Class TXQValueFunction

Unit

xquery

Declaration

type TXQValueFunction = class(TXQValue)

Description

A function. Anonymous or a named reference. Also used to store type information

Hierarchy

• TInterfacedObject
• TXQValue
• TXQValueFunction

Overview

Fields

	name: string;
	namespaceURL: string;
	namespacePrefix: string;
	parameters: array of TXQFunctionParameter;
	resulttype: txqtermsequencetype;
	body: TXQTerm;
	ownsTerms: boolean;
	context: TXQEvaluationContext;
	annotations: TXQAnnotations;

Methods

	constructor create(aterm: TXQTerm = nil); reintroduce; virtual;
	procedure FreeInstance; override;
	destructor Destroy; override;
	class function classKind: TXQValueKind; override;
	function toBooleanEffective: boolean; override;
	function evaluate(const outerContext: TXQEvaluationContext; const term: TXQTerm): IXQValue;
	function evaluateInContext(var inContext: TXQEvaluationContext; const term: TXQTerm): IXQValue;
	procedure contextOverrideParameterNames(const inContext: TXQEvaluationContext; count: integer);
	function directClone: TXQValue;
	function clone: IXQValue; override;
	function toXQuery: string; override;
	function debugAsStringWithTypeAnnotation(textOnly: boolean=true): string;
	procedure assignCopiedTerms(const func: TXQValueFunction);
	procedure visit(visitor: TXQTerm_Visitor);

Description

Fields

	name: string;

	namespaceURL: string;

	namespacePrefix: string;

	parameters: array of TXQFunctionParameter;

	resulttype: txqtermsequencetype;

	body: TXQTerm;

	ownsTerms: boolean;

	context: TXQEvaluationContext;

	annotations: TXQAnnotations;

Methods

	constructor create(aterm: TXQTerm = nil); reintroduce; virtual;

	procedure FreeInstance; override;

	destructor Destroy; override;

	class function classKind: TXQValueKind; override;

	function toBooleanEffective: boolean; override;

	function evaluate(const outerContext: TXQEvaluationContext; const term: TXQTerm): IXQValue;
Calls the function with the given arguments. Evaluation context is the context the function was defined in.

	function evaluateInContext(var inContext: TXQEvaluationContext; const term: TXQTerm): IXQValue;
Calls the function with the given arguments. Evaluation context is the context the function was defined in.

	procedure contextOverrideParameterNames(const inContext: TXQEvaluationContext; count: integer);

	function directClone: TXQValue;

	function clone: IXQValue; override;

	function toXQuery: string; override;

	function debugAsStringWithTypeAnnotation(textOnly: boolean=true): string;

	procedure assignCopiedTerms(const func: TXQValueFunction);

	procedure visit(visitor: TXQTerm_Visitor);