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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/* NSC -- new Scala compiler
* Copyright 2005-2011 LAMP/EPFL
* @author Martin Odersky
*/
package scala.tools.nsc
import java.io.File
import File.pathSeparator
import scala.tools.nsc.interactive.{ RefinedBuildManager, SimpleBuildManager }
import scala.tools.nsc.io.AbstractFile
import scala.tools.nsc.reporters.{Reporter, ConsoleReporter}
import scala.tools.nsc.util.{ BatchSourceFile, FakePos } //{Position}
import Properties.{ versionString, copyrightString, residentPromptString, msilLibPath }
/** The main class for NSC, a compiler for the programming
* language Scala.
*/
object Main extends AnyRef with EvalLoop {
val versionMsg = "Scala compiler " +
versionString + " -- " +
copyrightString
val prompt = residentPromptString
var reporter: ConsoleReporter = _
private def scalacError(msg: String) {
reporter.error(FakePos("scalac"), msg + "\n scalac -help gives more information")
}
def resident(compiler: Global) {
loop { line =>
val args = line.split(' ').toList
val command = new CompilerCommand(args, new Settings(scalacError))
compiler.reporter.reset()
new compiler.Run() compile command.files
}
}
def process(args: Array[String]) {
val ss = new Settings(scalacError)
reporter = new ConsoleReporter(ss)
val command = new CompilerCommand(args.toList, ss)
val settings = command.settings
if (settings.version.value)
reporter.info(null, versionMsg, true)
else if (settings.Yidedebug.value) {
settings.Xprintpos.value = true
settings.Yrangepos.value = true
val compiler = new interactive.Global(settings, reporter)
import compiler.{ reporter => _, _ }
val sfs = command.files map getSourceFile
val reloaded = new interactive.Response[Unit]
askReload(sfs, reloaded)
reloaded.get.right.toOption match {
case Some(ex) => reporter.cancelled = true // Causes exit code to be non-0
case None => reporter.reset() // Causes other compiler errors to be ignored
}
askShutdown
}
else if (settings.Ybuilderdebug.value != "none") {
def fileSet(files : List[String]) = Set.empty ++ (files map AbstractFile.getFile)
val buildManager = settings.Ybuilderdebug.value match {
case "simple" => new SimpleBuildManager(settings)
case _ => new RefinedBuildManager(settings)
}
buildManager.addSourceFiles(fileSet(command.files))
// enter resident mode
loop { line =>
val args = line.split(' ').toList
val command = new CompilerCommand(args.toList, settings)
buildManager.update(fileSet(command.files), Set.empty)
}
}
else {
if (settings.target.value == "msil")
msilLibPath foreach (x => settings.assemrefs.value += (pathSeparator + x))
val compiler =
if (settings.Yrangepos.value) new interactive.Global(settings, reporter)
else new Global(settings, reporter)
try {
if (reporter.hasErrors)
return reporter.flush()
if (command.shouldStopWithInfo) {
reporter.info(null, command.getInfoMessage(compiler), true)
}
else {
if (settings.resident.value)
resident(compiler)
else if (command.files.isEmpty) {
reporter.info(null, command.usageMsg, true)
reporter.info(null, compiler.pluginOptionsHelp, true)
}
else {
val run = new compiler.Run()
run compile command.files
reporter.printSummary()
}
}
}
catch {
case FatalError(msg) =>
reporter.error(null, "fatal error: " + msg)
case ex if compiler.opt.richExes =>
compiler.logThrowable(ex)
throw ex
}
}
}
def main(args: Array[String]) {
process(args)
sys.exit(if (reporter.hasErrors) 1 else 0)
}
}
|
