blob: e8c8def01236c872472d2cbb8c26dfe9503f0e74 (
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
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/* NSC -- new Scala compiler
* Copyright 2005-2011 LAMP/EPFL
* @author Martin Odersky
*/
package scala.tools.nsc
package typechecker
import util.Statistics._
/** The main attribution phase.
*/
trait Analyzer extends AnyRef
with Contexts
with Namers
with Typers
with Infer
with Implicits
with Variances
with EtaExpansion
with SyntheticMethods
with Unapplies
with NamesDefaults
with TypeDiagnostics
{
val global : Global
import global._
object namerFactory extends SubComponent {
val global: Analyzer.this.global.type = Analyzer.this.global
val phaseName = "namer"
val runsAfter = List[String]("parser")
val runsRightAfter = None
def newPhase(_prev: Phase): StdPhase = new StdPhase(_prev) {
override val checkable = false
override def keepsTypeParams = false
def apply(unit: CompilationUnit) {
newNamer(rootContext(unit)).enterSym(unit.body)
}
}
}
object packageObjects extends SubComponent {
val global: Analyzer.this.global.type = Analyzer.this.global
val phaseName = "packageobjects"
val runsAfter = List[String]()
val runsRightAfter= Some("namer")
def newPhase(_prev: Phase): StdPhase = new StdPhase(_prev) {
override val checkable = false
import global._
val openPackageObjectsTraverser = new Traverser {
override def traverse(tree: Tree): Unit = tree match {
case ModuleDef(_, _, _) =>
if (tree.symbol.name == nme.PACKAGEkw) {
loaders.openPackageModule(tree.symbol)()
}
case ClassDef(_, _, _, _) => () // make it fast
case _ => super.traverse(tree)
}
}
def apply(unit: CompilationUnit) {
openPackageObjectsTraverser(unit.body)
}
}
}
object typerFactory extends SubComponent {
val global: Analyzer.this.global.type = Analyzer.this.global
val phaseName = "typer"
val runsAfter = List[String]()
val runsRightAfter = Some("packageobjects")
def newPhase(_prev: Phase): StdPhase = new StdPhase(_prev) {
override def keepsTypeParams = false
resetTyper()
// the log accumulates entries over time, even though it should not (Adriaan, Martin said so).
// Lacking a better fix, we clear it here (before the phase is created, meaning for each
// compiler run). This is good enough for the resident compiler, which was the most affected.
undoLog.clear()
override def run {
val start = startTimer(typerNanos)
global.echoPhaseSummary(this)
currentRun.units foreach applyPhase
undoLog.clear()
// need to clear it after as well or 10K+ accumulated entries are
// uncollectable the rest of the way.
stopTimer(typerNanos, start)
}
def apply(unit: CompilationUnit) {
try {
unit.body = newTyper(rootContext(unit)).typed(unit.body)
if (global.settings.Yrangepos.value && !global.reporter.hasErrors) global.validatePositions(unit.body)
for (workItem <- unit.toCheck) workItem()
} finally {
unit.toCheck.clear()
}
}
}
}
}
|
