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Diffstat (limited to 'src')
| -rw-r--r-- | src/compiler/scala/tools/nsc/typechecker/Typers.scala | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/compiler/scala/tools/nsc/typechecker/Typers.scala b/src/compiler/scala/tools/nsc/typechecker/Typers.scala index 2bdae4164a..a23bc35e77 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Typers.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Typers.scala @@ -4825,6 +4825,16 @@ trait Typers extends Modes with Adaptations with Tags { case Try(block, catches, finalizer) => var block1 = typed(block, pt) var catches1 = typedCases(catches, ThrowableClass.tpe, pt) + + for (cdef <- catches1 if cdef.guard.isEmpty) { + def warn(name: Name) = context.warning(cdef.pat.pos, s"This catches all Throwables. If this is really intended, use `case ${name.decoded} : Throwable` to clear this warning.") + cdef.pat match { + case Bind(name, Ident(_)) => warn(name) + case Ident(name) => warn(name) + case _ => + } + } + val finalizer1 = if (finalizer.isEmpty) finalizer else typed(finalizer, UnitClass.tpe) val (owntype, needAdapt) = ptOrLub(block1.tpe :: (catches1 map (_.tpe)), pt) |