From a31d0ea6509c6e089f993b4a0657c5f9ef832124 Mon Sep 17 00:00:00 2001
From: Brendan Hansen <brendan.f.hansen@gmail.com>
Date: Thu, 25 Nov 2021 22:08:11 -0600
Subject: [PATCH] iter.enumerate is more friendly

---
 core/container/iter.onyx | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/core/container/iter.onyx b/core/container/iter.onyx
index c035c8d1..4a52400f 100644
--- a/core/container/iter.onyx
+++ b/core/container/iter.onyx
@@ -249,7 +249,14 @@ const :: (value: $T) -> Iterator(T) {
     value: T;
 }
 
-enumerate :: (it: Iterator($T), start_index: i32 = 0) -> Iterator(Enumeration_Value(T)) {
+enumerate :: #match {}
+#match enumerate macro (it: $T, start_index: i32 = 0) -> #auto where Iterable(T) {
+    as_iterator :: as_iterator
+    enumerate :: enumerate
+    return enumerate(as_iterator(it), start_index);
+}
+
+#match enumerate (it: Iterator($T), start_index: i32 = 0) -> Iterator(Enumeration_Value(T)) {
     Enumeration_Context :: struct (T: type_expr) {
         iterator:      Iterator(T);
         current_index: i32;
-- 
2.25.1