Package com.scriptbasic.utility.functions

Class ErrorFunctions

java.lang.Object

com.scriptbasic.utility.functions.ErrorFunctions

public class ErrorFunctions
extends Object

Method Summary

Modifier and Type	Method	Description
static void	asserT(String s, Boolean b)	Throw an exception causing BASIC runtime error if the assertion fails.
static void	error(String s)	Throw an exception causing BASIC runtime error.

Methods inherited from class java.lang.Object

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

Method Details

error

public static void error(String s)
                  throws ScriptBasicException

Throw an exception causing BASIC runtime error. This method can be called directly from BASIC to stop the interpreter with an error condition.

Parameters:

s - the message in the error

Throws:

ScriptBasicException - always

asserT

public static void asserT(String s,
 Boolean b)
                   throws ScriptBasicException

Throw an exception causing BASIC runtime error if the assertion fails. This can be used in the BASIC program to test preconditions and stop the execution of the BASIC program if the condition fails. For example you can write

 assert("test that the parameter starts with the required prefix", startsWith(s,prefix))
 

In the example above if the variable s starts with the string contained in the variable prefix then the execution of the BASIC program goes on, otherwise the function causes BASIC runtime error.

Parameters:

s - parameter

b - parameter

Throws:

ScriptBasicException - in case of exception