From 47c2eca7dceae9fb4e6f687f70273fb262fa07a2 Mon Sep 17 00:00:00 2001
From: Jan Tuomi <jans.tuomi@gmail.com>
Date: Fri, 9 Dec 2022 15:53:16 +0200
Subject: Add try! builtin

---
 examples/atom-concept.milch | 11 +++++++++++
 examples/try.milch          |  6 ++++++
 2 files changed, 17 insertions(+)
 create mode 100644 examples/atom-concept.milch
 create mode 100644 examples/try.milch

(limited to 'examples')

diff --git a/examples/atom-concept.milch b/examples/atom-concept.milch
new file mode 100644
index 0000000..4158b45
--- /dev/null
+++ b/examples/atom-concept.milch
@@ -0,0 +1,11 @@
+(let state (atom! 10))
+
+(let do-loop! (\![i n]
+    (match true
+        (lt? i n) (do (update! dec state)
+                      (do-loop! (inc i) n))
+        otherwise unit)))
+
+(do-loop! 0 5)
+(get! state)
+; => 5
diff --git a/examples/try.milch b/examples/try.milch
new file mode 100644
index 0000000..68d6cc2
--- /dev/null
+++ b/examples/try.milch
@@ -0,0 +1,6 @@
+(import "core/common")
+(import "core/result")
+
+; calls read-file! and wraps the result in a Result/ok on success
+; in case of error, calls Result/ex on the error string
+(try! Result/ex (. Result/ok read-file!) "does-not-exist.txt")
-- 
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