diff options
| author | mo khan <mo@mokhan.ca> | 2025-07-02 18:36:06 -0600 |
|---|---|---|
| committer | mo khan <mo@mokhan.ca> | 2025-07-02 18:36:06 -0600 |
| commit | 8cdfa445d6629ffef4cb84967ff7017654045bc2 (patch) | |
| tree | 22f0b0907c024c78d26a731e2e1f5219407d8102 /vendor/num-conv | |
| parent | 4351c74c7c5f97156bc94d3a8549b9940ac80e3f (diff) | |
chore: add vendor directory
Diffstat (limited to 'vendor/num-conv')
| -rw-r--r-- | vendor/num-conv/.cargo-checksum.json | 1 | ||||
| -rw-r--r-- | vendor/num-conv/Cargo.toml | 55 | ||||
| -rw-r--r-- | vendor/num-conv/LICENSE-Apache | 202 | ||||
| -rw-r--r-- | vendor/num-conv/LICENSE-MIT | 19 | ||||
| -rw-r--r-- | vendor/num-conv/src/lib.rs | 329 |
5 files changed, 606 insertions, 0 deletions
diff --git a/vendor/num-conv/.cargo-checksum.json b/vendor/num-conv/.cargo-checksum.json new file mode 100644 index 00000000..3886e697 --- /dev/null +++ b/vendor/num-conv/.cargo-checksum.json @@ -0,0 +1 @@ +{"files":{"Cargo.toml":"c1d8999190f493d43b84b07eaffd2a9144e16be197bb3ef13eb69305e2f23047","LICENSE-Apache":"c0fd5f9df8d17e13587f8fe403d2326b835e60d532817d0b42ae4aea44209251","LICENSE-MIT":"af85fff507d80e6c7ff242acfc4b0a7f5de9a72286bb3c883c782772ca4b4402","src/lib.rs":"ab6c4b28902164204179f5c31473753fbe5220a4b23082e227478e19c2aa47ca"},"package":"51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"}
\ No newline at end of file diff --git a/vendor/num-conv/Cargo.toml b/vendor/num-conv/Cargo.toml new file mode 100644 index 00000000..0b8a9a6c --- /dev/null +++ b/vendor/num-conv/Cargo.toml @@ -0,0 +1,55 @@ +# 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 = "2021" +rust-version = "1.57.0" +name = "num-conv" +version = "0.1.0" +authors = ["Jacob Pratt <jacob@jhpratt.dev>"] +include = [ + "src/**/*", + "LICENSE-*", +] +description = """ +`num_conv` is a crate to convert between integer types without using `as` casts. This provides +better certainty when refactoring, makes the exact behavior of code more explicit, and allows using +turbofish syntax. +""" +readme = "README.md" +keywords = [ + "cast", + "extend", + "truncate", + "convert", + "integer", +] +categories = [ + "no-std", + "no-std::no-alloc", + "rust-patterns", +] +license = "MIT OR Apache-2.0" +repository = "https://github.com/jhpratt/num-conv" + +[package.metadata.docs.rs] +rustdoc-args = ["--generate-link-to-definition"] + +[features] + +[lints.clippy] +alloc-instead-of-core = "deny" +std-instead-of-core = "deny" + +[lints.rust] +missing-docs = "warn" +unreachable-pub = "warn" +unused = "warn" diff --git a/vendor/num-conv/LICENSE-Apache b/vendor/num-conv/LICENSE-Apache new file mode 100644 index 00000000..d8bca8b9 --- /dev/null +++ b/vendor/num-conv/LICENSE-Apache @@ -0,0 +1,202 @@ + + 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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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright 2023 Jacob Pratt + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/num-conv/LICENSE-MIT b/vendor/num-conv/LICENSE-MIT new file mode 100644 index 00000000..7c7f78a5 --- /dev/null +++ b/vendor/num-conv/LICENSE-MIT @@ -0,0 +1,19 @@ +Copyright (c) 2023 Jacob Pratt + +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. diff --git a/vendor/num-conv/src/lib.rs b/vendor/num-conv/src/lib.rs new file mode 100644 index 00000000..cbf3ff21 --- /dev/null +++ b/vendor/num-conv/src/lib.rs @@ -0,0 +1,329 @@ +//! `num_conv` is a crate to convert between integer types without using `as` casts. This provides +//! better certainty when refactoring, makes the exact behavior of code more explicit, and allows +//! using turbofish syntax. + +#![no_std] + +/// Anonymously import all extension traits. +/// +/// This allows you to use the methods without worrying about polluting the namespace or importing +/// them individually. +/// +/// ```rust +/// use num_conv::prelude::*; +/// ``` +pub mod prelude { + pub use crate::{CastSigned as _, CastUnsigned as _, Extend as _, Truncate as _}; +} + +mod sealed { + pub trait Integer {} + + macro_rules! impl_integer { + ($($t:ty)*) => {$( + impl Integer for $t {} + )*}; + } + + impl_integer! { + u8 u16 u32 u64 u128 usize + i8 i16 i32 i64 i128 isize + } + + pub trait ExtendTargetSealed<T> { + fn extend(self) -> T; + } + + pub trait TruncateTargetSealed<T> { + fn truncate(self) -> T; + } +} + +/// Cast to a signed integer of the same size. +/// +/// This trait is implemented for all integers. Unsigned to signed casts are equivalent to +/// `0.wrapping_add_signed(value)`, while signed to signed casts are an identity conversion. +/// +/// ```rust +/// # use num_conv::CastSigned; +/// assert_eq!(u8::MAX.cast_signed(), -1_i8); +/// assert_eq!(u16::MAX.cast_signed(), -1_i16); +/// assert_eq!(u32::MAX.cast_signed(), -1_i32); +/// assert_eq!(u64::MAX.cast_signed(), -1_i64); +/// assert_eq!(u128::MAX.cast_signed(), -1_i128); +/// assert_eq!(usize::MAX.cast_signed(), -1_isize); +/// ``` +/// +/// ```rust +/// # use num_conv::CastSigned; +/// assert_eq!(0_i8.cast_signed(), 0_i8); +/// assert_eq!(0_i16.cast_signed(), 0_i16); +/// assert_eq!(0_i32.cast_signed(), 0_i32); +/// assert_eq!(0_i64.cast_signed(), 0_i64); +/// assert_eq!(0_i128.cast_signed(), 0_i128); +/// assert_eq!(0_isize.cast_signed(), 0_isize); +/// ``` +pub trait CastSigned: sealed::Integer { + /// The signed integer type with the same size as `Self`. + type Signed; + + /// Cast an integer to the signed integer of the same size. + fn cast_signed(self) -> Self::Signed; +} + +/// Cast to an unsigned integer of the same size. +/// +/// This trait is implemented for all integers. Signed to unsigned casts are equivalent to +/// `0.wrapping_add_unsigned(value)`, while unsigned to unsigned casts are an identity conversion. +/// +/// ```rust +/// # use num_conv::CastUnsigned; +/// assert_eq!((-1_i8).cast_unsigned(), u8::MAX); +/// assert_eq!((-1_i16).cast_unsigned(), u16::MAX); +/// assert_eq!((-1_i32).cast_unsigned(), u32::MAX); +/// assert_eq!((-1_i64).cast_unsigned(), u64::MAX); +/// assert_eq!((-1_i128).cast_unsigned(), u128::MAX); +/// assert_eq!((-1_isize).cast_unsigned(), usize::MAX); +/// ``` +/// +/// ```rust +/// # use num_conv::CastUnsigned; +/// assert_eq!(0_u8.cast_unsigned(), 0_u8); +/// assert_eq!(0_u16.cast_unsigned(), 0_u16); +/// assert_eq!(0_u32.cast_unsigned(), 0_u32); +/// assert_eq!(0_u64.cast_unsigned(), 0_u64); +/// assert_eq!(0_u128.cast_unsigned(), 0_u128); +/// assert_eq!(0_usize.cast_unsigned(), 0_usize); +/// ``` +pub trait CastUnsigned: sealed::Integer { + /// The unsigned integer type with the same size as `Self`. + type Unsigned; + + /// Cast an integer to the unsigned integer of the same size. + fn cast_unsigned(self) -> Self::Unsigned; +} + +/// A type that can be used with turbofish syntax in [`Extend::extend`]. +/// +/// It is unlikely that you will want to use this trait directly. You are probably looking for the +/// [`Extend`] trait. +pub trait ExtendTarget<T>: sealed::ExtendTargetSealed<T> {} + +/// A type that can be used with turbofish syntax in [`Truncate::truncate`]. +/// +/// It is unlikely that you will want to use this trait directly. You are probably looking for the +/// [`Truncate`] trait. +pub trait TruncateTarget<T>: sealed::TruncateTargetSealed<T> {} + +/// Extend to an integer of the same size or larger, preserving its value. +/// +/// ```rust +/// # use num_conv::Extend; +/// assert_eq!(0_u8.extend::<u16>(), 0_u16); +/// assert_eq!(0_u16.extend::<u32>(), 0_u32); +/// assert_eq!(0_u32.extend::<u64>(), 0_u64); +/// assert_eq!(0_u64.extend::<u128>(), 0_u128); +/// ``` +/// +/// ```rust +/// # use num_conv::Extend; +/// assert_eq!((-1_i8).extend::<i16>(), -1_i16); +/// assert_eq!((-1_i16).extend::<i32>(), -1_i32); +/// assert_eq!((-1_i32).extend::<i64>(), -1_i64); +/// assert_eq!((-1_i64).extend::<i128>(), -1_i128); +/// ``` +pub trait Extend: sealed::Integer { + /// Extend an integer to an integer of the same size or larger, preserving its value. + fn extend<T>(self) -> T + where + Self: ExtendTarget<T>; +} + +impl<T: sealed::Integer> Extend for T { + fn extend<U>(self) -> U + where + T: ExtendTarget<U>, + { + sealed::ExtendTargetSealed::extend(self) + } +} + +/// Truncate to an integer of the same size or smaller, preserving the least significant bits. +/// +/// ```rust +/// # use num_conv::Truncate; +/// assert_eq!(u16::MAX.truncate::<u8>(), u8::MAX); +/// assert_eq!(u32::MAX.truncate::<u16>(), u16::MAX); +/// assert_eq!(u64::MAX.truncate::<u32>(), u32::MAX); +/// assert_eq!(u128::MAX.truncate::<u64>(), u64::MAX); +/// ``` +/// +/// ```rust +/// # use num_conv::Truncate; +/// assert_eq!((-1_i16).truncate::<i8>(), -1_i8); +/// assert_eq!((-1_i32).truncate::<i16>(), -1_i16); +/// assert_eq!((-1_i64).truncate::<i32>(), -1_i32); +/// assert_eq!((-1_i128).truncate::<i64>(), -1_i64); +/// ``` +pub trait Truncate: sealed::Integer { + /// Truncate an integer to an integer of the same size or smaller, preserving the least + /// significant bits. + fn truncate<T>(self) -> T + where + Self: TruncateTarget<T>; +} + +impl<T: sealed::Integer> Truncate for T { + fn truncate<U>(self) -> U + where + T: TruncateTarget<U>, + { + sealed::TruncateTargetSealed::truncate(self) + } +} + +macro_rules! impl_cast_signed { + ($($($from:ty),+ => $to:ty;)*) => {$($( + const _: () = assert!( + core::mem::size_of::<$from>() == core::mem::size_of::<$to>(), + concat!( + "cannot cast ", + stringify!($from), + " to ", + stringify!($to), + " because they are different sizes" + ) + ); + + impl CastSigned for $from { + type Signed = $to; + fn cast_signed(self) -> Self::Signed { + self as _ + } + } + )+)*}; +} + +macro_rules! impl_cast_unsigned { + ($($($from:ty),+ => $to:ty;)*) => {$($( + const _: () = assert!( + core::mem::size_of::<$from>() == core::mem::size_of::<$to>(), + concat!( + "cannot cast ", + stringify!($from), + " to ", + stringify!($to), + " because they are different sizes" + ) + ); + + impl CastUnsigned for $from { + type Unsigned = $to; + fn cast_unsigned(self) -> Self::Unsigned { + self as _ + } + } + )+)*}; +} + +macro_rules! impl_extend { + ($($from:ty => $($to:ty),+;)*) => {$($( + const _: () = assert!( + core::mem::size_of::<$from>() <= core::mem::size_of::<$to>(), + concat!( + "cannot extend ", + stringify!($from), + " to ", + stringify!($to), + " because ", + stringify!($from), + " is larger than ", + stringify!($to) + ) + ); + + impl sealed::ExtendTargetSealed<$to> for $from { + fn extend(self) -> $to { + self as _ + } + } + + impl ExtendTarget<$to> for $from {} + )+)*}; +} + +macro_rules! impl_truncate { + ($($($from:ty),+ => $to:ty;)*) => {$($( + const _: () = assert!( + core::mem::size_of::<$from>() >= core::mem::size_of::<$to>(), + concat!( + "cannot truncate ", + stringify!($from), + " to ", + stringify!($to), + " because ", + stringify!($from), + " is smaller than ", + stringify!($to) + ) + ); + + impl sealed::TruncateTargetSealed<$to> for $from { + fn truncate(self) -> $to { + self as _ + } + } + + impl TruncateTarget<$to> for $from {} + )+)*}; +} + +impl_cast_signed! { + u8, i8 => i8; + u16, i16 => i16; + u32, i32 => i32; + u64, i64 => i64; + u128, i128 => i128; + usize, isize => isize; +} + +impl_cast_unsigned! { + u8, i8 => u8; + u16, i16 => u16; + u32, i32 => u32; + u64, i64 => u64; + u128, i128 => u128; + usize, isize => usize; +} + +impl_extend! { + u8 => u8, u16, u32, u64, u128, usize; + u16 => u16, u32, u64, u128, usize; + u32 => u32, u64, u128; + u64 => u64, u128; + u128 => u128; + usize => usize; + + i8 => i8, i16, i32, i64, i128, isize; + i16 => i16, i32, i64, i128, isize; + i32 => i32, i64, i128; + i64 => i64, i128; + i128 => i128; + isize => isize; +} + +impl_truncate! { + u8, u16, u32, u64, u128, usize => u8; + u16, u32, u64, u128, usize => u16; + u32, u64, u128 => u32; + u64, u128 => u64; + u128 => u128; + usize => usize; + + i8, i16, i32, i64, i128, isize => i8; + i16, i32, i64, i128, isize => i16; + i32, i64, i128 => i32; + i64, i128 => i64; + i128 => i128; + isize => isize; +} |
