Add example for resuming effects

2 files changed, 30 insertions, 0 deletions

diff --git a/examples/21-effect-resume/shed.toml b/examples/21-effect-resume/shed.toml
new file mode 100644
index 00000000..bf5c13c4
--- /dev/null
+++ b/examples/21-effect-resume/shed.toml
@@ -0,0 +1,7 @@
+[[shed.bins]]
+name = "hello-world"
+main-namespace = "HelloWorld"
+
+[[shed.examples]]
+bin = "hello-world"
+expected-output = "hello, world"
diff --git a/examples/21-effect-resume/src/HelloWorld.shed b/examples/21-effect-resume/src/HelloWorld.shed
new file mode 100644
index 00000000..a5e96e2f
--- /dev/null
+++ b/examples/21-effect-resume/src/HelloWorld.shed
@@ -0,0 +1,23 @@
+effect Writer {
+    fun hello() -> Unit;
+    fun world() -> Unit;
+}
+
+pub fun main() ! Io -> Unit {
+    try {
+        Writer.hello!();
+        print!(", ");
+        Writer.world!();
+        print!("\n");
+    } handle Writer {
+        fun hello() {
+            print!("hello");
+            resume;
+        }
+
+        fun world() {
+            print!("world");
+            resume;
+        }
+    }
+}