/* NSC -- new Scala compiler
* Copyright 2005-2009 LAMP/EPFL
* @author Martin Odersky
*/
// $Id$
package scala.tools.nsc
import scala.tools.nsc.util.{FreshNameCreator,OffsetPosition,Position,NoPosition,SourceFile}
import scala.tools.nsc.io.AbstractFile
import scala.collection.mutable.{HashSet, HashMap, ListBuffer}
trait CompilationUnits { self: Global =>
/** One unit of compilation that has been submitted to the compiler.
* It typically corresponds to a single file of source code. It includes
* error-reporting hooks. */
class CompilationUnit(val source: SourceFile) extends CompilationUnitTrait {
/** the fresh name creator */
var fresh : FreshNameCreator = new FreshNameCreator.Default
/** the content of the compilation unit in tree form */
var body: Tree = EmptyTree
/** Note: depends now contains toplevel classes.
* To get their sourcefiles, you need to dereference with .sourcefile
*/
val depends = new HashSet[Symbol]
/** so we can relink
*/
val defined = new HashSet[Symbol]
/** Synthetic definitions generated by namer, eliminated by typer.
*/
val synthetics = new HashMap[Symbol, Tree]
/** things to check at end of compilation unit */
val toCheck = new ListBuffer[() => Unit]
/** used to track changes in a signature */
var pickleHash : Long = 0
def position(pos: Int) = source.position(pos)
/** The position of a targeted type check
* If this is different from NoPosition, the type checking
* will stop once a tree that contains this position range
* is fully attributed.
*/
def targetPos: Position = NoPosition
/** The icode representation of classes in this compilation unit.
* It is empty up to phase 'icode'.
*/
val icode: HashSet[icodes.IClass] = new HashSet
def error(pos: Position, msg: String) =
reporter.error(pos, msg)
def warning(pos: Position, msg: String) =
reporter.warning(pos, msg)
def deprecationWarning(pos: Position, msg: String) =
if (settings.deprecation.value) warning(pos, msg)
else currentRun.deprecationWarnings = true
def uncheckedWarning(pos: Position, msg: String) =
if (settings.unchecked.value) warning(pos, msg)
else currentRun.uncheckedWarnings = true
def incompleteInputError(pos: Position, msg:String) =
reporter.incompleteInputError(pos, msg)
/** Is this about a .java source file? */
lazy val isJava = source.file.name.endsWith(".java")
override def toString() = source.toString()
def clear() {
fresh = null
body = null
depends.clear
defined.clear
}
}
}