blob: 2183218c820804e825ea6517511434b45db86712 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
/* NSC -- new Scala compiler
* Copyright 2005-2006 LAMP/EPFL
* @author
*/
// $Id$
package scala.tools.nsc.transform
/** <p>
* A base class for transforms.
* </p>
* <p>
* A transform contains a compiler phase which applies a tree transformer.
* </p>
*/
abstract class InfoTransform extends Transform {
import global.{Symbol, Type, InfoTransformer, infoTransformers}
def transformInfo(sym: Symbol, tpe: Type): Type
override def newPhase(prev: scala.tools.nsc.Phase): StdPhase =
new Phase(prev)
protected def changesBaseClasses = true
class Phase(prev: scala.tools.nsc.Phase) extends super.Phase(prev) {
if (infoTransformers.nextFrom(id).pid != id) {
// this phase is not yet in the infoTransformers
val infoTransformer = new InfoTransformer {
val pid = id
val changesBaseClasses = InfoTransform.this.changesBaseClasses
def transform(sym: Symbol, tpe: Type): Type = transformInfo(sym, tpe)
}
infoTransformers.insert(infoTransformer)
}
}
}
|