blob: eaafd7f6e0c4ea08a9eeec279c4403de5c295c71 (
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
|
/* NSC -- new Scala compiler
* Copyright 2005-2007 LAMP/EPFL
* @author Martin Odersky
*/
// $Id$
package scala.tools.nsc
/** A class representing command line info for scalac */
class CompilerCommand(arguments: List[String], val settings: Settings,
error: String => Unit, interactive: Boolean) {
private var fs: List[String] = List()
/** All files to compile */
def files: List[String] = fs.reverse
/** The name of the command */
val cmdName = "scalac"
/** The file extension of files that the compiler can process */
val fileEnding = ".scala"
private val helpSyntaxColumnWidth: Int =
Iterable.max(settings.allSettings map (_.helpSyntax.length))
private def format(s: String): String = {
val buf = new StringBuilder(s)
var i = s.length
while (i < helpSyntaxColumnWidth) { buf.append(' '); i += 1 }
buf.toString()
}
/** A message explaining usage and options */
def usageMsg: String = {
settings.allSettings
.filter(setting =>
setting.isStandard &&
(settings.doc.value == setting.isDocOption))
.map(setting =>
format(setting.helpSyntax) + " " + setting.helpDescription)
.mkString("Usage: " + cmdName + " <options | source files>\n" +
"where possible standard options include:\n ",
"\n ",
"\n")
}
/** A message explaining usage and options */
def xusageMsg: String = {
settings.allSettings
.filter(setting =>
!setting.isStandard &&
(settings.doc.value == setting.isDocOption))
.map(setting =>
format(setting.helpSyntax) + " " + setting.helpDescription)
.mkString("Possible non-standard options include:\n ",
"\n ",
"\n")
}
// initialization
var args = arguments
var ok = true
while (!args.isEmpty && ok) {
if (args.head startsWith "-") {
if (interactive) {
error("no options can be given in interactive mode")
ok = false
} else {
val args0 = args
for (setting <- settings.allSettings)
if (args eq args0)
args = setting.tryToSet(args)
if (args eq args0) {
error("bad option: '" + args.head + "'")
ok = false
} else
ok = settings.checkDependencies
}
} else if (settings.Xscript.value || args.head.endsWith(fileEnding)) {
fs = args.head :: fs
args = args.tail
} else if (args.head.length == 0) {//quick fix
args = args.tail
} else {
error("don't know what to do with " + args.head)
ok = false
}
}
}
|
