From ce6e30f7272fd0c064ef52ac85cad1c0f05fd323 Mon Sep 17 00:00:00 2001
From: Valentin Popov <valentin@popov.link>
Date: Tue, 10 Feb 2026 08:26:49 +0000
Subject: feat: добавить библиотеку common с ресурсами и буферами вывода;
 обновить зависимости в nres и rsli
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---
 crates/common/src/lib.rs | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 crates/common/src/lib.rs

(limited to 'crates/common/src')

diff --git a/crates/common/src/lib.rs b/crates/common/src/lib.rs
new file mode 100644
index 0000000..bb9e778
--- /dev/null
+++ b/crates/common/src/lib.rs
@@ -0,0 +1,43 @@
+use std::io;
+
+/// Resource payload that can be either borrowed from mapped bytes or owned.
+#[derive(Clone, Debug)]
+pub enum ResourceData<'a> {
+    Borrowed(&'a [u8]),
+    Owned(Vec<u8>),
+}
+
+impl<'a> ResourceData<'a> {
+    pub fn as_slice(&self) -> &[u8] {
+        match self {
+            Self::Borrowed(slice) => slice,
+            Self::Owned(buf) => buf.as_slice(),
+        }
+    }
+
+    pub fn into_owned(self) -> Vec<u8> {
+        match self {
+            Self::Borrowed(slice) => slice.to_vec(),
+            Self::Owned(buf) => buf,
+        }
+    }
+}
+
+impl AsRef<[u8]> for ResourceData<'_> {
+    fn as_ref(&self) -> &[u8] {
+        self.as_slice()
+    }
+}
+
+/// Output sink used by `read_into`/`load_into` APIs.
+pub trait OutputBuffer {
+    fn write_exact(&mut self, data: &[u8]) -> io::Result<()>;
+}
+
+impl OutputBuffer for Vec<u8> {
+    fn write_exact(&mut self, data: &[u8]) -> io::Result<()> {
+        self.clear();
+        self.extend_from_slice(data);
+        Ok(())
+    }
+}
-- 
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