/* NSC -- new Scala compiler
* Copyright 2007 LAMP/EPFL
* @author Lex Spoon
*/
package scala.tools.nsc
/** A command for ScriptRunner */
class GenericRunnerCommand(
args: List[String],
override val settings: GenericRunnerSettings)
extends CompilerCommand(args, settings) {
def this(args: List[String], error: String => Unit) =
this(args, new GenericRunnerSettings(error))
def this(args: List[String]) =
this(args, str => Console.println("Error: " + str))
/** name of the associated compiler command */
override val cmdName = "scala"
val compCmdName = "scalac"
// change CompilerCommand behavior
override def shouldProcessArguments: Boolean = false
/** thingToRun: What to run. If it is None, then the interpreter should be started
* arguments: Arguments to pass to the object or script to run
*/
val (thingToRun, arguments) = settings.processArguments(args, false)._2 match {
case Nil => (None, Nil)
case hd :: tl => (Some(hd), tl)
}
override def usageMsg ="""
Usage: %s <options> [<torun> <arguments>]
or %s <options> [-jar <jarfile> <arguments>]
All options to %s are allowed. See %s -help.
<torun>, if present, is an object or script file to run.
-jar <jarfile>, if present, uses the 'Main-Class' attribute
in the manifest file to determine the object to run.
If neither <torun> nor -jar <jarfile> are present, run an
interactive shell.
Option -howtorun allows explicitly specifying how to run <torun>:
script: it is a script file
object: it is an object name
guess: (the default) try to guess
Option -i requests that a file be pre-loaded. It is only
meaningful for interactive shells.
Option -e requests that its argument be executed as Scala code.
Option -savecompiled requests that the compiled script be saved
for future use.
Option -nocompdaemon requests that the fsc offline compiler not be used.
Option -Dproperty=value sets a Java system property.
""".format(cmdName, cmdName, compCmdName, compCmdName)
}
