Compiler Internals

The files below are recordings of code walk-through sessions by Martin Odersky about the Scala compiler internals. The video quality is suboptimal, but the movies are a good reference to some of the most obscure details of the compiler architecture.

Scala Internals 2008-10-29 (Symbols 1), AVI movie [1], also on YouTube [2]
Handling of Symbols in the Scala compiler: some details on the symtab subdir, Symbols, Definitions, StdNames, Types (Lazy Types).
Scala Internals 2008-11-05 (Symbols 2), AVI movie [3], also on YouTube [4]
Handling of Symbols part deux: more information on Symbols, Flags, Definitions.
Scala Internals 2009-03-04 (Types), AVI movie [5], also on YouTube [6]
A detailed explanation about how types are represented and manipulated within the Scala compiler: data structures, manipulations of types, coding conventions (audio is not perfect, but intelligible).

Links:
[1] http://www.scala-lang.org/sites/default/files/martin_ordersky_scala_internals_2008-10-29.avi
[2] http://www.youtube.com/watch?v=OwdZzVCE6so
[3] http://www.scala-lang.org/sites/default/files/martin_ordersky_scala_internals_2008-11-05.avi
[4] http://www.youtube.com/watch?v=RKmcOHSVJpc
[5] http://www.scala-lang.org/sites/default/files/martin_ordersky_scala_internals_2009-03-04.avi
[6] http://www.youtube.com/watch?v=sD1GT2K8LVo