scalamacros / sbt-example

An example SBT project which uses macros (Scala 2.11, SBT 0.13)

Archived - Scala Macros

This project is no longer under development. If you need to write macros today use scala-reflect, the macro system that is included with the Scala compiler, is used by most major libraries and is documented here https://docs.scala-lang.org/overviews/macros/overview.html. Stay tuned for updates on macro support in Dotty, http://www.scala-lang.org/blog/2018/04/19/scala-3.html.

sbt-example's Issues

[error] Overlapping output directories

I was having issues discussed on Google groups while trying out this project. Please fix the project/Build.scala as per suggestion

The root project has the same base directory as core. This means the output directory overlaps and various tasks overwrite each over. That this worked in earlier versions is surprising, but changing the base directory for root to file(".") should fix the problem.

Quasiquotes not working for 2.10.

Got the following error when running sbt +compile.

[info] Loading project definition from /Users/neville/dev/scala/sbt-example/project
[info] Set current project to root (in build file:/Users/neville/dev/scala/sbt-example/)
[info] Setting version to 2.10.2
[info] Set current project to root (in build file:/Users/neville/dev/scala/sbt-example/)
[info] Compiling 1 Scala source to /Users/neville/dev/scala/sbt-example/macros/target/scala-2.10/classes...
[error] /Users/neville/dev/scala/sbt-example/macros/src/main/scala/Macros.scala:7: value q is not a member of StringContext
[error]     c.Expr[Unit](q"""println("Hello World")""")
[error]                  ^
[error] one error found
[error] (macros/compile:compile) Compilation failed
[error] Total time: 2 s, completed Oct 7, 2014 9:57:37 AM