diff options
Diffstat (limited to 'src/compiler/scala/tools/reflect/FastTrack.scala')
| -rw-r--r-- | src/compiler/scala/tools/reflect/FastTrack.scala | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/src/compiler/scala/tools/reflect/FastTrack.scala b/src/compiler/scala/tools/reflect/FastTrack.scala index ad1d4c896b..dd92e14602 100644 --- a/src/compiler/scala/tools/reflect/FastTrack.scala +++ b/src/compiler/scala/tools/reflect/FastTrack.scala @@ -37,14 +37,19 @@ trait FastTrack { } /** A map from a set of pre-established macro symbols to their implementations. */ - lazy val fastTrack = Map[Symbol, FastTrackEntry]( - make( materializeClassTag) { case Applied(_, ttag :: Nil, _) => _.materializeClassTag(ttag.tpe) }, - make( materializeWeakTypeTag) { case Applied(_, ttag :: Nil, (u :: _) :: _) => _.materializeTypeTag(u, EmptyTree, ttag.tpe, concrete = false) }, - make( materializeTypeTag) { case Applied(_, ttag :: Nil, (u :: _) :: _) => _.materializeTypeTag(u, EmptyTree, ttag.tpe, concrete = true) }, - make( ApiUniverseReify) { case Applied(_, ttag :: Nil, (expr :: _) :: _) => c => c.materializeExpr(c.prefix.tree, EmptyTree, expr) }, - make( StringContext_f) { case Applied(Select(Apply(_, ps), _), _, args) => c => c.macro_StringInterpolation_f(ps, args.flatten, c.expandee.pos) }, - make(ReflectRuntimeCurrentMirror) { case _ => c => currentMirror(c).tree }, - make( QuasiquoteClass_api_apply) { case _ => _.expandQuasiquote }, - make(QuasiquoteClass_api_unapply) { case _ => _.expandQuasiquote } - ) + def fastTrack: Map[Symbol, FastTrackEntry] = fastTrackCache() + private val fastTrackCache = perRunCaches.newGeneric[Map[Symbol, FastTrackEntry]] { + val runDefinitions = currentRun.runDefinitions + import runDefinitions._ + Map[Symbol, FastTrackEntry]( + make( materializeClassTag) { case Applied(_, ttag :: Nil, _) => _.materializeClassTag(ttag.tpe) }, + make( materializeWeakTypeTag) { case Applied(_, ttag :: Nil, (u :: _) :: _) => _.materializeTypeTag(u, EmptyTree, ttag.tpe, concrete = false) }, + make( materializeTypeTag) { case Applied(_, ttag :: Nil, (u :: _) :: _) => _.materializeTypeTag(u, EmptyTree, ttag.tpe, concrete = true) }, + make( ApiUniverseReify) { case Applied(_, ttag :: Nil, (expr :: _) :: _) => c => c.materializeExpr(c.prefix.tree, EmptyTree, expr) }, + make( StringContext_f) { case Applied(Select(Apply(_, ps), _), _, args) => c => c.macro_StringInterpolation_f(ps, args.flatten, c.expandee.pos) }, + make(ReflectRuntimeCurrentMirror) { case _ => c => currentMirror(c).tree }, + make( QuasiquoteClass_api_apply) { case _ => _.expandQuasiquote }, + make(QuasiquoteClass_api_unapply) { case _ => _.expandQuasiquote } + ) + } } |