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b421d0f8ee
fixes #19728 don't zero-filling memory for "trivial types" without destructor in refc. I tested locally with internal apis.
67 lines
1.1 KiB
Nim
67 lines
1.1 KiB
Nim
discard """
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matrix: "--mm:refc; --mm:orc"
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targets: "c cpp js"
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"""
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import std/assertions
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# bug #20227
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type
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Data = object
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id: int
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Test = distinct Data
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Object = object
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data: Test
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var x: Object = Object(data: Test(Data(id: 12)))
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doAssert Data(x.data).id == 12
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block: # bug #16771
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type A = object
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n: int
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proc foo(a, b: var A) =
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swap a, b
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var a, b: A
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a.n = 42
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b.n = 1
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doAssert a.n == 42
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doAssert b.n == 1
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a.swap b
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doAssert a.n == 1
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doAssert b.n == 42
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a.foo b
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doAssert a.n == 42
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doAssert b.n == 1
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block: # bug #24683
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block:
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var v = newSeq[int](100)
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v[99]= 444
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v.setLen(5)
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v.setLen(100)
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doAssert v[99] == 0
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when not defined(js):
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block:
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var
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x = @[1, 2, 3, 4, 45, 56, 67, 999, 88, 777]
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x.setLen(0) # zero-fills 1mb of released data
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type
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TGenericSeq = object
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len, reserved: int
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PGenericSeq = ptr TGenericSeq
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when defined(gcRefc):
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cast[PGenericSeq](x).len = 10
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else:
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cast[ptr int](addr x)[] = 10
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doAssert x == @[1, 2, 3, 4, 45, 56, 67, 999, 88, 777]
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