System.Bindings.EvalProtocol

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Contains interfaces that define compiled binding expressions, custom scopes, custom wrappers, dynamic instances of a member within a dynamic group, wrapped resulting types, Left Values, wrappers considered as placeholders for physical values, scope enumerators, scope symbols, immediate values, and related interfaces. It also contains classes that implement custom wrapper getter callbacks, location wrappers, scope symbols, subscription notifications, value wrappers, and so on.

Package	bindengine280.bpl

Classes

EEvaluatorError	Exception class for signaling errors in evaluation.
EPlaceholderError	Exception class for signaling errors in the placeholder wrappers' functionality.
EWrapperError	Exception class for signaling errors in the behavior of a wrapper.
IArguments	Used for passing arguments to a wrapper at evaluation time.
IChild	Accesses information about wrapped objects members.
ICompiledBinding	Permits the evaluation of a compiled expression.
ICompiledBindingWrappers	ICompiledBindingWrappers is an interface that provides access to wrappers.
ICustomScope	A custom scope that permits the user to return a custom wrapper for fake object members.
ICustomWrapper	Provides the engine with information about the syntactic form of the wrapped face object member and the user routine that calculates the value for the fake member.
IDebugBinding	Internally used for intercepting the order of executing engine operations.
IDynamicGroup	Allows for lazy determination of the object member's value.
IDynamicInstance	Represents a dynamic instance of a member within a dynamic group.
IGroup	Stores the wrapped resulting values.
IInvokable	Defines a function that possibly returns a location for bidirectional expressions.
ILocation	Defines an lvalue (Left Value) that can be extracted and stored.
IPlaceholder	Defines a wrapper that is considered a placeholder when it does not wrap around a physical value.
IPreparedWrappers	Persists prepared wrappers between repeated evaluations of the same expression.
IRecordChild	Interface that accesses information about the parent of a wrapped member and its RTTI.
IRecordPlaceholder
IRttiChild	Provides access to internal wrappers' parent object and to the RTTI of the member.
IScope	Represents a scope that can be looked up for wrappers.
IScopeEnumerable	Implementers of this interface make scopes have their wrappers enumerated.
IScopeEnumerator	Implementers of this interface can enumerate an enumerable scope.
IScopeEx	A scope that gives more facilities for searching not only names, but also objects.
IScopeSelf	Gives access to a wrapper that wraps the same object as the wrapper that implements this interface.
IScopeSymbols	Permits a scope to return wrappers only for the symbols present in the expression.
ISubscribable	Implemented by values that support change notifications.
ISubscription	Represents a subscription to change notifications on a subscribable object.
IValue	Abstract definition of an immediate value. This interface is used to support querying for ILocation.
IWrapper	A wrapper must implement this interface in order for the engine to recognize it as a wrapper.
IWrapperBinding	Interface that defines the prototype of a wrapper's compiled binding.
TLocationWrapper	Trivial wrapper implementation for locations.
TScopeSymbols	Trivial implementation for IScopeSymbols.
TValueWrapper	Trivial implementation for rvalues (Right Values).
TWrapperDictionary	Represents a dictionary that contains wrappers.

Routines

AdaptArguments

Creates an array of actual values from the given value wrappers.

Types

TCompiledBindingPhaseType	Describes the possible phases of the expression compiler.
TCustomWrapperGetterCallback	Callback used by the custom wrapper to determine the actual value of the fake object member that it wraps around.
TCustomWrapperType	Enumeration of custom wrapper types.
TSubscriptionNotification	Called when a subscribable object changes.