bytestring-1.4.0/.cargo_vcs_info.json0000644000000001500000000000100132240ustar { "git": { "sha1": "0e36c5f5c4a63b8a83c89f2ac0c4004fd9f99d85" }, "path_in_vcs": "bytestring" }bytestring-1.4.0/CHANGES.md000064400000000000000000000025261046102023000134170ustar 00000000000000# Changes ## Unreleased ## 1.4.0 - Add `ByteString::split_at()` method. - Minimum supported Rust version (MSRV) is now 1.71. ## 1.3.1 - No significant changes since `1.3.0`. ## 1.3.0 - Implement `AsRef` for `ByteString`. ## 1.2.1 - Fix `#[no_std]` compatibility. [#471] [#471]: https://github.com/actix/actix-net/pull/471 ## 1.2.0 - Add `ByteString::slice_ref` which can safely slice a `ByteString` into a new one with zero copy. [#470] - Minimum supported Rust version (MSRV) is now 1.57. [#470]: https://github.com/actix/actix-net/pull/470 ## 1.1.0 - Implement `From>` for `ByteString`. [#458] - Implement `Into` for `ByteString`. [#458] - Minimum supported Rust version (MSRV) is now 1.49. [#458]: https://github.com/actix/actix-net/pull/458 ## 1.0.0 - Update `bytes` dependency to `1`. - Add array and slice of `u8` impls of `TryFrom` up to 32 in length. - Rename `get_ref` to `as_bytes` and rename `into_inner` to `into_bytes`. - `ByteString::new` is now a `const fn`. - Crate is now `#[no_std]` compatible. ## 0.1.5 - Serde support ## 0.1.4 - Fix `AsRef` impl ## 0.1.3 - Add `PartialEq>`, `AsRef<[u8]>` impls ## 0.1.2 - Fix `new()` method - Make `ByteString::from_static()` and `ByteString::from_bytes_unchecked()` methods const. ## 0.1.1 - Fix hash impl ## 0.1.0 - Initial release bytestring-1.4.0/Cargo.toml0000644000000027530000000000100112350ustar # 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 = "1.71.1" name = "bytestring" version = "1.4.0" authors = [ "Nikolay Kim ", "Rob Ede ", ] build = false autobins = false autoexamples = false autotests = false autobenches = false description = "A UTF-8 encoded read-only string using `Bytes` as storage" homepage = "https://actix.rs" readme = "README.md" keywords = [ "string", "bytes", "utf8", "web", "bytestring", ] categories = [ "no-std", "web-programming", ] license = "MIT OR Apache-2.0" repository = "https://github.com/actix/actix-net" [package.metadata.cargo_check_external_types] allowed_external_types = [ "bytes::*", "serde::*", ] [lib] name = "bytestring" path = "src/lib.rs" [dependencies.bytes] version = "1.2" default-features = false [dependencies.serde] version = "1" optional = true [dev-dependencies.ahash] version = "0.8" default-features = false [dev-dependencies.serde_json] version = "1" [dev-dependencies.static_assertions] version = "1.1" bytestring-1.4.0/Cargo.toml.orig000064400000000000000000000014631046102023000147130ustar 00000000000000[package] name = "bytestring" version = "1.4.0" description = "A UTF-8 encoded read-only string using `Bytes` as storage" authors = [ "Nikolay Kim ", "Rob Ede ", ] keywords = ["string", "bytes", "utf8", "web", "bytestring"] categories = ["no-std", "web-programming"] homepage = "https://actix.rs" repository = "https://github.com/actix/actix-net" license = "MIT OR Apache-2.0" edition.workspace = true rust-version.workspace = true [package.metadata.cargo_check_external_types] allowed_external_types = [ "bytes::*", "serde::*", ] [dependencies] bytes = { version = "1.2", default-features = false } serde = { version = "1", optional = true } [dev-dependencies] ahash = { version = "0.8", default-features = false } serde_json = "1" static_assertions = "1.1" bytestring-1.4.0/LICENSE-APACHE000064400000000000000000000261201046102023000137450ustar 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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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. bytestring-1.4.0/README.md000064400000000000000000000015361046102023000133040ustar 00000000000000# `bytestring` > A UTF-8 encoded read-only string using `Bytes` as storage. [![crates.io](https://img.shields.io/crates/v/bytestring?label=latest)](https://crates.io/crates/bytestring) [![Documentation](https://docs.rs/bytestring/badge.svg?version=1.4.0)](https://docs.rs/bytestring/1.4.0) [![Version](https://img.shields.io/badge/rustc-1.52+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.html) ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/bytestring.svg)
[![Dependency Status](https://deps.rs/crate/bytestring/1.4.0/status.svg)](https://deps.rs/crate/bytestring/1.4.0) ![Download](https://img.shields.io/crates/d/bytestring.svg) [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x) bytestring-1.4.0/src/lib.rs000064400000000000000000000324571046102023000137360ustar 00000000000000//! A UTF-8 encoded read-only string using `Bytes` as storage. //! //! See docs for [`ByteString`]. #![no_std] #![deny(rust_2018_idioms, nonstandard_style)] #![warn(future_incompatible, missing_docs)] extern crate alloc; use alloc::{ boxed::Box, string::{String, ToString}, vec::Vec, }; use core::{borrow::Borrow, fmt, hash, ops, str}; use bytes::Bytes; /// An immutable UTF-8 encoded string using [`Bytes`] as the storage. #[derive(Clone, Default, Eq, PartialOrd, Ord)] pub struct ByteString(Bytes); impl ByteString { /// Creates a new empty `ByteString`. pub const fn new() -> Self { ByteString(Bytes::new()) } /// Get a reference to the underlying `Bytes` object. pub fn as_bytes(&self) -> &Bytes { &self.0 } /// Unwraps this `ByteString` into the underlying `Bytes` object. pub fn into_bytes(self) -> Bytes { self.0 } /// Creates a new `ByteString` from a `&'static str`. pub const fn from_static(src: &'static str) -> ByteString { Self(Bytes::from_static(src.as_bytes())) } /// Creates a new `ByteString` from a Bytes. /// /// # Safety /// This function is unsafe because it does not check the bytes passed to it are valid UTF-8. /// If this constraint is violated, it may cause memory unsafety issues with future users of /// the `ByteString`, as we assume that `ByteString`s are valid UTF-8. However, the most likely /// issue is that the data gets corrupted. pub const unsafe fn from_bytes_unchecked(src: Bytes) -> ByteString { Self(src) } /// Divides one bytestring into two at an index, returning both parts. /// /// # Panics /// /// Panics if `mid` is not on a UTF-8 code point boundary, or if it is past the end of the last /// code point of the bytestring. pub fn split_at(&self, mid: usize) -> (ByteString, ByteString) { let this: &str = self.as_ref(); let _valid_midpoint_check = this.split_at(mid); let mut bytes = self.0.clone(); let first = bytes.split_to(mid); let last = bytes; unsafe { ( ByteString::from_bytes_unchecked(first), ByteString::from_bytes_unchecked(last), ) } } /// Returns a new `ByteString` that is equivalent to the given `subset`. /// /// When processing a `ByteString` buffer with other tools, one often gets a `&str` which is in /// fact a slice of the original `ByteString`; i.e., a subset of it. This function turns that /// `&str` into another `ByteString`, as if one had sliced the `ByteString` with the offsets /// that correspond to `subset`. /// /// Corresponds to [`Bytes::slice_ref`]. /// /// This operation is `O(1)`. /// /// # Panics /// /// Panics if `subset` is not a sub-slice of this byte string. /// /// Note that strings which are only subsets from an equality perspective do not uphold this /// requirement; see examples. /// /// # Examples /// /// ``` /// # use bytestring::ByteString; /// let string = ByteString::from_static(" foo "); /// let subset = string.trim(); /// let substring = string.slice_ref(subset); /// assert_eq!(substring, "foo"); /// ``` /// /// ```should_panic /// # use bytestring::ByteString; /// // panics because the given slice is not derived from the original byte string, despite /// // being a logical subset of the string /// ByteString::from_static("foo bar").slice_ref("foo"); /// ``` pub fn slice_ref(&self, subset: &str) -> Self { Self(self.0.slice_ref(subset.as_bytes())) } } impl PartialEq for ByteString { fn eq(&self, other: &str) -> bool { &self[..] == other } } impl> PartialEq for ByteString { fn eq(&self, other: &T) -> bool { &self[..] == other.as_ref() } } impl AsRef for ByteString { fn as_ref(&self) -> &ByteString { self } } impl AsRef<[u8]> for ByteString { fn as_ref(&self) -> &[u8] { self.0.as_ref() } } impl AsRef for ByteString { fn as_ref(&self) -> &str { self } } impl hash::Hash for ByteString { fn hash(&self, state: &mut H) { (**self).hash(state); } } impl ops::Deref for ByteString { type Target = str; #[inline] fn deref(&self) -> &str { let bytes = self.0.as_ref(); // SAFETY: UTF-8 validity is guaranteed during construction. unsafe { str::from_utf8_unchecked(bytes) } } } impl Borrow for ByteString { fn borrow(&self) -> &str { self } } impl From for ByteString { #[inline] fn from(value: String) -> Self { Self(Bytes::from(value)) } } impl From<&str> for ByteString { #[inline] fn from(value: &str) -> Self { Self(Bytes::copy_from_slice(value.as_ref())) } } impl From> for ByteString { #[inline] fn from(value: Box) -> Self { Self(Bytes::from(value.into_boxed_bytes())) } } impl From for String { #[inline] fn from(value: ByteString) -> Self { value.to_string() } } impl TryFrom<&[u8]> for ByteString { type Error = str::Utf8Error; #[inline] fn try_from(value: &[u8]) -> Result { let _ = str::from_utf8(value)?; Ok(ByteString(Bytes::copy_from_slice(value))) } } impl TryFrom> for ByteString { type Error = str::Utf8Error; #[inline] fn try_from(value: Vec) -> Result { let buf = String::from_utf8(value).map_err(|err| err.utf8_error())?; Ok(ByteString(Bytes::from(buf))) } } impl TryFrom for ByteString { type Error = str::Utf8Error; #[inline] fn try_from(value: Bytes) -> Result { let _ = str::from_utf8(value.as_ref())?; Ok(ByteString(value)) } } impl TryFrom for ByteString { type Error = str::Utf8Error; #[inline] fn try_from(value: bytes::BytesMut) -> Result { let _ = str::from_utf8(&value)?; Ok(ByteString(value.freeze())) } } macro_rules! array_impls { ($($len:expr)+) => { $( impl TryFrom<[u8; $len]> for ByteString { type Error = str::Utf8Error; #[inline] fn try_from(value: [u8; $len]) -> Result { ByteString::try_from(&value[..]) } } impl TryFrom<&[u8; $len]> for ByteString { type Error = str::Utf8Error; #[inline] fn try_from(value: &[u8; $len]) -> Result { ByteString::try_from(&value[..]) } } )+ } } array_impls!(0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32); impl fmt::Debug for ByteString { fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result { (**self).fmt(fmt) } } impl fmt::Display for ByteString { fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result { (**self).fmt(fmt) } } #[cfg(feature = "serde")] mod serde { use alloc::string::String; use serde::{ de::{Deserialize, Deserializer}, ser::{Serialize, Serializer}, }; use super::ByteString; impl Serialize for ByteString { #[inline] fn serialize(&self, serializer: S) -> Result where S: Serializer, { serializer.serialize_str(self.as_ref()) } } impl<'de> Deserialize<'de> for ByteString { #[inline] fn deserialize(deserializer: D) -> Result where D: Deserializer<'de>, { String::deserialize(deserializer).map(ByteString::from) } } #[cfg(test)] mod serde_impl_tests { use serde::de::DeserializeOwned; use static_assertions::assert_impl_all; use super::*; assert_impl_all!(ByteString: Serialize, DeserializeOwned); } } #[cfg(test)] mod test { use alloc::{borrow::ToOwned, format, vec}; use core::{ hash::{Hash, Hasher}, panic::{RefUnwindSafe, UnwindSafe}, }; use ahash::AHasher; use static_assertions::assert_impl_all; use super::*; assert_impl_all!(ByteString: Send, Sync, Unpin, Sized); assert_impl_all!(ByteString: Clone, Default, Eq, PartialOrd, Ord); assert_impl_all!(ByteString: fmt::Debug, fmt::Display); assert_impl_all!(ByteString: UnwindSafe, RefUnwindSafe); #[test] fn eq() { let s: ByteString = ByteString::from_static("test"); assert_eq!(s, "test"); assert_eq!(s, *"test"); assert_eq!(s, "test".to_owned()); } #[test] fn new() { let _: ByteString = ByteString::new(); } #[test] fn as_bytes() { let buf = ByteString::new(); assert!(buf.as_bytes().is_empty()); let buf = ByteString::from("hello"); assert_eq!(buf.as_bytes(), "hello"); } #[test] fn from_bytes_unchecked() { let buf = unsafe { ByteString::from_bytes_unchecked(Bytes::new()) }; assert!(buf.is_empty()); let buf = unsafe { ByteString::from_bytes_unchecked(Bytes::from("hello")) }; assert_eq!(buf, "hello"); } #[test] fn as_ref() { let buf = ByteString::new(); let _: &ByteString = buf.as_ref(); let _: &[u8] = buf.as_ref(); } #[test] fn borrow() { let buf = ByteString::new(); let _: &str = buf.borrow(); } #[test] fn hash() { let mut hasher1 = AHasher::default(); "str".hash(&mut hasher1); let mut hasher2 = AHasher::default(); let s = ByteString::from_static("str"); s.hash(&mut hasher2); assert_eq!(hasher1.finish(), hasher2.finish()); } #[test] fn from_string() { let s: ByteString = "hello".to_owned().into(); assert_eq!(&s, "hello"); let t: &str = s.as_ref(); assert_eq!(t, "hello"); } #[test] fn from_str() { let _: ByteString = "str".into(); let _: ByteString = "str".to_owned().into_boxed_str().into(); } #[test] fn to_string() { let buf = ByteString::from("foo"); assert_eq!(String::from(buf), "foo"); } #[test] fn from_static_str() { static _S: ByteString = ByteString::from_static("hello"); let _ = ByteString::from_static("str"); } #[test] fn try_from_slice() { let _ = ByteString::try_from(b"nice bytes").unwrap(); } #[test] fn try_from_array() { assert_eq!( ByteString::try_from([b'h', b'i']).unwrap(), ByteString::from_static("hi") ); } #[test] fn try_from_vec() { let _ = ByteString::try_from(vec![b'f', b'o', b'o']).unwrap(); ByteString::try_from(vec![0, 159, 146, 150]).unwrap_err(); } #[test] fn try_from_bytes() { let _ = ByteString::try_from(Bytes::from_static(b"nice bytes")).unwrap(); } #[test] fn try_from_bytes_mut() { let _ = ByteString::try_from(bytes::BytesMut::from(&b"nice bytes"[..])).unwrap(); } #[test] fn display() { let buf = ByteString::from("bar"); assert_eq!(format!("{buf}"), "bar"); } #[test] fn debug() { let buf = ByteString::from("baz"); assert_eq!(format!("{buf:?}"), r#""baz""#); } #[cfg(feature = "serde")] #[test] fn serialize() { let s: ByteString = serde_json::from_str(r#""nice bytes""#).unwrap(); assert_eq!(s, "nice bytes"); } #[cfg(feature = "serde")] #[test] fn deserialize() { let s = serde_json::to_string(&ByteString::from_static("nice bytes")).unwrap(); assert_eq!(s, r#""nice bytes""#); } #[test] fn slice_ref() { let string = ByteString::from_static(" foo "); let subset = string.trim(); // subset is derived from original byte string let substring = string.slice_ref(subset); assert_eq!(substring, "foo"); } #[test] #[should_panic] fn slice_ref_catches_not_a_subset() { // panics because the given slice is not derived from the original byte string, despite // being a logical subset of the string ByteString::from_static("foo bar").slice_ref("foo"); } #[test] fn split_at() { let buf = ByteString::from_static("foo bar"); let (first, last) = buf.split_at(0); assert_eq!(ByteString::from_static(""), first); assert_eq!(ByteString::from_static("foo bar"), last); let (first, last) = buf.split_at(4); assert_eq!(ByteString::from_static("foo "), first); assert_eq!(ByteString::from_static("bar"), last); let (first, last) = buf.split_at(7); assert_eq!(ByteString::from_static("foo bar"), first); assert_eq!(ByteString::from_static(""), last); } #[test] #[should_panic = "byte index 1 is not a char boundary;"] fn split_at_invalid_code_point() { ByteString::from_static("ยต").split_at(1); } #[test] #[should_panic = "byte index 9 is out of bounds"] fn split_at_outside_string() { ByteString::from_static("foo").split_at(9); } }