From 448ed913137a0a6097f6f170c3827da6a85dd6a2 Mon Sep 17 00:00:00 2001
From: flywind <xzsflywind@gmail.com>
Date: Mon, 14 Feb 2022 21:36:01 +0800
Subject: [PATCH] [testcase] genSym fails to make unique identifier for ref
 object types (#19506)

close #15118
---
 tests/macros/tmacros_various.nim | 60 ++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/tests/macros/tmacros_various.nim b/tests/macros/tmacros_various.nim
index 00d74cb5c97a9..d702db56a819e 100644
--- a/tests/macros/tmacros_various.nim
+++ b/tests/macros/tmacros_various.nim
@@ -23,6 +23,8 @@ x: some string
 ([("key", "val"), ("keyB", "2")], [("val", "key"), ("2", "keyB")])
 ([("key", "val"), ("keyB", "2")], [("val", "key"), ("2", "keyB")])
 0
+0
+0
 '''
 """
 
@@ -270,3 +272,61 @@ block: # bug #13511
 
     debugAst:
       add(foo(), component)
+
+block: # bug #15118
+  macro flop(name: static string) =
+    let id = genSym(nskType, "env")
+    let r =
+      nnkStmtList.newTree(
+        nnkTypeSection.newTree(
+          nnkTypeDef.newTree(
+            id,
+            newEmptyNode(),
+            nnkRefTy.newTree(
+              nnkObjectTy.newTree(
+                newEmptyNode(),
+                newEmptyNode(),
+                nnkRecList.newTree(
+                  nnkIdentDefs.newTree(
+                    newIdentNode(name),
+                    newIdentNode("int"),
+                    newEmptyNode()
+                  )
+                )
+              ) 
+            )
+          )
+        ),
+
+        # var f: T
+  
+        nnkVarSection.newTree(
+          nnkIdentDefs.newTree(
+            newIdentNode("f"),
+            id,
+            newEmptyNode()
+          )
+        ),
+
+        # echo f.a
+        nnkCommand.newTree(
+          newIdentNode("new"),
+          newIdentNode("f")
+        ),
+
+        nnkCommand.newTree(
+          newIdentNode("echo"),
+          nnkDotExpr.newTree(
+            newIdentNode("f"),
+            newIdentNode(name)
+          )
+        )
+      )
+    r
+
+
+  block:
+    flop("a")
+
+  block:
+    flop("b")