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https://github.com/nim-lang/Nim.git
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749dbce4c6
* merge magics * merge metatype tests * merge method tests * merge objects tests * change `import future` to `import sugar` Nim in Action tests are left with `import future`, to ensure compatibility. * merge overload tests * merge proc tests * merge procvar tests * merge range tests * merge seq tests * merge sets tests * remove wrong assert from `tsets3` * fix `jsTests` * better fix
72 lines
1.1 KiB
Nim
72 lines
1.1 KiB
Nim
discard """
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output: '''
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7
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Hi derived!
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hello
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'''
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"""
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# tmultim1
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type
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Expression = ref object {.inheritable.}
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Literal = ref object of Expression
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x: int
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PlusExpr = ref object of Expression
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a, b: Expression
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method eval(e: Expression): int {.base.} = quit "to override!"
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method eval(e: Literal): int = return e.x
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method eval(e: PlusExpr): int = return eval(e.a) + eval(e.b)
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proc newLit(x: int): Literal =
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new(result)
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result.x = x
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proc newPlus(a, b: Expression): PlusExpr =
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new(result)
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result.a = a
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result.b = b
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echo eval(newPlus(newPlus(newLit(1), newLit(2)), newLit(4))) #OUT 7
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# tmultim3
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import mmultim3
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type TBObj* = object of TObj
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method test123(a : ref TBObj) =
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echo("Hi derived!")
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var aa: ref TBObj
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new(aa)
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myObj = aa
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testMyObj()
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# tmultim4
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type Test = object of RootObj
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method doMethod(a: ref RootObj) {.base, raises: [IoError].} =
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quit "override"
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method doMethod(a: ref Test) =
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echo "hello"
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if a == nil:
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raise newException(IoError, "arg")
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proc doProc(a: ref Test) =
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echo "hello"
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proc newTest(): ref Test =
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new(result)
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var s:ref Test = newTest()
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#doesn't work
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for z in 1..4:
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s.doMethod()
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break |