From b409569b6f8bdeeb31c24d311daff3cd084d5ce9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thorbj=C3=B8rn=20Lindeijer?= <bjorn@lindeijer.nl>
Date: Fri, 27 Mar 2015 22:59:58 +0100
Subject: [PATCH] Added Sequence.list

This helper method turns any sequence into a List.
---
 builtin/core.wren               |  8 ++++++++
 doc/site/core/sequence.markdown |  7 +++++++
 src/vm/wren_core.c              |  8 ++++++++
 test/core/sequence/list.wren    | 11 +++++++++++
 4 files changed, 34 insertions(+)
 create mode 100644 test/core/sequence/list.wren

diff --git a/builtin/core.wren b/builtin/core.wren
index 156f507f..bb8a7b6f 100644
--- a/builtin/core.wren
+++ b/builtin/core.wren
@@ -90,6 +90,14 @@ class Sequence {
 
     return result
   }
+
+  list {
+    var result = new List
+    for (element in this) {
+      result.add(element)
+    }
+    return result
+  }
 }
 
 class String is Sequence {}
diff --git a/doc/site/core/sequence.markdown b/doc/site/core/sequence.markdown
index 526b3fd4..807e6c84 100644
--- a/doc/site/core/sequence.markdown
+++ b/doc/site/core/sequence.markdown
@@ -65,6 +65,13 @@ It is a runtime error if `sep` is not a string.
 
 Calls `join` with the empty string as the separator.
 
+### **list**
+
+Creates a [list](list.html) containing all the elements in the sequence.
+
+    :::dart
+    (1..3).list  // [1, 2, 3]
+
 ### **map**(transformation)
 
 Creates a new list by applying `transformation` to each element in the
diff --git a/src/vm/wren_core.c b/src/vm/wren_core.c
index fdd0cf6b..4595a294 100644
--- a/src/vm/wren_core.c
+++ b/src/vm/wren_core.c
@@ -136,6 +136,14 @@ static const char* libSource =
 "\n"
 "    return result\n"
 "  }\n"
+"\n"
+"  list {\n"
+"    var result = new List\n"
+"    for (element in this) {\n"
+"      result.add(element)\n"
+"    }\n"
+"    return result\n"
+"  }\n"
 "}\n"
 "\n"
 "class String is Sequence {}\n"
diff --git a/test/core/sequence/list.wren b/test/core/sequence/list.wren
new file mode 100644
index 00000000..bc44784d
--- /dev/null
+++ b/test/core/sequence/list.wren
@@ -0,0 +1,11 @@
+class TestSequence is Sequence {
+  iterate(iterator) {
+    if (iterator == null) return 1
+    if (iterator == 3) return false
+    return iterator + 1
+  }
+
+  iteratorValue(iterator) { iterator }
+}
+
+IO.print((new TestSequence).list) // expect: [1, 2, 3]