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/* NSC -- new Scala compiler
* Copyright 2007 LAMP/EPFL
* @author Lex Spoon
*/
// $Id$
package scala.tools.nsc
/** A command for ScriptRunner */
class GenericRunnerCommand(
allargs: List[String],
override val settings: GenericRunnerSettings,
error: String => Unit)
extends CompilerCommand(allargs, settings, error, false, false)
{
def this(allargs: List[String], error: String=>Unit) =
this(allargs, new GenericRunnerSettings(error), error)
def this(allargs: List[String]) =
this(allargs, str => Console.println("Error: " + str))
/** name of the associated compiler command */
val compCmdName = "scalac"
/** What to run. If it is None, then the interpreter should be started */
var thingToRun: Option[String] = None
/** Arguments to pass to the object or script to run */
var arguments: List[String] = Nil
override protected def processArguments() {
var args = allargs
while (!args.isEmpty && ok && args.head.startsWith("-")) {
val args0 = args
args = settings parseParams args
if (args eq args0) {
error("bad option: '" + args.head + "'")
ok = false
}
}
if (!args.isEmpty) {
thingToRun = Some(args.head)
arguments = args.tail
}
}
// we can safely call processArguments since we passed the superclass shouldProcessArguments=false
processArguments()
override def usageMsg = {
cmdName + " [ <option> ]... [<torun> <arguments>]\n" +
"\n" +
"All options to "+compCmdName+" are allowed. See "+compCmdName+" -help.\n" +
"\n" +
"<torun>, if present, is an object or script file to run.\n" +
"If no <torun> is present, run an interactive shell.\n" +
"\n" +
"Option -howtorun allows explicitly specifying how to run <torun>:\n" +
" script: it is a script file\n" +
" object: it is an object name\n" +
" guess: (the default) try to guess\n" +
"\n" +
"Option -i requests that a file be pre-loaded. It is only\n" +
"meaningful for interactive shells.\n" +
"\n" +
"Option -e requests that its argument be executed as Scala code.\n" +
"\n" +
"Option -savecompiled requests that the compiled script be saved\n" +
"for future use.\n" +
"\n" +
"Option -nocompdaemon requests that the fsc offline compiler not be used.\n" +
"\n" +
"Option -Dproperty=value sets a Java system property.\n"
}
}
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