Last updated at 12:34 pm UTC on 21 November 2017
If the message #value is sent to a code Block it is is evaluated.
[3 + 4] printString
[3 + 4] [closure] in UndefinedObject>>DoIt
in a recent version of Squeak.
[3 + 4] value
Another example: A block as the target of a SimpleButtonMorph