Scala-virtualized

Authors:
Adriaan Moors;Tiark Rompf;Philipp Haller;Martin Odersky
Affiliations:
EPFL, Lausanne, Switzerland;EPFL, Lausanne, Switzerland;EPFL and Stanford, Lausanne and Stanford, Switzerland;EPFL, Lausanne, Switzerland
Venue:
PEPM '12 Proceedings of the ACM SIGPLAN 2012 workshop on Partial evaluation and program manipulation
Year:
2012

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Abstract

Scala-Virtualized extends the Scala language to better support hosting embedded DSLs. Embedding a DSL in Scala-Virtualized comes with all the benefits of a shallow embedding thanks to Scala's flexible syntax, without giving up analyzing and manipulating the domain program -- typically exclusive to deep embeddings. Through lightweight modular staging, implemented in standard Scala, the benefits of a deep embedding are recovered with little overhead. Scala-Virtualized lifts more of the language's built-in constructs and static information to complete this support and make it more convenient. We illustrate how Scala-Virtualized makes Scala an even better host for embedded DSLs along three axes of customizing the language: syntax, run-time behavior and static semantics.