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require 'mspec/guards/platform'
class Object
def nan_value
0/0.0
end
def infinity_value
1/0.0
end
def bignum_value(plus=0)
0x8000_0000_0000_0000 + plus
end
# This is a bit hairy, but we need to be able to write specs that cover the
# boundary between Fixnum and Bignum for operations like Fixnum#<<. Since
# this boundary is implementation-dependent, we use these helpers to write
# specs based on the relationship between values rather than specific
# values.
if PlatformGuard.standard? or PlatformGuard.implementation? :topaz
if PlatformGuard.wordsize? 32
def fixnum_max
(2**30) - 1
end
def fixnum_min
-(2**30)
end
elsif PlatformGuard.wordsize? 64
def fixnum_max
(2**62) - 1
end
def fixnum_min
-(2**62)
end
end
elsif PlatformGuard.implementation? :opal
def fixnum_max
Integer::MAX
end
def fixnum_min
Integer::MIN
end
elsif PlatformGuard.implementation? :rubinius
def fixnum_max
Fixnum::MAX
end
def fixnum_min
Fixnum::MIN
end
elsif PlatformGuard.implementation?(:jruby) || PlatformGuard.implementation?(:truffleruby)
def fixnum_max
9223372036854775807
end
def fixnum_min
-9223372036854775808
end
else
def fixnum_max
raise "unknown implementation for fixnum_max() helper"
end
def fixnum_min
raise "unknown implementation for fixnum_min() helper"
end
end
end
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