diff options
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/injectdestructors.nim | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/compiler/injectdestructors.nim b/compiler/injectdestructors.nim index 4f96d236f..87f09da59 100644 --- a/compiler/injectdestructors.nim +++ b/compiler/injectdestructors.nim @@ -796,7 +796,11 @@ proc p(n: PNode; c: var Con): PNode = result = n of nkAsgn, nkFastAsgn: if hasDestructor(n[0].typ) and n[1].kind notin {nkProcDef, nkDo, nkLambda}: - result = moveOrCopy(n[0], n[1], c) + # rule (self-assignment-removal): + if n[1].kind == nkSym and n[0].kind == nkSym and n[0].sym == n[1].sym: + result = newNodeI(nkEmpty, n.info) + else: + result = moveOrCopy(n[0], n[1], c) else: result = copyNode(n) recurse(n, result) |