7739e23420* defaults to Orc * bootstrap using refc * use gc * init orc defines * unregister orc * fix gc * fix commands * add prepareMutation for orc * enable deepcopy for orc * prepareMutation * more fixes * some cases * bug #20081 * partial fixes * partial fixes * fixes command line * more fixes * build Nim with refc * use gc * more fixes * rstore * orc doesn't support threadpool * more shallowCopy * more fixes * fixes unsafeNew * workarounds * small * more fixes * fixes some megatest * tcodegenbugs1 refc * fxies megatest * build nimble with refc * workaround tensordsl tests * replace shallowCopy with move * fixes action * workaround * add todo * fixes important packages * unpublic unregisterArcOrc * fixes cpp * enable windows Co-authored-by: xflywind <43030857+xflywind@users.noreply.github.com>
54 lines
1.1 KiB
Nim
54 lines
1.1 KiB
Nim
discard """
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output: '''true'''
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"""
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# We need to open the gensym'ed symbol again so that the instantiation
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# creates a fresh copy; but this is wrong the very first reason for gensym
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# is that scope rules cannot be used! So simply removing 'sfGenSym' does
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# not work. Copying the symbol does not work either because we're already
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# the owner of the symbol! What we need to do is to copy the symbol
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# in the generic instantiation process...
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type
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TA = object
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x: int
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TB = object
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x: string
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template genImpl() =
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var gensymed: T
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when T is TB:
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gensymed.x = "abc"
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else:
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gensymed.x = 123
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result = move gensymed
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proc gen[T](x: T): T =
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genImpl()
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var
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a: TA
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b: TB
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let x = gen(a)
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let y = gen(b)
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doAssert x.x == 123
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doAssert y.x == "abc"
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# test symbol equality
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import macros
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static:
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let sym1 = genSym()
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let sym2 = genSym()
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let sym3 = sym1
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let nimsym = sym1.symbol
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doAssert sym1 == sym1
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doAssert sym2 != sym3
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doAssert sym2.symbol != sym3.symbol
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doAssert sym3 == sym1
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doAssert sym1.symbol == sym1.symbol
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doAssert nimsym == nimsym
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echo "true"
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