Adding upstream version 110.0.1.upstream/110.0.1upstream

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

1 files changed, 166 insertions, 0 deletions

diff --git a/third_party/rust/toml/src/spanned.rs b/third_party/rust/toml/src/spanned.rs
new file mode 100644
index 0000000000..f90c5492d9
--- /dev/null
+++ b/third_party/rust/toml/src/spanned.rs
@@ -0,0 +1,166 @@
+use serde::{de, ser};
+use std::borrow::Borrow;
+use std::cmp::Ordering;
+use std::fmt;
+use std::hash::{Hash, Hasher};
+
+pub(crate) const NAME: &str = "$__toml_private_Spanned";
+pub(crate) const START: &str = "$__toml_private_start";
+pub(crate) const END: &str = "$__toml_private_end";
+pub(crate) const VALUE: &str = "$__toml_private_value";
+
+/// A spanned value, indicating the range at which it is defined in the source.
+///
+/// ```
+/// use serde_derive::Deserialize;
+/// use toml::Spanned;
+///
+/// #[derive(Deserialize)]
+/// struct Value {
+///     s: Spanned<String>,
+/// }
+///
+/// let t = "s = \"value\"\n";
+///
+/// let u: Value = toml::from_str(t).unwrap();
+///
+/// assert_eq!(u.s.start(), 4);
+/// assert_eq!(u.s.end(), 11);
+/// assert_eq!(u.s.get_ref(), "value");
+/// assert_eq!(u.s.into_inner(), String::from("value"));
+/// ```
+#[derive(Clone, Debug)]
+pub struct Spanned<T> {
+    /// The start range.
+    start: usize,
+    /// The end range (exclusive).
+    end: usize,
+    /// The spanned value.
+    value: T,
+}
+
+impl<T> Spanned<T> {
+    /// Access the start of the span of the contained value.
+    pub fn start(&self) -> usize {
+        self.start
+    }
+
+    /// Access the end of the span of the contained value.
+    pub fn end(&self) -> usize {
+        self.end
+    }
+
+    /// Get the span of the contained value.
+    pub fn span(&self) -> (usize, usize) {
+        (self.start, self.end)
+    }
+
+    /// Consumes the spanned value and returns the contained value.
+    pub fn into_inner(self) -> T {
+        self.value
+    }
+
+    /// Returns a reference to the contained value.
+    pub fn get_ref(&self) -> &T {
+        &self.value
+    }
+
+    /// Returns a mutable reference to the contained value.
+    pub fn get_mut(&mut self) -> &mut T {
+        &mut self.value
+    }
+}
+
+impl Borrow<str> for Spanned<String> {
+    fn borrow(&self) -> &str {
+        self.get_ref()
+    }
+}
+
+impl<T: PartialEq> PartialEq for Spanned<T> {
+    fn eq(&self, other: &Self) -> bool {
+        self.value.eq(&other.value)
+    }
+}
+
+impl<T: Eq> Eq for Spanned<T> {}
+
+impl<T: Hash> Hash for Spanned<T> {
+    fn hash<H: Hasher>(&self, state: &mut H) {
+        self.value.hash(state);
+    }
+}
+
+impl<T: PartialOrd> PartialOrd for Spanned<T> {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        self.value.partial_cmp(&other.value)
+    }
+}
+
+impl<T: Ord> Ord for Spanned<T> {
+    fn cmp(&self, other: &Self) -> Ordering {
+        self.value.cmp(&other.value)
+    }
+}
+
+impl<'de, T> de::Deserialize<'de> for Spanned<T>
+where
+    T: de::Deserialize<'de>,
+{
+    fn deserialize<D>(deserializer: D) -> Result<Spanned<T>, D::Error>
+    where
+        D: de::Deserializer<'de>,
+    {
+        struct SpannedVisitor<T>(::std::marker::PhantomData<T>);
+
+        impl<'de, T> de::Visitor<'de> for SpannedVisitor<T>
+        where
+            T: de::Deserialize<'de>,
+        {
+            type Value = Spanned<T>;
+
+            fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
+                formatter.write_str("a TOML spanned")
+            }
+
+            fn visit_map<V>(self, mut visitor: V) -> Result<Spanned<T>, V::Error>
+            where
+                V: de::MapAccess<'de>,
+            {
+                if visitor.next_key()? != Some(START) {
+                    return Err(de::Error::custom("spanned start key not found"));
+                }
+
+                let start: usize = visitor.next_value()?;
+
+                if visitor.next_key()? != Some(END) {
+                    return Err(de::Error::custom("spanned end key not found"));
+                }
+
+                let end: usize = visitor.next_value()?;
+
+                if visitor.next_key()? != Some(VALUE) {
+                    return Err(de::Error::custom("spanned value key not found"));
+                }
+
+                let value: T = visitor.next_value()?;
+
+                Ok(Spanned { start, end, value })
+            }
+        }
+
+        let visitor = SpannedVisitor(::std::marker::PhantomData);
+
+        static FIELDS: [&str; 3] = [START, END, VALUE];
+        deserializer.deserialize_struct(NAME, &FIELDS, visitor)
+    }
+}
+
+impl<T: ser::Serialize> ser::Serialize for Spanned<T> {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: ser::Serializer,
+    {
+        self.value.serialize(serializer)
+    }
+}