From 59023d2a8877a3fc5fad700deb40373b5fc8f0a9 Mon Sep 17 00:00:00 2001
From: Richard Feldman <oss@rtfeldman.com>
Date: Thu, 5 May 2022 16:18:38 -0400
Subject: [PATCH] Add VecSet::insert_all

---
 compiler/collections/src/vec_set.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/compiler/collections/src/vec_set.rs b/compiler/collections/src/vec_set.rs
index 09730f7e95..d139272e89 100644
--- a/compiler/collections/src/vec_set.rs
+++ b/compiler/collections/src/vec_set.rs
@@ -40,6 +40,17 @@ impl<T: PartialEq> VecSet<T> {
         }
     }
 
+    /// Returns true iff any of the given elements previoously existed in the set.
+    pub fn insert_all<I: Iterator<Item = T>>(&mut self, values: I) -> bool {
+        let mut any_existed = false;
+
+        for value in values {
+            any_existed = any_existed || self.insert(value);
+        }
+
+        any_existed
+    }
+
     pub fn contains(&self, value: &T) -> bool {
         self.elements.contains(value)
     }