diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/compiler/scala/tools/nsc/transform/LazyVals.scala | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/src/compiler/scala/tools/nsc/transform/LazyVals.scala b/src/compiler/scala/tools/nsc/transform/LazyVals.scala index 8a0086dbdd..bc9f70679c 100644 --- a/src/compiler/scala/tools/nsc/transform/LazyVals.scala +++ b/src/compiler/scala/tools/nsc/transform/LazyVals.scala @@ -215,14 +215,16 @@ abstract class LazyVals extends Transform with TypingTransformers with ast.TreeD def mkSlowPathDef(clazz: Symbol, lzyVal: Symbol, cond: Tree, syncBody: List[Tree], stats: List[Tree], retVal: Tree): Tree = { - // Q: is there a reason to first set owner to `clazz` (by using clazz.newMethod), and then - // changing it to lzyVal.owner very soon after? Could we just do lzyVal.owner.newMethod? - val defSym = clazz.newMethod(nme.newLazyValSlowComputeName(lzyVal.name.toTermName), lzyVal.pos, STABLE | PRIVATE) + val owner = lzyVal.owner + val defSym = owner.newMethod(nme.newLazyValSlowComputeName(lzyVal.name.toTermName), lzyVal.pos, STABLE | PRIVATE) defSym setInfo MethodType(List(), lzyVal.tpe.resultType) - defSym.owner = lzyVal.owner + if (owner.isClass) owner.info.decls.enter(defSym) debuglog(s"crete slow compute path $defSym with owner ${defSym.owner} for lazy val $lzyVal") - if (bitmaps.contains(lzyVal)) - bitmaps(lzyVal).map(_.owner = defSym) + // this is a hack i don't understand for lazy vals nested in a lazy val, introduced in 3769f4d, + // tested in pos/t3670 (add9be64). class A { val n = { lazy val b = { lazy val dd = 3; dd }; b } } + // bitmaps has an entry bMethodSym -> List(bitmap$0), where bitmap$0.owner == bMethodSym. + // now we set bitmap$0.owner = b$lzycomputeMethodSym. + for (bitmap <- bitmaps(lzyVal)) bitmap.owner = defSym val rhs: Tree = gen.mkSynchronizedCheck(clazz, cond, syncBody, stats).changeOwner(currentOwner -> defSym) DefDef(defSym, addBitmapDefs(lzyVal, BLOCK(rhs, retVal))) |