net.sf.drawj2d.cmd

Class AssertCmd

java.lang.Object

net.sf.drawj2d.cmd.AssertCmd

All Implemented Interfaces:

Command

public class AssertCmd
extends java.lang.Object
implements Command

AssertCmd implements the "assert" command, which verifies that an assertion is fulfilled. Actually a mathematical expression is evaluated. If it returns not 1 (== true), an exception is raised. assert "$h > 200" InputCheck

Constructor Summary

Constructors

Constructor and Description
AssertCmd()

Method Summary

Modifier and Type	Method and Description
Thing	cmdCode(Interp interp, Thing[] argv) The cmdCode method takes an interpreter and an array of Things, performs some calculations, and returns a Thing representing the computed value, or null.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AssertCmd

public AssertCmd()

Method Detail

cmdCode

public Thing cmdCode(Interp interp,
                     Thing[] argv)
              throws HeclException

Description copied from interface: Command

The cmdCode method takes an interpreter and an array of Things, performs some calculations, and returns a Thing representing the computed value, or null.

Specified by:

cmdCode in interface Command

Parameters:

interp - an Interp value

argv - a Thing[] value

Returns:

A Thing representing the computed value, or null.

Throws:

HeclException - if an error occurs