Package com.blackrook.rookscript.functions

Enum Class SystemFunctions

java.lang.Object

java.lang.Enum<SystemFunctions>

com.blackrook.rookscript.functions.SystemFunctions

All Implemented Interfaces:

ScriptFunctionType, Serializable, Comparable<SystemFunctions>, java.lang.constant.Constable

public enum SystemFunctions
extends Enum<SystemFunctions>
implements ScriptFunctionType

Script common functions for system level stuff, like process creation, control, and environment stuff.

Since:

1.7.0

Author:

Matthew Tropiano

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Nested classes/interfaces inherited from interface com.blackrook.rookscript.lang.ScriptFunctionType

ScriptFunctionType.Usage

Enum Constant Summary

Enum Constants

Enum Constant	Description
ENVVARS
EXEC
EXECRESULT
PROPERTIES

Method Summary

Modifier and Type	Method	Description
static final ScriptFunctionResolver	createResolver()
abstract boolean	execute(ScriptInstance scriptInstance, ScriptValue returnValue)	Executes this function.
int	getParameterCount()
ScriptFunctionType.Usage	getUsage()
protected abstract ScriptFunctionType.Usage	usage()
static SystemFunctions	valueOf(String name)	Returns the enum constant of this class with the specified name.
static SystemFunctions[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.blackrook.rookscript.lang.ScriptFunctionType

name

Enum Constant Details

PROPERTIES

public static final SystemFunctions PROPERTIES

ENVVARS

public static final SystemFunctions ENVVARS

EXEC

public static final SystemFunctions EXEC

EXECRESULT

public static final SystemFunctions EXECRESULT

Method Details

values

public static SystemFunctions[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static SystemFunctions valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null

createResolver

public static final ScriptFunctionResolver createResolver()

Returns:

a function resolver that handles all of the functions in this enum.

getParameterCount

public int getParameterCount()

Specified by:

getParameterCount in interface ScriptFunctionType

Returns:

the total amount of parameters this takes.

getUsage

public ScriptFunctionType.Usage getUsage()

Specified by:

getUsage in interface ScriptFunctionType

Returns:

this function's usage instructions.

execute

public abstract boolean execute(ScriptInstance scriptInstance,
 ScriptValue returnValue)

Description copied from interface: ScriptFunctionType

Executes this function. The value in returnValue is automatically pushed onto the stack after the call. If a Throwable is thrown from this call, it is wrapped in a ScriptExecutionException. ScriptExecutionExceptions are thrown as-is.

Specified by:

execute in interface ScriptFunctionType

Parameters:

scriptInstance - the originating script instance.

returnValue - the value pushed to the stack on return.

Returns:

if false, this halts script execution, else if true, continue.

usage

protected abstract ScriptFunctionType.Usage usage()