Adding upstream version 124.0.1.upstream/124.0.1

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

8 files changed, 640 insertions, 0 deletions

diff --git a/third_party/rust/diplomat-runtime/.cargo-checksum.json b/third_party/rust/diplomat-runtime/.cargo-checksum.json
new file mode 100644
index 0000000000..fa0aae0776
--- /dev/null
+++ b/third_party/rust/diplomat-runtime/.cargo-checksum.json
@@ -0,0 +1 @@
+{"files":{"Cargo.toml":"ea77755aae387e62c45564000302e3c7a5ceda3be2f9ef8664e26ee871627b88","LICENSE-APACHE":"639c20c7f14fb122750d5ad1a6cfb116d9bf8d103e709ee40949e5a12a731666","LICENSE-MIT":"3337fe6e4a3830ad87c23cb9d6d750f9a1e5c45efc08de9c76c1a207fc6966c4","src/lib.rs":"1f42457d57ec23fd89f05af631eb73728f37a9790cd604ce1ce94ef153869fb0","src/result.rs":"2b07ce3cbb02a141abc35742f307cc4ef2b097ce610e04d92a50c469f354401d","src/wasm_glue.rs":"3712ccddfeacb98a37be9354a315cc013d9b6ba0bf2f351e0a806112d1f87c15","src/writeable.rs":"80d8a93feba545fcb3150b8daf546f3e060b0c8c11f13917409dd455abe0c3bd"},"package":"f7b0f23d549a46540e26e5490cd44c64ced0d762959f1ffdec6ab0399634cf3c"}
\ No newline at end of file
diff --git a/third_party/rust/diplomat-runtime/Cargo.toml b/third_party/rust/diplomat-runtime/Cargo.toml
new file mode 100644
index 0000000000..99c0e4c6ed
--- /dev/null
+++ b/third_party/rust/diplomat-runtime/Cargo.toml
@@ -0,0 +1,36 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+edition = "2018"
+name = "diplomat-runtime"
+version = "0.7.0"
+authors = [
+    "Shadaj Laddad <shadaj@users.noreply.github.com>",
+    "Manish Goregaokar <manishsmail@gmail.com>",
+    "Quinn Okabayashi <QnnOkabayashi@users.noreply.github.com>",
+]
+description = "Common runtime utilities used by diplomat codegen"
+documentation = "https://docs.rs/diplomat_core/"
+keywords = [
+    "ffi",
+    "codegen",
+]
+categories = ["development-tools"]
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/rust-diplomat/diplomat"
+
+[lib]
+path = "src/lib.rs"
+
+[dependencies.log]
+version = "0.4"
+optional = true
diff --git a/third_party/rust/diplomat-runtime/LICENSE-APACHE b/third_party/rust/diplomat-runtime/LICENSE-APACHE
new file mode 100644
index 0000000000..05fcffa855
--- /dev/null
+++ b/third_party/rust/diplomat-runtime/LICENSE-APACHE
@@ -0,0 +1,201 @@
+                              Apache License
+                        Version 2.0, January 2004
+                     http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+   "License" shall mean the terms and conditions for use, reproduction,
+   and distribution as defined by Sections 1 through 9 of this document.
+
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+   "Legal Entity" shall mean the union of the acting entity and all
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+   You may add Your own copyright statement to Your modifications and
+   may provide additional or different license terms and conditions
+   for use, reproduction, or distribution of Your modifications, or
+   for any such Derivative Works as a whole, provided Your use,
+   reproduction, and distribution of the Work otherwise complies with
+   the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+   any Contribution intentionally submitted for inclusion in the Work
+   by You to the Licensor shall be under the terms and conditions of
+   this License, without any additional terms or conditions.
+   Notwithstanding the above, nothing herein shall supersede or modify
+   the terms of any separate license agreement you may have executed
+   with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+   names, trademarks, service marks, or product names of the Licensor,
+   except as required for reasonable and customary use in describing the
+   origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+   agreed to in writing, Licensor provides the Work (and each
+   Contributor provides its Contributions) on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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+8. Limitation of Liability. In no event and under no legal theory,
+   whether in tort (including negligence), contract, or otherwise,
+   unless required by applicable law (such as deliberate and grossly
+   negligent acts) or agreed to in writing, shall any Contributor be
+   liable to You for damages, including any direct, indirect, special,
+   incidental, or consequential damages of any character arising as a
+   result of this License or out of the use or inability to use the
+   Work (including but not limited to damages for loss of goodwill,
+   work stoppage, computer failure or malfunction, or any and all
+   other commercial damages or losses), even if such Contributor
+   has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing
+   the Work or Derivative Works thereof, You may choose to offer,
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+   License. However, in accepting such obligations, You may act only
+   on Your own behalf and on Your sole responsibility, not on behalf
+   of any other Contributor, and only if You agree to indemnify,
+   defend, and hold each Contributor harmless for any liability
+   incurred by, or claims asserted against, such Contributor by reason
+   of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+   To apply the Apache License to your work, attach the following
+   boilerplate notice, with the fields enclosed by brackets "[]"
+   replaced with your own identifying information. (Don't include
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+Copyright 2022 The Diplomat Developers
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+	http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
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diff --git a/third_party/rust/diplomat-runtime/LICENSE-MIT b/third_party/rust/diplomat-runtime/LICENSE-MIT
new file mode 100644
index 0000000000..cf62c31bc7
--- /dev/null
+++ b/third_party/rust/diplomat-runtime/LICENSE-MIT
@@ -0,0 +1,27 @@
+MIT License
+
+Copyright (c) 2022 The Diplomat Developers
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/third_party/rust/diplomat-runtime/src/lib.rs b/third_party/rust/diplomat-runtime/src/lib.rs
new file mode 100644
index 0000000000..fa1c5d7dda
--- /dev/null
+++ b/third_party/rust/diplomat-runtime/src/lib.rs
@@ -0,0 +1,32 @@
+#![cfg_attr(not(any(target_arch = "wasm32")), no_std)]
+
+extern crate alloc;
+
+use alloc::alloc::Layout;
+
+#[cfg(target_arch = "wasm32")]
+// defines `extern "C" diplomat_init()`
+mod wasm_glue;
+
+mod writeable;
+pub use writeable::DiplomatWriteable;
+
+mod result;
+pub use result::DiplomatResult;
+
+/// Allocates a buffer of a given size in Rust's memory.
+///
+/// # Safety
+/// - The allocated buffer must be freed with [`diplomat_free()`].
+#[no_mangle]
+pub unsafe extern "C" fn diplomat_alloc(size: usize, align: usize) -> *mut u8 {
+    alloc::alloc::alloc(Layout::from_size_align(size, align).unwrap())
+}
+
+/// Frees a buffer that was allocated in Rust's memory.
+/// # Safety
+/// - `ptr` must be a pointer to a valid buffer allocated by [`diplomat_alloc()`].
+#[no_mangle]
+pub unsafe extern "C" fn diplomat_free(ptr: *mut u8, size: usize, align: usize) {
+    alloc::alloc::dealloc(ptr, Layout::from_size_align(size, align).unwrap())
+}
diff --git a/third_party/rust/diplomat-runtime/src/result.rs b/third_party/rust/diplomat-runtime/src/result.rs
new file mode 100644
index 0000000000..003281fd43
--- /dev/null
+++ b/third_party/rust/diplomat-runtime/src/result.rs
@@ -0,0 +1,60 @@
+use core::mem::ManuallyDrop;
+
+#[repr(C)]
+union DiplomatResultValue<T, E> {
+    ok: ManuallyDrop<T>,
+    err: ManuallyDrop<E>,
+}
+
+/// A `Result`-like type that can be passed across the FFI boundary
+/// as a value. Use this type when returning a result from an FFI
+/// function instead of `Result`.
+#[repr(C)]
+pub struct DiplomatResult<T, E> {
+    value: DiplomatResultValue<T, E>,
+    pub is_ok: bool,
+}
+
+impl<T, E> Drop for DiplomatResult<T, E> {
+    fn drop(&mut self) {
+        unsafe {
+            if self.is_ok {
+                let _ = ManuallyDrop::take(&mut self.value.ok);
+            } else {
+                let _ = ManuallyDrop::take(&mut self.value.err);
+            }
+        }
+    }
+}
+
+impl<T, E> From<Result<T, E>> for DiplomatResult<T, E> {
+    fn from(result: Result<T, E>) -> Self {
+        match result {
+            Result::Ok(ok) => DiplomatResult {
+                value: DiplomatResultValue {
+                    ok: ManuallyDrop::new(ok),
+                },
+                is_ok: true,
+            },
+
+            Result::Err(err) => DiplomatResult {
+                value: DiplomatResultValue {
+                    err: ManuallyDrop::new(err),
+                },
+                is_ok: false,
+            },
+        }
+    }
+}
+
+impl<T, E> From<DiplomatResult<T, E>> for Result<T, E> {
+    fn from(mut result: DiplomatResult<T, E>) -> Result<T, E> {
+        unsafe {
+            if result.is_ok {
+                Ok(ManuallyDrop::take(&mut result.value.ok))
+            } else {
+                Err(ManuallyDrop::take(&mut result.value.err))
+            }
+        }
+    }
+}
diff --git a/third_party/rust/diplomat-runtime/src/wasm_glue.rs b/third_party/rust/diplomat-runtime/src/wasm_glue.rs
new file mode 100644
index 0000000000..98a46139a3
--- /dev/null
+++ b/third_party/rust/diplomat-runtime/src/wasm_glue.rs
@@ -0,0 +1,94 @@
+use alloc::format;
+use core::panic::PanicInfo;
+
+#[no_mangle]
+unsafe extern "C" fn diplomat_init() {
+    #[cfg(debug_assertions)]
+    std::panic::set_hook(Box::new(panic_handler));
+    #[cfg(feature = "log")]
+    log::set_logger(&ConsoleLogger)
+        .map(|()| log::set_max_level(log::LevelFilter::Debug))
+        .unwrap();
+}
+
+fn panic_handler(info: &PanicInfo) {
+    let msg = match info.payload().downcast_ref::<&'static str>() {
+        Some(&s) => s,
+        None => match info.payload().downcast_ref::<String>() {
+            Some(s) => s.as_str(),
+            None => "Box<Any>",
+        },
+    };
+
+    let msg = match info.location() {
+        Some(l) => format!(
+            "wasm panicked at {}:{}:{}:\n{msg}",
+            l.file(),
+            l.line(),
+            l.column(),
+        ),
+        None => format!("wasm panicked at <unknown location>:\n{msg}"),
+    };
+
+    extern "C" {
+        fn diplomat_throw_error_js(ptr: *const u8, len: usize);
+    }
+
+    unsafe { diplomat_throw_error_js(msg.as_ptr(), msg.len()) }
+}
+
+#[cfg(feature = "log")]
+struct ConsoleLogger;
+
+#[cfg(feature = "log")]
+impl log::Log for ConsoleLogger {
+    #[inline]
+    fn enabled(&self, metadata: &log::Metadata) -> bool {
+        metadata.level() <= log::max_level()
+    }
+
+    fn log(&self, record: &log::Record) {
+        if !self.enabled(record.metadata()) {
+            return;
+        }
+
+        let out = match record.level() {
+            log::Level::Error => {
+                extern "C" {
+                    fn diplomat_console_error_js(ptr: *const u8, len: usize);
+                }
+                diplomat_console_error_js
+            }
+            log::Level::Warn => {
+                extern "C" {
+                    fn diplomat_console_warn_js(ptr: *const u8, len: usize);
+                }
+                diplomat_console_warn_js
+            }
+            log::Level::Info => {
+                extern "C" {
+                    fn diplomat_console_info_js(ptr: *const u8, len: usize);
+                }
+                diplomat_console_info_js
+            }
+            log::Level::Debug => {
+                extern "C" {
+                    fn diplomat_console_log_js(ptr: *const u8, len: usize);
+                }
+                diplomat_console_log_js
+            }
+            log::Level::Trace => {
+                extern "C" {
+                    fn diplomat_console_debug_js(ptr: *const u8, len: usize);
+                }
+                diplomat_console_debug_js
+            }
+        };
+
+        let msg = alloc::format!("{}", record.args());
+
+        unsafe { out(msg.as_ptr(), msg.len()) };
+    }
+
+    fn flush(&self) {}
+}
diff --git a/third_party/rust/diplomat-runtime/src/writeable.rs b/third_party/rust/diplomat-runtime/src/writeable.rs
new file mode 100644
index 0000000000..d37f4197b5
--- /dev/null
+++ b/third_party/rust/diplomat-runtime/src/writeable.rs
@@ -0,0 +1,189 @@
+use alloc::boxed::Box;
+use alloc::vec::Vec;
+use core::ffi::c_void;
+use core::{fmt, ptr};
+
+/// An object that can one can write UTF-8 strings to
+///
+/// This allows the C API to write to arbitrary kinds of objects, for example a
+/// C++ std::string or a char buffer.
+///
+/// The way to use this object is to fill out the `buf`, `len`, `cap` fields with
+/// appropriate values for the buffer, its current length, and its current capacity,
+/// and `flush` and `grow` with appropriate callbacks (using `context` to reference any
+/// state they need). This object will be passed by mutable reference to the Rust side,
+/// and Rust will write to it, calling `grow()` as necessary. Once done, it will call `flush()`
+/// to update any state on `context` (e.g. adding a null terminator, updating the length).
+/// The object on the foreign side will be directly usable after this, the foreign side
+/// need not perform additional state updates after passing an [`DiplomatWriteable`] to
+/// a function.
+///
+/// [`diplomat_simple_writeable()`] can be used to write to a fixed-size char buffer.
+///
+/// May be extended in the future to support further invariants
+///
+/// DiplomatWriteable will not perform any cleanup on `context` or `buf`, these are logically
+/// "borrows" from the FFI side.
+///
+/// # Safety invariants:
+///  - `flush()` and `grow()` will be passed `self` including `context` and it should always be safe to do so.
+///     `context` may be  null, however `flush()` and `grow()` must then be ready to receive it as such.
+///  - `buf` must be `cap` bytes long
+///  - `grow()` must either return false or update `buf` and `cap` for a valid buffer
+///    of at least the requested buffer size
+///  - `DiplomatWriteable::flush()` will be automatically called by Diplomat. `flush()` might also be called
+///    (erroneously) on the Rust side (it's a public method), so it must be idempotent.
+#[repr(C)]
+pub struct DiplomatWriteable {
+    /// Context pointer for additional data needed by `grow()` and `flush()`. May be `null`.
+    ///
+    /// The pointer may reference structured data on the foreign side,
+    /// such as C++ std::string, used to reallocate buf.
+    context: *mut c_void,
+    /// The raw string buffer, which will be mutated on the Rust side.
+    buf: *mut u8,
+    /// The current filled size of the buffer
+    len: usize,
+    /// The current capacity of the buffer
+    cap: usize,
+    /// Called by Rust to indicate that there is no more data to write.
+    ///
+    /// May be called multiple times.
+    ///
+    /// Arguments:
+    /// - `self` (`*mut DiplomatWriteable`): This `DiplomatWriteable`
+    flush: extern "C" fn(*mut DiplomatWriteable),
+    /// Called by Rust to request more capacity in the buffer. The implementation should allocate a new
+    /// buffer and copy the contents of the old buffer into the new buffer, updating `self.buf` and `self.cap`
+    ///
+    /// Arguments:
+    /// - `self` (`*mut DiplomatWriteable`): This `DiplomatWriteable`
+    /// - `capacity` (`usize`): The requested capacity.
+    ///
+    /// Returns: `true` if the allocation succeeded. Should not update any state if it failed.
+    grow: extern "C" fn(*mut DiplomatWriteable, usize) -> bool,
+}
+
+impl DiplomatWriteable {
+    /// Call this function before releasing the buffer to C
+    pub fn flush(&mut self) {
+        (self.flush)(self);
+    }
+}
+impl fmt::Write for DiplomatWriteable {
+    fn write_str(&mut self, s: &str) -> Result<(), fmt::Error> {
+        let needed_len = self.len + s.len();
+        if needed_len > self.cap {
+            let success = (self.grow)(self, needed_len);
+            if !success {
+                return Err(fmt::Error);
+            }
+        }
+        debug_assert!(needed_len <= self.cap);
+        unsafe {
+            ptr::copy_nonoverlapping(s.as_bytes().as_ptr(), self.buf.add(self.len), s.len());
+        }
+        self.len = needed_len;
+        Ok(())
+    }
+}
+
+/// Create an `DiplomatWriteable` that can write to a fixed-length stack allocated `u8` buffer.
+///
+/// Once done, this will append a null terminator to the written string.
+///
+/// # Safety
+///
+///  - `buf` must be a valid pointer to a region of memory that can hold at `buf_size` bytes
+#[no_mangle]
+pub unsafe extern "C" fn diplomat_simple_writeable(
+    buf: *mut u8,
+    buf_size: usize,
+) -> DiplomatWriteable {
+    extern "C" fn grow(_this: *mut DiplomatWriteable, _cap: usize) -> bool {
+        false
+    }
+    extern "C" fn flush(this: *mut DiplomatWriteable) {
+        unsafe {
+            debug_assert!((*this).len <= (*this).cap);
+            let buf = (*this).buf;
+            ptr::write(buf.add((*this).len), 0)
+        }
+    }
+    DiplomatWriteable {
+        context: ptr::null_mut(),
+        buf,
+        len: 0,
+        // keep an extra byte in our pocket for the null terminator
+        cap: buf_size - 1,
+        flush,
+        grow,
+    }
+}
+
+/// Create an [`DiplomatWriteable`] that can write to a dynamically allocated buffer managed by Rust.
+///
+/// Use [`diplomat_buffer_writeable_destroy()`] to free the writable and its underlying buffer.
+#[no_mangle]
+pub extern "C" fn diplomat_buffer_writeable_create(cap: usize) -> *mut DiplomatWriteable {
+    extern "C" fn grow(this: *mut DiplomatWriteable, new_cap: usize) -> bool {
+        unsafe {
+            let this = this.as_mut().unwrap();
+            let mut vec = Vec::from_raw_parts(this.buf, 0, this.cap);
+            vec.reserve(new_cap);
+            this.cap = vec.capacity();
+            this.buf = vec.as_mut_ptr();
+            core::mem::forget(vec);
+        }
+        true
+    }
+
+    extern "C" fn flush(_: *mut DiplomatWriteable) {}
+
+    let mut vec = Vec::<u8>::with_capacity(cap);
+    let ret = DiplomatWriteable {
+        context: ptr::null_mut(),
+        buf: vec.as_mut_ptr(),
+        len: 0,
+        cap,
+        flush,
+        grow,
+    };
+
+    core::mem::forget(vec);
+    Box::into_raw(Box::new(ret))
+}
+
+/// Grabs a pointer to the underlying buffer of a writable.
+///
+/// # Safety
+/// - The returned pointer is valid until the passed writable is destroyed.
+/// - `this` must be a pointer to a valid [`DiplomatWriteable`] constructed by
+/// [`diplomat_buffer_writeable_create()`].
+#[no_mangle]
+pub extern "C" fn diplomat_buffer_writeable_get_bytes(this: &DiplomatWriteable) -> *mut u8 {
+    this.buf
+}
+
+/// Gets the length in bytes of the content written to the writable.
+///
+/// # Safety
+/// - `this` must be a pointer to a valid [`DiplomatWriteable`] constructed by
+/// [`diplomat_buffer_writeable_create()`].
+#[no_mangle]
+pub extern "C" fn diplomat_buffer_writeable_len(this: &DiplomatWriteable) -> usize {
+    this.len
+}
+
+/// Destructor for Rust-memory backed writables.
+///
+/// # Safety
+/// - `this` must be a pointer to a valid [`DiplomatWriteable`] constructed by
+/// [`diplomat_buffer_writeable_create()`].
+#[no_mangle]
+pub unsafe extern "C" fn diplomat_buffer_writeable_destroy(this: *mut DiplomatWriteable) {
+    let this = Box::from_raw(this);
+    let vec = Vec::from_raw_parts(this.buf, 0, this.cap);
+    drop(vec);
+    drop(this);
+}