[Pharo-dev] String >> #=

[Philippe Marschall]

Hi

I have been investigating why Dictionary look up performance with String 
keys is not as good as I would expected. Something I noted is that 
String >> #= is implemented in terms of #compare:with:collated:. There 
is no short circuit if Strings are not the same size. In my case some 
Strings have the same prefix but a different length eg 'Content-Type' 
and 'Content-Length'. In that case a #compare:with:collated: is 
performed even though we know in advance the answer will be false 
because they have different sizes.

Cheers
Philippe