Fix string stream crashing when created on nimscript due to last fix (#…

…19717)
nim-lang · Apr 14, 2022 · dc4cc2d · dc4cc2d
1 parent ef7d7f2
commit dc4cc2d
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/lib/pure/streams.nim b/lib/pure/streams.nim
@@ -1274,7 +1274,7 @@ else: # after 1.3 or JS not defined
 
     new(result)
     result.data = s
-    when defined(gcOrc) or defined(gcArc):
+    when declared(prepareMutation):
       prepareMutation(result.data) # Allows us to mutate using `addr` logic like `copyMem`, otherwise it errors.
     result.pos = 0
     result.closeImpl = ssClose

diff --git a/tests/stdlib/tstreams.nim b/tests/stdlib/tstreams.nim
@@ -76,3 +76,7 @@ block:
   doAssert(ss.getPosition == 5) # haven't moved
   ss.setPosition(0) # Ensure we dont error with writing over literals on arc/orc #19707
   ss.write("hello")
+
+static: # Ensure streams it doesnt break with nimscript on arc/orc #19716
+  let s = newStringStream("a")
+  discard s.data