Namespace ZptSharp.Expressions.PathExpressions

Classes

CannotParsePathException

Thrown when an instance of IParsesPathExpression fails to parse an instance of PathExpression.

DecoratorBasedObjectValueProvider

An implementation of IGetsValueFromObject which builds and delegates to a service using a combination of the decorator & chain of responsibility patterns.

That service ultimately implements the same interface as this class but provides logic declared in many other classes.

DefinedVariablesOnlyExpressionContextWrappingDecorator

Implementation of IGetsValueFromObject which uses only defined (global or local) variables to resolve values from the expression context. Similar to ExpressionContextWrappingDecorator.

DefinedVariablesOnlyPathExpressionEvaluator

An implementation of IEvaluatesExpression which evaluates TALES 'var' expressions.

A chain of responsibility class which get values from object that implement System.Dynamic.IDynamicMetaObjectProvider (IE: which are "dynamic objects"). If the object does not implement that interface then the call is delegated straight to the wrapped implementation.

EnumerableValueProvider

An implementation of IGetsValueFromObject which works for types which implement System.Collections.IEnumerable. This allows accessing their items by zero-based numeric index.

ExpressionContextWrappingDecorator

A decorator class for the IGetsValueFromObject service, which detects instances of ExpressionContext and wraps them with an instance of NamedTalesValueForExpressionContextAdapter, so that subsequent classes in the decorator/chain may treat them as IGetsNamedTalesValue.

FailureValueProvider

An implementation of IGetsValueFromObject which returns a failure result. This should always be the 'last' link in a chain of responsibility/decorator stack. If the execution reaches this class then getting a value has failed.

GlobalVariableOnlyExpressionContextWrappingDecorator

Implementation of IGetsValueFromObject which uses only global variables to resolve values from the expression context. Similar to ExpressionContextWrappingDecorator.

GlobalVariablesOnlyPathExpressionEvaluator

An implementation of IEvaluatesExpression which evaluates TALES 'global' expressions.

IntegerKeyedDictionaryValueProvider

A chain of responsibility class which get values from any objects which implement any form of IDictionary<int,T>. If they implement a dictionary of integer and 'any type' then we may read values from them based upon their numeric keys.

LocalVariableOnlyExpressionContextWrappingDecorator

Implementation of IGetsValueFromObject which uses only local variables to resolve values from the expression context. Similar to ExpressionContextWrappingDecorator.

LocalVariablesOnlyPathExpressionEvaluator

An implementation of IEvaluatesExpression which evaluates TALES 'local' expressions.

NamedTalesValueProvider

A chain of responsibility class which detects when the object from which to get a value is an implementation of IGetsNamedTalesValue. If it is, then its built-in functionality is used to get the value.

PathEvaluationContext

A model which represents the context of evaluating a part of a path expression.

PathExpression

Model for a path expression, providing access to the individual parts.

PathExpression.AlternateExpression

Model for an alternate expression, which would be part of a larger PathExpression.

PathExpression.PathPart

Base type for a single part of a path expression.

PathExpressionEvaluationRequest

Represents a request to evaluate a path expression. This could actually be a number of separate but very similarly-behaved expression types.

PathExpressionEvaluator

An implementation of IEvaluatesExpression which evaluates TALES 'path' expressions.

PathExpressionParser

Default implementation of IParsesPathExpression.

PathExpressionRequestEvaluator

Implementation of IEvaluatesPathExpressionRequest which evaluates path expression requests.

PathWalkingExpressionEvaluator

An implementation of IWalksAndEvaluatesPathExpression which walks each part of the path in sequence, using the specified context as a basis. At each step during traversal, an IGetsValueFromObject is used to get the actual traversed value.

PathWalkingExpressionEvaluatorFactory

Factory for instances of IWalksAndEvaluatesPathExpression. Specifically this deals with the creation of an appropriate instance of DecoratorBasedObjectValueProvider, based on the provided RootScopeLimitation.

ReflectionObjectValueProvider

Implementation of IGetsValueFromObject which uses reflection to get values from public properties, methods or fields of objects.

ReflectionValueReader

Implementation of IGetsValueFromReflection which uses plain/uncached reflection.

StringKeyedDictionaryValueProvider

A chain of responsibility class which get values from any objects which implement any form of IDictionary<string,T>. If they implement a dictionary of string and 'any type' then we may read values from them based upon their string keys.

TemplateDirectoryValueProvider

A chain of responsibility class which get values from an objects of type TemplateDirectory. If the input object is a template directory then the output will either be a ZPT document adapter created via IGetsMetalDocumentAdapter, or it will be another template directory (representing directory traversal) or an exception will be raised.

Enums

RootScopeLimitation

Enumerates the manners in which an ExpressionContext may be used to provide the root of a path expression.