From 489b1ca00eaeee6daf14a02e0652ffa1f95da75a Mon Sep 17 00:00:00 2001
From: Stephen Chung <Stephen.Chung@intexact.com>
Date: Sat, 15 Aug 2020 00:08:00 +0800
Subject: [PATCH] Add Module::combine.

---
 RELEASES.md   |  1 +
 src/module.rs | 12 ++++++++++++
 2 files changed, 13 insertions(+)

diff --git a/RELEASES.md b/RELEASES.md
index fcf498cf..b753bba3 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -8,6 +8,7 @@ New features
 ------------
 
 * Adds `Engine::register_get_result`, `Engine::register_set_result`, `Engine::register_indexer_get_result`, `Engine::register_indexer_set_result` API.
+* Adds `Module::combine` to combine two modules.
 
 
 Version 0.18.1
diff --git a/src/module.rs b/src/module.rs
index dbb416a2..28c64ff0 100644
--- a/src/module.rs
+++ b/src/module.rs
@@ -928,6 +928,18 @@ impl Module {
         self.all_functions.get(&hash_qualified_fn)
     }
 
+    /// Combine another module into this module.
+    /// The other module is consumed to merge into this module.
+    pub fn combine(&mut self, other: Self) -> &mut Self {
+        self.variables.extend(other.variables.into_iter());
+        self.functions.extend(other.functions.into_iter());
+        self.type_iterators.extend(other.type_iterators.into_iter());
+        self.all_functions.clear();
+        self.all_variables.clear();
+        self.indexed = false;
+        self
+    }
+
     /// Merge another module into this module.
     pub fn merge(&mut self, other: &Self) -> &mut Self {
         self.merge_filtered(other, |_, _, _| true)