Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / XmlUtils / System / Xml / Xsl / QIL / QilPatternVisitor.cs / 1305376 / QilPatternVisitor.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Generic; using System.Diagnostics; using System.Xml; using System.Xml.Schema; using System.Xml.Xsl; namespace System.Xml.Xsl.Qil { ////// Pattern visitor base internal class /// internal abstract class QilPatternVisitor : QilReplaceVisitor { private QilPatterns patterns; private int replacementCnt; private int lastReplacement; private int threshold = Int32.MaxValue; ////// Constructor. /// public QilPatternVisitor(QilPatterns patterns, QilFactory f) : base(f) { Patterns = patterns; } public QilPatterns Patterns { get { return this.patterns; } set { this.patterns = value; } } public int Threshold { get { return this.threshold; } set { this.threshold = value; } } public int ReplacementCount { get { return this.replacementCnt; } } public int LastReplacement { get { return this.lastReplacement; } } public bool Matching { get { return ReplacementCount < Threshold; } } ////// Called when a pattern has matched, but before the replacement code is executed. If this /// method returns false, then the replacement code is skipped. /// protected virtual bool AllowReplace(int pattern, QilNode original) { // If still matching patterns, if (Matching) { // Increment the replacement count this.replacementCnt++; // Save the id of this pattern in case it's the last this.lastReplacement = pattern; return true; } return false; } ////// Called when a pattern has matched and after replacement code is executed. /// protected virtual QilNode Replace(int pattern, QilNode original, QilNode replacement) { replacement.SourceLine = original.SourceLine; return replacement; } ////// Called when all replacements have already been made and all annotations are complete. /// protected virtual QilNode NoReplace(QilNode node) { return node; } //----------------------------------------------- // QilVisitor overrides //----------------------------------------------- ////// Visit children of this node first, then pattern match on the node itself. /// protected override QilNode Visit(QilNode node) { if (node == null) return VisitNull(); node = VisitChildren(node); return base.Visit(node); } // Do not edit this region #region AUTOGENERATED #region meta protected override QilNode VisitQilExpression(QilExpression n) { return NoReplace(n); } protected override QilNode VisitFunctionList(QilList n) { return NoReplace(n); } protected override QilNode VisitGlobalVariableList(QilList n) { return NoReplace(n); } protected override QilNode VisitGlobalParameterList(QilList n) { return NoReplace(n); } protected override QilNode VisitActualParameterList(QilList n) { return NoReplace(n); } protected override QilNode VisitFormalParameterList(QilList n) { return NoReplace(n); } protected override QilNode VisitSortKeyList(QilList n) { return NoReplace(n); } protected override QilNode VisitBranchList(QilList n) { return NoReplace(n); } protected override QilNode VisitOptimizeBarrier(QilUnary n) { return NoReplace(n); } protected override QilNode VisitUnknown(QilNode n) { return NoReplace(n); } #endregion #region specials protected override QilNode VisitDataSource(QilDataSource n) { return NoReplace(n); } protected override QilNode VisitNop(QilUnary n) { return NoReplace(n); } protected override QilNode VisitError(QilUnary n) { return NoReplace(n); } protected override QilNode VisitWarning(QilUnary n) { return NoReplace(n); } #endregion #region variables protected override QilNode VisitFor(QilIterator n) { return NoReplace(n); } protected override QilNode VisitForReference(QilIterator n) { return NoReplace(n); } protected override QilNode VisitLet(QilIterator n) { return NoReplace(n); } protected override QilNode VisitLetReference(QilIterator n) { return NoReplace(n); } protected override QilNode VisitParameter(QilParameter n) { return NoReplace(n); } protected override QilNode VisitParameterReference(QilParameter n) { return NoReplace(n); } protected override QilNode VisitPositionOf(QilUnary n) { return NoReplace(n); } #endregion #region literals protected override QilNode VisitTrue(QilNode n) { return NoReplace(n); } protected override QilNode VisitFalse(QilNode n) { return NoReplace(n); } protected override QilNode VisitLiteralString(QilLiteral n) { return NoReplace(n); } protected override QilNode VisitLiteralInt32(QilLiteral n) { return NoReplace(n); } protected override QilNode VisitLiteralInt64(QilLiteral n) { return NoReplace(n); } protected override QilNode VisitLiteralDouble(QilLiteral n) { return NoReplace(n); } protected override QilNode VisitLiteralDecimal(QilLiteral n) { return NoReplace(n); } protected override QilNode VisitLiteralQName(QilName n) { return NoReplace(n); } protected override QilNode VisitLiteralType(QilLiteral n) { return NoReplace(n); } protected override QilNode VisitLiteralObject(QilLiteral n) { return NoReplace(n); } #endregion #region boolean operators protected override QilNode VisitAnd(QilBinary n) { return NoReplace(n); } protected override QilNode VisitOr(QilBinary n) { return NoReplace(n); } protected override QilNode VisitNot(QilUnary n) { return NoReplace(n); } #endregion #region choice protected override QilNode VisitConditional(QilTernary n) { return NoReplace(n); } protected override QilNode VisitChoice(QilChoice n) { return NoReplace(n); } #endregion #region collection operators protected override QilNode VisitLength(QilUnary n) { return NoReplace(n); } protected override QilNode VisitSequence(QilList n) { return NoReplace(n); } protected override QilNode VisitUnion(QilBinary n) { return NoReplace(n); } protected override QilNode VisitIntersection(QilBinary n) { return NoReplace(n); } protected override QilNode VisitDifference(QilBinary n) { return NoReplace(n); } protected override QilNode VisitAverage(QilUnary n) { return NoReplace(n); } protected override QilNode VisitSum(QilUnary n) { return NoReplace(n); } protected override QilNode VisitMinimum(QilUnary n) { return NoReplace(n); } protected override QilNode VisitMaximum(QilUnary n) { return NoReplace(n); } #endregion #region arithmetic operators protected override QilNode VisitNegate(QilUnary n) { return NoReplace(n); } protected override QilNode VisitAdd(QilBinary n) { return NoReplace(n); } protected override QilNode VisitSubtract(QilBinary n) { return NoReplace(n); } protected override QilNode VisitMultiply(QilBinary n) { return NoReplace(n); } protected override QilNode VisitDivide(QilBinary n) { return NoReplace(n); } protected override QilNode VisitModulo(QilBinary n) { return NoReplace(n); } #endregion #region string operators protected override QilNode VisitStrLength(QilUnary n) { return NoReplace(n); } protected override QilNode VisitStrConcat(QilStrConcat n) { return NoReplace(n); } protected override QilNode VisitStrParseQName(QilBinary n) { return NoReplace(n); } #endregion #region value comparison operators protected override QilNode VisitNe(QilBinary n) { return NoReplace(n); } protected override QilNode VisitEq(QilBinary n) { return NoReplace(n); } protected override QilNode VisitGt(QilBinary n) { return NoReplace(n); } protected override QilNode VisitGe(QilBinary n) { return NoReplace(n); } protected override QilNode VisitLt(QilBinary n) { return NoReplace(n); } protected override QilNode VisitLe(QilBinary n) { return NoReplace(n); } #endregion #region node comparison operators protected override QilNode VisitIs(QilBinary n) { return NoReplace(n); } protected override QilNode VisitAfter(QilBinary n) { return NoReplace(n); } protected override QilNode VisitBefore(QilBinary n) { return NoReplace(n); } #endregion #region loops protected override QilNode VisitLoop(QilLoop n) { return NoReplace(n); } protected override QilNode VisitFilter(QilLoop n) { return NoReplace(n); } #endregion #region sorting protected override QilNode VisitSort(QilLoop n) { return NoReplace(n); } protected override QilNode VisitSortKey(QilSortKey n) { return NoReplace(n); } protected override QilNode VisitDocOrderDistinct(QilUnary n) { return NoReplace(n); } #endregion #region function definition and invocation protected override QilNode VisitFunction(QilFunction n) { return NoReplace(n); } protected override QilNode VisitFunctionReference(QilFunction n) { return NoReplace(n); } protected override QilNode VisitInvoke(QilInvoke n) { return NoReplace(n); } #endregion #region XML navigation protected override QilNode VisitContent(QilUnary n) { return NoReplace(n); } protected override QilNode VisitAttribute(QilBinary n) { return NoReplace(n); } protected override QilNode VisitParent(QilUnary n) { return NoReplace(n); } protected override QilNode VisitRoot(QilUnary n) { return NoReplace(n); } protected override QilNode VisitXmlContext(QilNode n) { return NoReplace(n); } protected override QilNode VisitDescendant(QilUnary n) { return NoReplace(n); } protected override QilNode VisitDescendantOrSelf(QilUnary n) { return NoReplace(n); } protected override QilNode VisitAncestor(QilUnary n) { return NoReplace(n); } protected override QilNode VisitAncestorOrSelf(QilUnary n) { return NoReplace(n); } protected override QilNode VisitPreceding(QilUnary n) { return NoReplace(n); } protected override QilNode VisitFollowingSibling(QilUnary n) { return NoReplace(n); } protected override QilNode VisitPrecedingSibling(QilUnary n) { return NoReplace(n); } protected override QilNode VisitNodeRange(QilBinary n) { return NoReplace(n); } protected override QilNode VisitDeref(QilBinary n) { return NoReplace(n); } #endregion #region XML construction protected override QilNode VisitElementCtor(QilBinary n) { return NoReplace(n); } protected override QilNode VisitAttributeCtor(QilBinary n) { return NoReplace(n); } protected override QilNode VisitCommentCtor(QilUnary n) { return NoReplace(n); } protected override QilNode VisitPICtor(QilBinary n) { return NoReplace(n); } protected override QilNode VisitTextCtor(QilUnary n) { return NoReplace(n); } protected override QilNode VisitRawTextCtor(QilUnary n) { return NoReplace(n); } protected override QilNode VisitDocumentCtor(QilUnary n) { return NoReplace(n); } protected override QilNode VisitNamespaceDecl(QilBinary n) { return NoReplace(n); } protected override QilNode VisitRtfCtor(QilBinary n) { return NoReplace(n); } #endregion #region Node properties protected override QilNode VisitNameOf(QilUnary n) { return NoReplace(n); } protected override QilNode VisitLocalNameOf(QilUnary n) { return NoReplace(n); } protected override QilNode VisitNamespaceUriOf(QilUnary n) { return NoReplace(n); } protected override QilNode VisitPrefixOf(QilUnary n) { return NoReplace(n); } #endregion #region Type operators protected override QilNode VisitTypeAssert(QilTargetType n) { return NoReplace(n); } protected override QilNode VisitIsType(QilTargetType n) { return NoReplace(n); } protected override QilNode VisitIsEmpty(QilUnary n) { return NoReplace(n); } #endregion #region XPath operators protected override QilNode VisitXPathNodeValue(QilUnary n) { return NoReplace(n); } protected override QilNode VisitXPathFollowing(QilUnary n) { return NoReplace(n); } protected override QilNode VisitXPathPreceding(QilUnary n) { return NoReplace(n); } protected override QilNode VisitXPathNamespace(QilUnary n) { return NoReplace(n); } #endregion #region XSLT protected override QilNode VisitXsltGenerateId(QilUnary n) { return NoReplace(n); } protected override QilNode VisitXsltInvokeLateBound(QilInvokeLateBound n) { return NoReplace(n); } protected override QilNode VisitXsltInvokeEarlyBound(QilInvokeEarlyBound n) { return NoReplace(n); } protected override QilNode VisitXsltCopy(QilBinary n) { return NoReplace(n); } protected override QilNode VisitXsltCopyOf(QilUnary n) { return NoReplace(n); } protected override QilNode VisitXsltConvert(QilTargetType n) { return NoReplace(n); } #endregion #endregion //----------------------------------------------- // Helper methods //----------------------------------------------- ////// A bit vector holding a set of rewrites. /// sealed internal class QilPatterns { private BitArray bits; private QilPatterns(QilPatterns toCopy) { this.bits = new BitArray(toCopy.bits); } public QilPatterns(int szBits, bool allSet) { this.bits = new BitArray(szBits, allSet); } public QilPatterns Clone() { return new QilPatterns(this); } public void ClearAll() { this.bits.SetAll(false); } public void Add(int i) { this.bits.Set(i, true); } public bool IsSet(int i) { return this.bits[i]; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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