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| author | Martin Odersky <odersky@gmail.com> | 2014-02-06 21:53:56 +0100 |
|---|---|---|
| committer | Martin Odersky <odersky@gmail.com> | 2014-02-06 21:55:17 +0100 |
| commit | 0d356254c4d6326398c9c1a587ad193fadef6883 (patch) | |
| tree | efca748e4e2278c675a2880cc0b31927272aa6c9 /src/dotty/tools/dotc/core/Types.scala | |
| parent | ab62ca99a31ccd1984b875f7040b430bfccc2724 (diff) | |
| download | dotty-0d356254c4d6326398c9c1a587ad193fadef6883.tar.gz dotty-0d356254c4d6326398c9c1a587ad193fadef6883.tar.bz2 dotty-0d356254c4d6326398c9c1a587ad193fadef6883.zip | |
Catch stale references
If a NamedType was denoted a SymDenotation one run, but stops being defined in the next, throw a staleSymbol error.
Diffstat (limited to 'src/dotty/tools/dotc/core/Types.scala')
| -rw-r--r-- | src/dotty/tools/dotc/core/Types.scala | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/dotty/tools/dotc/core/Types.scala b/src/dotty/tools/dotc/core/Types.scala index 2a6a5017f..28a7f9e67 100644 --- a/src/dotty/tools/dotc/core/Types.scala +++ b/src/dotty/tools/dotc/core/Types.scala @@ -1018,8 +1018,12 @@ object Types { case null => val sym = lastSymbol if (sym == null) loadDenot else denotOfSym(sym) - case d: SymDenotation if ctx.stillValid(d) => - d.current + case d: SymDenotation => + if (ctx.stillValid(d)) d.current + else { + val newd = loadDenot + if (newd.exists) newd else d.staleSymbolError + } case d => if (d.validFor.runId == ctx.period.runId) d.current else loadDenot |