From 251fec94ce07ae871e64ae66d4e552546321eb40 Mon Sep 17 00:00:00 2001
From: ringabout <43030857+ringabout@users.noreply.github.com>
Date: Thu, 23 Mar 2023 21:47:17 +0800
Subject: [PATCH] add some tests

---
 tests/spec/tobjectconstr_unamed.nim | 78 +++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 tests/spec/tobjectconstr_unamed.nim

diff --git a/tests/spec/tobjectconstr_unamed.nim b/tests/spec/tobjectconstr_unamed.nim
new file mode 100644
index 0000000000..1a9f41c426
--- /dev/null
+++ b/tests/spec/tobjectconstr_unamed.nim
@@ -0,0 +1,78 @@
+type
+  Vector = object
+    a: int = 999
+    b, c: int
+
+block: # positional construction
+  ## It specifies all the unnamed parameters
+  var x = Vector(1, 2, 3)
+  doAssert x.b == 2
+
+block:
+  ## unnamed parameters can be mixed with named parameters
+  block:
+    var x = Vector(a: 1, 2, 3)
+    doAssert x.c == 3
+
+  block:
+    var x = Vector(1, b: 2, 3)
+    doAssert x.c == 3
+
+  block:
+    var x = Vector(1, 2, c: 3)
+    doAssert x.c == 3
+
+  block:
+    ## Parameters can be omitted before a named parameter
+    var x = Vector(b: 2, 3)
+    doAssert x.c == 3
+
+
+block:
+  ## Object variants support unnamed parameters for tags, which should be known at the compile time.
+  type
+    Color = enum
+      Red, Blue, Yellow
+    Factor = object
+      id: int
+      case flag: Color
+      of Red:
+        num: int
+      of Blue, Yellow:
+        done: bool
+      name: string
+
+  block:
+    var x = Factor(1, Red, 2, "1314")
+    doAssert x.num == 2
+
+  block:
+    var x = Factor(1, Blue, true, "1314")
+    doAssert x.done == true
+
+  block:
+    var x = Factor(1, Yellow, false, "1314")
+    doAssert x.done == false
+
+
+  type
+    Ciao = object
+      id: int
+      case flag: bool = false
+      of true:
+        num: int
+      of false:
+        done: bool
+      name: string
+
+  block:
+    var x = Ciao(12, false, false, "123")
+    doAssert x.num == false
+
+  block:
+    var x = Ciao(12, flag: true, 1, "123")
+    doAssert x.num == 1
+
+  block:
+    var x = Ciao(flag: true, 1, "123")
+    doAssert x.num == 1