Comment source code

[rootmeanclaire]

If the source was documented, then it would be easier for the community to create pull requests for their potential additions.

[rootmeanclaire]

[milankinen]

Better?

package org.arnoldc

import java.io.FileOutputStream

/**
 * This is the entry class of this program.
 */
object ArnoldC {
  /**
   * Program main function which reads the source file and
   * generates the bytecode. Can also run the compiled program
   * if "-run" option is given.
   */
  def main(args: Array[String]) {
    // if there is no filename then print usage
    if (args.length < 1) {
      println("Usage: ArnoldC [-run] [FileToSourceCode]")
      return
    }

    // get source code from filename
    val filename = getFilNameFromArgs(args)
    val sourceCode = scala.io.Source.fromFile(filename).mkString
    val a = new ArnoldGenerator()
    val classFilename = if (filename.contains('.')) {
      filename.replaceAll("\\.[^.]*$", "")
    }
    else {
      filename
    }
    // generate bytecode 
    val bytecode = a.generate(sourceCode, classFilename)

    // write bytecode to class file
    val out = new FileOutputStream(classFilename + ".class")
    out.write(bytecode)
    out.close()

    // process options
    processOption(getCommandFromArgs(args), classFilename)

  }

  /**
   * Gets the filename from program arguments. If there is no arguments
   * then throws an exception.
   */
  def getFilNameFromArgs(args:Array[String]):String = args.length match {
    case 1 => args(0)
    case 2 => args(1)
    case _ => throw new RuntimeException("WHAT THE FUCK DID I DO WRONG!")
  }

  /**
   * Gets the additional command from program args. If there is 2 arguments
   * then command is the first one, otherwise command is empty. If there is 
   * no arguments, then throws an exeption.
   */
  def getCommandFromArgs(args:Array[String]):String = args.length match {
    case 2 => args(0)
    case 1 => ""
    case _ => throw new RuntimeException("WHAT THE FUCK DID I DO WRONG!")
  }

  /**
   * If "-run" command is given, then executes the given class file. Otherwise
   * does nothing.
   */
  def processOption(command:String, argFunc: => String):Unit = command match {
    case "-run" => Executor.execute(argFunc)
    case _ =>
  }

}

[rootmeanclaire]

Thanks, but I guess what I want is to know how to navigate through the many files of source code.