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Play joyless HList-style operations on standard tuples

I am very new to Scala and am looking at a formless package to provide HList-like operations for Scala tuples.

I run Scala 2.10.5, and I have successfully installed the package (version 2.2.0-RC6), as well as all the dependencies.

When I try to run the following example (from formless function overview ) in REPL,

    scala> import shapeless._; import syntax.std.tuple._
    scala > (23, "foo", true).head

The following error message appears:

<console>:17: error: could not find implicit value for parameter c: shapeless.ops.tuple.IsComposite[(Int, String, Boolean)]
          (23, "foo", true).head

I bet it’s a stupid mistake on my part, and I delved into numerous forums about this.

What am I missing?

Thanks in advance for your help.

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1 answer

, . , , , .

build.sbt - :

libraryDependencies ++= Seq(
  "com.chuusai" %% "shapeless" % "2.2.0-RC6",
  compilerPlugin("org.scalamacros" % "paradise" % "2.0.1" cross CrossVersion.full)
)
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