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/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / XmlUtils / System / Xml / Xsl / QIL / QilFunction.cs / 1305376 / QilFunction.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- using System; using System.Collections.Generic; using System.Diagnostics; namespace System.Xml.Xsl.Qil { ////// An anonymous QilExpression function node. /// ////// internal class QilFunction : QilReference { private QilNode arguments, definition, sideEffects; //----------------------------------------------- // Constructor //----------------------------------------------- ///Function is a block, so it may introduce assignments (scoped to the function body). /// Additionally, it has an argument list, which will be assigned values /// when the function is invoked. ///The XmlType property defines the expected return type of this function. /// Normally, this should be the same as its definition's types, so setting the function /// definition changes the function's types. In some rare cases, a compiler may wish to /// override the types after setting the function's definition (for example, an XQuery /// might define a function's return type to be wider than its definition would imply.) ////// Construct a node /// public QilFunction(QilNodeType nodeType, QilNode arguments, QilNode definition, QilNode sideEffects, XmlQueryType resultType) : base(nodeType) { this.arguments = arguments; this.definition = definition; this.sideEffects = sideEffects; this.xmlType = resultType; } //----------------------------------------------- // IListmethods -- override //----------------------------------------------- public override int Count { get { return 3; } } public override QilNode this[int index] { get { switch (index) { case 0: return this.arguments; case 1: return this.definition; case 2: return this.sideEffects; default: throw new IndexOutOfRangeException(); } } set { switch (index) { case 0: this.arguments = value; break; case 1: this.definition = value; break; case 2: this.sideEffects = value; break; default: throw new IndexOutOfRangeException(); } } } //----------------------------------------------- // QilFunction methods //----------------------------------------------- /// /// Formal arguments of this function. /// public QilList Arguments { get { return (QilList) this.arguments; } set { this.arguments = value; } } ////// Body of this function. /// public QilNode Definition { get { return this.definition; } set { this.definition = value; } } ////// QilNodeType.True if this function might have side-effects. /// public bool MaybeSideEffects { get { return this.sideEffects.NodeType == QilNodeType.True; } set { this.sideEffects.NodeType = value ? QilNodeType.True : QilNodeType.False; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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