1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61
|
// BoxedUnit/Unit confusion involving while.
//
// Apply( // sym=method while$1, tpe=Unit, tpe.sym=class Unit, tpe.sym.owner=package scala
// Ident("while$1"), // sym=method while$1, sym.owner=method f, sym.tpe=()Unit, tpe=()Unit, tpe.sym=<none>,
class Erasure {
def f(b: Boolean) = {
if (b) "abc"
else while (b) ()
}
}
// % work/check all -Xprint:erasure work/fail6.scala
// TypeStack init: REFERENCE(type AnyRef)
// [Not checkable: parser]
// [Not checkable: namer]
// [Not checkable: packageobjects]
// [Now checking: typer]
// [Now checking: superaccessors]
// [Now checking: pickler]
// [Now checking: refchecks]
// [Now checking: selectiveanf]
// [Now checking: liftcode]
// [Now checking: selectivecps]
// [Now checking: uncurry]
// [Now checking: tailcalls]
// [Not checkable: specialize]
// [Not checkable: explicitouter]
// [[syntax trees at end of erasure]]// Scala source: fail6.scala
// package <empty> {
// class Erasure extends java.lang.Object with ScalaObject {
// def this(): Erasure = {
// Erasure.super.this();
// ()
// };
// def f(b: Boolean): java.lang.Object = if (b)
// "abc"
// else
// while$1(){
// if (b)
// {
// ();
// while$1()
// }
// else
// ();
// scala.runtime.BoxedUnit.UNIT
// }
// }
// }
//
// [Now checking: erasure]
// work/fail6.scala:4: error:
// **** ERROR DURING INTERNAL CHECKING ****
// type mismatch;
// found : scala.runtime.BoxedUnit
// required: Unit
// else while (b) ()
// ^
// one error found
//
//
|