Support singleton structs

1 files changed, 17 insertions, 0 deletions

diff --git a/examples/03-sum/src/shapes.hob b/examples/03-sum/src/shapes.hob
new file mode 100644
index 0000000..03a727a
--- /dev/null
+++ b/examples/03-sum/src/shapes.hob
@@ -0,0 +1,17 @@
+/// A 2D shape.
+sum Shape {
+    variant Rectangle;
+    variant Triangle;
+
+    field width: Int32;
+}
+
+struct Rectangle {
+    field width: Int32;
+    field height: Int32;
+}
+
+struct Triangle {
+    field width: Int32;
+    field height: Int32;
+}