diff options
Diffstat (limited to 'tests/pending/run/macro-range/Expansion_Impossible_2.scala')
| -rw-r--r-- | tests/pending/run/macro-range/Expansion_Impossible_2.scala | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/tests/pending/run/macro-range/Expansion_Impossible_2.scala b/tests/pending/run/macro-range/Expansion_Impossible_2.scala deleted file mode 100644 index b3c2fa348..000000000 --- a/tests/pending/run/macro-range/Expansion_Impossible_2.scala +++ /dev/null @@ -1,53 +0,0 @@ -import scala.reflect.macros.blackbox.Context - -object Impls { - def foreach(c: Context)(f: c.Expr[Int => Unit]): c.Expr[Unit] = { - // todo. read the compiler config and print if -Ydebug is set - //println("macro-expand, _this = "+ _this) - object utils extends Utils { val context: c.type = c } - import utils._ - import c.universe._ - import Flag._ - - val initName = termNames.CONSTRUCTOR - // Either: - // scala"{ var i = $low; val h = $hi; while (i < h) { $f(i); i = i + 1 } } - // or: - // scala"($_this: RangeDefault).foreach($f)" - c.Expr(c.prefix.tree match { - case Apply(Select(New(tpt), initName), List(lo, hi)) if tpt.symbol.fullName == "Range" => - val iname = TermName("$i") - val hname = TermName("$h") - def iref = Ident(iname) - def href = Ident(hname) - val labelname = TermName("$while") - val cond = makeBinop(iref, "$less", href) - val body = Block( - List(makeApply(f.tree, List(iref))), - Assign(iref, makeBinop(iref, "$plus", Literal(Constant(1))))) - val generated = - Block( - List( - ValDef(Modifiers(MUTABLE), iname, TypeTree(), lo), - ValDef(Modifiers(), hname, TypeTree(), hi)), - makeWhile(labelname, cond, body)) - // todo. read the compiler config and print if -Ydebug is set - //tools.nsc.util.trace("generated: ")(generated) - generated - case _ => - Apply( - Select( - Typed(c.prefix.tree, Ident(TypeName("RangeDefault"))), - TermName("foreach")), - List(f.tree)) - }) - } -} - -class Range(val from: Int, val to: Int) extends RangeDefault { - override def foreach(f: Int => Unit): Unit = macro Impls.foreach -} - -object Test extends dotty.runtime.LegacyApp { - new Range(1, 10) foreach println -}
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