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/* NSC -- new Scala compiler
* Copyright 2005-2010 LAMP/EPFL
* @author Martin Odersky
*/
package scala.tools.nsc
import util.{ FreshNameCreator,Position,NoPosition,SourceFile }
import scala.collection.mutable.{ LinkedHashSet, 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
/** representation for a source code comment, includes
* '//' or '/*' '*/' in the value and the position
*/
case class Comment(text: String, pos: Position)
/** all comments found in this compilation unit */
val comments = new ListBuffer[Comment]
// def parseSettings() = {
// val argsmarker = "SCALAC_ARGS"
// if(comments nonEmpty) {
// val pragmas = comments find (_.text.startsWith("//#")) // only parse first one
// pragmas foreach { p =>
// val i = p.text.indexOf(argsmarker)
// if(i > 0)
// }
// }
// }
/** 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]
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: LinkedHashSet[icodes.IClass] = new LinkedHashSet
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)
def comment(pos: Position, msg: String) =
reporter.comment(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
}
}
}
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