Class Evaluation

Namespace

BOOSE

Assembly

BOOSE.dll

An evaluation encompasses all things that can have a value, such as variables, expressions and conditions used in loops and ifs.

public class Evaluation : Command, ICommand

Inheritance

object

Command

Evaluation

Implements

ICommand

Derived

Array

Boolean

Int

Real

Write

Inherited Members

Command.IsDouble

Command.program

Command.parameterList

Command.parameters

Command.paramsint

Command.Program

Command.Name

Command.ParameterList

Command.Parameters

Command.Paramsint

Command.Set(StoredProgram, string)

Command.ProcessParameters(string)

Command.ToString()

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

Constructors

Evaluation()

Blank constructor,

public Evaluation()

Fields

evaluatedExpression

protected string evaluatedExpression

Field Value

string

expression

protected string expression

Field Value

string

value

protected int value

Field Value

int

varName

protected string varName

Field Value

string

Properties

Expression

The right hand side of an expression in a variable initialisetion or variable change of value, or a boolean in a conditional command

public string Expression { get; set; }

Property Value

string

Local

Is this a local variable/method variable? This is so that variables of the same name can exist in defferent scopes.

public bool Local { get; set; }

Property Value

bool

Value

Value of variable once the expression has been calculated. Virtual so that variables of other types can override it.

public virtual int Value { get; set; }

Property Value

int

VarName

Name of variable as a string (as opposed to Name which is the name of the class, such as Int, Real or Boolean).

public string VarName { get; set; }

Property Value

string

Methods

CheckParameters(string[])

Does nothing in this case.

public override void CheckParameters(string[] parameterList)

Parameters

parameterList string[]

Compile()

public override void Compile()

Execute()

Evaluate any expression and store the evaluatedExpression result in instance data for sub classes. Expressions are evaluated at runtime by a StoredProgram object (Program)

public override void Execute()

ProcessExpression(string)

Takes a complete expression with left hand side and right hand side and returns only the right hand side (i.e. the bit after the =).

public virtual string ProcessExpression(string Expression)

Parameters

Expression string

Expression to evaluate

Returns

string

Right hand side of expression (the bit after the =)

Exceptions

VarException

Var exception if it isn't an expression