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https://github.com/nim-lang/Nim.git
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61145b1d4b
fixes #22354 It skips `nkHiddenAddr`. No need to hoist `var parameters` without side effects. Besides, it saves lots of temporary variables in ORC.
48 lines
954 B
Nim
48 lines
954 B
Nim
discard """
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targets: "c cpp"
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"""
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# bug #19094
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type
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X = object
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filler: array[2048, int]
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innerAddress: uint
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proc initX(): X =
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result.innerAddress = cast[uint](result.addr)
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proc initXInPlace(x: var X) =
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x.innerAddress = cast[uint](x.addr)
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block: # NRVO1
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var x = initX()
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let innerAddress = x.innerAddress
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let outerAddress = cast[uint](x.addr)
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doAssert(innerAddress == outerAddress) # [OK]
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block: # NRVO2
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var x: X
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initXInPlace(x)
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let innerAddress = x.innerAddress
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let outerAddress = cast[uint](x.addr)
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doAssert(innerAddress == outerAddress) # [OK]
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block: # bug #22354
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type Object = object
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foo: int
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proc takeFoo(self: var Object): int =
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result = self.foo
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self.foo = 999
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proc doSomething(self: var Object; foo: int = self.takeFoo()) =
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discard
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proc main() =
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var obj = Object(foo: 2)
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obj.doSomething()
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doAssert obj.foo == 999
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main()
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