2 = Flags::A | Flags::B; assert!(!e1.contains(e2)); assert!(e2.contains(e1)); assert!(Flags::ABC.contains(e2)); assert!(AnotherSetOfFlags::ANOTHER_FLAG.contains(AnotherSetOfFlags::ANOTHER_FLAG)); } #[test] fn test_insert() { let mut e1 = Flags::A; let e2 = Flags::A | Flags::B; e1.insert(e2); assert_eq!(e1, e2); let mut e3 = AnotherSetOfFlags::empty(); e3.insert(AnotherSetOfFlags::ANOTHER_FLAG); assert_eq!(e3, AnotherSetOfFlags::ANOTHER_FLAG); } #[test] fn test_remove() { let mut e1 = Flags::A | Flags::B; let e2 = Flags::A | Flags::C; e1.remove(e2); assert_eq!(e1, Flags::B); let mut e3 = AnotherSetOfFlags::ANOTHER_FLAG; e3.remove(AnotherSetOfFlags::ANOTHER_FLAG); assert_eq!(e3, AnotherSetOfFlags::empty()); } #[test] fn test_operators() { let e1 = Flags::A | Flags::C; let e2 = Flags::B | Flags::C; assert_eq!((e1 | e2), Flags::ABC); // union assert_eq!((e1 & e2), Flags::C); // intersection assert_eq!((e1 - e2), Flags::A); // set difference assert_eq!(!e2, Flags::A); // set complement assert_eq!(e1 ^ e2, Flags::A | Flags::B); // toggle let mut e3 = e1; e3.toggle(e2); assert_eq!(e3, Flags::A | Flags::B); let mut m4 = AnotherSetOfFlags::empty(); m4.toggle(AnotherSetOfFlags::empty()); assert_eq!(m4, AnotherSetOfFlags::empty()); } #[test] fn test_operators_unchecked() { let extra = unsafe { Flags::from_bits_unchecked(0b1000) }; let e1 = Flags::A | Flags::C | extra; let e2 = Flags::B | Flags::C; assert_eq!((e1 | e2), (Flags::ABC | extra)); // union assert_eq!((e1 & e2), Flags::C); // intersection assert_eq!((e1 - e2), (Flags::A | extra)); // set difference assert_eq!(!e2, Flags::A); // set complement assert_eq!(!e1, Flags::B); // set complement assert_eq!(e1 ^ e2, Flags::A | Flags::B | extra); // toggle let mut e3 = e1; e3.toggle(e2); assert_eq!(e3, Flags::A | Flags::B | extra); } #[test] fn test_set() { let mut e1 = Flags::A | Flags::C; e1.set(Flags::B, true); e1.set(Flags::C, false); assert_eq!(e1, Flags::A | Flags::B); } #[test] fn test_assignment_operators() { let mut m1 = Flags::empty(); let e1 = Flags::A | Flags::C; // union m1 |= Flags::A; assert_eq!(m1, Flags::A); // intersection m1 &= e1; assert_eq!(m1, Flags::A); // set difference m1 -= m1; assert_eq!(m1, Flags::empty()); // toggle m1 ^= e1; assert_eq!(m1, e1); } #[cfg(bitflags_const_fn)] #[test] fn test_const_fn() { const _M1: Flags = Flags::empty(); const M2: Flags = Flags::A; assert_eq!(M2, Flags::A); const M3: Flags = Flags::C; assert_eq!(M3, Flags::C); } #[test] fn test_extend() { let mut flags; flags = Flags::empty(); flags.extend([].iter().cloned()); assert_eq!(flags, Flags::empty()); flags = Flags::empty(); flags.extend([Flags::A, Flags::B].iter().cloned()); assert_eq!(flags, Flags::A | Flags::B); flags = Flags::A; flags.extend([Flags::A, Flags::B].iter().cloned()); assert_eq!(flags, Flags::A | Flags::B); flags = Flags::B; flags.extend([Flags::A, Flags::ABC].iter().cloned()); assert_eq!(flags, Flags::ABC); } #[test] fn test_from_iterator() { assert_eq!([].iter().cloned().collect::(), Flags::empty()); assert_eq!( [Flags::A, Flags::B].iter().cloned().collect::(), Flags::A | Flags::B ); assert_eq!( [Flags::A, Flags::ABC].iter().cloned().collect::(), Flags::ABC ); } #[test] fn test_lt() { let mut a = Flags::empty(); let mut b = Flags::empty(); assert!(!(a < b) && !(b < a)); b = Flags::B; assert!(a < b); a = Flags::C; assert!(!(a < b) && b < a); b = Flags::C | Flags::B; assert!(a < b); } #[test] fn test_ord() { let mut a = Flags::empty(); let mut b = Flags::empty(); assert!(a <= b && a >= b); a = Flags::A; assert!(a > b && a >= b); assert!(b < a && b <= a); b = Flags::B; assert!(b > a && b >= a); assert!(a < b && a <= b); } fn hash(t: &T) -> u64 { let mut s = DefaultHasher::new(); t.hash(&mut s); s.finish() } #[test] fn test_hash() { let mut x = Flags::empty(); let mut y = Flags::empty(); assert_eq!(hash(&x), hash(&y)); x = Flags::all(); y = Flags::ABC; assert_eq!(hash(&x), hash(&y)); } #[test] fn test_debug() { assert_eq!(format!("{:?}", Flags::A | Flags::B), "A | B"); assert_eq!(format!("{:?}", Flags::empty()), "(empty)"); assert_eq!(format!("{:?}", Flags::ABC), "A | B | C | ABC"); let extra = unsafe { Flags::from_bits_unchecked(0xb8) }; assert_eq!(format!("{:?}", extra), "0xb8"); assert_eq!(format!("{:?}", Flags::A | extra), "A | 0xb8"); assert_eq!(format!("{:?}", Flags::ABC | extra), "A | B | C | ABC | 0xb8"); } #[test] fn test_binary() { assert_eq!(format!("{:b}", Flags::ABC), "111"); assert_eq!(format!("{:#b}", Flags::ABC), "0b111"); let extra = unsafe { Flags::from_bits_unchecked(0b1010000) }; assert_eq!(format!("{:b}", Flags::ABC | extra), "1010111"); assert_eq!(format!("{:#b}", Flags::ABC | extra), "0b1010111"); } #[test] fn test_octal() { assert_eq!(format!("{:o}", LongFlags::LONG_A), "177777"); assert_eq!(format!("{:#o}", LongFlags::LONG_A), "0o177777"); let extra = unsafe { LongFlags::from_bits_unchecked(0o5000000) }; assert_eq!(format!("{:o}", LongFlags::LONG_A | extra), "5177777"); assert_eq!(format!("{:#o}", LongFlags::LONG_A | extra), "0o5177777"); } #[test] fn test_lowerhex() { assert_eq!(format!("{:x}", LongFlags::LONG_A), "ffff"); assert_eq!(format!("{:#x}", LongFlags::LONG_A), "0xffff"); let extra = unsafe { LongFlags::from_bits_unchecked(0xe00000) }; assert_eq!(format!("{:x}", LongFlags::LONG_A | extra), "e0ffff"); assert_eq!(format!("{:#x}", LongFlags::LONG_A | extra), "0xe0ffff"); } #[test] fn test_upperhex() { assert_eq!(format!("{:X}", LongFlags::LONG_A), "FFFF"); assert_eq!(format!("{:#X}", LongFlags::LONG_A), "0xFFFF"); let extra = unsafe { LongFlags::from_bits_unchecked(0xe00000) }; assert_eq!(format!("{:X}", LongFlags::LONG_A | extra), "E0FFFF"); assert_eq!(format!("{:#X}", LongFlags::LONG_A | extra), "0xE0FFFF"); } mod submodule { bitflags! { pub struct PublicFlags: i8 { const X = 0; } } bitflags! { struct PrivateFlags: i8 { const Y = 0; } } #[test] fn test_private() { let _ = PrivateFlags::Y; } } #[test] fn test_public() { let _ = submodule::PublicFlags::X; } mod t1 { mod foo { pub type Bar = i32; } bitflags! { /// baz struct Flags: foo::Bar { const A = 0b00000001; #[cfg(foo)] const B = 0b00000010; #[cfg(foo)] const C = 0b00000010; } } } #[test] fn test_in_function() { bitflags! { struct Flags: u8 { const A = 1; #[cfg(any())] // false const B = 2; } } assert_eq!(Flags::all(), Flags::A); assert_eq!(format!("{:?}", Flags::A), "A"); } #[test] fn test_deprecated() { bitflags! { pub struct TestFlags: u32 { #[deprecated(note = "Use something else.")] const ONE = 1; } } } #[test] fn test_pub_crate() { mod module { bitflags! { pub (crate) struct Test: u8 { const FOO = 1; } } } assert_eq!(module::Test::FOO.bits(), 1); } #[test] fn test_pub_in_module() { mod module { mod submodule { bitflags! { // `pub (in super)` means only the module `module` will // be able to access this. pub (in super) struct Test: u8 { const FOO = 1; } } } mod test { // Note: due to `pub (in super)`, // this cannot be accessed directly by the testing code. pub(super) fn value() -> u8 { super::submodule::Test::FOO.bits() } } pub fn value() -> u8 { test::value() } } assert_eq!(module::value(), 1) } #[test] fn test_zero_value_flags() { bitflags! { struct Flags: u32 { const NONE = 0b0; const SOME = 0b1; } } assert!(Flags::empty().contains(Flags::NONE)); assert!(Flags::SOME.contains(Flags::NONE)); assert!(Flags::NONE.is_empty()); assert_eq!(format!("{:?}", Flags::empty()), "NONE"); assert_eq!(format!("{:?}", Flags::SOME), "SOME"); } } bitflags-1.2.1/.cargo_vcs_info.json0000644000000001120000000000000126610ustar00{ "git": { "sha1": "30668016aca6bd3b02c766e8347e0b4080d4c296" } }