org.serversass.ast

Class Value

java.lang.Object

org.serversass.ast.Value

All Implemented Interfaces:

Expression

public class Value
extends Object
implements Expression

Represents a plain value.

Constructor Summary

Constructors

Constructor and Description
Value(String contents) Creates a new value representing the given contents a value.

Method Summary

Modifier and Type	Method and Description
Expression	eval(Scope scope, Generator gen) If possible the expression is evaluated and a simplified expression is returned.
String	getContents() Returns the represented value
boolean	isConstant() Determines if this expression is constant or if it depends on variables.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Value

public Value(String contents)

Creates a new value representing the given contents a value.

Parameters:

contents - the value to be represented

Method Detail

getContents

public String getContents()

Returns the represented value

Returns:

the value to represent

toString

public String toString()

Overrides:

toString in class Object

isConstant

public boolean isConstant()

Description copied from interface: Expression

Determines if this expression is constant or if it depends on variables.

Specified by:

isConstant in interface Expression

Returns:

true if the expression is constant, false otherwise

eval

public Expression eval(Scope scope,
                       Generator gen)

Description copied from interface: Expression

If possible the expression is evaluated and a simplified expression is returned.

Specified by:

eval in interface Expression

Parameters:

scope - the scope used to resolve variables.

gen - the generator used to evaluate functions

Returns:

a possibly simplified version of the expression