NDLI: Scala macros: let our powers combine!: on how rich syntax and static types work with metaprogramming

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Scala macros: let our powers combine!: on how rich syntax and static types work with metaprogramming

Content Provider	ACM Digital Library
Author	Burmako, Eugene
Abstract	Compile-time metaprogramming has been proven immensely useful enabling programming techniques such as language virtualization, embedding of external domain-specific languages, self-optimization, and boilerplate generation among many others. In the recent production release of Scala 2.10 we have introduced macros, an experimental facility which gives its users compile-time metaprogramming powers. Alongside of the mainline release of Scala Macros, we have also introduced other macro flavors, which provide their users with different interfaces and capabilities for interacting with the Scala compiler. In this paper, we show how the rich syntax and static types of Scala synergize with macros, through a number of real case studies using our macros (some of which are production systems) such as language virtualization, type providers, materialization of type class instances, type-level programming, and embedding of external DSLs. We explore how macros enable new and unique ways to use pre-existing language features such as implicits, dynamics, annotations, string interpolation and others, showing along the way how these synergies open up new ways of dealing with software development challenges.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISBN	9781450320641
DOI	10.1145/2489837.2489840
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2013-07-02
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Scala Compile-time metaprogramming Type classes Domain-specific languages
Content Type	Text
Resource Type	Article

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