Ruby

The following code raises "Test can't be coerced into Fixnum (TypeError)"

class Test attr_accessor :value def initialize(value) @value = value end def |(other) case(other) when Test @value | other.value else @value | other end end def coerce(other) [Test.new(other), self] end end 1 | Test.new(2) 

whereas the following works fine

class Test attr_accessor :value def initialize(value) @value = value end def +(other) case(other) when Test @value + other.value else @value + other end end def coerce(other) [Test.new(other), self] end end 1 + Test.new(2) 

It looks to me that the implementation of bit_coerce in numeric.c is not correct:

static int bit_coerce(VALUE *x, VALUE *y) { if (!RB_INTEGER_TYPE_P(*y)) { VALUE orig = *x; do_coerce(x, y, TRUE); if (!RB_INTEGER_TYPE_P(*x) && !RB_INTEGER_TYPE_P(*y)) { coerce_failed(orig, *y); } } return TRUE; } 

My feeling is that it should be fine for the coerce method to return something else than integers, as long as the bit operator is implemented on the first element of the array.
For instance, in my case, it returns two Test instances and the operator '|' is correctly defined on Test instances. It should try this operator.

Regards,

Lionel