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/* NSC -- new Scala compiler
* Copyright 2005-2013 LAMP/EPFL
* @author Gilles Dubochet
*/
package scala.reflect.macros
package contexts
trait Reifiers {
self: Context =>
val global: universe.type = universe
import universe._
import definitions._
def reifyTree(universe: Tree, mirror: Tree, tree: Tree): Tree = {
assert(ExprClass != NoSymbol)
val result = scala.reflect.reify.`package`.reifyTree(self.universe)(callsiteTyper, universe, mirror, tree)
logFreeVars(enclosingPosition, result)
result
}
def reifyType(universe: Tree, mirror: Tree, tpe: Type, concrete: Boolean = false): Tree = {
assert(TypeTagsClass != NoSymbol)
val result = scala.reflect.reify.`package`.reifyType(self.universe)(callsiteTyper, universe, mirror, tpe, concrete)
logFreeVars(enclosingPosition, result)
result
}
def reifyRuntimeClass(tpe: Type, concrete: Boolean = true): Tree =
scala.reflect.reify.`package`.reifyRuntimeClass(universe)(callsiteTyper, tpe, concrete = concrete)
def reifyEnclosingRuntimeClass: Tree =
scala.reflect.reify.`package`.reifyEnclosingRuntimeClass(universe)(callsiteTyper)
def unreifyTree(tree: Tree): Tree = {
assert(ExprSplice != NoSymbol)
Select(tree, ExprSplice)
}
// fixme: if I put utils here, then "global" from utils' early initialization syntax
// and "global" that comes from here conflict with each other when incrementally compiling
// the problem is that both are pickled with the same owner - trait Reifiers
// and this upsets the compiler, so that oftentimes it throws assertion failures
// Martin knows the details
//
// object utils extends {
// val global: self.global.type = self.global
// val typer: global.analyzer.Typer = self.callsiteTyper
// } with scala.reflect.reify.utils.Utils
// import utils._
private def logFreeVars(position: Position, reification: Tree): Unit = {
object utils extends {
val global: self.global.type = self.global
val typer: global.analyzer.Typer = self.callsiteTyper
} with scala.reflect.reify.utils.Utils
import utils._
def logFreeVars(symtab: SymbolTable): Unit =
// logging free vars only when they are untyped prevents avalanches of duplicate messages
symtab.syms map (sym => symtab.symDef(sym)) foreach {
case FreeTermDef(_, _, binding, _, origin) if universe.settings.logFreeTerms && binding.tpe == null =>
reporter.echo(position, s"free term: ${showRaw(binding)} $origin")
case FreeTypeDef(_, _, binding, _, origin) if universe.settings.logFreeTypes && binding.tpe == null =>
reporter.echo(position, s"free type: ${showRaw(binding)} $origin")
case _ =>
// do nothing
}
if (universe.settings.logFreeTerms || universe.settings.logFreeTypes)
reification match {
case ReifiedTree(_, _, symtab, _, _, _, _) => logFreeVars(symtab)
case ReifiedType(_, _, symtab, _, _, _) => logFreeVars(symtab)
}
}
}
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