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assert "Proc#binding" do
block = ->(i) {}
a, b, c = 1, 2, 3
bind = block.binding
assert_equal([:a, :b, :bind, :block, :c], bind.local_variables.sort)
assert_equal(1, bind.local_variable_get(:a))
assert_equal(5, bind.eval("b + c"))
bind.local_variable_set(:x, 9)
assert_equal(9, bind.local_variable_get(:x))
end
assert("Binding#source_location after Proc#binding") do
skip unless -> {}.source_location
block, source_location = -> {}, [__FILE__, __LINE__]
assert_equal source_location, block.binding.source_location
end
assert "Proc#binding and .eval from C" do
bind = proc_in_c.binding
assert_nothing_raised { bind.eval("self") }
end
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