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| author | Paul Phillips <paulp@improving.org> | 2012-04-24 07:51:19 -0700 |
|---|---|---|
| committer | Paul Phillips <paulp@improving.org> | 2012-04-25 09:09:29 -0700 |
| commit | c22ec635c75170d1ac1cb0074e532b4186eed845 (patch) | |
| tree | 44713230e43a29b34bb87a41cc1719334fe32391 /src/compiler/scala/tools/nsc/typechecker/Typers.scala | |
| parent | 5cf9499731255078de62c8f3704fa596b564bf0e (diff) | |
| download | scala-c22ec635c75170d1ac1cb0074e532b4186eed845.tar.gz scala-c22ec635c75170d1ac1cb0074e532b4186eed845.tar.bz2 scala-c22ec635c75170d1ac1cb0074e532b4186eed845.zip | |
Some long overdue conveniences.
Not just conveniences though. One of the clearest statements made
by profiling is that collections methods of the form of the enclosed
flatCollect are materially faster than the alternatives.
Diffstat (limited to 'src/compiler/scala/tools/nsc/typechecker/Typers.scala')
| -rw-r--r-- | src/compiler/scala/tools/nsc/typechecker/Typers.scala | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/src/compiler/scala/tools/nsc/typechecker/Typers.scala b/src/compiler/scala/tools/nsc/typechecker/Typers.scala index 1414424a0b..a956b9a177 100644 --- a/src/compiler/scala/tools/nsc/typechecker/Typers.scala +++ b/src/compiler/scala/tools/nsc/typechecker/Typers.scala @@ -3289,14 +3289,12 @@ trait Typers extends Modes with Adaptations with Taggings with PatMatVirtualiser case tp => tp } - (hidden map { s => - // Hanging onto lower bound in case anything interesting - // happens with it. - (s, s.existentialBound match { - case TypeBounds(lo, hi) => TypeBounds(lo, hiBound(s)) - case _ => hiBound(s) - }) - }).toMap + // Hanging onto lower bound in case anything interesting + // happens with it. + mapFrom(hidden)(s => s.existentialBound match { + case TypeBounds(lo, hi) => TypeBounds(lo, hiBound(s)) + case _ => hiBound(s) + }) } /** Given a set `rawSyms` of term- and type-symbols, and a type |