CODEWITHSUNDEEP
scalamacros
Owen
Owen

Reputation: 39366

What is the actual replacement for Context#literal in Scala 2.11?

I can successfully write

import scala.reflect.macros.blackbox

object WhyDeprecated {
  def macroImpl[T : context.WeakTypeTag](context: blackbox.Context):
      context.Expr[String] =
  {
    import context.universe._

    reify {
      context.literal("Hello").splice
    }
  }
}

Though, Context#literal is deprecated:

Deprecated (Since version 2.11.0) Use quasiquotes instead

However, quasiquotes do not provide the same type:

context.literal("Hello").splice : context.Expr[String]

q""" "Hello" """ : Universe#Tree

Is there a non-deprecated replacement for Context#literal which provides an Expr[T] rather than a Tree?

Upvotes: 1

Views: 105

Answers (1)

kiritsuku
kiritsuku

Reputation: 53348

Use context.Expr(q""" "Hello" """) to retrieve an Expr from a tree.

Upvotes: 2

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