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| author | Araq <rumpf_a@web.de> | 2019-08-12 14:06:48 +0200 |
|---|---|---|
| committer | Araq <rumpf_a@web.de> | 2019-08-12 14:06:48 +0200 |
| commit | 322ce1872fd13e7b3029db800727ecdc886ad8a3 (patch) | |
| tree | c5a88619eb47302b8e700a99144eca65c67a80cb /compiler | |
| parent | 289b5e9ef93cd350e75f4d90d264e56df64c5a8d (diff) | |
| download | Nim-322ce1872fd13e7b3029db800727ecdc886ad8a3.tar.gz | |
fixes #10689
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) |