1 files changed, 74 insertions, 0 deletions
diff --git a/third_party/rust/fluent-bundle/src/args.rs b/third_party/rust/fluent-bundle/src/args.rs
new file mode 100644
index 0000000000..368d70e4ed
--- /dev/null
+++ b/third_party/rust/fluent-bundle/src/args.rs
@@ -0,0 +1,74 @@
+use std::borrow::Cow;
+use std::iter::FromIterator;
+
+use crate::types::FluentValue;
+
+/// A map of arguments passed from the code to
+/// the localization to be used for message
+/// formatting.
+#[derive(Debug, Default)]
+pub struct FluentArgs<'args>(Vec<(Cow<'args, str>, FluentValue<'args>)>);
+
+impl<'args> FluentArgs<'args> {
+    pub fn new() -> Self {
+        Self(vec![])
+    }
+
+    pub fn with_capacity(capacity: usize) -> Self {
+        Self(Vec::with_capacity(capacity))
+    }
+
+    pub fn get(&self, key: &str) -> Option<&FluentValue<'args>> {
+        self.0.iter().find(|(k, _)| key == *k).map(|(_, v)| v)
+    }
+
+    pub fn add<K>(&mut self, key: K, value: FluentValue<'args>)
+    where
+        K: Into<Cow<'args, str>>,
+    {
+        self.0.push((key.into(), value));
+    }
+
+    pub fn iter(&self) -> impl Iterator<Item = (&str, &FluentValue)> {
+        self.0.iter().map(|(k, v)| (k.as_ref(), v))
+    }
+}
+
+impl<'args> FromIterator<(&'args str, FluentValue<'args>)> for FluentArgs<'args> {
+    fn from_iter<I>(iter: I) -> Self
+    where
+        I: IntoIterator<Item = (&'args str, FluentValue<'args>)>,
+    {
+        let mut c = FluentArgs::new();
+
+        for (k, v) in iter {
+            c.add(k, v);
+        }
+
+        c
+    }
+}
+
+impl<'args> FromIterator<(String, FluentValue<'args>)> for FluentArgs<'args> {
+    fn from_iter<I>(iter: I) -> Self
+    where
+        I: IntoIterator<Item = (String, FluentValue<'args>)>,
+    {
+        let mut c = FluentArgs::new();
+
+        for (k, v) in iter {
+            c.add(k, v);
+        }
+
+        c
+    }
+}
+
+impl<'args> IntoIterator for FluentArgs<'args> {
+    type Item = (Cow<'args, str>, FluentValue<'args>);
+    type IntoIter = std::vec::IntoIter<Self::Item>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        self.0.into_iter()
+    }
+}