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-rw-r--r--futures/src/command.rs70
1 files changed, 0 insertions, 70 deletions
diff --git a/futures/src/command.rs b/futures/src/command.rs
deleted file mode 100644
index 3d1ec3f9..00000000
--- a/futures/src/command.rs
+++ /dev/null
@@ -1,70 +0,0 @@
-/// A set of asynchronous actions to be performed by some runtime.
-#[must_use = "`Command` must be returned to runtime to take effect"]
-#[derive(Debug)]
-pub struct Command<T>(Internal<T>);
-
-#[derive(Debug)]
-enum Internal<T> {
- None,
- Single(T),
- Batch(Vec<T>),
-}
-
-impl<T> Command<T> {
- /// Creates an empty [`Command`].
- ///
- /// In other words, a [`Command`] that does nothing.
- pub const fn none() -> Self {
- Self(Internal::None)
- }
-
- /// Creates a [`Command`] that performs a single action.
- pub const fn single(action: T) -> Self {
- Self(Internal::Single(action))
- }
-
- /// Creates a [`Command`] that performs the actions of all the given
- /// commands.
- ///
- /// Once this command is run, all the commands will be executed at once.
- pub fn batch(commands: impl IntoIterator<Item = Command<T>>) -> Self {
- let mut batch = Vec::new();
-
- for Command(command) in commands {
- match command {
- Internal::None => {}
- Internal::Single(command) => batch.push(command),
- Internal::Batch(commands) => batch.extend(commands),
- }
- }
-
- Self(Internal::Batch(batch))
- }
-
- /// Applies a transformation to the result of a [`Command`].
- pub fn map<A>(self, f: impl Fn(T) -> A) -> Command<A>
- where
- T: 'static,
- {
- let Command(command) = self;
-
- match command {
- Internal::None => Command::none(),
- Internal::Single(action) => Command::single(f(action)),
- Internal::Batch(batch) => {
- Command(Internal::Batch(batch.into_iter().map(f).collect()))
- }
- }
- }
-
- /// Returns all of the actions of the [`Command`].
- pub fn actions(self) -> Vec<T> {
- let Command(command) = self;
-
- match command {
- Internal::None => Vec::new(),
- Internal::Single(action) => vec![action],
- Internal::Batch(batch) => batch,
- }
- }
-}