Scala example source code file (ConstructorBuilder.scala)

This example Scala source code file (ConstructorBuilder.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

array, array, constructorinfo, defineparameter, getilgenerator, ilgenerator, ilgenerator, int, int, io, parameterbuilder, parameterbuilder, string, type, visitable

The Scala ConstructorBuilder.scala source code

/*
 * System.Reflection.Emit-like API for writing .NET assemblies to MSIL
 */


package ch.epfl.lamp.compiler.msil.emit

import ch.epfl.lamp.compiler.msil.ConstructorInfo
import ch.epfl.lamp.compiler.msil.Type
import java.io.IOException

/**
 * Defines and represents a constructor of a dynamic class.
 * ConstructorBuilder is used to fully describe a constructor in
 * Microsoft intermediate language (MSIL), including the name, attributes,
 * signature, and constructor body. It is used in conjunction with the
 * TypeBuilder class to create classes at run time. Call DefineConstructor
 * to get an instance of ConstructorBuilder.
 *
 * @author Nikolay Mihaylov
 * @version 1.0
 */
class ConstructorBuilder(declType: Type, attrs: Int, paramTypes: Array[Type])
      extends ConstructorInfo(declType, attrs, paramTypes)
      with ICustomAttributeSetter
      with Visitable
{

    //##########################################################################
    // public interface

    /** Defines a parameter of this constructor. */
    def DefineParameter(pos: Int, attr: Int, name: String): ParameterBuilder = {
	val param = new ParameterBuilder(name, params(pos).ParameterType, attr, pos)
	params(pos) = param
	return param
    }

    /** Returns an ILGenerator for this constructor. */
    def GetILGenerator(): ILGenerator = {
	return ilGenerator
    }

    /** Sets a custom attribute. */
    def SetCustomAttribute(constr: ConstructorInfo, value: Array[Byte]) {
	addCustomAttribute(constr, value)
    }

    //##########################################################################

    /** The apply method for a visitor. */
    @throws(classOf[IOException])
    def apply(v: Visitor) {
	v.caseConstructorBuilder(this)
    }

    //##########################################################################

    // the Intermediate Language Generator
    // it contains the method's body
    protected var ilGenerator: ILGenerator = new ILGenerator(this)

    //##########################################################################
}