1 files changed, 36 insertions, 0 deletions
diff --git a/toolkit/crashreporter/client/app/src/ui/windows/widestring.rs b/toolkit/crashreporter/client/app/src/ui/windows/widestring.rs
new file mode 100644
index 0000000000..0dc713352b
--- /dev/null
+++ b/toolkit/crashreporter/client/app/src/ui/windows/widestring.rs
@@ -0,0 +1,36 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use std::ffi::OsStr;
+use std::os::windows::ffi::OsStrExt;
+use windows_sys::core::PCWSTR;
+
+/// Windows wide strings.
+///
+/// These are utf16 encoded with a terminating null character (0).
+pub struct WideString(Vec<u16>);
+
+impl WideString {
+    pub fn new(os_str: impl AsRef<OsStr>) -> Self {
+        // TODO: doesn't check whether the OsStr contains a null character, which could be treated
+        // as an error (as `CString::new` does).
+        WideString(
+            os_str
+                .as_ref()
+                .encode_wide()
+                .chain(std::iter::once(0))
+                // Remove unicode BIDI markers (from fluent) which aren't rendered correctly.
+                .filter(|c| *c != 0x2068 && *c != 0x2069)
+                .collect(),
+        )
+    }
+
+    pub fn pcwstr(&self) -> PCWSTR {
+        self.0.as_ptr()
+    }
+
+    pub fn as_slice(&self) -> &[u16] {
+        &self.0
+    }
+}