num_enum-0.5.7/.cargo_vcs_info.json0000644000000001460000000000100126710ustar { "git": { "sha1": "d05284f5741ce559040887cd350a0b1d99b3a1a5" }, "path_in_vcs": "num_enum" }num_enum-0.5.7/Cargo.toml0000644000000030570000000000100106730ustar # 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 are reading this file be aware that the original Cargo.toml # will likely look very different (and much more reasonable). # See Cargo.toml.orig for the original contents. [package] edition = "2018" name = "num_enum" version = "0.5.7" authors = ["Daniel Wagner-Hall ", "Daniel Henry-Mantilla ", "Vincent Esche "] description = "Procedural macros to make inter-operation between primitives and enums easier." readme = "README.md" keywords = ["enum", "conversion", "safe", "ffi", "derive"] categories = ["rust-patterns"] license = "BSD-3-Clause OR MIT OR Apache-2.0" repository = "https://github.com/illicitonion/num_enum" [package.metadata.docs.rs] features = ["external_doc"] [dependencies.num_enum_derive] version = "0.5.7" default-features = false [dev-dependencies.anyhow] version = "1" [dev-dependencies.rustversion] version = "1.0" [dev-dependencies.trybuild] version = "1.0.31" [dev-dependencies.walkdir] version = "2.3.1" [features] complex-expressions = ["num_enum_derive/complex-expressions"] default = ["std"] external_doc = [] nightly = [] std = ["num_enum_derive/std"] [badges.maintenance] status = "passively-maintained" [badges.travis-ci] branch = "master" repository = "illicitonion/num_enum" num_enum-0.5.7/Cargo.toml.orig000064400000000000000000000022070072674642500144000ustar 00000000000000[package] name = "num_enum" version = "0.5.7" # Keep in sync with num_enum_derive. authors = [ "Daniel Wagner-Hall ", "Daniel Henry-Mantilla ", "Vincent Esche ", ] description = "Procedural macros to make inter-operation between primitives and enums easier." edition = "2018" repository = "https://github.com/illicitonion/num_enum" readme = "README.md" keywords = ["enum", "conversion", "safe", "ffi", "derive"] categories = ["rust-patterns"] license = "BSD-3-Clause OR MIT OR Apache-2.0" [features] std = ["num_enum_derive/std"] complex-expressions = ["num_enum_derive/complex-expressions"] external_doc = [] nightly = [] default = ["std"] # disable to use in a `no_std` environment [package.metadata.docs.rs] features = ["external_doc"] [badges] travis-ci = { repository = "illicitonion/num_enum", branch = "master" } maintenance = { status = "passively-maintained" } [dependencies] num_enum_derive = { version = "0.5.7", path = "../num_enum_derive", default-features = false } [dev-dependencies] anyhow = "1" rustversion = "1.0" trybuild = "1.0.31" walkdir = "2.3.1" num_enum-0.5.7/LICENSE-APACHE000064400000000000000000000227730072674642500134470ustar 00000000000000 Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. 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While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. END OF TERMS AND CONDITIONS num_enum-0.5.7/LICENSE-BSD000064400000000000000000000027140072674642500131270ustar 00000000000000Copyright (c) 2018, Daniel Wagner-Hall All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of num_enum nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. num_enum-0.5.7/LICENSE-MIT000064400000000000000000000017770072674642500131600ustar 00000000000000Permission 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. num_enum-0.5.7/README.md000064400000000000000000000125030072674642500127700ustar 00000000000000num_enum ======== Procedural macros to make inter-operation between primitives and enums easier. This crate is no_std compatible. [![crates.io](https://img.shields.io/crates/v/num_enum.svg)](https://crates.io/crates/num_enum) [![Documentation](https://docs.rs/num_enum/badge.svg)](https://docs.rs/num_enum) [![Build Status](https://travis-ci.org/illicitonion/num_enum.svg?branch=master)](https://travis-ci.org/illicitonion/num_enum) Turning an enum into a primitive -------------------------------- ```rust use num_enum::IntoPrimitive; #[derive(IntoPrimitive)] #[repr(u8)] enum Number { Zero, One, } fn main() { let zero: u8 = Number::Zero.into(); assert_eq!(zero, 0u8); } ``` `num_enum`'s `IntoPrimitive` is more type-safe than using `as`, because `as` will silently truncate - `num_enum` only derives `From` for exactly the discriminant type of the enum. Attempting to turn a primitive into an enum with try_from ---------------------------------------------- ```rust use num_enum::TryFromPrimitive; use std::convert::TryFrom; #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] enum Number { Zero, One, } fn main() { let zero = Number::try_from(0u8); assert_eq!(zero, Ok(Number::Zero)); let three = Number::try_from(3u8); assert_eq!( three.unwrap_err().to_string(), "No discriminant in enum `Number` matches the value `3`", ); } ``` Variant alternatives --------------- Sometimes a single enum variant might be representable by multiple numeric values. The `#[num_enum(alternatives = [..])]` attribute allows you to define additional value alternatives for individual variants. (The behavior of `IntoPrimitive` is unaffected by this attribute, it will always return the canonical value.) ```rust use num_enum::TryFromPrimitive; use std::convert::TryFrom; #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] enum Number { Zero = 0, #[num_enum(alternatives = [2])] OneOrTwo = 1, } fn main() { let zero = Number::try_from(0u8); assert_eq!(zero, Ok(Number::Zero)); let one = Number::try_from(1u8); assert_eq!(one, Ok(Number::OneOrTwo)); let two = Number::try_from(2u8); assert_eq!(two, Ok(Number::OneOrTwo)); let three = Number::try_from(3u8); assert_eq!( three.unwrap_err().to_string(), "No discriminant in enum `Number` matches the value `3`", ); } ``` Default variant --------------- Sometimes it is desirable to have an `Other` variant in an enum that acts as a kind of a wildcard matching all the value not yet covered by other variants. The `#[num_enum(default)]` attribute allows you to mark variant as the default. (The behavior of `IntoPrimitive` is unaffected by this attribute, it will always return the canonical value.) ```rust use num_enum::TryFromPrimitive; use std::convert::TryFrom; #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] enum Number { Zero = 0, #[num_enum(default)] NonZero = 1, } fn main() { let zero = Number::try_from(0u8); assert_eq!(zero, Ok(Number::Zero)); let one = Number::try_from(1u8); assert_eq!(one, Ok(Number::NonZero)); let two = Number::try_from(2u8); assert_eq!(two, Ok(Number::NonZero)); } ``` Safely turning a primitive into an exhaustive enum with from_primitive ------------------------------------------------------------- If your enum has all possible primitive values covered by the use of a variant marked `#[num_enum(default)]`, you can derive `FromPrimitive` for it (which auto-implement stdlib's `From`): ```rust use num_enum::FromPrimitive; #[derive(Debug, Eq, PartialEq, FromPrimitive)] #[repr(u8)] enum Number { Zero, #[num_enum(default)] NonZero, } fn main() { assert_eq!( Number::Zero, Number::from(0_u8), ); assert_eq!( Number::NonZero, Number::from(1_u8), ); } ``` Unsafely turning a primitive into an enum with from_unchecked ------------------------------------------------------------- If you're really certain a conversion will succeed (and have not made use of `#[num_enum(default)]` or `#[num_enum(alternatives = [..])]` for any of its variants), and want to avoid a small amount of overhead, you can use unsafe code to do this conversion. Unless you have data showing that the match statement generated in the `try_from` above is a bottleneck for you, you should avoid doing this, as the unsafe code has potential to cause serious memory issues in your program. ```rust use num_enum::UnsafeFromPrimitive; #[derive(Debug, Eq, PartialEq, UnsafeFromPrimitive)] #[repr(u8)] enum Number { Zero, One, } fn main() { assert_eq!( unsafe { Number::from_unchecked(0_u8) }, Number::Zero, ); assert_eq!( unsafe { Number::from_unchecked(1_u8) }, Number::One, ); } unsafe fn undefined_behavior() { let _ = Number::from_unchecked(2); // 2 is not a valid discriminant! } ``` Optional features ----------------- Some enum values may be composed of complex expressions, for example: ```rust enum Number { Zero = (0, 1).0, One = (0, 1).1, } ``` To cut down on compile time, these are not supported by default, but if you enable the `complex-expressions` feature of your dependency on `num_enum`, these should start working. License ------- num_enum may be used under your choice of the BSD 3-clause, Apache 2, or MIT license. num_enum-0.5.7/src/lib.rs000064400000000000000000000041320072674642500134130ustar 00000000000000// Wrap this in two cfg_attrs so that it continues to parse pre-1.54.0. // See https://github.com/rust-lang/rust/issues/82768 #![cfg_attr(feature = "external_doc", cfg_attr(all(), doc = include_str!("../README.md")))] #![cfg_attr( not(feature = "external_doc"), doc = "See for more info about this crate." )] #![cfg_attr(not(feature = "std"), no_std)] pub use ::num_enum_derive::{ Default, FromPrimitive, IntoPrimitive, TryFromPrimitive, UnsafeFromPrimitive, }; use ::core::fmt; pub trait FromPrimitive: Sized { type Primitive: Copy + Eq; fn from_primitive(number: Self::Primitive) -> Self; } pub trait TryFromPrimitive: Sized { type Primitive: Copy + Eq + fmt::Debug; const NAME: &'static str; fn try_from_primitive(number: Self::Primitive) -> Result>; } pub struct TryFromPrimitiveError { pub number: Enum::Primitive, } impl Copy for TryFromPrimitiveError {} impl Clone for TryFromPrimitiveError { fn clone(&self) -> Self { TryFromPrimitiveError { number: self.number, } } } impl Eq for TryFromPrimitiveError {} impl PartialEq for TryFromPrimitiveError { fn eq(&self, other: &Self) -> bool { self.number == other.number } } impl fmt::Debug for TryFromPrimitiveError { fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { fmt.debug_struct("TryFromPrimitiveError") .field("number", &self.number) .finish() } } impl fmt::Display for TryFromPrimitiveError { fn fmt(&self, stream: &'_ mut fmt::Formatter<'_>) -> fmt::Result { write!( stream, "No discriminant in enum `{name}` matches the value `{input:?}`", name = Enum::NAME, input = self.number, ) } } #[cfg(feature = "std")] impl ::std::error::Error for TryFromPrimitiveError {} num_enum-0.5.7/tests/default.rs000064400000000000000000000013230072674642500146430ustar 00000000000000// Guard against https://github.com/illicitonion/num_enum/issues/27 mod alloc {} mod core {} mod num_enum {} mod std {} #[test] fn default() { #[derive(Debug, Eq, PartialEq, ::num_enum::Default)] #[repr(u8)] enum Enum { #[allow(unused)] Zero = 0, #[num_enum(default)] NonZero = 1, } assert_eq!(Enum::NonZero, ::default()); } #[test] fn default_standard_default_attribute() { #[derive(Debug, Eq, PartialEq, ::num_enum::Default)] #[repr(u8)] enum Enum { #[allow(unused)] Zero = 0, #[default] NonZero = 1, } assert_eq!(Enum::NonZero, ::default()); } num_enum-0.5.7/tests/from_primitive.rs000064400000000000000000000045420072674642500162600ustar 00000000000000#![cfg_attr(feature = "nightly", feature(arbitrary_enum_discriminant))] use ::std::convert::TryFrom; use ::num_enum::{FromPrimitive, TryFromPrimitive}; // Guard against https://github.com/illicitonion/num_enum/issues/27 mod alloc {} mod core {} mod num_enum {} mod std {} #[test] fn has_from_primitive_number() { #[derive(Debug, Eq, PartialEq, FromPrimitive)] #[repr(u8)] enum Enum { Zero = 0, #[num_enum(default)] NonZero = 1, } let zero = Enum::from_primitive(0_u8); assert_eq!(zero, Enum::Zero); let one = Enum::from_primitive(1_u8); assert_eq!(one, Enum::NonZero); let two = Enum::from_primitive(2_u8); assert_eq!(two, Enum::NonZero); } #[test] fn has_from_primitive_number_standard_default_attribute() { #[derive(Debug, Eq, PartialEq, FromPrimitive)] #[repr(u8)] enum Enum { Zero = 0, #[default] NonZero = 1, } let zero = Enum::from_primitive(0_u8); assert_eq!(zero, Enum::Zero); let one = Enum::from_primitive(1_u8); assert_eq!(one, Enum::NonZero); let two = Enum::from_primitive(2_u8); assert_eq!(two, Enum::NonZero); } #[test] fn from_primitive_number() { #[derive(Debug, Eq, PartialEq, FromPrimitive)] #[repr(u8)] enum Enum { #[num_enum(default)] Whatever = 0, } // #[derive(FromPrimitive)] generates implementations for the following traits: // // - `FromPrimitive` // - `From` // - `TryFromPrimitive` // - `TryFrom` let from_primitive = Enum::from_primitive(0_u8); assert_eq!(from_primitive, Enum::Whatever); let from = Enum::from(0_u8); assert_eq!(from, Enum::Whatever); let try_from_primitive = Enum::try_from_primitive(0_u8); assert_eq!(try_from_primitive, Ok(Enum::Whatever)); let try_from = Enum::try_from(0_u8); assert_eq!(try_from, Ok(Enum::Whatever)); } #[test] #[cfg(feature = "nightly")] fn from_primitive_number_catch_all() { #[derive(Debug, Eq, PartialEq, FromPrimitive)] #[repr(u8)] enum Enum { Zero = 0, #[num_enum(catch_all)] NonZero(u8), } let zero = Enum::from_primitive(0_u8); assert_eq!(zero, Enum::Zero); let one = Enum::from_primitive(1_u8); assert_eq!(one, Enum::NonZero(1_u8)); let two = Enum::from_primitive(2_u8); assert_eq!(two, Enum::NonZero(2_u8)); } num_enum-0.5.7/tests/into_primitive.rs000064400000000000000000000016620072674642500162660ustar 00000000000000#![cfg_attr(feature = "nightly", feature(arbitrary_enum_discriminant))] use ::num_enum::IntoPrimitive; // Guard against https://github.com/illicitonion/num_enum/issues/27 mod alloc {} mod core {} mod num_enum {} mod std {} #[derive(IntoPrimitive)] #[repr(u8)] enum Enum { Zero, One, Two, } #[test] fn simple() { let zero: u8 = Enum::Zero.into(); assert_eq!(zero, 0u8); let one: u8 = Enum::One.into(); assert_eq!(one, 1u8); let two: u8 = Enum::Two.into(); assert_eq!(two, 2u8); } #[test] #[cfg(feature = "nightly")] fn catch_all() { #[derive(Debug, Eq, PartialEq, IntoPrimitive)] #[repr(u8)] enum Enum { Zero = 0, #[num_enum(catch_all)] NonZero(u8), } let zero: u8 = Enum::Zero.into(); assert_eq!(zero, 0u8); let one: u8 = Enum::NonZero(1u8).into(); assert_eq!(one, 1u8); let two: u8 = Enum::NonZero(2u8).into(); assert_eq!(two, 2u8); } num_enum-0.5.7/tests/renamed_num_enum.rs000064400000000000000000000013210072674642500165330ustar 00000000000000#[test] fn no_std() { assert!(::std::process::Command::new("cargo") .args(&[ "run", "--manifest-path", concat!( env!("CARGO_MANIFEST_DIR"), "/../renamed_num_enum/Cargo.toml", ), ]) .status() .unwrap() .success()) } #[test] fn std() { assert!(::std::process::Command::new("cargo") .args(&[ "run", "--manifest-path", concat!( env!("CARGO_MANIFEST_DIR"), "/../renamed_num_enum/Cargo.toml", ), "--features", "std", ]) .status() .unwrap() .success()) } num_enum-0.5.7/tests/try_build/compile_fail/conflicting_derive.rs000064400000000000000000000002300072674642500234700ustar 00000000000000#[derive(num_enum::FromPrimitive, num_enum::TryFromPrimitive)] #[repr(u8)] enum Numbers { Zero, #[num_enum(default)] One, } fn main() { } num_enum-0.5.7/tests/try_build/compile_fail/conflicting_derive.stderr000064400000000000000000000020430072674642500243530ustar 00000000000000error[E0119]: conflicting implementations of trait `num_enum::TryFromPrimitive` for type `Numbers` --> $DIR/conflicting_derive.rs:1:35 | 1 | #[derive(num_enum::FromPrimitive, num_enum::TryFromPrimitive)] | ----------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Numbers` | | | first implementation here | = note: this error originates in the derive macro `num_enum::TryFromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0119]: conflicting implementations of trait `std::convert::TryFrom` for type `Numbers` --> $DIR/conflicting_derive.rs:1:35 | 1 | #[derive(num_enum::FromPrimitive, num_enum::TryFromPrimitive)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: conflicting implementation in crate `core`: - impl TryFrom for T where U: Into; = note: this error originates in the derive macro `num_enum::TryFromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info) num_enum-0.5.7/tests/try_build/compile_fail/exhaustive_enum.rs000064400000000000000000000035710072674642500230570ustar 00000000000000#[derive(num_enum::FromPrimitive)] #[repr(u8)] enum ExhaustiveFrom { #[num_enum(alternatives = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15])] A = 0, #[num_enum(alternatives = [17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31])] B = 16, #[num_enum(alternatives = [33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47])] C = 32, #[num_enum(alternatives = [49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63])] D = 48, #[num_enum(alternatives = [65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79])] E = 64, #[num_enum(alternatives = [81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95])] F = 80, #[num_enum(alternatives = [97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111])] G = 96, #[num_enum(alternatives = [113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127])] H = 112, #[num_enum(alternatives = [129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143])] I = 128, #[num_enum(alternatives = [145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159])] J = 144, #[num_enum(alternatives = [161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175])] K = 160, #[num_enum(alternatives = [177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191])] L = 176, #[num_enum(alternatives = [193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207])] M = 192, #[num_enum(alternatives = [209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223])] N = 208, #[num_enum(alternatives = [225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239])] O = 224, #[num_enum(alternatives = [241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255])] P = 240, } fn main() { } num_enum-0.5.7/tests/try_build/compile_fail/exhaustive_enum.stderr000064400000000000000000000006030072674642500237270ustar 00000000000000error: #[derive(FromPrimitive)] requires a variant marked with `#[default]`, `#[num_enum(default)]`, or `#[num_enum(catch_all)` --> $DIR/exhaustive_enum.rs:1:10 | 1 | #[derive(num_enum::FromPrimitive)] | ^^^^^^^^^^^^^^^^^^^^^^^ | = note: this error originates in the derive macro `num_enum::FromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info) num_enum-0.5.7/tests/try_build/compile_fail/garbage_attribute.rs000064400000000000000000000002240072674642500233110ustar 00000000000000#[derive(num_enum::TryFromPrimitive)] #[repr(u8)] enum Numbers { Zero = 0, #[num_enum(garbage)] One = 1, Two = 2, } fn main() { } num_enum-0.5.7/tests/try_build/compile_fail/garbage_attribute.stderr000064400000000000000000000002630072674642500241730ustar 00000000000000error: Invalid attribute: expected one of: `default`, `catch_all`, `alternatives` --> $DIR/garbage_attribute.rs:5:5 | 5 | #[num_enum(garbage)] | ^^^^^^^^^^^^^^^^^^^^ num_enum-0.5.7/tests/try_build/compile_fail/missing_default.rs000064400000000000000000000001540072674642500230150ustar 00000000000000#[derive(num_enum::FromPrimitive)] #[repr(u8)] enum Numbers { Zero, One, Two, } fn main() { } num_enum-0.5.7/tests/try_build/compile_fail/missing_default.stderr000064400000000000000000000006030072674642500236730ustar 00000000000000error: #[derive(FromPrimitive)] requires a variant marked with `#[default]`, `#[num_enum(default)]`, or `#[num_enum(catch_all)` --> $DIR/missing_default.rs:1:10 | 1 | #[derive(num_enum::FromPrimitive)] | ^^^^^^^^^^^^^^^^^^^^^^^ | = note: this error originates in the derive macro `num_enum::FromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info) num_enum-0.5.7/tests/try_build/compile_fail/missing_repr.rs000064400000000000000000000001250072674642500223370ustar 00000000000000#[derive(num_enum::IntoPrimitive)] enum Numbers { Zero, One, } fn main() {} num_enum-0.5.7/tests/try_build/compile_fail/missing_repr.stderr000064400000000000000000000004560072674642500232250ustar 00000000000000error: Missing `#[repr({Integer})]` attribute --> $DIR/missing_repr.rs:1:10 | 1 | #[derive(num_enum::IntoPrimitive)] | ^^^^^^^^^^^^^^^^^^^^^^^ | = note: this error originates in the derive macro `num_enum::IntoPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info) num_enum-0.5.7/tests/try_build/compile_fail/multiple_defaults.rs000064400000000000000000000002460072674642500233640ustar 00000000000000#[derive(num_enum::FromPrimitive, num_enum::TryFromPrimitive)] #[repr(u8)] enum Numbers { Zero, #[default] One, #[default] Two, } fn main() { } num_enum-0.5.7/tests/try_build/compile_fail/multiple_defaults.stderr000064400000000000000000000002320072674642500242360ustar 00000000000000error: Multiple variants marked `#[default]` or `#[num_enum(default)]` found --> $DIR/multiple_defaults.rs:7:5 | 7 | #[default] | ^^^^^^^^^^ num_enum-0.5.7/tests/try_build/compile_fail/multiple_defaults_different_kinds.rs000064400000000000000000000002600072674642500265760ustar 00000000000000#[derive(num_enum::FromPrimitive, num_enum::TryFromPrimitive)] #[repr(u8)] enum Numbers { Zero, #[default] One, #[num_enum(default)] Two, } fn main() { } num_enum-0.5.7/tests/try_build/compile_fail/multiple_defaults_different_kinds.stderr000064400000000000000000000002750072674642500274630ustar 00000000000000error: Multiple variants marked `#[default]` or `#[num_enum(default)]` found --> $DIR/multiple_defaults_different_kinds.rs:7:16 | 7 | #[num_enum(default)] | ^^^^^^^ num_enum-0.5.7/tests/try_build/compile_fail/multiple_num_enum_defaults.rs000064400000000000000000000002720072674642500252660ustar 00000000000000#[derive(num_enum::FromPrimitive, num_enum::TryFromPrimitive)] #[repr(u8)] enum Numbers { Zero, #[num_enum(default)] One, #[num_enum(default)] Two, } fn main() { } num_enum-0.5.7/tests/try_build/compile_fail/multiple_num_enum_defaults.stderr000064400000000000000000000002660072674642500261500ustar 00000000000000error: Multiple variants marked `#[default]` or `#[num_enum(default)]` found --> $DIR/multiple_num_enum_defaults.rs:7:16 | 7 | #[num_enum(default)] | ^^^^^^^ num_enum-0.5.7/tests/try_build/compile_fail/repr_c.rs000064400000000000000000000001400072674642500211050ustar 00000000000000#[derive(num_enum::IntoPrimitive)] #[repr(C)] enum Numbers { Zero, One, } fn main() {} num_enum-0.5.7/tests/try_build/compile_fail/repr_c.stderr000064400000000000000000000001500072674642500217650ustar 00000000000000error: repr(C) doesn't have a well defined size --> $DIR/repr_c.rs:2:8 | 2 | #[repr(C)] | ^ num_enum-0.5.7/tests/try_build/compile_fail/unpexpected_alternatives.rs000064400000000000000000000002150072674642500247430ustar 00000000000000#[derive(num_enum::UnsafeFromPrimitive)] #[repr(u8)] enum Numbers { Zero, #[num_enum(alternatives = [2])] One, } fn main() { } num_enum-0.5.7/tests/try_build/compile_fail/unpexpected_alternatives.stderr000064400000000000000000000003210072674642500256200ustar 00000000000000error: #[derive(UnsafeFromPrimitive)] does not support `#[num_enum(alternatives = [..])]` --> $DIR/unpexpected_alternatives.rs:5:16 | 5 | #[num_enum(alternatives = [2])] | ^^^^^^^^^^^^ num_enum-0.5.7/tests/try_build/compile_fail/unpexpected_default.rs000064400000000000000000000002070072674642500236670ustar 00000000000000#[derive(num_enum::UnsafeFromPrimitive)] #[repr(u8)] enum Numbers { Zero, #[num_enum(default)] NoneZero, } fn main() { } num_enum-0.5.7/tests/try_build/compile_fail/unpexpected_default.stderr000064400000000000000000000002600072674642500245450ustar 00000000000000error: #[derive(UnsafeFromPrimitive)] does not support `#[num_enum(default)]` --> $DIR/unpexpected_default.rs:5:16 | 5 | #[num_enum(default)] | ^^^^^^^ num_enum-0.5.7/tests/try_build/compile_fail/unreachable_patterns.rs000064400000000000000000000002370072674642500240330ustar 00000000000000#[derive(num_enum::TryFromPrimitive)] #[repr(u8)] enum Numbers { Zero = 0, #[num_enum(alternatives = [2])] One = 1, Two = 2, } fn main() { } num_enum-0.5.7/tests/try_build/compile_fail/unreachable_patterns.stderr000064400000000000000000000006300072674642500247070ustar 00000000000000error: unreachable pattern --> $DIR/unreachable_patterns.rs:7:5 | 7 | Two = 2, | ^^^ | note: the lint level is defined here --> $DIR/unreachable_patterns.rs:1:10 | 1 | #[derive(num_enum::TryFromPrimitive)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the derive macro `num_enum::TryFromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info) num_enum-0.5.7/tests/try_build/compile_fail/variants_with_fields.rs000064400000000000000000000005740072674642500240560ustar 00000000000000use num_enum::{FromPrimitive, IntoPrimitive, TryFromPrimitive}; #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] enum Number { Zero, NonZero(u8), } #[derive(Debug, Eq, PartialEq, FromPrimitive)] #[repr(u8)] enum Colour { Red { intensity: u8 }, } #[derive(Debug, Eq, PartialEq, IntoPrimitive)] #[repr(u8)] enum Meaningless { Beep(), } fn main() {} num_enum-0.5.7/tests/try_build/compile_fail/variants_with_fields.stderr000064400000000000000000000011620072674642500247270ustar 00000000000000error: `num_enum` only supports unit variants (with no associated data), but `Number::NonZero` was not a unit variant. --> $DIR/variants_with_fields.rs:7:5 | 7 | NonZero(u8), | ^^^^^^^^^^^ error: `num_enum` only supports unit variants (with no associated data), but `Colour::Red` was not a unit variant. --> $DIR/variants_with_fields.rs:13:5 | 13 | Red { intensity: u8 }, | ^^^^^^^^^^^^^^^^^^^^^ error: `num_enum` only supports unit variants (with no associated data), but `Meaningless::Beep` was not a unit variant. --> $DIR/variants_with_fields.rs:19:5 | 19 | Beep(), | ^^^^^^ num_enum-0.5.7/tests/try_build/nightly/compile_fail/catch_all_multiple_fields.rs000064400000000000000000000003110072674642500264640ustar 00000000000000#![feature(arbitrary_enum_discriminant)] #[derive(Debug, Eq, PartialEq, num_enum::FromPrimitive)] #[repr(u8)] enum Enum { Zero = 0, #[num_enum(catch_all)] NonZero(u8, u8), } fn main() {} num_enum-0.5.7/tests/try_build/nightly/compile_fail/catch_all_multiple_fields.stderr000064400000000000000000000003500072674642500273460ustar 00000000000000error: Variant with `catch_all` must be a tuple with exactly 1 field matching the repr type --> tests/try_build/nightly/compile_fail/catch_all_multiple_fields.rs:7:16 | 7 | #[num_enum(catch_all)] | ^^^^^^^^^ num_enum-0.5.7/tests/try_build/nightly/compile_fail/catch_all_non_tuple.rs000064400000000000000000000003050072674642500253110ustar 00000000000000#![feature(arbitrary_enum_discriminant)] #[derive(Debug, Eq, PartialEq, num_enum::FromPrimitive)] #[repr(u8)] enum Enum { Zero = 0, #[num_enum(catch_all)] NonZero = 1, } fn main() {} num_enum-0.5.7/tests/try_build/nightly/compile_fail/catch_all_non_tuple.stderr000064400000000000000000000003420072674642500261710ustar 00000000000000error: Variant with `catch_all` must be a tuple with exactly 1 field matching the repr type --> tests/try_build/nightly/compile_fail/catch_all_non_tuple.rs:7:16 | 7 | #[num_enum(catch_all)] | ^^^^^^^^^ num_enum-0.5.7/tests/try_build/nightly/compile_fail/catch_all_type_mismatch.rs000064400000000000000000000003060072674642500261550ustar 00000000000000#![feature(arbitrary_enum_discriminant)] #[derive(Debug, Eq, PartialEq, num_enum::FromPrimitive)] #[repr(u8)] enum Enum { Zero = 0, #[num_enum(catch_all)] NonZero(i32), } fn main() {} num_enum-0.5.7/tests/try_build/nightly/compile_fail/catch_all_type_mismatch.stderr000064400000000000000000000003460072674642500270400ustar 00000000000000error: Variant with `catch_all` must be a tuple with exactly 1 field matching the repr type --> tests/try_build/nightly/compile_fail/catch_all_type_mismatch.rs:7:16 | 7 | #[num_enum(catch_all)] | ^^^^^^^^^ num_enum-0.5.7/tests/try_build/nightly/compile_fail/conflicting_default.rs000064400000000000000000000002140072674642500253160ustar 00000000000000#![feature(derive_default_enum)] #[derive(Default, num_enum::Default)] #[repr(u8)] enum Number { #[default] Zero, } fn main() { } num_enum-0.5.7/tests/try_build/nightly/compile_fail/conflicting_default.stderr000064400000000000000000000007420072674642500262030ustar 00000000000000error[E0119]: conflicting implementations of trait `std::default::Default` for type `Number` --> tests/try_build/nightly/compile_fail/conflicting_default.rs:3:19 | 3 | #[derive(Default, num_enum::Default)] | ------- ^^^^^^^^^^^^^^^^^ conflicting implementation for `Number` | | | first implementation here | = note: this error originates in the derive macro `num_enum::Default` (in Nightly builds, run with -Z macro-backtrace for more info) num_enum-0.5.7/tests/try_build/nightly/compile_fail/default_and_catch_all.rs000064400000000000000000000003240072674642500255550ustar 00000000000000#![feature(arbitrary_enum_discriminant)] #[derive(Debug, Eq, PartialEq, num_enum::FromPrimitive)] #[repr(u8)] enum Enum { #[default] Zero = 0, #[num_enum(catch_all)] NonZero(u8), } fn main() {} num_enum-0.5.7/tests/try_build/nightly/compile_fail/default_and_catch_all.stderr000064400000000000000000000003120072674642500264310ustar 00000000000000error: Attribute `catch_all` is mutually exclusive with `default` --> tests/try_build/nightly/compile_fail/default_and_catch_all.rs:8:16 | 8 | #[num_enum(catch_all)] | ^^^^^^^^^ num_enum-0.5.7/tests/try_build/nightly/compile_fail/default_and_catch_all_alt.rs000064400000000000000000000003360072674642500264200ustar 00000000000000#![feature(arbitrary_enum_discriminant)] #[derive(Debug, Eq, PartialEq, num_enum::FromPrimitive)] #[repr(u8)] enum Enum { #[num_enum(default)] Zero = 0, #[num_enum(catch_all)] NonZero(u8), } fn main() {} num_enum-0.5.7/tests/try_build/nightly/compile_fail/default_and_catch_all_alt.stderr000064400000000000000000000003160072674642500272750ustar 00000000000000error: Attribute `catch_all` is mutually exclusive with `default` --> tests/try_build/nightly/compile_fail/default_and_catch_all_alt.rs:8:16 | 8 | #[num_enum(catch_all)] | ^^^^^^^^^ num_enum-0.5.7/tests/try_build/nightly/compile_fail/default_and_catch_all_same_variant.rs000064400000000000000000000003240072674642500303060ustar 00000000000000#![feature(arbitrary_enum_discriminant)] #[derive(Debug, Eq, PartialEq, num_enum::FromPrimitive)] #[repr(u8)] enum Enum { Zero = 0, #[num_enum(catch_all)] #[default] NonZero(u8), } fn main() {} num_enum-0.5.7/tests/try_build/nightly/compile_fail/default_and_catch_all_same_variant.stderr000064400000000000000000000003000072674642500311570ustar 00000000000000error: Attribute `default` is mutually exclusive with `catch_all` --> tests/try_build/nightly/compile_fail/default_and_catch_all_same_variant.rs:8:5 | 8 | #[default] | ^^^^^^^^^^ num_enum-0.5.7/tests/try_build/nightly/compile_fail/default_and_catch_all_same_variant_alt.rs000064400000000000000000000003360072674642500311510ustar 00000000000000#![feature(arbitrary_enum_discriminant)] #[derive(Debug, Eq, PartialEq, num_enum::FromPrimitive)] #[repr(u8)] enum Enum { Zero = 0, #[num_enum(catch_all)] #[num_enum(default)] NonZero(u8), } fn main() {} num_enum-0.5.7/tests/try_build/nightly/compile_fail/default_and_catch_all_same_variant_alt.stderr000064400000000000000000000003270072674642500320300ustar 00000000000000error: Attribute `default` is mutually exclusive with `catch_all` --> tests/try_build/nightly/compile_fail/default_and_catch_all_same_variant_alt.rs:8:16 | 8 | #[num_enum(default)] | ^^^^^^^ num_enum-0.5.7/tests/try_build/nightly/compile_fail/multiple_catch_all.rs000064400000000000000000000003400072674642500251400ustar 00000000000000#![feature(arbitrary_enum_discriminant)] #[derive(Debug, Eq, PartialEq, num_enum::FromPrimitive)] #[repr(u8)] enum Enum { #[num_enum(catch_all)] Zero(u8), #[num_enum(catch_all)] NonZero(u8), } fn main() {} num_enum-0.5.7/tests/try_build/nightly/compile_fail/multiple_catch_all.stderr000064400000000000000000000003030072674642500260160ustar 00000000000000error: Multiple variants marked with `#[num_enum(catch_all)]` --> tests/try_build/nightly/compile_fail/multiple_catch_all.rs:8:16 | 8 | #[num_enum(catch_all)] | ^^^^^^^^^ num_enum-0.5.7/tests/try_build/nightly/compile_fail/multiple_catch_all_same_variant.rs000064400000000000000000000003400072674642500276710ustar 00000000000000#![feature(arbitrary_enum_discriminant)] #[derive(Debug, Eq, PartialEq, num_enum::FromPrimitive)] #[repr(u8)] enum Enum { Zero = 0, #[num_enum(catch_all)] #[num_enum(catch_all)] NonZero(u8), } fn main() {} num_enum-0.5.7/tests/try_build/nightly/compile_fail/multiple_catch_all_same_variant.stderr000064400000000000000000000003200072674642500305460ustar 00000000000000error: Multiple variants marked with `#[num_enum(catch_all)]` --> tests/try_build/nightly/compile_fail/multiple_catch_all_same_variant.rs:8:16 | 8 | #[num_enum(catch_all)] | ^^^^^^^^^ num_enum-0.5.7/tests/try_build/pass/default_and_alternatives.rs000064400000000000000000000026160072674642500232170ustar 00000000000000#[derive(num_enum::TryFromPrimitive)] #[repr(u8)] enum Default { #[num_enum(default)] Foo = 0, Bar = 1, } #[derive(num_enum::TryFromPrimitive)] #[repr(u8)] enum Alternatives { #[num_enum(alternatives = [])] Foo = 0, #[num_enum(alternatives = [3])] Bar = 1, #[num_enum(alternatives = [4, 5])] Baz = 2, #[num_enum(alternatives = [7])] #[num_enum(alternatives = [8])] Blee = 6, } #[derive(num_enum::TryFromPrimitive)] #[repr(u8)] enum Both { #[num_enum(default)] Foo = 0, #[num_enum(alternatives = [3])] Bar = 1, } mod mixed { #[derive(num_enum::TryFromPrimitive)] #[repr(u8)] enum AlternativesFollowedByDefaultInSingleAttribute { #[num_enum(alternatives = [1, 2], default)] Foo = 0, } #[derive(num_enum::TryFromPrimitive)] #[repr(u8)] enum DefaultFollowedByAlternativesInSingleAttribute { #[num_enum(default, alternatives = [1, 2])] Foo = 0, } #[derive(num_enum::TryFromPrimitive)] #[repr(u8)] enum AlternativesFollowedByDefaultInMultipleAttributes { #[num_enum(alternatives = [1, 2])] #[num_enum(default)] Foo = 0, } #[derive(num_enum::TryFromPrimitive)] #[repr(u8)] enum DefaultFollowedByAlternativesInMultipleAttributes { #[num_enum(default)] #[num_enum(alternatives = [1, 2])] Foo = 0, } } fn main() { } num_enum-0.5.7/tests/try_build/pass/exhaustive_enum.rs000064400000000000000000000074020072674642500213770ustar 00000000000000#[derive(num_enum::FromPrimitive)] #[repr(u8)] enum ExhaustiveFrom { #[num_enum(default)] #[num_enum(alternatives = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15])] A = 0, #[num_enum(alternatives = [17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31])] B = 16, #[num_enum(alternatives = [33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47])] C = 32, #[num_enum(alternatives = [49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63])] D = 48, #[num_enum(alternatives = [65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79])] E = 64, #[num_enum(alternatives = [81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95])] F = 80, #[num_enum(alternatives = [97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111])] G = 96, #[num_enum(alternatives = [113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127])] H = 112, #[num_enum(alternatives = [129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143])] I = 128, #[num_enum(alternatives = [145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159])] J = 144, #[num_enum(alternatives = [161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175])] K = 160, #[num_enum(alternatives = [177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191])] L = 176, #[num_enum(alternatives = [193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207])] M = 192, #[num_enum(alternatives = [209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223])] N = 208, #[num_enum(alternatives = [225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239])] O = 224, #[num_enum(alternatives = [241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255])] P = 240, } #[derive(num_enum::TryFromPrimitive)] #[repr(u8)] enum ExhaustiveTryFrom { #[num_enum(alternatives = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15])] A = 0, #[num_enum(alternatives = [17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31])] B = 16, #[num_enum(alternatives = [33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47])] C = 32, #[num_enum(alternatives = [49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63])] D = 48, #[num_enum(alternatives = [65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79])] E = 64, #[num_enum(alternatives = [81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95])] F = 80, #[num_enum(alternatives = [97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111])] G = 96, #[num_enum(alternatives = [113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127])] H = 112, #[num_enum(alternatives = [129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143])] I = 128, #[num_enum(alternatives = [145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159])] J = 144, #[num_enum(alternatives = [161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175])] K = 160, #[num_enum(alternatives = [177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191])] L = 176, #[num_enum(alternatives = [193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207])] M = 192, #[num_enum(alternatives = [209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223])] N = 208, #[num_enum(alternatives = [225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239])] O = 224, #[num_enum(alternatives = [241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255])] P = 240, } fn main() { } num_enum-0.5.7/tests/try_build.rs000064400000000000000000000065270072674642500152270ustar 00000000000000use std::error::Error; use std::path::{Path, PathBuf}; use walkdir::WalkDir; #[rustversion::all(nightly)] const NIGHTLY: bool = true; #[rustversion::not(nightly)] const NIGHTLY: bool = false; #[test] fn trybuild() { let directory = PathBuf::from("tests/try_build"); let mut _renamer = None; // Sometimes error messages change on beta/nightly - allow alternate errors on those. _renamer = Some(Renamer::rename(directory.join("compile_fail")).unwrap()); let fail = trybuild::TestCases::new(); fail.compile_fail(directory.join("compile_fail/*.rs")); if NIGHTLY { fail.compile_fail(directory.join("nightly/compile_fail/*.rs")); } let pass = trybuild::TestCases::new(); pass.pass(directory.join("pass/*.rs")); } struct Renamer(Vec); impl Renamer { const STDERR_EXTENSION: &'static str = "stderr"; #[rustversion::all(beta)] const VERSION_SPECIFIC_EXTENSION: &'static str = "stderr_beta"; #[rustversion::all(nightly)] const VERSION_SPECIFIC_EXTENSION: &'static str = "stderr_nightly"; #[rustversion::all(not(beta), not(nightly))] const VERSION_SPECIFIC_EXTENSION: &'static str = "stderr_doesnotexist"; const NON_VERSION_SPECIFIC_BACKUP_EXTENSION: &'static str = "stderr_non_version_specific_backup"; fn rename(dir: PathBuf) -> anyhow::Result { let nightly_paths = WalkDir::new(dir) .max_depth(1) .into_iter() .filter_map(|dir_entry| { let dir_entry = match dir_entry { Ok(dir_entry) => dir_entry, Err(err) => return Some(Err(err)), }; let path = dir_entry.path(); if let Some(file_name) = path.file_name() { if Path::new(file_name).extension() == Some(Renamer::VERSION_SPECIFIC_EXTENSION.as_ref()) { return Some(Ok(path.to_path_buf())); } } None }) .collect::, _>>()?; // Create early so that if we end up returning an error this gets dropped and undoes any // already-done renames. let renamer = Renamer(nightly_paths); for nightly_path in &renamer.0 { std::fs::rename( nightly_path.with_extension(Renamer::STDERR_EXTENSION), nightly_path.with_extension(Renamer::NON_VERSION_SPECIFIC_BACKUP_EXTENSION), )?; std::fs::rename( nightly_path.with_extension(Renamer::VERSION_SPECIFIC_EXTENSION), nightly_path.with_extension(Renamer::STDERR_EXTENSION), )?; } Ok(renamer) } } impl Drop for Renamer { fn drop(&mut self) { for path in &self.0 { ignore_error(std::fs::rename( path.with_extension(Renamer::STDERR_EXTENSION), path.with_extension(Renamer::VERSION_SPECIFIC_EXTENSION), )); ignore_error(std::fs::rename( path.with_extension(Renamer::NON_VERSION_SPECIFIC_BACKUP_EXTENSION), path.with_extension(Renamer::STDERR_EXTENSION), )); } } } fn ignore_error(result: Result) { if let Err(err) = result { eprintln!("Ignoring error: {}", err); } } num_enum-0.5.7/tests/try_from_primitive.rs000064400000000000000000000212430072674642500171530ustar 00000000000000use ::std::convert::{TryFrom, TryInto}; use ::num_enum::TryFromPrimitive; // Guard against https://github.com/illicitonion/num_enum/issues/27 mod alloc {} mod core {} mod num_enum {} mod std {} #[test] fn simple() { #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] enum Enum { Zero, One, Two, } let zero: Result = 0u8.try_into(); assert_eq!(zero, Ok(Enum::Zero)); let three: Result = 3u8.try_into(); assert_eq!( three.unwrap_err().to_string(), "No discriminant in enum `Enum` matches the value `3`" ); } #[test] fn even() { #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] enum Enum { Zero = 0, Two = 2, Four = 4, } let zero: Result = 0u8.try_into(); assert_eq!(zero, Ok(Enum::Zero)); let one: Result = 1u8.try_into(); assert_eq!( one.unwrap_err().to_string(), "No discriminant in enum `Enum` matches the value `1`" ); let two: Result = 2u8.try_into(); assert_eq!(two, Ok(Enum::Two)); let three: Result = 3u8.try_into(); assert_eq!( three.unwrap_err().to_string(), "No discriminant in enum `Enum` matches the value `3`" ); let four: Result = 4u8.try_into(); assert_eq!(four, Ok(Enum::Four)); } #[test] fn skipped_value() { #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] enum Enum { Zero, One, Three = 3, Four, } let zero: Result = 0u8.try_into(); assert_eq!(zero, Ok(Enum::Zero)); let one: Result = 1u8.try_into(); assert_eq!(one, Ok(Enum::One)); let two: Result = 2u8.try_into(); assert_eq!( two.unwrap_err().to_string(), "No discriminant in enum `Enum` matches the value `2`" ); let three: Result = 3u8.try_into(); assert_eq!(three, Ok(Enum::Three)); let four: Result = 4u8.try_into(); assert_eq!(four, Ok(Enum::Four)); } #[test] fn wrong_order() { #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] enum Enum { Four = 4, Three = 3, Zero = 0, One, // Zero + 1 } let zero: Result = 0u8.try_into(); assert_eq!(zero, Ok(Enum::Zero)); let one: Result = 1u8.try_into(); assert_eq!(one, Ok(Enum::One)); let two: Result = 2u8.try_into(); assert_eq!( two.unwrap_err().to_string(), "No discriminant in enum `Enum` matches the value `2`" ); let three: Result = 3u8.try_into(); assert_eq!(three, Ok(Enum::Three)); let four: Result = 4u8.try_into(); assert_eq!(four, Ok(Enum::Four)); } #[cfg(feature = "complex-expression")] mod complex { const ONE: u8 = 1; #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] enum Enum { Zero, One = ONE, Two, Four = 4u8, Five, Six = ONE + ONE + 2u8 + 2, Seven = (7, 2).0, } #[test] fn different_values() { let zero: Result = 0u8.try_into(); assert_eq!(zero, Ok(Enum::Zero)); let one: Result = 1u8.try_into(); assert_eq!(one, Ok(Enum::One)); let two: Result = 2u8.try_into(); assert_eq!(two, Ok(Enum::Two)); let three: Result = 3u8.try_into(); assert_eq!( three.unwrap_err().to_string(), "No discriminant in enum `Enum` matches the value `3`", ); let four: Result = 4u8.try_into(); assert_eq!(four, Ok(Enum::Four)); let five: Result = 5u8.try_into(); assert_eq!(five, Ok(Enum::Five)); let six: Result = 6u8.try_into(); assert_eq!(six, Ok(Enum::Six)); let seven: Result = 7u8.try_into(); assert_eq!(seven, Ok(Enum::Seven)); } } #[test] fn missing_trailing_comma() { #[rustfmt::skip] #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] enum Enum { Zero, One } let zero: Result = 0u8.try_into(); assert_eq!(zero, Ok(Enum::Zero)); let one: Result = 1u8.try_into(); assert_eq!(one, Ok(Enum::One)); let two: Result = 2u8.try_into(); assert_eq!( two.unwrap_err().to_string(), "No discriminant in enum `Enum` matches the value `2`" ); } #[test] fn ignores_extra_attributes() { #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[allow(unused)] #[repr(u8)] enum Enum { Zero, #[allow(unused)] One, } let zero: Result = 0u8.try_into(); assert_eq!(zero, Ok(Enum::Zero)); let one: Result = 1u8.try_into(); assert_eq!(one, Ok(Enum::One)); let two: Result = 2u8.try_into(); assert_eq!( two.unwrap_err().to_string(), "No discriminant in enum `Enum` matches the value `2`" ); } #[test] fn visibility_is_fine() { #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] pub(crate) enum Enum { Zero, One, } let zero: Result = 0u8.try_into(); assert_eq!(zero, Ok(Enum::Zero)); let one: Result = 1u8.try_into(); assert_eq!(one, Ok(Enum::One)); let two: Result = 2u8.try_into(); assert_eq!( two.unwrap_err().to_string(), "No discriminant in enum `Enum` matches the value `2`" ); } #[test] fn error_variant_is_allowed() { #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] pub enum Enum { Ok, Error, } let ok: Result = 0u8.try_into(); assert_eq!(ok, Ok(Enum::Ok)); let err: Result = 1u8.try_into(); assert_eq!(err, Ok(Enum::Error)); let unknown: Result = 2u8.try_into(); assert_eq!( unknown.unwrap_err().to_string(), "No discriminant in enum `Enum` matches the value `2`" ); } #[test] fn alternative_values() { #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] enum Enum { Zero = 0, #[num_enum(alternatives = [2, 3])] OneTwoOrThree = 1, } let zero: Result = 0u8.try_into(); assert_eq!(zero, Ok(Enum::Zero)); let one: Result = 1u8.try_into(); assert_eq!(one, Ok(Enum::OneTwoOrThree)); let two: Result = 2u8.try_into(); assert_eq!(two, Ok(Enum::OneTwoOrThree)); let three: Result = 3u8.try_into(); assert_eq!(three, Ok(Enum::OneTwoOrThree)); let four: Result = 4u8.try_into(); assert_eq!( four.unwrap_err().to_string(), "No discriminant in enum `Enum` matches the value `4`" ); } #[test] fn default_value() { #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] enum Enum { Zero = 0, One = 1, #[num_enum(default)] Other = 2, } let zero: Result = 0u8.try_into(); assert_eq!(zero, Ok(Enum::Zero)); let one: Result = 1u8.try_into(); assert_eq!(one, Ok(Enum::One)); let two: Result = 2u8.try_into(); assert_eq!(two, Ok(Enum::Other)); let max_value: Result = u8::max_value().try_into(); assert_eq!(max_value, Ok(Enum::Other)); } #[test] fn alternative_values_and_default_value() { #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] enum Enum { #[num_enum(default)] Zero = 0, One = 1, #[num_enum(alternatives = [3])] TwoOrThree = 2, } let zero: Result = 0u8.try_into(); assert_eq!(zero, Ok(Enum::Zero)); let one: Result = 1u8.try_into(); assert_eq!(one, Ok(Enum::One)); let two: Result = 2u8.try_into(); assert_eq!(two, Ok(Enum::TwoOrThree)); let three: Result = 3u8.try_into(); assert_eq!(three, Ok(Enum::TwoOrThree)); let four: Result = 4u8.try_into(); assert_eq!(four, Ok(Enum::Zero)); } #[test] fn try_from_primitive_number() { #[derive(Debug, Eq, PartialEq, TryFromPrimitive)] #[repr(u8)] enum Enum { #[num_enum(default)] Whatever = 0, } // #[derive(FromPrimitive)] generates implementations for the following traits: // // - `TryFromPrimitive` // - `TryFrom` let try_from_primitive = Enum::try_from_primitive(0_u8); assert_eq!(try_from_primitive, Ok(Enum::Whatever)); let try_from = Enum::try_from(0_u8); assert_eq!(try_from, Ok(Enum::Whatever)); } // #[derive(FromPrimitive)] generates implementations for the following traits: // // - `FromPrimitive` // - `From` // - `TryFromPrimitive` // - `TryFrom` num_enum-0.5.7/tests/unsafe_from_primitive.rs000064400000000000000000000007260072674642500176210ustar 00000000000000use ::num_enum::UnsafeFromPrimitive; // Guard against https://github.com/illicitonion/num_enum/issues/27 mod alloc {} mod core {} mod num_enum {} mod std {} #[test] fn has_unsafe_from_primitive_number() { #[derive(Debug, Eq, PartialEq, UnsafeFromPrimitive)] #[repr(u8)] enum Enum { Zero, One, } unsafe { assert_eq!(Enum::from_unchecked(0_u8), Enum::Zero); assert_eq!(Enum::from_unchecked(1_u8), Enum::One); } }