在下面的Ruby代码中,@代表什么:
module TestRocket
extend Module.new { attr_accessor :out }
def _test(a, b); send((call rescue()) ? a : b); end
def +@; _show _test :_pass, :_fail end
def -@; _show _test :_fail, :_pass end
def ~@; _show _pend; end
def !@; _show _desc; end
def _show(r); (TestRocket.out || $>) << r; r end
def _pass; " OK\n"; end
def _fail; " FAIL @ #{source_location * ':'}\n"; end
def _pend; "PENDING '#{call}' @ #{source_location * ':'}\n"; end
def _desc; " FIRE '#{call}'!\n"; end
end
Proc.send :include, TestRocket
然后将其用作:
+-> { Die.new(2) }
--> { raise }
+-> { 2 + 2 == 4 }
函数名中的@是如何变成'->‘的?
https://stackoverflow.com/questions/7816444
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