…
..
argf
array
basicobject
binding
builtin_constants
class
comparable
complex
dir
encoding
enumerable
enumerator
env
exception
false
fiber
file
filetest
float
gc
hash
integer
io
kernel
main
marshal
matchdata
math
method
module
mutex
nil
numeric
objectspace
proc
process
random
range
rational
regexp
signal
string
struct
symbol
systemexit
thread
threadgroup
time
tracepoint
true
unboundmethod
warning