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|
def visibility
x = 1
1.times { |i|
z = x + i
1.times { |j|
w = z + j
}
puts w rescue puts $!
}
puts z rescue puts $!
end
def init
5.times { |i|
if i == 0
x = 1
else
x = (x.nil? ? 0 : x) + 2
end
puts x
}
end
def closure
p = []
2.times { |i|
p << lambda {
puts i
}
}
p[0][]
p[1][]
end
def closure_binding
p = []
2.times { |i|
p << binding
}
eval('puts i', p[0])
eval('puts i', p[1])
end
def module_scope
eval('
$p = []
$i = 0
while $i < 2
module M
x = $i
$p << binding
end
$i += 1
end
')
eval('puts x', $p[0])
eval('puts x', $p[1])
end
visibility
puts '---'
init
puts '---'
closure
puts '---'
closure_binding
puts '---'
module_scope
puts '---'
puts 'done'
|
