Add issue 54 Nim regression

.github/workflows/nim.yml

@@ -23,10 +23,10 @@ jobs:
     - name: Install dependencies
       run: nimble install -y bumpy chroma vmath
     - name: Build test DLL
-      run: nim c --mm:arc --app:lib -d:gennyNim -o:tests/generated/libtest.so tests/test.nim
+      run: nim c -d:release --mm:arc --app:lib -d:gennyNim -o:tests/generated/libtest.so tests/test.nim
     - name: Run Nim-C-Nim sandwich test
       run: |
-        nim c --mm:arc -o:tests/generated/test_nim tests/test_nim.nim
+        nim c -d:release --mm:arc -o:tests/generated/test_nim tests/test_nim.nim
         cd tests/generated && LD_LIBRARY_PATH=. ./test_nim
     - name: Build Pixie bindings
       run: cd ../pixie && nim c --mm:arc --app:lib -d:gennyNim --path:../genny/src --path:src -o:bindings/generated/libpixie.so bindings/bindings.nim

tests/test_nim.nim

@@ -30,6 +30,18 @@ block:
   doAssert refObj.simpleRefB == 50, "simpleRefB should be 50"
   refObj.doit()
 
+echo "Testing issue #54 ref object method lifetime"
+proc issue54CrashAfterAccess() =
+  var s2 = newSimpleRefObj()
+  s2.simpleRefA = 3
+  doAssert s2.simpleRefA == 3, "simpleRefA should first be 3"
+  s2.simpleRefA = 8
+  doAssert s2.simpleRefA == 8, "simpleRefA should update to 8"
+  s2.doit()
+
+issue54CrashAfterAccess()
+doAssert simpleCall(42) == 42, "execution should continue after issue #54 regression"
+
 echo "Testing SeqInt"
 block:
   let seqInt = newSeqInt()