init

test/fixtures/valid/containers.ls

@@ -0,0 +1,19 @@
+numbers := [1, 2, 3]
+more_numbers := [0, ...numbers, 4]
+
+codes := ['ok' => 200, 'missing' => 404]
+more_codes := [...codes, 'failed' => 500]
+
+empty_numbers: []i32: []
+empty_codes: [str]i32: []
+optional_numbers: []i32?: nil
+optional_elements: []{i32?}: [nil, 1->|.some]
+
+Options :: &{
+    name: str: 'default'
+    count: i32 = 0
+}
+
+defaults := &Options.{}
+overridden := &Options.{ ...defaults; count = 2 }
+anonymous := &.{ label: 'value'; count = 1 }