1 files changed, 53 insertions, 0 deletions
diff --git a/vendor/core-foundation/src/set.rs b/vendor/core-foundation/src/set.rs
new file mode 100644
index 000000000..eb1d357a0
--- /dev/null
+++ b/vendor/core-foundation/src/set.rs
@@ -0,0 +1,53 @@
+// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! An immutable bag of elements.
+
+pub use core_foundation_sys::set::*;
+use core_foundation_sys::base::{CFTypeRef, CFRelease, kCFAllocatorDefault};
+
+use base::{CFIndexConvertible, TCFType};
+
+use std::os::raw::c_void;
+use std::marker::PhantomData;
+
+/// An immutable bag of elements.
+pub struct CFSet<T = *const c_void>(CFSetRef, PhantomData<T>);
+
+impl<T> Drop for CFSet<T> {
+    fn drop(&mut self) {
+        unsafe { CFRelease(self.as_CFTypeRef()) }
+    }
+}
+
+impl_TCFType!(CFSet<T>, CFSetRef, CFSetGetTypeID);
+impl_CFTypeDescription!(CFSet);
+
+impl CFSet {
+    /// Creates a new set from a list of `CFType` instances.
+    pub fn from_slice<T>(elems: &[T]) -> CFSet<T> where T: TCFType {
+        unsafe {
+            let elems: Vec<CFTypeRef> = elems.iter().map(|elem| elem.as_CFTypeRef()).collect();
+            let set_ref = CFSetCreate(kCFAllocatorDefault,
+                                      elems.as_ptr(),
+                                      elems.len().to_CFIndex(),
+                                      &kCFTypeSetCallBacks);
+            TCFType::wrap_under_create_rule(set_ref)
+        }
+    }
+}
+
+impl<T> CFSet<T> {
+    /// Get the number of elements in the CFSet
+    pub fn len(&self) -> usize {
+        unsafe {
+            CFSetGetCount(self.0) as usize
+        }
+    }
+}