Contents

require 'test/unit'
require_relative '../../ext/thread_frame' if '1.9.2' == RUBY_VERSION

def outside(a)
    return eval('a', RubyVM::Frame.new(Thread::current).binding)
end

$a = 10

class TestBinding < Test::Unit::TestCase
  def test_basic
    a = 1
    c = 0
    assert_equal(5, outside(5))
    tf = RubyVM::Frame.new(Thread::current)
    b  = tf.binding
    assert_equal(1, eval('a', b))
    assert_equal(10, eval('$a', b))
    assert_equal(self, tf.self)
    1.times do |i;a| 
      tf2 = Thread::current.frame()
      b2  = tf2.binding
      a = 2
      assert_equal(2, eval('a', b2))
      assert_equal(0, eval('c', b2))

      # Times is C inline so prev we can't get a binding for it
      # But we can for use the instruction sequence before that.
      assert_equal(1, eval('a', tf2.prev(2).binding))
    end
    def inner(a)
      tf3 = Thread::current.frame()
      b3  = tf3.binding
      if a == 4
        assert_equal(4, eval('a', b3))
        inner(a-1)
      else
        assert_equal(3, eval('a', b3))
        assert_equal(4, eval('a', tf3.prev.binding))
      end
    end
    inner(4)
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
rb-threadframe-0.41	test/unit/test-binding.rb
rb-threadframe-0.40	test/unit/test-binding.rb