91 lines
3.6 KiB
C#
91 lines
3.6 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="CompiledAction.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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// <owner current="true" primary="true">[....]</owner>
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//------------------------------------------------------------------------------
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namespace System.Xml.Xsl.XsltOld {
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using Res = System.Xml.Utils.Res;
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using System;
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using System.Diagnostics;
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using System.Xml;
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using System.Xml.XPath;
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internal abstract class CompiledAction : Action {
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internal abstract void Compile(Compiler compiler);
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internal virtual bool CompileAttribute(Compiler compiler) {
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return false;
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}
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public void CompileAttributes(Compiler compiler) {
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NavigatorInput input = compiler.Input;
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string element = input.LocalName;
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if (input.MoveToFirstAttribute()) {
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do {
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if (input.NamespaceURI.Length != 0) continue;
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try {
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if (CompileAttribute(compiler) == false) {
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throw XsltException.Create(Res.Xslt_InvalidAttribute, input.LocalName, element);
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}
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}catch {
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if (! compiler.ForwardCompatibility) {
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throw;
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}
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else {
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// In ForwardCompatibility mode we ignoreing all unknown or incorrect attributes
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// If it's mandatory attribute we'l notice it absents later.
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}
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}
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}
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while (input.MoveToNextAttribute());
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input.ToParent();
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}
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}
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// For perf reason we precalculating AVTs at compile time.
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// If we can do this we set original AVT to null
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internal static string PrecalculateAvt(ref Avt avt) {
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string result = null;
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if(avt != null && avt.IsConstant) {
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result = avt.Evaluate(null, null);
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avt = null;
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}
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return result;
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}
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public void CheckEmpty(Compiler compiler) {
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// Really EMPTY means no content at all, but the sake of compatibility with MSXML we allow whitespaces
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string elementName = compiler.Input.Name;
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if (compiler.Recurse()) {
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do {
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// Note: <![CDATA[ ]]> will be reported as XPathNodeType.Text
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XPathNodeType nodeType = compiler.Input.NodeType;
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if (
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nodeType != XPathNodeType.Whitespace &&
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nodeType != XPathNodeType.Comment &&
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nodeType != XPathNodeType.ProcessingInstruction
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) {
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throw XsltException.Create(Res.Xslt_NotEmptyContents, elementName);
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}
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}
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while (compiler.Advance());
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compiler.ToParent();
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}
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}
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public void CheckRequiredAttribute(Compiler compiler, object attrValue, string attrName) {
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CheckRequiredAttribute(compiler, attrValue != null, attrName);
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}
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public void CheckRequiredAttribute(Compiler compiler, bool attr, string attrName) {
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if (! attr) {
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throw XsltException.Create(Res.Xslt_MissingAttribute, attrName);
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}
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}
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}
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}
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