8 lines
229 B
Text
8 lines
229 B
Text
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macro inv(expr, cond)
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cond isa Expr && cond.head == :if || throw(ArgumentError("$cond is not an if expression"))
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cond.args[2] = expr
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return cond
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end
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@inv println("Wow! Lucky Guess!") if true else println("Not!") end
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