ExpressionEvaluator Class

Class used for MacroExpression evaluation.

Inheritance Hierarchy

System.Object
  CMS.MacroEngine.ExpressionEvaluator

Namespace: CMS.MacroEngine
Assembly: CMS.MacroEngine (in CMS.MacroEngine.dll) Version: 9.0.0

Syntax

public class ExpressionEvaluator

The ExpressionEvaluator type exposes the following members.

Constructors

	Name	Description
Public method	ExpressionEvaluator	Constructor.

Properties

	Name	Description
Public property	Context	Evaluation context.
Public property	Expression	Expression to evaluate.
Protected property	Children	Child expressions of the expression.
Protected property	Name	Name of the data member or method call.
Protected property	Parent	Parent expression of the expression.
Protected property	Type	Returns the expression type.
Protected property	Value	Value of the value expression (is null for expression types like method, property, etc.).

Methods

	Name	Description
Public method	Evaluate	Evaluates the expression and returns the result. Sets the result of security check into MacroEvalParameters object.
Protected method	EvaluateChild	Evaluates the child expression (uses the same context, does not create a child context).
Protected method	EvaluateInternal	Evaluates the expression and returns the result.
Protected method	GetDebugIndent	Returns the indentation of the debug item (counts deepness withing blocks {...})
Protected method	HasNumberOfChildren	Returns true if the current expression node has exactly specified number of children.
Protected method	CheckForTimeout	Checks whether the evaluation time did not exceed the specified limit.
Protected method Static member	IsEnumObjectEqual	Compares the given enumeration object with any object. If the object is not enumeration of the same type, then compares it according its values (integer enumeration with integer, otherwise as text constants).
Public method Static member	IsEqual	Returns true if first parameter is equal to the second. Handles several specialties: 1) GUID is equal also to string representation of GUID (case insensitive regardless the context setting). 2) Simple data types are equal to their ToString representation. 3) InfoObject is equal also to string constant if it's either its display name or code name. 4) Two info objects are equal when they have same object type and same ID. 5) Empty string is equal to null.
Protected method Static member	IsInfoInfoEqual	Returns true if two Info objects are equal (have same object type and ID).
Protected method	IsMethodWithName	Returns true if the type of current expression is MethodCall with specified name.
Protected method Static member	IsObjectStringEqual	Returns true if given object has code name or display name equal to specified name.
Protected method Static member	IsStringStringEqual	Returns true if the two strings are equal. Empty string is equal to null.
Protected method	UpdateEvaluationContextFromParameters	Reads all the in-line macro parameters and modifies the default evaluation context accordingly.