From 9a8f2edda45ff26f90f1b5252338fb6b9cf4dcf7 Mon Sep 17 00:00:00 2001
From: Bob Nystrom <robert@stuffwithstuff.com>
Date: Sun, 6 Apr 2014 08:37:37 -0700
Subject: [PATCH] List.addAll().

---
 builtin/core.wren      |  7 +++++++
 src/wren_core.c        |  7 +++++++
 test/list/add.wren     |  4 +---
 test/list/add_all.wren | 11 +++++++++++
 4 files changed, 26 insertions(+), 3 deletions(-)
 create mode 100644 test/list/add_all.wren

diff --git a/builtin/core.wren b/builtin/core.wren
index bdc5c188..8031f8fe 100644
--- a/builtin/core.wren
+++ b/builtin/core.wren
@@ -17,6 +17,13 @@ class Sequence {
 }
 
 class List is Sequence {
+  addAll(other) {
+    for (element in other) {
+      add(element)
+    }
+    return other
+  }
+
   toString {
     var result = "["
     for (i in 0...count) {
diff --git a/src/wren_core.c b/src/wren_core.c
index 996c4d0f..a1ce4080 100644
--- a/src/wren_core.c
+++ b/src/wren_core.c
@@ -60,6 +60,13 @@ static const char* libSource =
 "}\n"
 "\n"
 "class List is Sequence {\n"
+"  addAll(other) {\n"
+"    for (element in other) {\n"
+"      add(element)\n"
+"    }\n"
+"    return other\n"
+"  }\n"
+"\n"
 "  toString {\n"
 "    var result = \"[\"\n"
 "    for (i in 0...count) {\n"
diff --git a/test/list/add.wren b/test/list/add.wren
index a9785246..33025499 100644
--- a/test/list/add.wren
+++ b/test/list/add.wren
@@ -1,6 +1,4 @@
-var a = []
-a.add(1)
-IO.print(a) // expect: [1]
+var a = [1]
 a.add(2)
 IO.print(a) // expect: [1, 2]
 a.add(3)
diff --git a/test/list/add_all.wren b/test/list/add_all.wren
new file mode 100644
index 00000000..1d79b852
--- /dev/null
+++ b/test/list/add_all.wren
@@ -0,0 +1,11 @@
+var a = [1]
+a.addAll([2, 3])
+IO.print(a) // expect: [1, 2, 3]
+a.addAll([])
+IO.print(a) // expect: [1, 2, 3]
+a.addAll(4..6)
+IO.print(a) // expect: [1, 2, 3, 4, 5, 6]
+
+// Returns argument.
+var range = 7..9
+IO.print(a.addAll(range) == range) // expect: true