Class BooleanValueConverter

Implementation of ICoercesValueToBoolean which converts a value to a boolean.

Inheritance
System.Object
BooleanValueConverter
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: ZptSharp.Expressions.NotExpressions
Assembly: ZptSharp.dll
Syntax
public class BooleanValueConverter : ICoercesValueToBoolean

Constructors

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BooleanValueConverter(IInterpretsExpressionResult)

Initializes a new instance of the BooleanValueConverter class.

Declaration
public BooleanValueConverter(IInterpretsExpressionResult resultInterpreter)
Parameters
Type Name Description
IInterpretsExpressionResult resultInterpreter

Result interpreter.

Methods

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CoerceToBoolean(Object)

Gets the boolean representation of the specified value, for the purpose of a not expression.

Declaration
public bool CoerceToBoolean(object value)
Parameters
Type Name Description
System.Object value

The value to test for 'truthiness'.
Returns
Type Description
System.Boolean

A boolean representation of the value.
Remarks

The ZPT standard states that the following values are treated as false by a not expression.

  • An instance of AbortZptActionToken.
  • A null reference.
  • The value System.Boolean false.
  • Any value where System.Object.Equals(System.Object, System.Object) treats that value as equal to zero.
  • Empty enumerables, IE any object which implements System.Collections.IEnumerable which has no items.

All other values are treated as true by the ZPT specification.

Implements