From: Hugh Sasse Staff Elec Eng <hgs@...>
Date: 2000-08-21T23:40:01+09:00
Subject: [ruby-talk:4527] for and multiple assignment?

Ruby already has mutiple assignment.  Would it be possible to extend
for to allow multiple things to be selected at once?

for p1, p2, p3, result1, result2 in long_list_of_tests do
    mine = My_class.new()
    mine.method1(p1,p2,p3)
    assert_equal(result1, mine.feature1())
    assert_equal(result2, mine.feature2())
end

seems to be more readable to me than:

while long_list_of_tests.length do
    p1 = long_list_of_tests.shift
    p2 = long_list_of_tests.shift
    p3 = long_list_of_tests.shift
    result1 = long_list_of_tests.shift
    result2 = long_list_of_tests.shift
    mine = My_class.new()
    mine.method1(p1,p2,p3)
    assert_equal(result1, mine.feature1())
    assert_equal(result2, mine.feature2())
end

Maybe there is a good reason why this has not been allowed.
	Hugh
	hgs@dmu.ac.uk