ruby 1.8 strange behavior

[Dmitry V. Sabanin]

Hi,
I've started making my own C extension to ruby, and found that strange
behavior:
class MyTest
def []=(key,val)
"my_own_return_value"
end
end
test = MyTest.new
p test[1] = "big"

Both ruby1.6 and ruby1.7 puts "my_own_return_value", but ruby1.8 puts
"big". I'm interested if this is right.
I know that it's kinda stupid to do something like this and I found that just
by accident, but anyway

 

[ts]

D> Both ruby1.6 and ruby1.7 puts "my_own_return_value", but ruby1.8 puts
D> "big". I'm interested if this is right.

The modification is intentional.


Guy Decoux

 

[Mauricio Fernández]

Hi,
I've started making my own C extension to ruby, and found that strange
behavior:
class MyTest
def []=(key,val)
"my_own_return_value"
end
end
test = MyTest.new
p test[1] = "big"

Both ruby1.6 and ruby1.7 puts "my_own_return_value", but ruby1.8 puts
"big". I'm interested if this is right.
I know that it's kinda stupid to do something like this and I found that just
by accident, but anyway

The rationale for that is making it work like an assignment:

a = b[0] = 1
# here you expect a == 1, not a = return value of []=

Same thing for
a = b.bla = 1

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