Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

16 files changed, 2706 insertions, 0 deletions

diff --git a/third_party/rust/tinystr/.cargo-checksum.json b/third_party/rust/tinystr/.cargo-checksum.json
new file mode 100644
index 0000000000..98a565e36e
--- /dev/null
+++ b/third_party/rust/tinystr/.cargo-checksum.json
@@ -0,0 +1 @@
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diff --git a/third_party/rust/tinystr/CHANGELOG.md b/third_party/rust/tinystr/CHANGELOG.md
new file mode 100644
index 0000000000..53a7bc64b5
--- /dev/null
+++ b/third_party/rust/tinystr/CHANGELOG.md
@@ -0,0 +1,26 @@
+# Changelog
+
+## Unreleased
+
+  - …
+
+## tinystr 0.3.2 (October 28, 2019)
+
+  - Add `from_bytes` method.
+
+## tinystr 0.3.1 (October 1, 2019)
+
+  - Documentation.
+
+## tinystr 0.3.1 (October 1, 2019)
+
+  - Documentation.
+
+## tinystr 0.3.0 (August 23, 2019)
+
+  - Separate out `is_ascii_numeric`, `is_ascii_alphanumeric` and `is_ascii_alphabetic`.
+
+## tinystr 0.2.0 (August 16, 2019)
+
+  - Add TinyStr16
+  - Add to_ascii_titlecase specialization for all TinyStr*
diff --git a/third_party/rust/tinystr/Cargo.lock b/third_party/rust/tinystr/Cargo.lock
new file mode 100644
index 0000000000..7d30422b76
--- /dev/null
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diff --git a/third_party/rust/tinystr/Cargo.toml b/third_party/rust/tinystr/Cargo.toml
new file mode 100644
index 0000000000..ea491ae7d2
--- /dev/null
+++ b/third_party/rust/tinystr/Cargo.toml
@@ -0,0 +1,33 @@
+# 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]
+edition = "2018"
+name = "tinystr"
+version = "0.3.2"
+authors = ["Raph Levien <raph.levien@gmail.com>", "Zibi Braniecki <zibi@braniecki.net>"]
+description = "A small ASCII-only bounded length string representation.\n"
+readme = "README.md"
+keywords = ["string", "str", "small", "tiny"]
+categories = ["data-structures"]
+license = "Apache-2.0/MIT"
+repository = "https://github.com/zbraniecki/tinystr"
+
+[[bench]]
+name = "construct"
+harness = false
+
+[[bench]]
+name = "tinystr"
+harness = false
+[dev-dependencies.criterion]
+version = "0.3"
diff --git a/third_party/rust/tinystr/LICENSE-APACHE b/third_party/rust/tinystr/LICENSE-APACHE
new file mode 100644
index 0000000000..16fe87b06e
--- /dev/null
+++ b/third_party/rust/tinystr/LICENSE-APACHE
@@ -0,0 +1,201 @@
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diff --git a/third_party/rust/tinystr/LICENSE-MIT b/third_party/rust/tinystr/LICENSE-MIT
new file mode 100644
index 0000000000..31aa79387f
--- /dev/null
+++ b/third_party/rust/tinystr/LICENSE-MIT
@@ -0,0 +1,23 @@
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diff --git a/third_party/rust/tinystr/README.md b/third_party/rust/tinystr/README.md
new file mode 100644
index 0000000000..fb26c8307d
--- /dev/null
+++ b/third_party/rust/tinystr/README.md
@@ -0,0 +1,84 @@
+# tinystr [![crates.io](http://meritbadge.herokuapp.com/tinystr)](https://crates.io/crates/tinystr) [![Build Status](https://travis-ci.org/zbraniecki/tinystr.svg?branch=master)](https://travis-ci.org/zbraniecki/tinystr) [![Coverage Status](https://coveralls.io/repos/github/zbraniecki/tinystr/badge.svg?branch=master)](https://coveralls.io/github/zbraniecki/tinystr?branch=master)
+
+`tinystr` is a small ASCII-only bounded length string representation.
+
+Usage
+-----
+
+```rust
+use tinystr::{TinyStr4, TinyStr8, TinyStr16};
+
+fn main() {
+    let s1: TinyStr4 = "tEsT".parse()
+        .expect("Failed to parse.");
+
+    assert_eq!(s1, "tEsT");
+    assert_eq!(s1.to_ascii_uppercase(), "TEST");
+    assert_eq!(s1.to_ascii_lowercase(), "test");
+    assert_eq!(s1.to_ascii_titlecase(), "Test");
+    assert_eq!(s1.is_ascii_alphanumeric(), true);
+
+    let s2: TinyStr8 = "New York".parse()
+        .expect("Failed to parse.");
+
+    assert_eq!(s2, "New York");
+    assert_eq!(s2.to_ascii_uppercase(), "NEW YORK");
+    assert_eq!(s2.to_ascii_lowercase(), "new york");
+    assert_eq!(s2.to_ascii_titlecase(), "New york");
+    assert_eq!(s2.is_ascii_alphanumeric(), false);
+
+    let s3: TinyStr16 = "metaMoRphosis123".parse()
+        .expect("Failed to parse.");
+
+    assert_eq!(s3, "metaMoRphosis123");
+    assert_eq!(s3.to_ascii_uppercase(), "METAMORPHOSIS123");
+    assert_eq!(s3.to_ascii_lowercase(), "metamorphosis123");
+    assert_eq!(s3.to_ascii_titlecase(), "Metamorphosis123");
+    assert_eq!(s3.is_ascii_alphanumeric(), true);
+}
+```
+
+Details
+-------
+
+The crateh provides three structs:
+ * `TinyStr4` an ASCII-only string limited to 4 characters.
+ * `TinyStr8` an ASCII-only string limited to 8 characters.
+ * `TinyStr16` an ASCII-only string limited to 16 characters.
+
+It stores them as `u32`/`u64`/`u128` and uses bitmasking to provide basic string manipulation operations:
+ * is_ascii_numeric
+ * is_ascii_alphabetic
+ * is_ascii_alphanumeric
+ * to_ascii_lowercase
+ * to_ascii_uppercase
+ * to_ascii_titlecase
+ * PartialEq
+
+This set is sufficient for certain classes of uses such as `unic-langid` libraries.
+
+Performance
+-----------
+
+For those uses, TinyStr provides [performance characteristics](https://github.com/zbraniecki/tinystr/wiki/Performance) much better than the regular `String`.
+
+Status
+------
+
+The crate is fully functional and ready to be used in production.
+The capabilities can be extended.
+
+#### License
+
+<sup>
+Licensed under either of <a href="LICENSE-APACHE">Apache License, Version
+2.0</a> or <a href="LICENSE-MIT">MIT license</a> at your option.
+</sup>
+
+<br>
+
+<sub>
+Unless you explicitly state otherwise, any contribution intentionally submitted
+for inclusion in Serde by you, as defined in the Apache-2.0 license, shall be
+dual licensed as above, without any additional terms or conditions.
+</sub>
diff --git a/third_party/rust/tinystr/benches/construct.rs b/third_party/rust/tinystr/benches/construct.rs
new file mode 100644
index 0000000000..854a1b0653
--- /dev/null
+++ b/third_party/rust/tinystr/benches/construct.rs
@@ -0,0 +1,151 @@
+use criterion::black_box;
+use criterion::criterion_group;
+use criterion::criterion_main;
+use criterion::Bencher;
+use criterion::Criterion;
+use criterion::Fun;
+
+use tinystr::{TinyStr16, TinyStr4, TinyStr8};
+
+static STRINGS_4: &[&str] = &[
+    "US", "GB", "AR", "Hans", "CN", "AT", "PL", "FR", "AT", "Cyrl", "SR", "NO", "FR", "MK", "UK",
+];
+
+static STRINGS_8: &[&str] = &[
+    "Latn", "windows", "AR", "Hans", "macos", "AT", "pl", "FR", "en", "Cyrl", "SR", "NO", "419",
+    "und", "UK",
+];
+
+static STRINGS_16: &[&str] = &[
+    "Latn",
+    "windows",
+    "AR",
+    "Hans",
+    "macos",
+    "AT",
+    "infiniband",
+    "FR",
+    "en",
+    "Cyrl",
+    "FromIntegral",
+    "NO",
+    "419",
+    "MacintoshOSX2019",
+    "UK",
+];
+
+macro_rules! bench_block {
+    ($c:expr, $name:expr, $action:ident) => {
+        let funcs = vec![
+            Fun::new("String", $action!(String)),
+            Fun::new("TinyStr4", $action!(TinyStr4)),
+            Fun::new("TinyStr8", $action!(TinyStr8)),
+            Fun::new("TinyStr16", $action!(TinyStr16)),
+        ];
+
+        $c.bench_functions(&format!("{}/4", $name), funcs, STRINGS_4);
+
+        let funcs = vec![
+            Fun::new("String", $action!(String)),
+            Fun::new("TinyStr8", $action!(TinyStr8)),
+            Fun::new("TinyStr16", $action!(TinyStr16)),
+        ];
+
+        $c.bench_functions(&format!("{}/8", $name), funcs, STRINGS_8);
+
+        let funcs = vec![
+            Fun::new("String", $action!(String)),
+            Fun::new("TinyStr16", $action!(TinyStr16)),
+        ];
+
+        $c.bench_functions(&format!("{}/16", $name), funcs, STRINGS_16);
+    };
+}
+
+fn construct_from_str(c: &mut Criterion) {
+    macro_rules! cfs {
+        ($r:ty) => {
+            |b: &mut Bencher, strings: &&[&str]| {
+                b.iter(|| {
+                    for s in *strings {
+                        let _: $r = black_box(s.parse().unwrap());
+                    }
+                })
+            }
+        };
+    };
+
+    bench_block!(c, "construct_from_str", cfs);
+}
+
+fn construct_from_bytes(c: &mut Criterion) {
+    macro_rules! cfu {
+        ($r:ty) => {
+            |b, inputs: &&[&str]| {
+                let raw: Vec<&[u8]> = inputs.iter().map(|s| s.as_bytes()).collect();
+                b.iter(move || {
+                    for u in &raw {
+                        let _ = black_box(<$r>::from_bytes(*u).unwrap());
+                    }
+                })
+            }
+        };
+    };
+
+    let funcs = vec![
+        Fun::new("TinyStr4", cfu!(TinyStr4)),
+        Fun::new("TinyStr8", cfu!(TinyStr8)),
+        Fun::new("TinyStr16", cfu!(TinyStr16)),
+    ];
+
+    c.bench_functions("construct_from_bytes/4", funcs, STRINGS_4);
+
+    let funcs = vec![
+        Fun::new("TinyStr8", cfu!(TinyStr8)),
+        Fun::new("TinyStr16", cfu!(TinyStr16)),
+    ];
+
+    c.bench_functions("construct_from_bytes/8", funcs, STRINGS_8);
+
+    let funcs = vec![Fun::new("TinyStr16", cfu!(TinyStr16))];
+
+    c.bench_functions("construct_from_bytes/16", funcs, STRINGS_16);
+}
+
+fn construct_unchecked(c: &mut Criterion) {
+    macro_rules! cu {
+        ($tty:ty, $rty:ty) => {
+            |b, inputs: &&[&str]| {
+                let raw: Vec<$rty> = inputs
+                    .iter()
+                    .map(|s| s.parse::<$tty>().unwrap().into())
+                    .collect();
+                b.iter(move || {
+                    for num in &raw {
+                        let _ = unsafe { <$tty>::new_unchecked(black_box(*num)) };
+                    }
+                })
+            }
+        };
+    };
+
+    let funcs = vec![Fun::new("TinyStr4", cu!(TinyStr4, u32))];
+
+    c.bench_functions("construct_unchecked/4", funcs, STRINGS_4);
+
+    let funcs = vec![Fun::new("TinyStr8", cu!(TinyStr8, u64))];
+
+    c.bench_functions("construct_unchecked/8", funcs, STRINGS_8);
+
+    let funcs = vec![Fun::new("TinyStr16", cu!(TinyStr16, u128))];
+
+    c.bench_functions("construct_unchecked/16", funcs, STRINGS_16);
+}
+
+criterion_group!(
+    benches,
+    construct_from_str,
+    construct_from_bytes,
+    construct_unchecked,
+);
+criterion_main!(benches);
diff --git a/third_party/rust/tinystr/benches/tinystr.rs b/third_party/rust/tinystr/benches/tinystr.rs
new file mode 100644
index 0000000000..83b26a30a2
--- /dev/null
+++ b/third_party/rust/tinystr/benches/tinystr.rs
@@ -0,0 +1,176 @@
+use criterion::black_box;
+use criterion::criterion_group;
+use criterion::criterion_main;
+use criterion::Bencher;
+use criterion::Criterion;
+use criterion::Fun;
+
+use tinystr::{TinyStr16, TinyStr4, TinyStr8};
+
+static STRINGS_4: &[&str] = &[
+    "US", "GB", "AR", "Hans", "CN", "AT", "PL", "FR", "AT", "Cyrl", "SR", "NO", "FR", "MK", "UK",
+];
+
+static STRINGS_8: &[&str] = &[
+    "Latn", "windows", "AR", "Hans", "macos", "AT", "pl", "FR", "en", "Cyrl", "SR", "NO", "419",
+    "und", "UK",
+];
+
+static STRINGS_16: &[&str] = &[
+    "Latn",
+    "windows",
+    "AR",
+    "Hans",
+    "macos",
+    "AT",
+    "infiniband",
+    "FR",
+    "en",
+    "Cyrl",
+    "FromIntegral",
+    "NO",
+    "419",
+    "MacintoshOSX2019",
+    "UK",
+];
+
+macro_rules! bench_block {
+    ($c:expr, $name:expr, $action:ident) => {
+        let funcs = vec![
+            Fun::new("String", $action!(String)),
+            Fun::new("TinyStr4", $action!(TinyStr4)),
+            Fun::new("TinyStr8", $action!(TinyStr8)),
+            Fun::new("TinyStr16", $action!(TinyStr16)),
+        ];
+
+        $c.bench_functions(&format!("{}/4", $name), funcs, STRINGS_4);
+
+        let funcs = vec![
+            Fun::new("String", $action!(String)),
+            Fun::new("TinyStr8", $action!(TinyStr8)),
+            Fun::new("TinyStr16", $action!(TinyStr16)),
+        ];
+
+        $c.bench_functions(&format!("{}/8", $name), funcs, STRINGS_8);
+
+        let funcs = vec![
+            Fun::new("String", $action!(String)),
+            Fun::new("TinyStr16", $action!(TinyStr16)),
+        ];
+
+        $c.bench_functions(&format!("{}/16", $name), funcs, STRINGS_16);
+    };
+}
+
+macro_rules! convert_to_ascii {
+    ($ty:ty, $action:ident) => {
+        |b: &mut Bencher, inputs: &&[&str]| {
+            let raw: Vec<$ty> = inputs.iter().map(|s| s.parse::<$ty>().unwrap()).collect();
+            b.iter(move || {
+                for s in &raw {
+                    let _ = black_box(s.$action());
+                }
+            })
+        }
+    };
+}
+
+fn convert_to_ascii_lowercase(c: &mut Criterion) {
+    macro_rules! ctal {
+        ($ty:ty) => {
+            convert_to_ascii!($ty, to_ascii_lowercase)
+        };
+    }
+
+    bench_block!(c, "convert_to_ascii_lowercase", ctal);
+}
+
+fn convert_to_ascii_uppercase(c: &mut Criterion) {
+    macro_rules! ctau {
+        ($ty:ty) => {
+            convert_to_ascii!($ty, to_ascii_uppercase)
+        };
+    }
+
+    bench_block!(c, "convert_to_ascii_uppercase", ctau);
+}
+
+trait ExtToAsciiTitlecase {
+    #[inline(always)]
+    fn to_ascii_titlecase(&self) -> String;
+}
+
+impl ExtToAsciiTitlecase for str {
+    fn to_ascii_titlecase(&self) -> String {
+        let mut result = self.to_ascii_lowercase();
+        result[0..1].make_ascii_uppercase();
+        result
+    }
+}
+
+fn convert_to_ascii_titlecase(c: &mut Criterion) {
+    macro_rules! ctat {
+        ($ty:ty) => {
+            convert_to_ascii!($ty, to_ascii_titlecase)
+        };
+    }
+
+    bench_block!(c, "convert_to_ascii_titlecase", ctat);
+}
+
+trait ExtIsAsciiAlphanumeric {
+    #[inline(always)]
+    fn is_ascii_alphanumeric(&self) -> bool;
+}
+
+impl ExtIsAsciiAlphanumeric for str {
+    fn is_ascii_alphanumeric(&self) -> bool {
+        self.chars().all(|c| c.is_ascii_alphanumeric())
+    }
+}
+
+fn test_is_ascii_alphanumeric(c: &mut Criterion) {
+    macro_rules! tiaa {
+        ($ty:ty) => {
+            |b: &mut Bencher, inputs: &&[&str]| {
+                let raw: Vec<$ty> = inputs.iter().map(|s| s.parse::<$ty>().unwrap()).collect();
+                b.iter(move || {
+                    for s in &raw {
+                        let _ = black_box(s.is_ascii_alphanumeric());
+                    }
+                })
+            }
+        };
+    }
+
+    bench_block!(c, "test_is_ascii_alphanumeric", tiaa);
+}
+
+fn test_eq(c: &mut Criterion) {
+    macro_rules! te {
+        ($ty:ty) => {
+            |b: &mut Bencher, inputs: &&[&str]| {
+                let raw: Vec<$ty> = inputs.iter().map(|s| s.parse::<$ty>().unwrap()).collect();
+                b.iter(move || {
+                    for s in &raw {
+                        for l in &raw {
+                            let _ = black_box(s == l);
+                        }
+                    }
+                })
+            }
+        };
+    }
+
+    bench_block!(c, "test_eq", te);
+}
+
+criterion_group!(
+    benches,
+    convert_to_ascii_lowercase,
+    convert_to_ascii_uppercase,
+    convert_to_ascii_titlecase,
+    test_is_ascii_alphanumeric,
+    test_eq,
+);
+criterion_main!(benches);
diff --git a/third_party/rust/tinystr/examples/main.rs b/third_party/rust/tinystr/examples/main.rs
new file mode 100644
index 0000000000..2e0d2a10bc
--- /dev/null
+++ b/third_party/rust/tinystr/examples/main.rs
@@ -0,0 +1,18 @@
+use tinystr::{TinyStr4, TinyStr8};
+
+fn main() {
+    let s1: TinyStr4 = "tEsT".parse().expect("Failed to parse.");
+
+    assert_eq!(s1, "tEsT");
+    assert_eq!(s1.to_ascii_uppercase(), "TEST");
+    assert_eq!(s1.to_ascii_lowercase(), "test");
+    assert_eq!(s1.to_ascii_titlecase(), "Test");
+    assert_eq!(s1.is_ascii_alphanumeric(), true);
+
+    let s2: TinyStr8 = "New York".parse().expect("Failed to parse.");
+
+    assert_eq!(s2, "New York");
+    assert_eq!(s2.to_ascii_uppercase(), "NEW YORK");
+    assert_eq!(s2.to_ascii_lowercase(), "new york");
+    assert_eq!(s2.is_ascii_alphanumeric(), false);
+}
diff --git a/third_party/rust/tinystr/src/helpers.rs b/third_party/rust/tinystr/src/helpers.rs
new file mode 100644
index 0000000000..9b5be84152
--- /dev/null
+++ b/third_party/rust/tinystr/src/helpers.rs
@@ -0,0 +1,23 @@
+use std::num::NonZeroU32;
+use std::ptr::copy_nonoverlapping;
+
+use super::Error;
+
+#[inline(always)]
+pub(crate) unsafe fn make_4byte_bytes(
+    bytes: &[u8],
+    len: usize,
+    mask: u32,
+) -> Result<NonZeroU32, Error> {
+    // Mask is always supplied as little-endian.
+    let mask = u32::from_le(mask);
+    let mut word: u32 = 0;
+    copy_nonoverlapping(bytes.as_ptr(), &mut word as *mut u32 as *mut u8, len);
+    if (word & mask) != 0 {
+        return Err(Error::NonAscii);
+    }
+    if ((mask - word) & mask) != 0 {
+        return Err(Error::InvalidNull);
+    }
+    Ok(NonZeroU32::new_unchecked(word))
+}
diff --git a/third_party/rust/tinystr/src/lib.rs b/third_party/rust/tinystr/src/lib.rs
new file mode 100644
index 0000000000..ba317ac8f6
--- /dev/null
+++ b/third_party/rust/tinystr/src/lib.rs
@@ -0,0 +1,51 @@
+//! `tinystr` is a small ASCII-only bounded length string representation.
+//!
+//! The crate is meant to be used for scenarios where one needs a fast
+//! and memory efficient way to store and manipulate short ASCII-only strings.
+//!
+//! `tinystr` converts each string into an unsigned integer, and uses bitmasking
+//! to compare, convert cases and test for common characteristics of strings.
+//!
+//! # Example
+//!
+//! ```
+//! use tinystr::{TinyStr4, TinyStr8};
+//!
+//! fn main() {
+//!     let s1: TinyStr4 = "tEsT".parse()
+//!         .expect("Failed to parse.");
+//!
+//!     assert_eq!(s1, "tEsT");
+//!     assert_eq!(s1.to_ascii_uppercase(), "TEST");
+//!     assert_eq!(s1.to_ascii_lowercase(), "test");
+//!     assert_eq!(s1.to_ascii_titlecase(), "Test");
+//!     assert_eq!(s1.is_ascii_alphanumeric(), true);
+//!
+//!     let s2: TinyStr8 = "New York".parse()
+//!         .expect("Failed to parse.");
+//!
+//!     assert_eq!(s2, "New York");
+//!     assert_eq!(s2.to_ascii_uppercase(), "NEW YORK");
+//!     assert_eq!(s2.to_ascii_lowercase(), "new york");
+//!     assert_eq!(s2.is_ascii_alphanumeric(), false);
+//! }
+//! ```
+mod helpers;
+mod tinystr16;
+mod tinystr4;
+mod tinystr8;
+
+pub use tinystr16::TinyStr16;
+pub use tinystr4::TinyStr4;
+pub use tinystr8::TinyStr8;
+
+/// Enum to store the various types of errors that can cause parsing a TinyStr to fail.
+#[derive(PartialEq, Eq, Debug)]
+pub enum Error {
+    /// String is too large or too small to store as TinyStr.
+    InvalidSize,
+    /// String is empty.
+    InvalidNull,
+    /// String contains non-ASCII character(s).
+    NonAscii,
+}
diff --git a/third_party/rust/tinystr/src/tinystr16.rs b/third_party/rust/tinystr/src/tinystr16.rs
new file mode 100644
index 0000000000..c089516419
--- /dev/null
+++ b/third_party/rust/tinystr/src/tinystr16.rs
@@ -0,0 +1,321 @@
+use std::cmp::Ordering;
+use std::convert::Into;
+use std::fmt;
+use std::num::NonZeroU128;
+use std::ops::Deref;
+use std::ptr::copy_nonoverlapping;
+use std::str::FromStr;
+
+use crate::Error;
+
+/// A tiny string that is from 1 to 16 non-NUL ASCII characters.
+///
+/// # Examples
+///
+/// ```
+/// use tinystr::TinyStr16;
+///
+/// let s1: TinyStr16 = "Metamorphosis".parse()
+///     .expect("Failed to parse.");
+///
+/// assert_eq!(s1, "Metamorphosis");
+/// assert!(s1.is_ascii_alphabetic());
+/// ```
+#[derive(Copy, Clone, PartialEq, Eq, Hash)]
+pub struct TinyStr16(NonZeroU128);
+
+impl TinyStr16 {
+    /// Creates a TinyStr16 from a byte slice.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr16;
+    ///
+    /// let s1 = TinyStr16::from_bytes("Testing".as_bytes())
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1, "Testing");
+    /// ```
+    #[inline(always)]
+    pub fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
+        let len = bytes.len();
+        if len < 1 || len > 16 {
+            return Err(Error::InvalidSize);
+        }
+        unsafe {
+            let mut word: u128 = 0;
+            copy_nonoverlapping(bytes.as_ptr(), &mut word as *mut u128 as *mut u8, len);
+            let mask = 0x80808080_80808080_80808080_80808080u128 >> (8 * (16 - len));
+            // TODO: could do this with #cfg(target_endian), but this is clearer and
+            // more confidence-inspiring.
+            let mask = u128::from_le(mask);
+            if (word & mask) != 0 {
+                return Err(Error::NonAscii);
+            }
+            if ((mask - word) & mask) != 0 {
+                return Err(Error::InvalidNull);
+            }
+            Ok(Self(NonZeroU128::new_unchecked(word)))
+        }
+    }
+
+    /// An unsafe constructor intended for cases where the consumer
+    /// guarantees that the input is a little endian integer which
+    /// is a correct representation of a `TinyStr16` string.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr16;
+    ///
+    /// let s1: TinyStr16 = "Metamorphosis".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// let num: u128 = s1.into();
+    ///
+    /// let s2 = unsafe { TinyStr16::new_unchecked(num) };
+    ///
+    /// assert_eq!(s1, s2);
+    /// assert_eq!(s2.as_str(), "Metamorphosis");
+    /// ```
+    #[inline(always)]
+    pub const unsafe fn new_unchecked(text: u128) -> Self {
+        Self(NonZeroU128::new_unchecked(u128::from_le(text)))
+    }
+
+    /// Extracts a string slice containing the entire `TinyStr16`.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr16;
+    ///
+    /// let s1: TinyStr16 = "Metamorphosis".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1.as_str(), "Metamorphosis");
+    /// ```
+    #[inline(always)]
+    pub fn as_str(&self) -> &str {
+        self.deref()
+    }
+
+    /// Checks if the value is composed of ASCII alphabetic characters:
+    ///
+    ///  * U+0041 'A' ..= U+005A 'Z', or
+    ///  * U+0061 'a' ..= U+007A 'z'.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr16;
+    ///
+    /// let s1: TinyStr16 = "Metamorphosis".parse()
+    ///     .expect("Failed to parse.");
+    /// let s2: TinyStr16 = "Met3mo4pho!is".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert!(s1.is_ascii_alphabetic());
+    /// assert!(!s2.is_ascii_alphabetic());
+    /// ```
+    pub fn is_ascii_alphabetic(self) -> bool {
+        let word = self.0.get();
+        let mask =
+            (word + 0x7f7f7f7f_7f7f7f7f_7f7f7f7f_7f7f7f7f) & 0x80808080_80808080_80808080_80808080;
+        let lower = word | 0x20202020_20202020_20202020_20202020;
+        let alpha = !(lower + 0x1f1f1f1f_1f1f1f1f_1f1f1f1f_1f1f1f1f)
+            | (lower + 0x05050505_05050505_05050505_05050505);
+        (alpha & mask) == 0
+    }
+
+    /// Checks if the value is composed of ASCII alphanumeric characters:
+    ///
+    ///  * U+0041 'A' ..= U+005A 'Z', or
+    ///  * U+0061 'a' ..= U+007A 'z', or
+    ///  * U+0030 '0' ..= U+0039 '9'.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr16;
+    ///
+    /// let s1: TinyStr16 = "A15bingA1".parse()
+    ///     .expect("Failed to parse.");
+    /// let s2: TinyStr16 = "[3@w00Fs1".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert!(s1.is_ascii_alphanumeric());
+    /// assert!(!s2.is_ascii_alphanumeric());
+    /// ```
+    pub fn is_ascii_alphanumeric(self) -> bool {
+        let word = self.0.get();
+        let mask =
+            (word + 0x7f7f7f7f_7f7f7f7f_7f7f7f7f_7f7f7f7f) & 0x80808080_80808080_80808080_80808080;
+        let numeric = !(word + 0x50505050_50505050_50505050_50505050)
+            | (word + 0x46464646_46464646_46464646_46464646);
+        let lower = word | 0x20202020_20202020_20202020_20202020;
+        let alpha = !(lower + 0x1f1f1f1f_1f1f1f1f_1f1f1f1f_1f1f1f1f)
+            | (lower + 0x05050505_05050505_05050505_05050505);
+        (alpha & numeric & mask) == 0
+    }
+
+    /// Checks if the value is composed of ASCII decimal digits:
+    ///
+    ///  * U+0030 '0' ..= U+0039 '9'.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr16;
+    ///
+    /// let s1: TinyStr16 = "31212314141".parse()
+    ///     .expect("Failed to parse.");
+    /// let s2: TinyStr16 = "3d3d3d3d".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert!(s1.is_ascii_numeric());
+    /// assert!(!s2.is_ascii_numeric());
+    /// ```
+    pub fn is_ascii_numeric(self) -> bool {
+        let word = self.0.get();
+        let mask =
+            (word + 0x7f7f7f7f_7f7f7f7f_7f7f7f7f_7f7f7f7f) & 0x80808080_80808080_80808080_80808080;
+        let numeric = !(word + 0x50505050_50505050_50505050_50505050)
+            | (word + 0x46464646_46464646_46464646_46464646);
+        (numeric & mask) == 0
+    }
+
+    /// Converts this type to its ASCII lower case equivalent in-place.
+    ///
+    /// ASCII letters 'A' to 'Z' are mapped to 'a' to 'z', other characters are unchanged.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr16;
+    ///
+    /// let s1: TinyStr16 = "MeTAmOrpHo3sis".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1.to_ascii_lowercase(), "metamorpho3sis");
+    /// ```
+    pub fn to_ascii_lowercase(self) -> Self {
+        let word = self.0.get();
+        let result = word
+            | (((word + 0x3f3f3f3f_3f3f3f3f_3f3f3f3f_3f3f3f3f)
+                & !(word + 0x25252525_25252525_25252525_25252525)
+                & 0x80808080_80808080_80808080_80808080)
+                >> 2);
+        unsafe { Self(NonZeroU128::new_unchecked(result)) }
+    }
+
+    /// Converts this type to its ASCII title case equivalent in-place.
+    ///
+    /// First character, if is an ASCII letter 'a' to 'z' is mapped to 'A' to 'Z',
+    /// other characters are unchanged.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr16;
+    ///
+    /// let s1: TinyStr16 = "metamorphosis".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1.to_ascii_titlecase(), "Metamorphosis");
+    /// ```
+    pub fn to_ascii_titlecase(self) -> Self {
+        let word = self.0.get().to_le();
+        let mask = ((word + 0x3f3f3f3f_3f3f3f3f_3f3f3f3f_3f3f3f1f)
+            & !(word + 0x25252525_25252525_25252525_25252505)
+            & 0x80808080_80808080_80808080_80808080)
+            >> 2;
+        let result = (word | mask) & !(0x20 & mask);
+        unsafe { Self(NonZeroU128::new_unchecked(u128::from_le(result))) }
+    }
+
+    /// Converts this type to its ASCII upper case equivalent in-place.
+    ///
+    /// ASCII letters 'a' to 'z' are mapped to 'A' to 'Z', other characters are unchanged.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr16;
+    ///
+    /// let s1: TinyStr16 = "Met3amorphosis".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1.to_ascii_uppercase(), "MET3AMORPHOSIS");
+    /// ```
+    pub fn to_ascii_uppercase(self) -> Self {
+        let word = self.0.get();
+        let result = word
+            & !(((word + 0x1f1f1f1f_1f1f1f1f_1f1f1f1f_1f1f1f1f)
+                & !(word + 0x05050505_05050505_05050505_05050505)
+                & 0x80808080_80808080_80808080_80808080)
+                >> 2);
+        unsafe { Self(NonZeroU128::new_unchecked(result)) }
+    }
+}
+
+impl fmt::Display for TinyStr16 {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}", self.deref())
+    }
+}
+
+impl fmt::Debug for TinyStr16 {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{:?}", self.deref())
+    }
+}
+
+impl Deref for TinyStr16 {
+    type Target = str;
+
+    #[inline(always)]
+    fn deref(&self) -> &str {
+        // Again, could use #cfg to hand-roll a big-endian implementation.
+        let word = self.0.get().to_le();
+        let len = (16 - word.leading_zeros() / 8) as usize;
+        unsafe {
+            let slice = core::slice::from_raw_parts(&self.0 as *const _ as *const u8, len);
+            std::str::from_utf8_unchecked(slice)
+        }
+    }
+}
+
+impl PartialEq<&str> for TinyStr16 {
+    fn eq(&self, other: &&str) -> bool {
+        self.deref() == *other
+    }
+}
+
+impl PartialOrd for TinyStr16 {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        Some(self.cmp(other))
+    }
+}
+
+impl Ord for TinyStr16 {
+    fn cmp(&self, other: &Self) -> Ordering {
+        self.0.get().to_be().cmp(&other.0.get().to_be())
+    }
+}
+
+impl FromStr for TinyStr16 {
+    type Err = Error;
+
+    #[inline(always)]
+    fn from_str(text: &str) -> Result<Self, Self::Err> {
+        Self::from_bytes(text.as_bytes())
+    }
+}
+
+impl Into<u128> for TinyStr16 {
+    fn into(self) -> u128 {
+        self.0.get().to_le()
+    }
+}
diff --git a/third_party/rust/tinystr/src/tinystr4.rs b/third_party/rust/tinystr/src/tinystr4.rs
new file mode 100644
index 0000000000..b454f3f89e
--- /dev/null
+++ b/third_party/rust/tinystr/src/tinystr4.rs
@@ -0,0 +1,293 @@
+use std::cmp::Ordering;
+use std::convert::Into;
+use std::fmt;
+use std::num::NonZeroU32;
+use std::ops::Deref;
+use std::str::FromStr;
+
+use crate::helpers::make_4byte_bytes;
+use crate::Error;
+
+/// A tiny string that is from 1 to 4 non-NUL ASCII characters.
+///
+/// # Examples
+///
+/// ```
+/// use tinystr::TinyStr4;
+///
+/// let s1: TinyStr4 = "Test".parse()
+///     .expect("Failed to parse.");
+///
+/// assert_eq!(s1, "Test");
+/// assert!(s1.is_ascii_alphabetic());
+/// ```
+#[derive(Copy, Clone, PartialEq, Eq, Hash)]
+pub struct TinyStr4(NonZeroU32);
+
+impl TinyStr4 {
+    /// Creates a TinyStr4 from a byte slice.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr4;
+    ///
+    /// let s1 = TinyStr4::from_bytes("Test".as_bytes())
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1, "Test");
+    /// ```
+    #[inline(always)]
+    pub fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
+        unsafe {
+            match bytes.len() {
+                1 => make_4byte_bytes(bytes, 1, 0x80).map(Self),
+                2 => make_4byte_bytes(bytes, 2, 0x8080).map(Self),
+                3 => make_4byte_bytes(bytes, 3, 0x0080_8080).map(Self),
+                4 => make_4byte_bytes(bytes, 4, 0x8080_8080).map(Self),
+                _ => Err(Error::InvalidSize),
+            }
+        }
+    }
+
+    /// An unsafe constructor intended for cases where the consumer
+    /// guarantees that the input is a little endian integer which
+    /// is a correct representation of a `TinyStr4` string.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr4;
+    ///
+    /// let s1: TinyStr4 = "Test".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// let num: u32 = s1.into();
+    ///
+    /// let s2 = unsafe { TinyStr4::new_unchecked(num) };
+    ///
+    /// assert_eq!(s1, s2);
+    /// assert_eq!(s2.as_str(), "Test");
+    /// ```
+    #[inline(always)]
+    pub const unsafe fn new_unchecked(text: u32) -> Self {
+        Self(NonZeroU32::new_unchecked(u32::from_le(text)))
+    }
+
+    /// Extracts a string slice containing the entire `TinyStr4`.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr4;
+    ///
+    /// let s1: TinyStr4 = "Test".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1.as_str(), "Test");
+    /// ```
+    #[inline(always)]
+    pub fn as_str(&self) -> &str {
+        self.deref()
+    }
+
+    /// Checks if the value is composed of ASCII alphabetic characters:
+    ///
+    ///  * U+0041 'A' ..= U+005A 'Z', or
+    ///  * U+0061 'a' ..= U+007A 'z'.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr4;
+    ///
+    /// let s1: TinyStr4 = "Test".parse()
+    ///     .expect("Failed to parse.");
+    /// let s2: TinyStr4 = "Te3t".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert!(s1.is_ascii_alphabetic());
+    /// assert!(!s2.is_ascii_alphabetic());
+    /// ```
+    pub fn is_ascii_alphabetic(self) -> bool {
+        let word = self.0.get();
+        let mask = (word + 0x7f7f_7f7f) & 0x8080_8080;
+        let lower = word | 0x2020_2020;
+        let alpha = !(lower + 0x1f1f_1f1f) | (lower + 0x0505_0505);
+        (alpha & mask) == 0
+    }
+
+    /// Checks if the value is composed of ASCII alphanumeric characters:
+    ///
+    ///  * U+0041 'A' ..= U+005A 'Z', or
+    ///  * U+0061 'a' ..= U+007A 'z', or
+    ///  * U+0030 '0' ..= U+0039 '9'.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr4;
+    ///
+    /// let s1: TinyStr4 = "A15b".parse()
+    ///     .expect("Failed to parse.");
+    /// let s2: TinyStr4 = "[3@w".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert!(s1.is_ascii_alphanumeric());
+    /// assert!(!s2.is_ascii_alphanumeric());
+    /// ```
+    pub fn is_ascii_alphanumeric(self) -> bool {
+        let word = self.0.get();
+        let mask = (word + 0x7f7f_7f7f) & 0x8080_8080;
+        let numeric = !(word + 0x5050_5050) | (word + 0x4646_4646);
+        let lower = word | 0x2020_2020;
+        let alpha = !(lower + 0x1f1f_1f1f) | (lower + 0x0505_0505);
+        (alpha & numeric & mask) == 0
+    }
+
+    /// Checks if the value is composed of ASCII decimal digits:
+    ///
+    ///  * U+0030 '0' ..= U+0039 '9'.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr4;
+    ///
+    /// let s1: TinyStr4 = "312".parse()
+    ///     .expect("Failed to parse.");
+    /// let s2: TinyStr4 = "3d".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert!(s1.is_ascii_numeric());
+    /// assert!(!s2.is_ascii_numeric());
+    /// ```
+    pub fn is_ascii_numeric(self) -> bool {
+        let word = self.0.get();
+        let mask = (word + 0x7f7f_7f7f) & 0x8080_8080;
+        let numeric = !(word + 0x5050_5050) | (word + 0x4646_4646);
+        (numeric & mask) == 0
+    }
+
+    /// Converts this type to its ASCII lower case equivalent in-place.
+    ///
+    /// ASCII letters 'A' to 'Z' are mapped to 'a' to 'z', other characters are unchanged.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr4;
+    ///
+    /// let s1: TinyStr4 = "TeS3".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1.to_ascii_lowercase(), "tes3");
+    /// ```
+    pub fn to_ascii_lowercase(self) -> Self {
+        let word = self.0.get();
+        let result = word | (((word + 0x3f3f_3f3f) & !(word + 0x2525_2525) & 0x8080_8080) >> 2);
+        unsafe { Self(NonZeroU32::new_unchecked(result)) }
+    }
+
+    /// Converts this type to its ASCII title case equivalent in-place.
+    ///
+    /// First character, if is an ASCII letter 'a' to 'z' is mapped to 'A' to 'Z',
+    /// other characters are unchanged.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr4;
+    ///
+    /// let s1: TinyStr4 = "test".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1.to_ascii_titlecase(), "Test");
+    /// ```
+    pub fn to_ascii_titlecase(self) -> Self {
+        let word = self.0.get().to_le();
+        let mask = ((word + 0x3f3f_3f1f) & !(word + 0x2525_2505) & 0x8080_8080) >> 2;
+        let result = (word | mask) & !(0x20 & mask);
+        unsafe { Self(NonZeroU32::new_unchecked(u32::from_le(result))) }
+    }
+
+    /// Converts this type to its ASCII upper case equivalent in-place.
+    ///
+    /// ASCII letters 'a' to 'z' are mapped to 'A' to 'Z', other characters are unchanged.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr4;
+    ///
+    /// let s1: TinyStr4 = "Tes3".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1.to_ascii_uppercase(), "TES3");
+    /// ```
+    pub fn to_ascii_uppercase(self) -> Self {
+        let word = self.0.get();
+        let result = word & !(((word + 0x1f1f_1f1f) & !(word + 0x0505_0505) & 0x8080_8080) >> 2);
+        unsafe { Self(NonZeroU32::new_unchecked(result)) }
+    }
+}
+
+impl fmt::Display for TinyStr4 {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}", self.deref())
+    }
+}
+
+impl fmt::Debug for TinyStr4 {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{:?}", self.deref())
+    }
+}
+
+impl Deref for TinyStr4 {
+    type Target = str;
+
+    #[inline(always)]
+    fn deref(&self) -> &str {
+        // Again, could use #cfg to hand-roll a big-endian implementation.
+        let word = self.0.get().to_le();
+        let len = (4 - word.leading_zeros() / 8) as usize;
+        unsafe {
+            let slice = core::slice::from_raw_parts(&self.0 as *const _ as *const u8, len);
+            std::str::from_utf8_unchecked(slice)
+        }
+    }
+}
+
+impl PartialEq<&str> for TinyStr4 {
+    fn eq(&self, other: &&str) -> bool {
+        self.deref() == *other
+    }
+}
+
+impl PartialOrd for TinyStr4 {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        Some(self.cmp(other))
+    }
+}
+
+impl Ord for TinyStr4 {
+    fn cmp(&self, other: &Self) -> Ordering {
+        self.0.get().to_be().cmp(&other.0.get().to_be())
+    }
+}
+
+impl FromStr for TinyStr4 {
+    type Err = Error;
+
+    #[inline(always)]
+    fn from_str(text: &str) -> Result<Self, Self::Err> {
+        Self::from_bytes(text.as_bytes())
+    }
+}
+
+impl Into<u32> for TinyStr4 {
+    fn into(self) -> u32 {
+        self.0.get().to_le()
+    }
+}
diff --git a/third_party/rust/tinystr/src/tinystr8.rs b/third_party/rust/tinystr/src/tinystr8.rs
new file mode 100644
index 0000000000..450765b1aa
--- /dev/null
+++ b/third_party/rust/tinystr/src/tinystr8.rs
@@ -0,0 +1,313 @@
+use std::cmp::Ordering;
+use std::convert::Into;
+use std::fmt;
+use std::num::NonZeroU64;
+use std::ops::Deref;
+use std::ptr::copy_nonoverlapping;
+use std::str::FromStr;
+
+use crate::Error;
+
+/// A tiny string that is from 1 to 8 non-NUL ASCII characters.
+///
+/// # Examples
+///
+/// ```
+/// use tinystr::TinyStr8;
+///
+/// let s1: TinyStr8 = "Testing".parse()
+///     .expect("Failed to parse.");
+///
+/// assert_eq!(s1, "Testing");
+/// assert!(s1.is_ascii_alphabetic());
+/// ```
+#[derive(Copy, Clone, PartialEq, Eq, Hash)]
+pub struct TinyStr8(NonZeroU64);
+
+impl TinyStr8 {
+    /// Creates a TinyStr8 from a byte slice.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr8;
+    ///
+    /// let s1 = TinyStr8::from_bytes("Testing".as_bytes())
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1, "Testing");
+    /// ```
+    #[inline(always)]
+    pub fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
+        let len = bytes.len();
+        if len < 1 || len > 8 {
+            return Err(Error::InvalidSize);
+        }
+        unsafe {
+            let mut word: u64 = 0;
+            copy_nonoverlapping(bytes.as_ptr(), &mut word as *mut u64 as *mut u8, len);
+            let mask = 0x80808080_80808080u64 >> (8 * (8 - len));
+            // TODO: could do this with #cfg(target_endian), but this is clearer and
+            // more confidence-inspiring.
+            let mask = u64::from_le(mask);
+            if (word & mask) != 0 {
+                return Err(Error::NonAscii);
+            }
+            if ((mask - word) & mask) != 0 {
+                return Err(Error::InvalidNull);
+            }
+            Ok(Self(NonZeroU64::new_unchecked(word)))
+        }
+    }
+
+    /// An unsafe constructor intended for cases where the consumer
+    /// guarantees that the input is a little endian integer which
+    /// is a correct representation of a `TinyStr8` string.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr8;
+    ///
+    /// let s1: TinyStr8 = "Testing".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// let num: u64 = s1.into();
+    ///
+    /// let s2 = unsafe { TinyStr8::new_unchecked(num) };
+    ///
+    /// assert_eq!(s1, s2);
+    /// assert_eq!(s2.as_str(), "Testing");
+    /// ```
+    #[inline(always)]
+    pub const unsafe fn new_unchecked(text: u64) -> Self {
+        Self(NonZeroU64::new_unchecked(u64::from_le(text)))
+    }
+
+    /// Extracts a string slice containing the entire `TinyStr8`.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr8;
+    ///
+    /// let s1: TinyStr8 = "Testing".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1.as_str(), "Testing");
+    /// ```
+    #[inline(always)]
+    pub fn as_str(&self) -> &str {
+        self.deref()
+    }
+
+    /// Checks if the value is composed of ASCII alphabetic characters:
+    ///
+    ///  * U+0041 'A' ..= U+005A 'Z', or
+    ///  * U+0061 'a' ..= U+007A 'z'.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr8;
+    ///
+    /// let s1: TinyStr8 = "Testing".parse()
+    ///     .expect("Failed to parse.");
+    /// let s2: TinyStr8 = "Te3ting".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert!(s1.is_ascii_alphabetic());
+    /// assert!(!s2.is_ascii_alphabetic());
+    /// ```
+    pub fn is_ascii_alphabetic(self) -> bool {
+        let word = self.0.get();
+        let mask = (word + 0x7f7f7f7f_7f7f7f7f) & 0x80808080_80808080;
+        let lower = word | 0x20202020_20202020;
+        let alpha = !(lower + 0x1f1f1f1f_1f1f1f1f) | (lower + 0x05050505_05050505);
+        (alpha & mask) == 0
+    }
+
+    /// Checks if the value is composed of ASCII alphanumeric characters:
+    ///
+    ///  * U+0041 'A' ..= U+005A 'Z', or
+    ///  * U+0061 'a' ..= U+007A 'z', or
+    ///  * U+0030 '0' ..= U+0039 '9'.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr8;
+    ///
+    /// let s1: TinyStr8 = "A15bing".parse()
+    ///     .expect("Failed to parse.");
+    /// let s2: TinyStr8 = "[3@wing".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert!(s1.is_ascii_alphanumeric());
+    /// assert!(!s2.is_ascii_alphanumeric());
+    /// ```
+    pub fn is_ascii_alphanumeric(self) -> bool {
+        let word = self.0.get();
+        let mask = (word + 0x7f7f7f7f_7f7f7f7f) & 0x80808080_80808080;
+        let numeric = !(word + 0x50505050_50505050) | (word + 0x46464646_46464646);
+        let lower = word | 0x20202020_20202020;
+        let alpha = !(lower + 0x1f1f1f1f_1f1f1f1f) | (lower + 0x05050505_05050505);
+        (alpha & numeric & mask) == 0
+    }
+
+    /// Checks if the value is composed of ASCII decimal digits:
+    ///
+    ///  * U+0030 '0' ..= U+0039 '9'.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr8;
+    ///
+    /// let s1: TinyStr8 = "3121029".parse()
+    ///     .expect("Failed to parse.");
+    /// let s2: TinyStr8 = "3d212d".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert!(s1.is_ascii_numeric());
+    /// assert!(!s2.is_ascii_numeric());
+    /// ```
+    pub fn is_ascii_numeric(self) -> bool {
+        let word = self.0.get();
+        let mask = (word + 0x7f7f7f7f_7f7f7f7f) & 0x80808080_80808080;
+        let numeric = !(word + 0x50505050_50505050) | (word + 0x46464646_46464646);
+        (numeric & mask) == 0
+    }
+
+    /// Converts this type to its ASCII lower case equivalent in-place.
+    ///
+    /// ASCII letters 'A' to 'Z' are mapped to 'a' to 'z', other characters are unchanged.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr8;
+    ///
+    /// let s1: TinyStr8 = "TeS3ing".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1.to_ascii_lowercase(), "tes3ing");
+    /// ```
+    pub fn to_ascii_lowercase(self) -> Self {
+        let word = self.0.get();
+        let result = word
+            | (((word + 0x3f3f3f3f_3f3f3f3f)
+                & !(word + 0x25252525_25252525)
+                & 0x80808080_80808080)
+                >> 2);
+        unsafe { Self(NonZeroU64::new_unchecked(result)) }
+    }
+
+    /// Converts this type to its ASCII title case equivalent in-place.
+    ///
+    /// First character, if is an ASCII letter 'a' to 'z' is mapped to 'A' to 'Z',
+    /// other characters are unchanged.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr8;
+    ///
+    /// let s1: TinyStr8 = "testing".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1.to_ascii_titlecase(), "Testing");
+    /// ```
+    pub fn to_ascii_titlecase(self) -> Self {
+        let word = self.0.get().to_le();
+        let mask =
+            ((word + 0x3f3f3f3f_3f3f3f1f) & !(word + 0x25252525_25252505) & 0x80808080_80808080)
+                >> 2;
+        let result = (word | mask) & !(0x20 & mask);
+        unsafe { Self(NonZeroU64::new_unchecked(u64::from_le(result))) }
+    }
+
+    /// Converts this type to its ASCII upper case equivalent in-place.
+    ///
+    /// ASCII letters 'a' to 'z' are mapped to 'A' to 'Z', other characters are unchanged.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use tinystr::TinyStr8;
+    ///
+    /// let s1: TinyStr8 = "Tes3ing".parse()
+    ///     .expect("Failed to parse.");
+    ///
+    /// assert_eq!(s1.to_ascii_uppercase(), "TES3ING");
+    /// ```
+    pub fn to_ascii_uppercase(self) -> Self {
+        let word = self.0.get();
+        let result = word
+            & !(((word + 0x1f1f1f1f_1f1f1f1f)
+                & !(word + 0x05050505_05050505)
+                & 0x80808080_80808080)
+                >> 2);
+        unsafe { Self(NonZeroU64::new_unchecked(result)) }
+    }
+}
+
+impl fmt::Display for TinyStr8 {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}", self.deref())
+    }
+}
+
+impl fmt::Debug for TinyStr8 {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{:?}", self.deref())
+    }
+}
+
+impl Deref for TinyStr8 {
+    type Target = str;
+
+    #[inline(always)]
+    fn deref(&self) -> &str {
+        // Again, could use #cfg to hand-roll a big-endian implementation.
+        let word = self.0.get().to_le();
+        let len = (8 - word.leading_zeros() / 8) as usize;
+        unsafe {
+            let slice = core::slice::from_raw_parts(&self.0 as *const _ as *const u8, len);
+            std::str::from_utf8_unchecked(slice)
+        }
+    }
+}
+
+impl PartialEq<&str> for TinyStr8 {
+    fn eq(&self, other: &&str) -> bool {
+        self.deref() == *other
+    }
+}
+
+impl PartialOrd for TinyStr8 {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        Some(self.cmp(other))
+    }
+}
+
+impl Ord for TinyStr8 {
+    fn cmp(&self, other: &Self) -> Ordering {
+        self.0.get().to_be().cmp(&other.0.get().to_be())
+    }
+}
+
+impl FromStr for TinyStr8 {
+    type Err = Error;
+
+    #[inline(always)]
+    fn from_str(text: &str) -> Result<Self, Self::Err> {
+        TinyStr8::from_bytes(text.as_bytes())
+    }
+}
+
+impl Into<u64> for TinyStr8 {
+    fn into(self) -> u64 {
+        self.0.get().to_le()
+    }
+}
diff --git a/third_party/rust/tinystr/tests/main.rs b/third_party/rust/tinystr/tests/main.rs
new file mode 100644
index 0000000000..a3fb78be65
--- /dev/null
+++ b/third_party/rust/tinystr/tests/main.rs
@@ -0,0 +1,482 @@
+use std::fmt::Write;
+use std::ops::Deref;
+use tinystr::{Error, TinyStr16, TinyStr4, TinyStr8};
+
+#[test]
+fn tiny4_basic() {
+    let s: TinyStr4 = "abc".parse().unwrap();
+    assert_eq!(s.deref(), "abc");
+}
+
+#[test]
+fn tiny4_from_bytes() {
+    let s = TinyStr4::from_bytes("abc".as_bytes()).unwrap();
+    assert_eq!(s.deref(), "abc");
+
+    assert_eq!(
+        TinyStr4::from_bytes(&[0, 159, 146, 150]),
+        Err(Error::NonAscii)
+    );
+    assert_eq!(TinyStr4::from_bytes(&[]), Err(Error::InvalidSize));
+    assert_eq!(TinyStr4::from_bytes(&[0]), Err(Error::InvalidNull));
+}
+
+#[test]
+fn tiny4_size() {
+    assert_eq!("".parse::<TinyStr4>(), Err(Error::InvalidSize));
+    assert!("1".parse::<TinyStr4>().is_ok());
+    assert!("12".parse::<TinyStr4>().is_ok());
+    assert!("123".parse::<TinyStr4>().is_ok());
+    assert!("1234".parse::<TinyStr4>().is_ok());
+    assert_eq!("12345".parse::<TinyStr4>(), Err(Error::InvalidSize));
+    assert_eq!("123456789".parse::<TinyStr4>(), Err(Error::InvalidSize));
+}
+
+#[test]
+fn tiny4_null() {
+    assert_eq!("a\u{0}b".parse::<TinyStr4>(), Err(Error::InvalidNull));
+}
+
+#[test]
+fn tiny4_new_unchecked() {
+    let reference: TinyStr4 = "en".parse().unwrap();
+    let uval: u32 = reference.into();
+    let s = unsafe { TinyStr4::new_unchecked(uval) };
+    assert_eq!(s, reference);
+    assert_eq!(s, "en");
+}
+
+#[test]
+fn tiny4_nonascii() {
+    assert_eq!("\u{4000}".parse::<TinyStr4>(), Err(Error::NonAscii));
+}
+
+#[test]
+fn tiny4_alpha() {
+    let s: TinyStr4 = "@aZ[".parse().unwrap();
+    assert!(!s.is_ascii_alphabetic());
+    assert!(!s.is_ascii_alphanumeric());
+    assert_eq!(s.to_ascii_uppercase().as_str(), "@AZ[");
+    assert_eq!(s.to_ascii_lowercase().as_str(), "@az[");
+
+    assert!("abYZ".parse::<TinyStr4>().unwrap().is_ascii_alphabetic());
+    assert!("abYZ".parse::<TinyStr4>().unwrap().is_ascii_alphanumeric());
+    assert!("a123".parse::<TinyStr4>().unwrap().is_ascii_alphanumeric());
+    assert!(!"a123".parse::<TinyStr4>().unwrap().is_ascii_alphabetic());
+}
+
+#[test]
+fn tiny4_numeric() {
+    let s: TinyStr4 = "@aZ[".parse().unwrap();
+    assert!(!s.is_ascii_numeric());
+
+    assert!("0123".parse::<TinyStr4>().unwrap().is_ascii_numeric());
+}
+
+#[test]
+fn tiny4_titlecase() {
+    assert_eq!(
+        "abcd"
+            .parse::<TinyStr4>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "Abcd"
+    );
+    assert_eq!(
+        "ABCD"
+            .parse::<TinyStr4>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "Abcd"
+    );
+    assert_eq!(
+        "aBCD"
+            .parse::<TinyStr4>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "Abcd"
+    );
+    assert_eq!(
+        "A123"
+            .parse::<TinyStr4>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "A123"
+    );
+    assert_eq!(
+        "123a"
+            .parse::<TinyStr4>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "123a"
+    );
+}
+
+#[test]
+fn tiny4_ord() {
+    let mut v: Vec<TinyStr4> = vec!["zh".parse().unwrap(), "fr".parse().unwrap()];
+    v.sort();
+
+    assert_eq!(v.get(0).unwrap().as_str(), "fr");
+    assert_eq!(v.get(1).unwrap().as_str(), "zh");
+}
+
+#[test]
+fn tiny4_eq() {
+    let s1: TinyStr4 = "en".parse().unwrap();
+    let s2: TinyStr4 = "fr".parse().unwrap();
+    let s3: TinyStr4 = "en".parse().unwrap();
+
+    assert_eq!(s1, s3);
+    assert_ne!(s1, s2);
+}
+
+#[test]
+fn tiny4_display() {
+    let s: TinyStr4 = "abcd".parse().unwrap();
+    let mut result = String::new();
+    write!(result, "{}", s).unwrap();
+    assert_eq!(result, "abcd");
+    assert_eq!(format!("{}", s), "abcd");
+}
+
+#[test]
+fn tiny4_debug() {
+    let s: TinyStr4 = "abcd".parse().unwrap();
+    assert_eq!(format!("{:#?}", s), "\"abcd\"");
+}
+
+#[test]
+fn tiny8_basic() {
+    let s: TinyStr8 = "abcde".parse().unwrap();
+    assert_eq!(s.deref(), "abcde");
+}
+
+#[test]
+fn tiny8_from_bytes() {
+    let s = TinyStr8::from_bytes("abcde".as_bytes()).unwrap();
+    assert_eq!(s.deref(), "abcde");
+
+    assert_eq!(
+        TinyStr8::from_bytes(&[0, 159, 146, 150]),
+        Err(Error::NonAscii)
+    );
+    assert_eq!(TinyStr8::from_bytes(&[]), Err(Error::InvalidSize));
+    assert_eq!(TinyStr8::from_bytes(&[0]), Err(Error::InvalidNull));
+}
+
+#[test]
+fn tiny8_size() {
+    assert_eq!("".parse::<TinyStr8>(), Err(Error::InvalidSize));
+    assert!("1".parse::<TinyStr8>().is_ok());
+    assert!("12".parse::<TinyStr8>().is_ok());
+    assert!("123".parse::<TinyStr8>().is_ok());
+    assert!("1234".parse::<TinyStr8>().is_ok());
+    assert!("12345".parse::<TinyStr8>().is_ok());
+    assert!("123456".parse::<TinyStr8>().is_ok());
+    assert!("1234567".parse::<TinyStr8>().is_ok());
+    assert!("12345678".parse::<TinyStr8>().is_ok());
+    assert_eq!("123456789".parse::<TinyStr8>(), Err(Error::InvalidSize));
+}
+
+#[test]
+fn tiny8_null() {
+    assert_eq!("a\u{0}b".parse::<TinyStr8>(), Err(Error::InvalidNull));
+}
+
+#[test]
+fn tiny8_new_unchecked() {
+    let reference: TinyStr8 = "Windows".parse().unwrap();
+    let uval: u64 = reference.into();
+    let s = unsafe { TinyStr8::new_unchecked(uval) };
+    assert_eq!(s, reference);
+    assert_eq!(s, "Windows");
+}
+
+#[test]
+fn tiny8_nonascii() {
+    assert_eq!("\u{4000}".parse::<TinyStr8>(), Err(Error::NonAscii));
+}
+
+#[test]
+fn tiny8_alpha() {
+    let s: TinyStr8 = "@abcXYZ[".parse().unwrap();
+    assert!(!s.is_ascii_alphabetic());
+    assert!(!s.is_ascii_alphanumeric());
+    assert_eq!(s.to_ascii_uppercase().as_str(), "@ABCXYZ[");
+    assert_eq!(s.to_ascii_lowercase().as_str(), "@abcxyz[");
+
+    assert!("abcXYZ".parse::<TinyStr8>().unwrap().is_ascii_alphabetic());
+    assert!("abcXYZ"
+        .parse::<TinyStr8>()
+        .unwrap()
+        .is_ascii_alphanumeric());
+    assert!(!"abc123".parse::<TinyStr8>().unwrap().is_ascii_alphabetic());
+    assert!("abc123"
+        .parse::<TinyStr8>()
+        .unwrap()
+        .is_ascii_alphanumeric());
+}
+
+#[test]
+fn tiny8_numeric() {
+    let s: TinyStr8 = "@abcXYZ[".parse().unwrap();
+    assert!(!s.is_ascii_numeric());
+
+    assert!("01234567".parse::<TinyStr8>().unwrap().is_ascii_numeric());
+}
+
+#[test]
+fn tiny8_titlecase() {
+    assert_eq!(
+        "abcdabcd"
+            .parse::<TinyStr8>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "Abcdabcd"
+    );
+    assert_eq!(
+        "ABCDABCD"
+            .parse::<TinyStr8>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "Abcdabcd"
+    );
+    assert_eq!(
+        "aBCDaBCD"
+            .parse::<TinyStr8>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "Abcdabcd"
+    );
+    assert_eq!(
+        "A123a123"
+            .parse::<TinyStr8>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "A123a123"
+    );
+    assert_eq!(
+        "123a123A"
+            .parse::<TinyStr8>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "123a123a"
+    );
+}
+
+#[test]
+fn tiny8_ord() {
+    let mut v: Vec<TinyStr8> = vec!["nedis".parse().unwrap(), "macos".parse().unwrap()];
+    v.sort();
+
+    assert_eq!(v.get(0).unwrap().as_str(), "macos");
+    assert_eq!(v.get(1).unwrap().as_str(), "nedis");
+}
+
+#[test]
+fn tiny8_eq() {
+    let s1: TinyStr8 = "windows".parse().unwrap();
+    let s2: TinyStr8 = "mac".parse().unwrap();
+    let s3: TinyStr8 = "windows".parse().unwrap();
+
+    assert_eq!(s1, s3);
+    assert_ne!(s1, s2);
+}
+
+#[test]
+fn tiny8_display() {
+    let s: TinyStr8 = "abcdef".parse().unwrap();
+    let mut result = String::new();
+    write!(result, "{}", s).unwrap();
+    assert_eq!(result, "abcdef");
+    assert_eq!(format!("{}", s), "abcdef");
+}
+
+#[test]
+fn tiny8_debug() {
+    let s: TinyStr8 = "abcdef".parse().unwrap();
+    assert_eq!(format!("{:#?}", s), "\"abcdef\"");
+}
+
+#[test]
+fn tiny16_from_bytes() {
+    let s = TinyStr16::from_bytes("abcdefghijk".as_bytes()).unwrap();
+    assert_eq!(s.deref(), "abcdefghijk");
+
+    assert_eq!(
+        TinyStr16::from_bytes(&[0, 159, 146, 150]),
+        Err(Error::NonAscii)
+    );
+    assert_eq!(TinyStr16::from_bytes(&[]), Err(Error::InvalidSize));
+    assert_eq!(TinyStr16::from_bytes(&[0]), Err(Error::InvalidNull));
+}
+
+#[test]
+fn tiny16_size() {
+    assert_eq!("".parse::<TinyStr16>(), Err(Error::InvalidSize));
+    assert!("1".parse::<TinyStr16>().is_ok());
+    assert!("12".parse::<TinyStr16>().is_ok());
+    assert!("123".parse::<TinyStr16>().is_ok());
+    assert!("1234".parse::<TinyStr16>().is_ok());
+    assert!("12345".parse::<TinyStr16>().is_ok());
+    assert!("123456".parse::<TinyStr16>().is_ok());
+    assert!("1234567".parse::<TinyStr16>().is_ok());
+    assert!("12345678".parse::<TinyStr16>().is_ok());
+    assert!("123456781".parse::<TinyStr16>().is_ok());
+    assert!("1234567812".parse::<TinyStr16>().is_ok());
+    assert!("12345678123".parse::<TinyStr16>().is_ok());
+    assert!("123456781234".parse::<TinyStr16>().is_ok());
+    assert!("1234567812345".parse::<TinyStr16>().is_ok());
+    assert!("12345678123456".parse::<TinyStr16>().is_ok());
+    assert!("123456781234567".parse::<TinyStr16>().is_ok());
+    assert!("1234567812345678".parse::<TinyStr16>().is_ok());
+    assert_eq!(
+        "12345678123456789".parse::<TinyStr16>(),
+        Err(Error::InvalidSize)
+    );
+}
+
+#[test]
+fn tiny16_null() {
+    assert_eq!("a\u{0}b".parse::<TinyStr16>(), Err(Error::InvalidNull));
+}
+
+#[test]
+fn tiny16_new_unchecked() {
+    let reference: TinyStr16 = "WindowsCE/ME/NT".parse().unwrap();
+    let uval: u128 = reference.into();
+    let s = unsafe { TinyStr16::new_unchecked(uval) };
+    assert_eq!(s, reference);
+    assert_eq!(s, "WindowsCE/ME/NT");
+}
+
+#[test]
+fn tiny16_nonascii() {
+    assert_eq!("\u{4000}".parse::<TinyStr16>(), Err(Error::NonAscii));
+}
+
+#[test]
+fn tiny16_alpha() {
+    let s: TinyStr16 = "@abcdefgTUVWXYZ[".parse().unwrap();
+    assert!(!s.is_ascii_alphabetic());
+    assert!(!s.is_ascii_alphanumeric());
+    assert_eq!(s.to_ascii_uppercase().as_str(), "@ABCDEFGTUVWXYZ[");
+    assert_eq!(s.to_ascii_lowercase().as_str(), "@abcdefgtuvwxyz[");
+
+    assert!("abcdefgTUVWXYZ"
+        .parse::<TinyStr16>()
+        .unwrap()
+        .is_ascii_alphabetic());
+    assert!("abcdefgTUVWXYZ"
+        .parse::<TinyStr16>()
+        .unwrap()
+        .is_ascii_alphanumeric());
+    assert!(!"abcdefg0123456"
+        .parse::<TinyStr16>()
+        .unwrap()
+        .is_ascii_alphabetic());
+    assert!("abcdefgTUVWXYZ"
+        .parse::<TinyStr16>()
+        .unwrap()
+        .is_ascii_alphanumeric());
+}
+
+#[test]
+fn tiny16_numeric() {
+    let s: TinyStr16 = "@abcdefgTUVWXYZ[".parse().unwrap();
+    assert!(!s.is_ascii_numeric());
+
+    assert!("0123456789"
+        .parse::<TinyStr16>()
+        .unwrap()
+        .is_ascii_numeric());
+}
+
+#[test]
+fn tiny16_titlecase() {
+    assert_eq!(
+        "abcdabcdabcdabcd"
+            .parse::<TinyStr16>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "Abcdabcdabcdabcd"
+    );
+    assert_eq!(
+        "ABCDABCDABCDABCD"
+            .parse::<TinyStr16>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "Abcdabcdabcdabcd"
+    );
+    assert_eq!(
+        "aBCDaBCDaBCDaBCD"
+            .parse::<TinyStr16>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "Abcdabcdabcdabcd"
+    );
+    assert_eq!(
+        "A123a123A123a123"
+            .parse::<TinyStr16>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "A123a123a123a123"
+    );
+    assert_eq!(
+        "123a123A123a123A"
+            .parse::<TinyStr16>()
+            .unwrap()
+            .to_ascii_titlecase()
+            .as_str(),
+        "123a123a123a123a"
+    );
+}
+
+#[test]
+fn tiny16_ord() {
+    let mut v: Vec<TinyStr16> = vec!["nedis_xxxx".parse().unwrap(), "macos_xxxx".parse().unwrap()];
+    v.sort();
+
+    assert_eq!(v.get(0).unwrap().as_str(), "macos_xxxx");
+    assert_eq!(v.get(1).unwrap().as_str(), "nedis_xxxx");
+}
+
+#[test]
+fn tiny16_eq() {
+    let s1: TinyStr16 = "windows98SE".parse().unwrap();
+    let s2: TinyStr16 = "mac".parse().unwrap();
+    let s3: TinyStr16 = "windows98SE".parse().unwrap();
+
+    assert_eq!(s1, s3);
+    assert_ne!(s1, s2);
+}
+
+#[test]
+fn tiny16_display() {
+    let s: TinyStr16 = "abcdefghijkl".parse().unwrap();
+    let mut result = String::new();
+    write!(result, "{}", s).unwrap();
+    assert_eq!(result, "abcdefghijkl");
+    assert_eq!(format!("{}", s), "abcdefghijkl");
+}
+
+#[test]
+fn tiny16_debug() {
+    let s: TinyStr16 = "abcdefghijkl".parse().unwrap();
+    assert_eq!(format!("{:#?}", s), "\"abcdefghijkl\"");
+}