From fac248bbf314e8a03eb793df6ff0166867f2b60d Mon Sep 17 00:00:00 2001
From: lsgunnlsgunn <lisa.s.gunn@gmail.com>
Date: Wed, 3 Jun 2020 15:48:25 -0700
Subject: [PATCH 1/2] Add Rust counter program and tutorial with tabs

---
 .../pages/tutorials/counter-tutorial.adoc         | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/modules/developers-guide/pages/tutorials/counter-tutorial.adoc b/modules/developers-guide/pages/tutorials/counter-tutorial.adoc
index 97a4a5662..8b33dcc9d 100644
--- a/modules/developers-guide/pages/tutorials/counter-tutorial.adoc
+++ b/modules/developers-guide/pages/tutorials/counter-tutorial.adoc
@@ -149,12 +149,23 @@ To modify the default template source code:
 cd src/increment_counter
 ----
 . Open the template `+main.mo+` file in a text editor and delete the existing content.
-. Copy and paste the following sample code into the `+main.mo+` file:
+. Click the link to the programming language you want to use, then copy and paste the sample code into the main program file:
 +
-[source,motoko]
+[tabs]
+====
+Motoko::
++
+[source,motoko,indent=0]
 ----
 include::example$counter.mo[]
 ----
+Rust::
++
+[source,rust]
+----
+include::example$lib.rs[]
+----
+====
 . Save your changes and close the file to continue.
 
 == Build and deploy the program

From 8970e0fb51e67034fa8057d3e1f785011b1051cf Mon Sep 17 00:00:00 2001
From: lsgunnlsgunn <lisa.s.gunn@gmail.com>
Date: Thu, 4 Jun 2020 13:34:41 -0700
Subject: [PATCH 2/2] Add main Rust counter program to examples

---
 modules/developers-guide/examples/lib.rs | 27 ++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 modules/developers-guide/examples/lib.rs

diff --git a/modules/developers-guide/examples/lib.rs b/modules/developers-guide/examples/lib.rs
new file mode 100644
index 000000000..5f9358b66
--- /dev/null
+++ b/modules/developers-guide/examples/lib.rs
@@ -0,0 +1,27 @@
+use ic_cdk_macros::*;
+
+static mut COUNTER: u32 = 0;
+
+#[query]
+fn read() -> u32 {
+    unsafe {
+        ic_cdk::print(format!("read {}", COUNTER));
+        COUNTER
+    }
+}
+
+#[update]
+fn inc() -> () {
+    unsafe {
+        ic_cdk::print(format!("inc {} + 1", COUNTER));
+        COUNTER = COUNTER + 1;
+    }
+}
+
+#[update]
+fn write(input: u32) -> () {
+    unsafe {
+        ic_cdk::print(format!("write {} := {}", COUNTER, input));
+        COUNTER = input;
+    }
+}