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Vendor dependencies for 0.3.0 release

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Robert Garrett
2025-09-27 10:29:08 -05:00
parent 0c8d39d483
commit 82ab7f317b
26803 changed files with 16134934 additions and 0 deletions
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{"files":{"Cargo.lock":"df5cd34167ff412aa1ed588412c50652350fa90f512bd3ed5bd502a695b83daf","Cargo.toml":"37ede0a9a8670b1258a1ac84979396cedc79fa2a2bd5d012f56692493324e9cd","README.md":"9d88bef3ed0d04c97af51661e586e90386fc57c64314e43798d40b402762757d","license-apache-2.0":"c16f8dcf1a368b83be78d826ea23de4079fe1b4469a0ab9ee20563f37ff3d44b","license-mit":"c2cfccb812fe482101a8f04597dfc5a9991a6b2748266c47ac91b6a5aae15383","readme.md":"9d88bef3ed0d04c97af51661e586e90386fc57c64314e43798d40b402762757d","src/bindings.rs":"2cf1f4aa078dfa35ab15e4f6985ccafe2815eb9e2e7d4de68ef91043bc2a2c7d","src/bstr.rs":"c15d999c75aaa7c59d3fd547b4e6a8709e6416812c6f7d92587fa1c0a055d288","src/decode.rs":"791adbab76560d6bcdaf530fa8e81d828f27102f2821b1b37b8913a8d82e7913","src/hstring.rs":"9acd40d74f197e85bfb36adc0c541ad5bb9062c63dc92709d20071d678e848f1","src/hstring_builder.rs":"30065d10c756dbb929c99f3c9d34180d9859e2aea553022a2c0c6c510ada626d","src/hstring_header.rs":"4efd8626e11a7b220898a9616396e4746d66083dd226846ac6bfe30be75c75e9","src/lib.rs":"9b4c7e1380c335d8dc8b84662dfefe960ddbc8c5bafbf5e532425451c66ce88b","src/literals.rs":"eed27b9c506f073b85cccf738e115c80b3b20d3fae35d67efe2c9e5d62642573","src/pcstr.rs":"463e7297aa16d7bb8d6df44c8e1588dbd9996a563144d9b4dafef5ebf294773d","src/pcwstr.rs":"2e213c8da0b2481620980fc438da576aa47df09813405239bd595e1f769b53d6","src/pstr.rs":"1516a072f24692a5bb27d025bd97cd338bc5a104305f7b8418acd6f943a5941b","src/pwstr.rs":"c1e9cd11d41e1875ffa15fa4e29805e6f99aca99a5126aacbe7f169e8b68d790","src/ref_count.rs":"e1617f090d56948719730c81e34449c3d36f288b86a74182719a291c340f65d6","windows-strings.natvis":"e1461f43c6789279ca04cc34e0d614f26162265c862e9c111d251efb843a3798"},"package":"7218c655a553b0bed4426cf54b20d7ba363ef543b52d515b3e48d7fd55318dda"}

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vendor/windows-strings/Cargo.lock generated vendored Normal file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
[[package]]
name = "windows-link"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "45e46c0661abb7180e7b9c281db115305d49ca1709ab8242adf09666d2173c65"
[[package]]
name = "windows-strings"
version = "0.5.0"
dependencies = [
"windows-link",
]

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vendor/windows-strings/Cargo.toml vendored Normal file
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# 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 = "1.82"
name = "windows-strings"
version = "0.5.0"
build = false
autolib = false
autobins = false
autoexamples = false
autotests = false
autobenches = false
description = "Windows string types"
readme = "README.md"
categories = ["os::windows-apis"]
license = "MIT OR Apache-2.0"
repository = "https://github.com/microsoft/windows-rs"
[package.metadata.docs.rs]
default-target = "x86_64-pc-windows-msvc"
targets = []
[features]
default = ["std"]
std = []
[lib]
name = "windows_strings"
path = "src/lib.rs"
[dependencies.windows-link]
version = "0.2.0"
default-features = false
[lints.rust]
missing_unsafe_on_extern = "warn"
[lints.rust.unexpected_cfgs]
level = "warn"
priority = 0
check-cfg = ["cfg(windows_raw_dylib, windows_slim_errors)"]

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## Windows string types
The [windows-strings](https://crates.io/crates/windows-strings) crate provides common Windows string types used by various Windows APIs.
* [Getting started](https://kennykerr.ca/rust-getting-started/)
* [Samples](https://github.com/microsoft/windows-rs/tree/master/crates/samples)
* [Releases](https://github.com/microsoft/windows-rs/releases)
Start by adding the following to your Cargo.toml file:
```toml
[dependencies.windows-strings]
version = "0.5"
```
Use the Windows string types as needed:
```rust
use windows_strings::*;
const A: PCSTR = s!("ansi");
const W: PCWSTR = w!("wide");
fn main() {
let b = BSTR::from("bstr");
let h = HSTRING::from("hstring");
assert_eq!(b, "bstr");
assert_eq!(h, "hstring");
assert_eq!(unsafe { A.to_string().unwrap() }, "ansi");
assert_eq!(unsafe { W.to_string().unwrap() }, "wide");
}
```

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vendor/windows-strings/license-apache-2.0 vendored Normal file
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Apache License
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MIT License
Copyright (c) Microsoft Corporation.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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SOFTWARE

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## Windows string types
The [windows-strings](https://crates.io/crates/windows-strings) crate provides common Windows string types used by various Windows APIs.
* [Getting started](https://kennykerr.ca/rust-getting-started/)
* [Samples](https://github.com/microsoft/windows-rs/tree/master/crates/samples)
* [Releases](https://github.com/microsoft/windows-rs/releases)
Start by adding the following to your Cargo.toml file:
```toml
[dependencies.windows-strings]
version = "0.5"
```
Use the Windows string types as needed:
```rust
use windows_strings::*;
const A: PCSTR = s!("ansi");
const W: PCWSTR = w!("wide");
fn main() {
let b = BSTR::from("bstr");
let h = HSTRING::from("hstring");
assert_eq!(b, "bstr");
assert_eq!(h, "hstring");
assert_eq!(unsafe { A.to_string().unwrap() }, "ansi");
assert_eq!(unsafe { W.to_string().unwrap() }, "wide");
}
```

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#![allow(
non_snake_case,
non_upper_case_globals,
non_camel_case_types,
dead_code,
clippy::all
)]
windows_link::link!("kernel32.dll" "system" fn GetProcessHeap() -> HANDLE);
windows_link::link!("kernel32.dll" "system" fn HeapAlloc(hheap : HANDLE, dwflags : HEAP_FLAGS, dwbytes : usize) -> *mut core::ffi::c_void);
windows_link::link!("kernel32.dll" "system" fn HeapFree(hheap : HANDLE, dwflags : HEAP_FLAGS, lpmem : *const core::ffi::c_void) -> BOOL);
windows_link::link!("oleaut32.dll" "system" fn SysAllocStringLen(strin : PCWSTR, ui : u32) -> BSTR);
windows_link::link!("oleaut32.dll" "system" fn SysFreeString(bstrstring : BSTR));
windows_link::link!("oleaut32.dll" "system" fn SysStringLen(pbstr : BSTR) -> u32);
pub type BOOL = i32;
pub type BSTR = *const u16;
pub type HANDLE = *mut core::ffi::c_void;
pub type HEAP_FLAGS = u32;
pub type PCWSTR = *const u16;

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use super::*;
use core::ops::Deref;
/// A BSTR string ([BSTR](https://learn.microsoft.com/en-us/previous-versions/windows/desktop/automat/string-manipulation-functions))
/// is a length-prefixed wide string.
#[repr(transparent)]
pub struct BSTR(*const u16);
impl BSTR {
/// Create an empty `BSTR`.
///
/// This function does not allocate memory.
pub const fn new() -> Self {
Self(core::ptr::null_mut())
}
/// Create a `BSTR` from a slice of 16 bit characters (wchars).
pub fn from_wide(value: &[u16]) -> Self {
if value.is_empty() {
return Self::new();
}
let result = unsafe {
Self(bindings::SysAllocStringLen(
value.as_ptr(),
value.len().try_into().unwrap(),
))
};
if result.is_empty() {
panic!("allocation failed");
}
result
}
/// # Safety
#[doc(hidden)]
pub unsafe fn from_raw(raw: *const u16) -> Self {
Self(raw)
}
/// # Safety
#[doc(hidden)]
pub fn into_raw(self) -> *const u16 {
unsafe { core::mem::transmute(self) }
}
}
impl Deref for BSTR {
type Target = [u16];
fn deref(&self) -> &[u16] {
let len = if self.0.is_null() {
0
} else {
unsafe { bindings::SysStringLen(self.0) as usize }
};
if len > 0 {
unsafe { core::slice::from_raw_parts(self.0, len) }
} else {
// This ensures that if `as_ptr` is called on the slice that the resulting pointer
// will still refer to a null-terminated string.
const EMPTY: [u16; 1] = [0];
&EMPTY[..0]
}
}
}
impl Clone for BSTR {
fn clone(&self) -> Self {
Self::from_wide(self)
}
}
impl From<&str> for BSTR {
fn from(value: &str) -> Self {
let value: alloc::vec::Vec<u16> = value.encode_utf16().collect();
Self::from_wide(&value)
}
}
impl From<String> for BSTR {
fn from(value: String) -> Self {
value.as_str().into()
}
}
impl From<&String> for BSTR {
fn from(value: &String) -> Self {
value.as_str().into()
}
}
impl TryFrom<&BSTR> for String {
type Error = alloc::string::FromUtf16Error;
fn try_from(value: &BSTR) -> core::result::Result<Self, Self::Error> {
Self::from_utf16(value)
}
}
impl TryFrom<BSTR> for String {
type Error = alloc::string::FromUtf16Error;
fn try_from(value: BSTR) -> core::result::Result<Self, Self::Error> {
Self::try_from(&value)
}
}
impl Default for BSTR {
fn default() -> Self {
Self(core::ptr::null_mut())
}
}
impl core::fmt::Display for BSTR {
fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
core::write!(
f,
"{}",
Decode(|| core::char::decode_utf16(self.iter().cloned()))
)
}
}
impl core::fmt::Debug for BSTR {
fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
core::write!(f, "{self}")
}
}
impl PartialEq for BSTR {
fn eq(&self, other: &Self) -> bool {
self.deref() == other.deref()
}
}
impl Eq for BSTR {}
impl PartialEq<BSTR> for &str {
fn eq(&self, other: &BSTR) -> bool {
other == self
}
}
impl PartialEq<BSTR> for String {
fn eq(&self, other: &BSTR) -> bool {
other == self
}
}
impl<T: AsRef<str> + ?Sized> PartialEq<T> for BSTR {
fn eq(&self, other: &T) -> bool {
self.iter().copied().eq(other.as_ref().encode_utf16())
}
}
impl Drop for BSTR {
fn drop(&mut self) {
if !self.0.is_null() {
unsafe { bindings::SysFreeString(self.0) }
}
}
}

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/// An internal helper for decoding an iterator of chars and displaying them
pub struct Decode<F>(pub F);
impl<F, R, E> core::fmt::Display for Decode<F>
where
F: Clone + FnOnce() -> R,
R: IntoIterator<Item = core::result::Result<char, E>>,
{
fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
use core::fmt::Write;
let iter = self.0.clone();
for c in iter().into_iter() {
f.write_char(c.unwrap_or(core::char::REPLACEMENT_CHARACTER))?
}
Ok(())
}
}
/// Mirror of `std::char::decode_utf16` for utf-8.
pub fn decode_utf8(
mut buffer: &[u8],
) -> impl Iterator<Item = core::result::Result<char, core::str::Utf8Error>> + '_ {
let mut current = "".chars();
let mut previous_error = None;
core::iter::from_fn(move || {
loop {
match (current.next(), previous_error) {
(Some(c), _) => return Some(Ok(c)),
// Return the previous error
(None, Some(e)) => {
previous_error = None;
return Some(Err(e));
}
// We're completely done
(None, None) if buffer.is_empty() => return None,
(None, None) => {
match core::str::from_utf8(buffer) {
Ok(s) => {
current = s.chars();
buffer = &[];
}
Err(e) => {
let (valid, rest) = buffer.split_at(e.valid_up_to());
// Skip the invalid sequence and stop completely if we ended early
let invalid_sequence_length = e.error_len()?;
buffer = &rest[invalid_sequence_length..];
// Set the current iterator to the valid section and indicate previous error
// SAFETY: `valid` is known to be valid utf-8 from error
current = unsafe { core::str::from_utf8_unchecked(valid) }.chars();
previous_error = Some(e);
}
}
}
}
}
})
}

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use super::*;
use core::ops::Deref;
/// An ([HSTRING](https://docs.microsoft.com/en-us/windows/win32/winrt/hstring))
/// is a reference-counted and immutable UTF-16 string type.
#[repr(transparent)]
pub struct HSTRING(pub(crate) *mut HStringHeader);
impl HSTRING {
/// Create an empty `HSTRING`.
///
/// This function does not allocate memory.
pub const fn new() -> Self {
Self(core::ptr::null_mut())
}
/// Create a `HSTRING` from a slice of 16 bit characters (wchars).
pub fn from_wide(value: &[u16]) -> Self {
unsafe { Self::from_wide_iter(value.iter().copied(), value.len()) }
}
/// Get the contents of this `HSTRING` as a String lossily.
pub fn to_string_lossy(&self) -> String {
String::from_utf16_lossy(self)
}
/// Get the contents of this `HSTRING` as a OsString.
#[cfg(feature = "std")]
pub fn to_os_string(&self) -> std::ffi::OsString {
std::os::windows::ffi::OsStringExt::from_wide(self)
}
/// # Safety
/// len must not be less than the number of items in the iterator.
unsafe fn from_wide_iter<I: Iterator<Item = u16>>(iter: I, len: usize) -> Self {
if len == 0 {
return Self::new();
}
let ptr = HStringHeader::alloc(len.try_into().unwrap());
// Place each utf-16 character into the buffer and
// increase len as we go along.
for (index, wide) in iter.enumerate() {
debug_assert!(index < len);
unsafe {
(*ptr).data.add(index).write(wide);
(*ptr).len = index as u32 + 1;
}
}
unsafe {
// Write a 0 byte to the end of the buffer.
(*ptr).data.offset((*ptr).len as isize).write(0);
}
Self(ptr)
}
fn as_header(&self) -> Option<&HStringHeader> {
unsafe { self.0.as_ref() }
}
}
impl Deref for HSTRING {
type Target = [u16];
fn deref(&self) -> &[u16] {
if let Some(header) = self.as_header() {
unsafe { core::slice::from_raw_parts(header.data, header.len as usize) }
} else {
// This ensures that if `as_ptr` is called on the slice that the resulting pointer
// will still refer to a null-terminated string.
const EMPTY: [u16; 1] = [0];
&EMPTY[..0]
}
}
}
impl Default for HSTRING {
fn default() -> Self {
Self::new()
}
}
impl Clone for HSTRING {
fn clone(&self) -> Self {
if let Some(header) = self.as_header() {
Self(header.duplicate())
} else {
Self::new()
}
}
}
impl Drop for HSTRING {
fn drop(&mut self) {
if let Some(header) = self.as_header() {
// HSTRING_REFERENCE_FLAG indicates a string backed by static or stack memory that is
// thus not reference-counted and does not need to be freed.
unsafe {
if header.flags & HSTRING_REFERENCE_FLAG == 0 && header.count.release() == 0 {
HStringHeader::free(self.0);
}
}
}
}
}
unsafe impl Send for HSTRING {}
unsafe impl Sync for HSTRING {}
impl core::fmt::Display for HSTRING {
fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
write!(
f,
"{}",
Decode(|| core::char::decode_utf16(self.iter().cloned()))
)
}
}
impl core::fmt::Debug for HSTRING {
fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
write!(f, "\"{self}\"")
}
}
impl From<&str> for HSTRING {
fn from(value: &str) -> Self {
unsafe { Self::from_wide_iter(value.encode_utf16(), value.len()) }
}
}
impl From<String> for HSTRING {
fn from(value: String) -> Self {
value.as_str().into()
}
}
impl From<&String> for HSTRING {
fn from(value: &String) -> Self {
value.as_str().into()
}
}
#[cfg(feature = "std")]
impl From<&std::path::Path> for HSTRING {
fn from(value: &std::path::Path) -> Self {
value.as_os_str().into()
}
}
#[cfg(feature = "std")]
impl From<&std::ffi::OsStr> for HSTRING {
fn from(value: &std::ffi::OsStr) -> Self {
unsafe {
Self::from_wide_iter(
std::os::windows::ffi::OsStrExt::encode_wide(value),
value.len(),
)
}
}
}
#[cfg(feature = "std")]
impl From<std::ffi::OsString> for HSTRING {
fn from(value: std::ffi::OsString) -> Self {
value.as_os_str().into()
}
}
#[cfg(feature = "std")]
impl From<&std::ffi::OsString> for HSTRING {
fn from(value: &std::ffi::OsString) -> Self {
value.as_os_str().into()
}
}
impl Eq for HSTRING {}
impl Ord for HSTRING {
fn cmp(&self, other: &Self) -> core::cmp::Ordering {
self.deref().cmp(other)
}
}
impl core::hash::Hash for HSTRING {
fn hash<H: core::hash::Hasher>(&self, hasher: &mut H) {
self.deref().hash(hasher)
}
}
impl PartialOrd for HSTRING {
fn partial_cmp(&self, other: &Self) -> Option<core::cmp::Ordering> {
Some(self.cmp(other))
}
}
impl PartialEq for HSTRING {
fn eq(&self, other: &Self) -> bool {
self.deref() == other.deref()
}
}
impl PartialEq<String> for HSTRING {
fn eq(&self, other: &String) -> bool {
*self == **other
}
}
impl PartialEq<String> for &HSTRING {
fn eq(&self, other: &String) -> bool {
**self == **other
}
}
impl PartialEq<&String> for HSTRING {
fn eq(&self, other: &&String) -> bool {
*self == ***other
}
}
impl PartialEq<str> for HSTRING {
fn eq(&self, other: &str) -> bool {
self.iter().copied().eq(other.encode_utf16())
}
}
impl PartialEq<str> for &HSTRING {
fn eq(&self, other: &str) -> bool {
**self == *other
}
}
impl PartialEq<&str> for HSTRING {
fn eq(&self, other: &&str) -> bool {
*self == **other
}
}
impl PartialEq<HSTRING> for str {
fn eq(&self, other: &HSTRING) -> bool {
*other == *self
}
}
impl PartialEq<HSTRING> for &str {
fn eq(&self, other: &HSTRING) -> bool {
*other == **self
}
}
impl PartialEq<&HSTRING> for str {
fn eq(&self, other: &&HSTRING) -> bool {
**other == *self
}
}
impl PartialEq<HSTRING> for String {
fn eq(&self, other: &HSTRING) -> bool {
*other == **self
}
}
impl PartialEq<HSTRING> for &String {
fn eq(&self, other: &HSTRING) -> bool {
*other == ***self
}
}
impl PartialEq<&HSTRING> for String {
fn eq(&self, other: &&HSTRING) -> bool {
**other == **self
}
}
#[cfg(feature = "std")]
impl PartialEq<std::ffi::OsString> for HSTRING {
fn eq(&self, other: &std::ffi::OsString) -> bool {
*self == **other
}
}
#[cfg(feature = "std")]
impl PartialEq<std::ffi::OsString> for &HSTRING {
fn eq(&self, other: &std::ffi::OsString) -> bool {
**self == **other
}
}
#[cfg(feature = "std")]
impl PartialEq<&std::ffi::OsString> for HSTRING {
fn eq(&self, other: &&std::ffi::OsString) -> bool {
*self == ***other
}
}
#[cfg(feature = "std")]
impl PartialEq<std::ffi::OsStr> for HSTRING {
fn eq(&self, other: &std::ffi::OsStr) -> bool {
self.iter()
.copied()
.eq(std::os::windows::ffi::OsStrExt::encode_wide(other))
}
}
#[cfg(feature = "std")]
impl PartialEq<std::ffi::OsStr> for &HSTRING {
fn eq(&self, other: &std::ffi::OsStr) -> bool {
**self == *other
}
}
#[cfg(feature = "std")]
impl PartialEq<&std::ffi::OsStr> for HSTRING {
fn eq(&self, other: &&std::ffi::OsStr) -> bool {
*self == **other
}
}
#[cfg(feature = "std")]
impl PartialEq<HSTRING> for std::ffi::OsStr {
fn eq(&self, other: &HSTRING) -> bool {
*other == *self
}
}
#[cfg(feature = "std")]
impl PartialEq<HSTRING> for &std::ffi::OsStr {
fn eq(&self, other: &HSTRING) -> bool {
*other == **self
}
}
#[cfg(feature = "std")]
impl PartialEq<&HSTRING> for std::ffi::OsStr {
fn eq(&self, other: &&HSTRING) -> bool {
**other == *self
}
}
#[cfg(feature = "std")]
impl PartialEq<HSTRING> for std::ffi::OsString {
fn eq(&self, other: &HSTRING) -> bool {
*other == **self
}
}
#[cfg(feature = "std")]
impl PartialEq<HSTRING> for &std::ffi::OsString {
fn eq(&self, other: &HSTRING) -> bool {
*other == ***self
}
}
#[cfg(feature = "std")]
impl PartialEq<&HSTRING> for std::ffi::OsString {
fn eq(&self, other: &&HSTRING) -> bool {
**other == **self
}
}
impl TryFrom<&HSTRING> for String {
type Error = alloc::string::FromUtf16Error;
fn try_from(hstring: &HSTRING) -> core::result::Result<Self, Self::Error> {
Self::from_utf16(hstring)
}
}
impl TryFrom<HSTRING> for String {
type Error = alloc::string::FromUtf16Error;
fn try_from(hstring: HSTRING) -> core::result::Result<Self, Self::Error> {
Self::try_from(&hstring)
}
}
#[cfg(feature = "std")]
impl From<&HSTRING> for std::ffi::OsString {
fn from(hstring: &HSTRING) -> Self {
hstring.to_os_string()
}
}
#[cfg(feature = "std")]
impl From<HSTRING> for std::ffi::OsString {
fn from(hstring: HSTRING) -> Self {
Self::from(&hstring)
}
}

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use super::*;
/// An [HSTRING] builder that supports preallocating the `HSTRING` to avoid extra allocations and copies.
///
/// This is similar to the `WindowsPreallocateStringBuffer` function but implemented directly in Rust for efficiency.
/// It is implemented as a separate type since [HSTRING] values are immutable.
pub struct HStringBuilder(*mut HStringHeader);
impl HStringBuilder {
/// Creates a preallocated `HSTRING` value.
pub fn new(len: usize) -> Self {
let header = HStringHeader::alloc(len.try_into().unwrap());
if len > 0 {
unsafe { core::ptr::write_bytes((*header).data, 0, len) };
}
Self(header)
}
/// Shortens the string by removing any trailing 0 characters.
pub fn trim_end(&mut self) {
if let Some(header) = self.as_header_mut() {
while header.len > 0
&& unsafe { header.data.offset(header.len as isize - 1).read() == 0 }
{
header.len -= 1;
}
if header.len == 0 {
unsafe {
HStringHeader::free(self.0);
}
self.0 = core::ptr::null_mut();
}
}
}
/// Allows the `HSTRING` to be constructed from bytes.
pub fn as_bytes_mut(&mut self) -> &mut [u8] {
if let Some(header) = self.as_header() {
unsafe {
core::slice::from_raw_parts_mut(header.data as *mut _, header.len as usize * 2)
}
} else {
&mut []
}
}
fn as_header(&self) -> Option<&HStringHeader> {
unsafe { self.0.as_ref() }
}
fn as_header_mut(&mut self) -> Option<&mut HStringHeader> {
unsafe { self.0.as_mut() }
}
}
impl From<HStringBuilder> for HSTRING {
fn from(value: HStringBuilder) -> Self {
if let Some(header) = value.as_header() {
unsafe { header.data.offset(header.len as isize).write(0) };
let result = Self(value.0);
core::mem::forget(value);
result
} else {
Self::new()
}
}
}
impl core::ops::Deref for HStringBuilder {
type Target = [u16];
fn deref(&self) -> &[u16] {
if let Some(header) = self.as_header() {
unsafe { core::slice::from_raw_parts(header.data, header.len as usize) }
} else {
&[]
}
}
}
impl core::ops::DerefMut for HStringBuilder {
fn deref_mut(&mut self) -> &mut [u16] {
if let Some(header) = self.as_header() {
unsafe { core::slice::from_raw_parts_mut(header.data, header.len as usize) }
} else {
&mut []
}
}
}
impl Drop for HStringBuilder {
fn drop(&mut self) {
unsafe {
HStringHeader::free(self.0);
}
}
}
impl core::fmt::Debug for HStringBuilder {
fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
write!(
f,
"\"{}\"",
Decode(|| core::char::decode_utf16(self.iter().cloned()))
)
}
}

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use super::*;
pub const HSTRING_REFERENCE_FLAG: u32 = 1;
#[repr(C)]
pub struct HStringHeader {
pub flags: u32,
pub len: u32,
pub _0: u32,
pub _1: u32,
pub data: *mut u16,
pub count: RefCount,
pub buffer_start: u16,
}
impl HStringHeader {
pub fn alloc(len: u32) -> *mut Self {
if len == 0 {
return core::ptr::null_mut();
}
// Allocate enough space for header and two bytes per character.
// The space for the terminating null character is already accounted for inside of `HStringHeader`.
let bytes = core::mem::size_of::<Self>() + 2 * len as usize;
let header =
unsafe { bindings::HeapAlloc(bindings::GetProcessHeap(), 0, bytes) } as *mut Self;
if header.is_null() {
panic!("allocation failed");
}
unsafe {
// Use `ptr::write` (since `header` is uninitialized). `HStringHeader` is safe to be all zeros.
header.write(core::mem::MaybeUninit::<Self>::zeroed().assume_init());
(*header).len = len;
(*header).count = RefCount::new(1);
(*header).data = &mut (*header).buffer_start;
}
header
}
pub unsafe fn free(header: *mut Self) {
if header.is_null() {
return;
}
unsafe {
bindings::HeapFree(bindings::GetProcessHeap(), 0, header as *mut _);
}
}
pub fn duplicate(&self) -> *mut Self {
if self.flags & HSTRING_REFERENCE_FLAG == 0 {
// If this is not a "fast pass" string then simply increment the reference count.
self.count.add_ref();
self as *const Self as *mut Self
} else {
// Otherwise, allocate a new string and copy the value into the new string.
let copy = Self::alloc(self.len);
// SAFETY: since we are duplicating the string it is safe to copy all data from self to the initialized `copy`.
// We copy `len + 1` characters since `len` does not account for the terminating null character.
unsafe {
core::ptr::copy_nonoverlapping(self.data, (*copy).data, self.len as usize + 1);
}
copy
}
}
}

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#![doc = include_str!("../readme.md")]
#![cfg(windows)]
#![debugger_visualizer(natvis_file = "../windows-strings.natvis")]
#![cfg_attr(all(not(feature = "std")), no_std)]
extern crate alloc;
use alloc::string::String;
mod bstr;
pub use bstr::*;
mod hstring;
pub use hstring::*;
mod hstring_builder;
pub use hstring_builder::*;
mod hstring_header;
use hstring_header::*;
mod bindings;
mod decode;
use decode::*;
mod ref_count;
use ref_count::*;
mod literals;
pub use literals::*;
mod pcstr;
pub use pcstr::*;
mod pcwstr;
pub use pcwstr::*;
mod pstr;
pub use pstr::*;
mod pwstr;
pub use pwstr::*;
unsafe extern "C" {
fn strlen(s: PCSTR) -> usize;
}

165
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/// A literal UTF-8 string with a trailing null terminator.
#[macro_export]
macro_rules! s {
($s:literal) => {
$crate::PCSTR::from_raw(::core::concat!($s, '\0').as_ptr())
};
}
/// A literal UTF-16 wide string with a trailing null terminator.
#[macro_export]
macro_rules! w {
($s:literal) => {{
const INPUT: &[u8] = $s.as_bytes();
const OUTPUT_LEN: usize = $crate::utf16_len(INPUT) + 1;
const OUTPUT: &[u16; OUTPUT_LEN] = {
let mut buffer = [0; OUTPUT_LEN];
let mut input_pos = 0;
let mut output_pos = 0;
while let Some((mut code_point, new_pos)) = $crate::decode_utf8_char(INPUT, input_pos) {
input_pos = new_pos;
if code_point <= 0xffff {
buffer[output_pos] = code_point as u16;
output_pos += 1;
} else {
code_point -= 0x10000;
buffer[output_pos] = 0xd800 + (code_point >> 10) as u16;
output_pos += 1;
buffer[output_pos] = 0xdc00 + (code_point & 0x3ff) as u16;
output_pos += 1;
}
}
&{ buffer }
};
$crate::PCWSTR::from_raw(OUTPUT.as_ptr())
}};
}
/// A literal HSTRING, length-prefixed wide string with a trailing null terminator.
#[macro_export]
macro_rules! h {
($s:literal) => {{
const INPUT: &[u8] = $s.as_bytes();
const OUTPUT_LEN: usize = $crate::utf16_len(INPUT) + 1;
static RESULT: $crate::HSTRING = {
if OUTPUT_LEN == 1 {
unsafe { ::core::mem::transmute(::core::ptr::null::<u16>()) }
} else {
#[repr(C)]
struct HSTRING_HEADER {
flags: u32,
len: u32,
padding1: u32,
padding2: u32,
ptr: *const u16,
padding3: i32,
padding4: u16,
}
const OUTPUT: $crate::PCWSTR = $crate::w!($s);
const HEADER: HSTRING_HEADER = HSTRING_HEADER {
flags: 0x11,
len: (OUTPUT_LEN - 1) as u32,
padding1: 0,
padding2: 0,
ptr: OUTPUT.as_ptr(),
padding3: 0,
padding4: 0,
};
// SAFETY: an `HSTRING` is exactly equivalent to a pointer to an `HSTRING_HEADER`
unsafe { ::core::mem::transmute::<&HSTRING_HEADER, $crate::HSTRING>(&HEADER) }
}
};
&RESULT
}};
}
#[doc(hidden)]
pub const fn decode_utf8_char(bytes: &[u8], mut pos: usize) -> Option<(u32, usize)> {
if bytes.len() == pos {
return None;
}
let ch = bytes[pos] as u32;
pos += 1;
if ch <= 0x7f {
return Some((ch, pos));
}
if (ch & 0xe0) == 0xc0 {
if bytes.len() - pos < 1 {
return None;
}
let ch2 = bytes[pos] as u32;
pos += 1;
if (ch2 & 0xc0) != 0x80 {
return None;
}
let result: u32 = ((ch & 0x1f) << 6) | (ch2 & 0x3f);
if result <= 0x7f {
return None;
}
return Some((result, pos));
}
if (ch & 0xf0) == 0xe0 {
if bytes.len() - pos < 2 {
return None;
}
let ch2 = bytes[pos] as u32;
pos += 1;
let ch3 = bytes[pos] as u32;
pos += 1;
if (ch2 & 0xc0) != 0x80 || (ch3 & 0xc0) != 0x80 {
return None;
}
let result = ((ch & 0x0f) << 12) | ((ch2 & 0x3f) << 6) | (ch3 & 0x3f);
if result <= 0x7ff || (0xd800 <= result && result <= 0xdfff) {
return None;
}
return Some((result, pos));
}
if (ch & 0xf8) == 0xf0 {
if bytes.len() - pos < 3 {
return None;
}
let ch2 = bytes[pos] as u32;
pos += 1;
let ch3 = bytes[pos] as u32;
pos += 1;
let ch4 = bytes[pos] as u32;
pos += 1;
if (ch2 & 0xc0) != 0x80 || (ch3 & 0xc0) != 0x80 || (ch4 & 0xc0) != 0x80 {
return None;
}
let result =
((ch & 0x07) << 18) | ((ch2 & 0x3f) << 12) | ((ch3 & 0x3f) << 6) | (ch4 & 0x3f);
if result <= 0xffff || 0x10ffff < result {
return None;
}
return Some((result, pos));
}
None
}
#[doc(hidden)]
pub const fn utf16_len(bytes: &[u8]) -> usize {
let mut pos = 0;
let mut len = 0;
while let Some((code_point, new_pos)) = decode_utf8_char(bytes, pos) {
pos = new_pos;
len += if code_point <= 0xffff { 1 } else { 2 };
}
len
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test() {
assert_eq!(decode_utf8_char(b"123", 0), Some((0x31, 1)));
assert_eq!(decode_utf8_char(b"123", 1), Some((0x32, 2)));
assert_eq!(decode_utf8_char(b"123", 2), Some((0x33, 3)));
assert_eq!(decode_utf8_char(b"123", 3), None);
assert_eq!(utf16_len(b"123"), 3);
assert_eq!(utf16_len("α & ω".as_bytes()), 5);
}
}

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use super::*;
/// A pointer to a constant null-terminated string of 8-bit Windows (ANSI) characters.
#[repr(transparent)]
#[derive(Clone, Copy, PartialEq, Eq, Debug)]
pub struct PCSTR(pub *const u8);
impl PCSTR {
/// Construct a new `PCSTR` from a raw pointer
pub const fn from_raw(ptr: *const u8) -> Self {
Self(ptr)
}
/// Construct a null `PCSTR`
pub const fn null() -> Self {
Self(core::ptr::null())
}
/// Returns a raw pointer to the `PCSTR`
pub const fn as_ptr(&self) -> *const u8 {
self.0
}
/// Checks whether the `PCSTR` is null
pub fn is_null(&self) -> bool {
self.0.is_null()
}
/// String data without the trailing 0
///
/// # Safety
///
/// The `PCSTR`'s pointer needs to be valid for reads up until and including the next `\0`.
pub unsafe fn as_bytes(&self) -> &[u8] {
unsafe {
let len = strlen(*self);
core::slice::from_raw_parts(self.0, len)
}
}
/// Copy the `PCSTR` into a Rust `String`.
///
/// # Safety
///
/// See the safety information for `PCSTR::as_bytes`.
pub unsafe fn to_string(&self) -> core::result::Result<String, alloc::string::FromUtf8Error> {
unsafe { String::from_utf8(self.as_bytes().into()) }
}
/// Allow this string to be displayed.
///
/// # Safety
///
/// See the safety information for `PCSTR::as_bytes`.
pub unsafe fn display(&self) -> impl core::fmt::Display + '_ {
unsafe { Decode(move || decode_utf8(self.as_bytes())) }
}
}
impl Default for PCSTR {
fn default() -> Self {
Self::null()
}
}

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use super::*;
/// A pointer to a constant null-terminated string of 16-bit Unicode characters.
#[repr(transparent)]
#[derive(Clone, Copy, PartialEq, Eq, Debug)]
pub struct PCWSTR(pub *const u16);
impl PCWSTR {
/// Construct a new `PCWSTR` from a raw pointer
pub const fn from_raw(ptr: *const u16) -> Self {
Self(ptr)
}
/// Construct a null `PCWSTR`
pub const fn null() -> Self {
Self(core::ptr::null())
}
/// Returns a raw pointer to the `PCWSTR`
pub const fn as_ptr(&self) -> *const u16 {
self.0
}
/// Checks whether the `PCWSTR` is null
pub fn is_null(&self) -> bool {
self.0.is_null()
}
/// String length without the trailing 0
///
/// # Safety
///
/// The `PCWSTR`'s pointer needs to be valid for reads up until and including the next `\0`.
pub unsafe fn len(&self) -> usize {
unsafe extern "C" {
fn wcslen(s: *const u16) -> usize;
}
unsafe { wcslen(self.0) }
}
/// Returns `true` if the string length is zero, and `false` otherwise.
///
/// # Safety
///
/// The `PCWSTR`'s pointer needs to be valid for reads up until and including the next `\0`.
pub unsafe fn is_empty(&self) -> bool {
unsafe { self.len() == 0 }
}
/// String data without the trailing 0
///
/// # Safety
///
/// The `PCWSTR`'s pointer needs to be valid for reads up until and including the next `\0`.
pub unsafe fn as_wide(&self) -> &[u16] {
unsafe { core::slice::from_raw_parts(self.0, self.len()) }
}
/// Copy the `PCWSTR` into a Rust `String`.
///
/// # Safety
///
/// See the safety information for `PCWSTR::as_wide`.
pub unsafe fn to_string(&self) -> core::result::Result<String, alloc::string::FromUtf16Error> {
unsafe { String::from_utf16(self.as_wide()) }
}
/// Copy the `PCWSTR` into an `HSTRING`.
///
/// # Safety
///
/// See the safety information for `PCWSTR::as_wide`.
pub unsafe fn to_hstring(&self) -> HSTRING {
unsafe { HSTRING::from_wide(self.as_wide()) }
}
/// Allow this string to be displayed.
///
/// # Safety
///
/// See the safety information for `PCWSTR::as_wide`.
pub unsafe fn display(&self) -> impl core::fmt::Display + '_ {
unsafe { Decode(move || core::char::decode_utf16(self.as_wide().iter().cloned())) }
}
}
impl Default for PCWSTR {
fn default() -> Self {
Self::null()
}
}
impl AsRef<Self> for PCWSTR {
fn as_ref(&self) -> &Self {
self
}
}

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vendor/windows-strings/src/pstr.rs vendored Normal file
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use super::*;
/// A pointer to a null-terminated string of 8-bit Windows (ANSI) characters.
#[repr(transparent)]
#[derive(Clone, Copy, PartialEq, Eq, Debug)]
pub struct PSTR(pub *mut u8);
impl PSTR {
/// Construct a new `PSTR` from a raw pointer
pub const fn from_raw(ptr: *mut u8) -> Self {
Self(ptr)
}
/// Construct a null `PSTR`
pub const fn null() -> Self {
Self(core::ptr::null_mut())
}
/// Returns a raw pointer to the `PSTR`
pub const fn as_ptr(&self) -> *mut u8 {
self.0
}
/// Checks whether the `PSTR` is null
pub fn is_null(&self) -> bool {
self.0.is_null()
}
/// String data without the trailing 0
///
/// # Safety
///
/// The `PSTR`'s pointer needs to be valid for reads up until and including the next `\0`.
pub unsafe fn as_bytes(&self) -> &[u8] {
unsafe {
let len = strlen(PCSTR::from_raw(self.0));
core::slice::from_raw_parts(self.0, len)
}
}
/// Copy the `PSTR` into a Rust `String`.
///
/// # Safety
///
/// See the safety information for `PSTR::as_bytes`.
pub unsafe fn to_string(&self) -> core::result::Result<String, alloc::string::FromUtf8Error> {
unsafe { String::from_utf8(self.as_bytes().into()) }
}
/// Allow this string to be displayed.
///
/// # Safety
///
/// See the safety information for `PSTR::as_bytes`.
pub unsafe fn display(&self) -> impl core::fmt::Display + '_ {
unsafe { Decode(move || decode_utf8(self.as_bytes())) }
}
}
impl Default for PSTR {
fn default() -> Self {
Self::null()
}
}

88
vendor/windows-strings/src/pwstr.rs vendored Normal file
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use super::*;
/// A pointer to a null-terminated string of 16-bit Unicode characters.
#[repr(transparent)]
#[derive(Clone, Copy, PartialEq, Eq, Debug)]
pub struct PWSTR(pub *mut u16);
impl PWSTR {
/// Construct a new `PWSTR` from a raw pointer.
pub const fn from_raw(ptr: *mut u16) -> Self {
Self(ptr)
}
/// Construct a null `PWSTR`.
pub const fn null() -> Self {
Self(core::ptr::null_mut())
}
/// Returns a raw pointer to the `PWSTR`.
pub const fn as_ptr(&self) -> *mut u16 {
self.0
}
/// Checks whether the `PWSTR` is null.
pub fn is_null(&self) -> bool {
self.0.is_null()
}
/// String length without the trailing 0
///
/// # Safety
///
/// The `PWSTR`'s pointer needs to be valid for reads up until and including the next `\0`.
pub unsafe fn len(&self) -> usize {
unsafe { PCWSTR(self.0).len() }
}
/// Returns `true` if the string length is zero, and `false` otherwise.
///
/// # Safety
///
/// The `PWSTR`'s pointer needs to be valid for reads up until and including the next `\0`.
pub unsafe fn is_empty(&self) -> bool {
unsafe { self.len() == 0 }
}
/// String data without the trailing 0.
///
/// # Safety
///
/// The `PWSTR`'s pointer needs to be valid for reads up until and including the next `\0`.
pub unsafe fn as_wide(&self) -> &[u16] {
unsafe { core::slice::from_raw_parts(self.0, self.len()) }
}
/// Copy the `PWSTR` into a Rust `String`.
///
/// # Safety
///
/// See the safety information for `PWSTR::as_wide`.
pub unsafe fn to_string(&self) -> core::result::Result<String, alloc::string::FromUtf16Error> {
unsafe { String::from_utf16(self.as_wide()) }
}
/// Copy the `PWSTR` into an `HSTRING`.
///
/// # Safety
///
/// See the safety information for `PWSTR::as_wide`.
pub unsafe fn to_hstring(&self) -> HSTRING {
unsafe { HSTRING::from_wide(self.as_wide()) }
}
/// Allow this string to be displayed.
///
/// # Safety
///
/// See the safety information for `PWSTR::as_wide`.
pub unsafe fn display(&self) -> impl core::fmt::Display + '_ {
unsafe { Decode(move || core::char::decode_utf16(self.as_wide().iter().cloned())) }
}
}
impl Default for PWSTR {
fn default() -> Self {
Self::null()
}
}

27
vendor/windows-strings/src/ref_count.rs vendored Normal file
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use core::sync::atomic::{fence, AtomicI32, Ordering};
#[repr(transparent)]
#[derive(Default)]
pub struct RefCount(pub(crate) AtomicI32);
impl RefCount {
pub fn new(count: u32) -> Self {
Self(AtomicI32::new(count as i32))
}
pub fn add_ref(&self) -> u32 {
(self.0.fetch_add(1, Ordering::Relaxed) + 1) as u32
}
pub fn release(&self) -> u32 {
let remaining = self.0.fetch_sub(1, Ordering::Release) - 1;
match remaining.cmp(&0) {
core::cmp::Ordering::Equal => fence(Ordering::Acquire),
core::cmp::Ordering::Less => panic!("Object has been over-released."),
core::cmp::Ordering::Greater => {}
}
remaining as u32
}
}

62
vendor/windows-strings/windows-strings.natvis vendored Normal file
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<?xml version="1.0" encoding="utf-8"?>
<AutoVisualizer xmlns="http://schemas.microsoft.com/vstudio/debugger/natvis/2010">
<Type Name="windows_strings::hstring::HSTRING">
<Intrinsic Name="header" Expression="(windows_strings::hstring_header::HStringHeader *)__0" />
<Intrinsic Name="is_empty" Expression="__0 == 0" />
<DisplayString Condition="is_empty()">""</DisplayString>
<DisplayString>{header()->data,[header()->len]su}</DisplayString>
<Expand>
<Item Name="[len]">is_empty() ? (unsigned int)0 : header()->len</Item>
<Item Name="[ref_count]" Condition="!is_empty()">header()->count</Item>
<Item Name="[flags]" Condition="!is_empty()">header()->flags</Item>
<Synthetic Name="[chars]" Condition="!is_empty()">
<Expand>
<ArrayItems>
<Size>header()->len</Size>
<ValuePointer>(char16_t*)header()->data</ValuePointer>
</ArrayItems>
</Expand>
</Synthetic>
</Expand>
</Type>
<Type Name="windows_strings::pstr::PSTR">
<AlternativeType Name="windows_strings::pcstr::PCSTR" />
<Intrinsic Name="len" Expression="strlen(((char*)__0))" />
<DisplayString>{(char*)__0,[len()]s8}</DisplayString>
<Expand>
<Item Name="[len]">len()</Item>
<Synthetic Name="[chars]">
<Expand>
<ArrayItems>
<Size>len()</Size>
<ValuePointer>(char*)__0</ValuePointer>
</ArrayItems>
</Expand>
</Synthetic>
</Expand>
</Type>
<Type Name="windows_strings::pwstr::PWSTR">
<AlternativeType Name="windows_strings::pcwstr::PCWSTR" />
<Intrinsic Name="len" Expression="wcslen(((WCHAR*)__0))" />
<DisplayString>{(char16_t*)__0,[len()]su}</DisplayString>
<Expand>
<Item Name="[len]">len()</Item>
<Synthetic Name="[chars]">
<Expand>
<ArrayItems>
<Size>len()</Size>
<ValuePointer>(char16_t*)__0</ValuePointer>
</ArrayItems>
</Expand>
</Synthetic>
</Expand>
</Type>
<Type Name="windows_strings::ref_count::RefCount">
<DisplayString>{__0}</DisplayString>
</Type>
</AutoVisualizer>