On 24 Mar 2014, at 11:51 , Pavel Krivanek <pavel.krivanek@gmail.com> wrote:

Who can find the most useful usage of this?

thisContext instVarNamed: #receiver put: 42.
self factorial

GOTO statement in Pharo:

FileStream stdout nextPutAll: 'Hello world'; lf.

thisContext jump: -12.

Let's collect the next ones :-)

Cheers,

-- Pavel

evaluator: aMethodBody

"Uses a lightweight class to provide instance-specific value.

|lightWeightClass |

lightWeightClass := self class copy setSuperclass: MyBaseClass.

lightWeightClass compile: aMethodBody classified: 'accessing'.

lightWeightClass adoptInstance: self.

evaluate: someThing

�Will be replaced by specific behavior at runtime if appropriate�

^true

Because, well, storing a block and evaluating that, is too much overhead.

Cheers,

Henry