From 43a97878ce14b72f0981164f87f2e35e14151312 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:22:09 +0200 Subject: Adding upstream version 110.0.1. Signed-off-by: Daniel Baumann --- .../rust/rusqlite/src/load_extension_guard.rs | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 third_party/rust/rusqlite/src/load_extension_guard.rs (limited to 'third_party/rust/rusqlite/src/load_extension_guard.rs') diff --git a/third_party/rust/rusqlite/src/load_extension_guard.rs b/third_party/rust/rusqlite/src/load_extension_guard.rs new file mode 100644 index 0000000000..deed3b4bdd --- /dev/null +++ b/third_party/rust/rusqlite/src/load_extension_guard.rs @@ -0,0 +1,46 @@ +use crate::{Connection, Result}; + +/// RAII guard temporarily enabling SQLite extensions to be loaded. +/// +/// ## Example +/// +/// ```rust,no_run +/// # use rusqlite::{Connection, Result, LoadExtensionGuard}; +/// # use std::path::{Path}; +/// fn load_my_extension(conn: &Connection) -> Result<()> { +/// unsafe { +/// let _guard = LoadExtensionGuard::new(conn)?; +/// conn.load_extension("trusted/sqlite/extension", None) +/// } +/// } +/// ``` +#[cfg_attr(docsrs, doc(cfg(feature = "load_extension")))] +pub struct LoadExtensionGuard<'conn> { + conn: &'conn Connection, +} + +impl LoadExtensionGuard<'_> { + /// Attempt to enable loading extensions. Loading extensions will be + /// disabled when this guard goes out of scope. Cannot be meaningfully + /// nested. + /// + /// # Safety + /// + /// You must not run untrusted queries while extension loading is enabled. + /// + /// See the safety comment on [`Connection::load_extension_enable`] for more + /// details. + #[inline] + pub unsafe fn new(conn: &Connection) -> Result> { + conn.load_extension_enable() + .map(|_| LoadExtensionGuard { conn }) + } +} + +#[allow(unused_must_use)] +impl Drop for LoadExtensionGuard<'_> { + #[inline] + fn drop(&mut self) { + self.conn.load_extension_disable(); + } +} -- cgit v1.2.3