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author | Martin Odersky <odersky@gmail.com> | 2016-12-17 15:09:27 +0100 |
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committer | Martin Odersky <odersky@gmail.com> | 2016-12-17 15:09:52 +0100 |
commit | b63480a59bbdd284a5e32281fbb0037e509f4b1e (patch) | |
tree | 825824024ad6768646c3dbf630a2db9283eedcd4 /compiler/src/dotty/tools/dotc/printing/Formatting.scala | |
parent | 653698ef67a5cf8f5e0fd0fcdcd1f631f1dc96e2 (diff) | |
download | dotty-b63480a59bbdd284a5e32281fbb0037e509f4b1e.tar.gz dotty-b63480a59bbdd284a5e32281fbb0037e509f4b1e.tar.bz2 dotty-b63480a59bbdd284a5e32281fbb0037e509f4b1e.zip |
Make errors are not swept under the carpet
Typer#ensureReported's comment outlines an example where errors
could go unreported, resulting in error trees after typer without
any reported error messages. This commit makes sure that at least
one error is reported if a tree node has an error type.
Fixes #1802.
Diffstat (limited to 'compiler/src/dotty/tools/dotc/printing/Formatting.scala')
-rw-r--r-- | compiler/src/dotty/tools/dotc/printing/Formatting.scala | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/compiler/src/dotty/tools/dotc/printing/Formatting.scala b/compiler/src/dotty/tools/dotc/printing/Formatting.scala index b321d3736..05f1af9d7 100644 --- a/compiler/src/dotty/tools/dotc/printing/Formatting.scala +++ b/compiler/src/dotty/tools/dotc/printing/Formatting.scala @@ -96,7 +96,10 @@ object Formatting { case tpe: Type => tpe.exists && !tpe.isErroneous case sym: Symbol if sym.isCompleted => - sym.info != ErrorType && sym.info != TypeAlias(ErrorType) && sym.info.exists + sym.info match { + case _: ErrorType | TypeAlias(_: ErrorType) | NoType => false + case _ => true + } case _ => true } |