1 files changed, 0 insertions, 72 deletions
diff --git a/ecs/src/extension.rs b/ecs/src/extension.rs
deleted file mode 100644
index 9c6614b..0000000
--- a/ecs/src/extension.rs
+++ /dev/null
@@ -1,72 +0,0 @@
-use crate::component::Sequence as ComponentSequence;
-use crate::entity::Declaration as EntityDeclaration;
-use crate::sole::Sole;
-use crate::system::observer::Observer;
-use crate::system::System;
-use crate::uid::Uid;
-use crate::{SoleAlreadyExistsError, World};
-
-/// A collection of systems, entities & soles that can be added to a [`World`].
-pub trait Extension
-{
-    fn collect(self, collector: Collector<'_>);
-}
-
-/// Passed to a [`Extension`] to collects it's systems, entities & soles.
-pub struct Collector<'world>
-{
-    world: &'world mut World,
-}
-
-impl<'world> Collector<'world>
-{
-    /// Returns a new `Collector` for the given [`World`].
-    pub fn new(world: &'world mut World) -> Self
-    {
-        Self { world }
-    }
-
-    /// Adds a system to the [`World`].
-    pub fn add_system<'this, SystemImpl>(
-        &'this mut self,
-        phase_euid: Uid,
-        system: impl System<'this, SystemImpl>,
-    )
-    {
-        self.world.register_system(phase_euid, system);
-    }
-
-    /// Adds a observer system to the [`World`].
-    pub fn add_observer<'this, SystemImpl>(
-        &'this mut self,
-        observer: impl Observer<'this, SystemImpl>,
-    )
-    {
-        self.world.register_observer(observer);
-    }
-
-    /// Adds a entity to the [`World`].
-    pub fn add_entity<Comps>(&mut self, components: Comps)
-    where
-        Comps: ComponentSequence,
-    {
-        self.world.create_entity(components);
-    }
-
-    /// Adds a declared entity to the [`World`].
-    pub fn add_declared_entity(&mut self, entity_decl: &EntityDeclaration)
-    {
-        self.world.create_declared_entity(entity_decl);
-    }
-
-    /// Adds a globally shared singleton value to the [`World`].
-    ///
-    /// # Errors
-    /// Returns `Err` if this [`Sole`] has already been added.
-    pub fn add_sole<SoleT>(&mut self, sole: SoleT) -> Result<(), SoleAlreadyExistsError>
-    where
-        SoleT: Sole,
-    {
-        self.world.add_sole(sole)
-    }
-}