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Updated version of the Lecture. VUB Brussels, Ocotber 2018
Smalltalk provides many reflective features, yet behavioral reflection is limited. Pharo provides reflective features that go beyond standard Smalltalk.
The lecture will present Reflectivity, a framework for fine-grained behavioral reflection. It allows to annotate the AST with MetaLinks, alowing meta-objects to change behavior down to a single operation.
After a overview of the framework, we show how MetaLinks are used in Pharo to realize IDE tools such as BreakPoints and Code Coverage.