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40 lines
615 B
Nim
40 lines
615 B
Nim
discard """
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file: "toprprec.nim"
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output: "done"
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"""
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# Test operator precedence:
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template `@` (x: expr): expr {.immediate.} = self.x
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template `@!` (x: expr): expr {.immediate.} = x
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template `===` (x: expr): expr {.immediate.} = x
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type
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TO = object
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x: int
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TA = tuple[a, b: int, obj: TO]
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proc init(self: var TA): string =
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@a = 3
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=== @b = 4
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@obj.x = 4
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@! === result = "abc"
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result = @b.`$`
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assert 3+5*5-2 == 28- -26-28
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proc `^-` (x, y: int): int =
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# now right-associative!
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result = x - y
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assert 34 ^- 6 ^- 2 == 30
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assert 34 - 6 - 2 == 26
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var s: TA
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assert init(s) == "4"
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echo "done"
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