1 files changed, 63 insertions, 0 deletions
diff --git a/vendor/gix-config/src/file/mutable/value.rs b/vendor/gix-config/src/file/mutable/value.rs
new file mode 100644
index 000000000..2bccfd32a
--- /dev/null
+++ b/vendor/gix-config/src/file/mutable/value.rs
@@ -0,0 +1,63 @@
+use std::borrow::Cow;
+
+use bstr::BStr;
+
+use crate::{
+    file,
+    file::{mutable::section::SectionMut, Index, Size},
+    lookup,
+    parse::section,
+};
+
+/// An intermediate representation of a mutable value obtained from a [`File`][crate::File].
+#[derive(PartialEq, Eq, Hash, PartialOrd, Ord, Debug)]
+pub struct ValueMut<'borrow, 'lookup, 'event> {
+    pub(crate) section: SectionMut<'borrow, 'event>,
+    pub(crate) key: section::Key<'lookup>,
+    pub(crate) index: Index,
+    pub(crate) size: Size,
+}
+
+impl<'borrow, 'lookup, 'event> ValueMut<'borrow, 'lookup, 'event> {
+    /// Returns the actual value. This is computed each time this is called
+    /// requiring an allocation for multi-line values.
+    pub fn get(&self) -> Result<Cow<'_, BStr>, lookup::existing::Error> {
+        self.section.get(&self.key, self.index, self.index + self.size)
+    }
+
+    /// Update the value to the provided one. This modifies the value such that
+    /// the Value event(s) are replaced with a single new event containing the
+    /// new value.
+    pub fn set_string(&mut self, input: impl AsRef<str>) {
+        self.set(input.as_ref());
+    }
+
+    /// Update the value to the provided one. This modifies the value such that
+    /// the Value event(s) are replaced with a single new event containing the
+    /// new value.
+    pub fn set<'a>(&mut self, input: impl Into<&'a BStr>) {
+        if self.size.0 > 0 {
+            self.section.delete(self.index, self.index + self.size);
+        }
+        self.size = self.section.set_internal(self.index, self.key.to_owned(), input.into());
+    }
+
+    /// Removes the value. Does nothing when called multiple times in
+    /// succession.
+    pub fn delete(&mut self) {
+        if self.size.0 > 0 {
+            self.section.delete(self.index, self.index + self.size);
+            self.size = Size(0);
+        }
+    }
+
+    /// Return the section containing the value.
+    pub fn section(&self) -> &file::Section<'event> {
+        &self.section
+    }
+
+    /// Convert this value into its owning mutable section.
+    pub fn into_section_mut(self) -> file::SectionMut<'borrow, 'event> {
+        self.section
+    }
+}