On Sun, Sep 10, 2017 at 01:33:15PM +0200, Lorenz K??hl wrote:
I don't understand why Smalltalk doesn't allow me to have an or: method that takes a block argument (except on Boolean). For example:
Set or: 1. ==> MNU as expected.
Set or: [1]. ==> NonBooleanReceiver exception.
Set or: [:x | x] ==> Argument has too many arguments
Is it because the compiler specializes this to boolean when it sees the or: [ ... ] syntax? Is this a tradeoff made for performance?
Hi Lorenz,
If you are looking for set operations, check these methods:
Collection>>union: Collection>>intersection: Collection>>difference:
I am not sure what you are trying to do with your examples. Can you explain the intent?
Dave