Class EvaluationVisitor

Namespace

NCalc.Visitors

Assembly

NCalc.dll

Class responsible to evaluating LogicalExpression objects into CLR objects.

public class EvaluationVisitor : ILogicalExpressionVisitor<object?>

Inheritance

object

EvaluationVisitor

Implements

ILogicalExpressionVisitor<object>

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Constructors

EvaluationVisitor(Expression)

public EvaluationVisitor(Expression parentExpression)

Parameters

parentExpression Expression

EvaluationVisitor(ExpressionContext)

public EvaluationVisitor(ExpressionContext context)

Parameters

context ExpressionContext

Methods

Compare(object?, object?, ComparisonType)

protected bool Compare(object? a, object? b, ComparisonType comparisonType)

Parameters

a object

b object

comparisonType ComparisonType

Returns

bool

Evaluate(LogicalExpression)

protected object? Evaluate(LogicalExpression expression)

Parameters

expression LogicalExpression

Returns

object

Evaluate(LogicalExpression, CancellationToken)

protected object? Evaluate(LogicalExpression expression, CancellationToken cancellationToken = default)

Parameters

expression LogicalExpression

cancellationToken CancellationToken

Returns

object

OnEvaluateFunction(string, FunctionArgs)

protected void OnEvaluateFunction(string name, FunctionArgs args)

Parameters

name string

args FunctionArgs

OnEvaluateParameter(string, ParameterArgs)

protected void OnEvaluateParameter(string name, ParameterArgs args)

Parameters

name string

args ParameterArgs

OnUpdateParameter(string, UpdateParameterArgs)

protected void OnUpdateParameter(string name, UpdateParameterArgs args)

Parameters

name string

args UpdateParameterArgs

SetTaskValue(ExpressionTask<object?>, object?)

protected object? SetTaskValue(ExpressionTask<object?> task, object? value)

Parameters

task ExpressionTask<object>

value object

Returns

object

Visit(BinaryExpression, ExpressionTask<object?>, CancellationToken)

public virtual object? Visit(BinaryExpression expression, ExpressionTask<object?> task, CancellationToken cancellationToken = default)

Parameters

expression BinaryExpression

task ExpressionTask<object>

cancellationToken CancellationToken

Returns

object

Visit(BinaryExpression, CancellationToken)

public virtual object? Visit(BinaryExpression expression, CancellationToken cancellationToken = default)

Parameters

expression BinaryExpression

cancellationToken CancellationToken

Returns

object

Visit(ExpressionGroup, ExpressionTask<object?>, CancellationToken)

public virtual object? Visit(ExpressionGroup group, ExpressionTask<object?> task, CancellationToken cancellationToken = default)

Parameters

group ExpressionGroup

task ExpressionTask<object>

cancellationToken CancellationToken

Returns

object

Visit(ExpressionGroup, CancellationToken)

public object? Visit(ExpressionGroup group, CancellationToken cancellationToken = default)

Parameters

group ExpressionGroup

cancellationToken CancellationToken

Returns

object

Visit(FunctionCall, ExpressionTask<object?>, CancellationToken)

public virtual object? Visit(FunctionCall function, ExpressionTask<object?> task, CancellationToken cancellationToken = default)

Parameters

function FunctionCall

task ExpressionTask<object>

cancellationToken CancellationToken

Returns

object

Visit(FunctionCall, CancellationToken)

public virtual object? Visit(FunctionCall functionCall, CancellationToken cancellationToken = default)

Parameters

functionCall FunctionCall

cancellationToken CancellationToken

Returns

object

Visit(FunctionExpression, ExpressionTask<object?>, CancellationToken)

public virtual object? Visit(FunctionExpression expression, ExpressionTask<object?> task, CancellationToken cancellationToken = default)

Parameters

expression FunctionExpression

task ExpressionTask<object>

cancellationToken CancellationToken

Returns

object

Visit(FunctionExpression, CancellationToken)

public virtual object? Visit(FunctionExpression expression, CancellationToken cancellationToken = default)

Parameters

expression FunctionExpression

cancellationToken CancellationToken

Returns

object

Visit(Identifier, ExpressionTask<object?>, CancellationToken)

public virtual object? Visit(Identifier identifier, ExpressionTask<object?> task, CancellationToken cancellationToken = default)

Parameters

identifier Identifier

task ExpressionTask<object>

cancellationToken CancellationToken

Returns

object

Visit(Identifier, CancellationToken)

public virtual object? Visit(Identifier identifier, CancellationToken cancellationToken = default)

Parameters

identifier Identifier

cancellationToken CancellationToken

Returns

object

Visit(LogicalExpressionList, ExpressionTask<object?>, CancellationToken)

public virtual object? Visit(LogicalExpressionList list, ExpressionTask<object?> task, CancellationToken cancellationToken = default)

Parameters

list LogicalExpressionList

task ExpressionTask<object>

cancellationToken CancellationToken

Returns

object

Visit(LogicalExpressionList, CancellationToken)

public virtual object Visit(LogicalExpressionList list, CancellationToken cancellationToken = default)

Parameters

list LogicalExpressionList

cancellationToken CancellationToken

Returns

object

Visit(PercentExpression, ExpressionTask<object?>, CancellationToken)

public virtual object? Visit(PercentExpression expression, ExpressionTask<object?> task, CancellationToken cancellationToken = default)

Parameters

expression PercentExpression

task ExpressionTask<object>

cancellationToken CancellationToken

Returns

object

Visit(PercentExpression, CancellationToken)

public virtual object? Visit(PercentExpression expression, CancellationToken cancellationToken = default)

Parameters

expression PercentExpression

cancellationToken CancellationToken

Returns

object

Visit(StatementSequence, ExpressionTask<object?>, CancellationToken)

public object? Visit(StatementSequence seq, ExpressionTask<object?> task, CancellationToken cancellationToken = default)

Parameters

seq StatementSequence

task ExpressionTask<object>

cancellationToken CancellationToken

Returns

object

Visit(StatementSequence, CancellationToken)

public object? Visit(StatementSequence seq, CancellationToken cancellationToken = default)

Parameters

seq StatementSequence

cancellationToken CancellationToken

Returns

object

Visit(TernaryExpression, ExpressionTask<object?>, CancellationToken)

public virtual object? Visit(TernaryExpression expression, ExpressionTask<object?> task, CancellationToken cancellationToken = default)

Parameters

expression TernaryExpression

task ExpressionTask<object>

cancellationToken CancellationToken

Returns

object

Visit(TernaryExpression, CancellationToken)

public virtual object? Visit(TernaryExpression expression, CancellationToken cancellationToken = default)

Parameters

expression TernaryExpression

cancellationToken CancellationToken

Returns

object

Visit(UnaryExpression, ExpressionTask<object?>, CancellationToken)

public virtual object? Visit(UnaryExpression expression, ExpressionTask<object?> task, CancellationToken cancellationToken = default)

Parameters

expression UnaryExpression

task ExpressionTask<object>

cancellationToken CancellationToken

Returns

object

Visit(UnaryExpression, CancellationToken)

public virtual object? Visit(UnaryExpression expression, CancellationToken cancellationToken = default)

Parameters

expression UnaryExpression

cancellationToken CancellationToken

Returns

object

Visit(ValueExpression, ExpressionTask<object?>, CancellationToken)

public virtual object? Visit(ValueExpression expression, ExpressionTask<object?> task, CancellationToken cancellationToken = default)

Parameters

expression ValueExpression

task ExpressionTask<object>

cancellationToken CancellationToken

Returns

object

Visit(ValueExpression, CancellationToken)

public virtual object? Visit(ValueExpression expression, CancellationToken cancellationToken = default)

Parameters

expression ValueExpression

cancellationToken CancellationToken

Returns

object