private void DefineVariable(VariableAction variable)
{
Debug.Assert(this.Debugger != null);
if (variable.IsGlobal)
{
for (int i = 0; i < globalVars.Count; i++)
{
VariableAction oldVar = (VariableAction)this.globalVars[i];
if (oldVar.Name == variable.Name) // Duplicate var definition
{
if (variable.Stylesheetid < oldVar.Stylesheetid)
{
Debug.Assert(variable.VarKey != -1, "Variable was already placed and it should replace prev var.");
this.globalVars[i] = variable;
this.globalVarsCache = null;
}
return;
}
}
this.globalVars.Add(variable);
this.globalVarsCache = null;
}
else
{
// local variables never conflict
localVars.Add(variable);
this.localVarsCache = null;
}
}
internal Object GetVariableValue(VariableAction variable)
{
int variablekey = variable.VarKey;
ActionFrame frame = (ActionFrame)(variable.IsGlobal ? this.actionStack[0] : this.actionStack.Peek());
return(frame.GetVariable(variablekey));
}
private void RecursiveWalk(int index, ArrayList InputList, ref ArrayList OutputList)
{
SortedList list = InputList[index] as SortedList;
if (list.Count == 0)
{
return;
}
if (list.Count == 1)
{
OutputList.Add(index);
list.Clear();
return;
}
if (list.Contains(-1))
{
VariableAction action = this.containedActions[index] as VariableAction;
throw new XsltException(Res.Xslt_CircularReference, action.NameStr);
}
list.Add(-1, -1);
for (int i = 0; i < list.Count; i++)
{
int actionindex = (int)list.GetByIndex(i);
if (actionindex != -1 && actionindex != index)
{
RecursiveWalk(actionindex, InputList, ref OutputList);
}
}
OutputList.Add(index);
list.Clear();
return;
}
//
// Variable support
//
internal int InsertVariable(VariableAction variable)
{
InputScope varScope;
if (variable.IsGlobal)
{
Debug.Assert(this.rootAction != null);
varScope = this.rootScope;
}
else
{
Debug.Assert(this.currentTemplate != null);
Debug.Assert(variable.VarType == VariableType.LocalVariable || variable.VarType == VariableType.LocalParameter || variable.VarType == VariableType.WithParameter);
varScope = this.scopeManager.VariableScope;
}
VariableAction oldVar = varScope.ResolveVariable(variable.Name);
if (oldVar != null)
{
// Other variable with this name is visible in this scope
if (oldVar.IsGlobal)
{
if (variable.IsGlobal)
{
// Global Vars replace each other base on import presidens odred
if (variable.Stylesheetid == oldVar.Stylesheetid)
{
// Both vars are in the same stylesheet
throw new XsltException(Res.Xslt_DupVarName, variable.NameStr);
}
else if (variable.Stylesheetid < oldVar.Stylesheetid)
{
// newly defined var is more importent
varScope.InsertVariable(variable);
return(oldVar.VarKey);
}
else
{
// we egnore new variable
return(InvalidQueryKey); // We didn't add this var, so doesn't matter what VarKey we return;
}
}
else
{
// local variable can shadow global
}
}
else
{
// Local variable never can be "shadowed"
throw new XsltException(Res.Xslt_DupVarName, variable.NameStr);
}
}
varScope.InsertVariable(variable);
return(this.currentTemplate.AllocateVariableSlot());
}
internal void InsertVariable(VariableAction variable)
{
Debug.Assert(variable != null);
if (this.variables == null)
{
this.variables = new Hashtable();
}
this.variables[variable.Name] = variable;
}
/// <include file='doc\XsltCompileContext.uex' path='docs/doc[@for="XsltCompileContext.EvaluateVariable1"]/*' />
internal object EvaluateVariable(VariableAction variable) {
Object result = this.processor.GetVariableValue(variable);
if (result != null || variable.IsGlobal) {
return result;
}
VariableAction global = this.manager.VariableScope.ResolveGlobalVariable(variable.Name);
if (global != null) {
result = this.processor.GetVariableValue(global);
}
return result;
}
public virtual VariableAction CreateVariableAction(VariableType type)
{
VariableAction action = new VariableAction(type);
action.Compile(this);
if (action.VarKey != InvalidQueryKey)
{
return(action);
}
else
{
return(null);
}
}
public VariableAction ResolveVariable(XmlQualifiedName qname)
{
for (InputScope inputScope = this; inputScope != null; inputScope = inputScope.Parent)
{
if (inputScope.Variables != null)
{
VariableAction variable = (VariableAction)inputScope.Variables[qname];
if (variable != null)
{
return(variable);
}
}
}
return(null);
}
/// <include file='doc\XsltCompileContext.uex' path='docs/doc[@for="XsltCompileContext.EvaluateVariable1"]/*' />
internal object EvaluateVariable(VariableAction variable)
{
Object result = this.processor.GetVariableValue(variable);
if (result != null || variable.IsGlobal)
{
return(result);
}
VariableAction global = this.manager.VariableScope.ResolveGlobalVariable(variable.Name);
if (global != null)
{
result = this.processor.GetVariableValue(global);
}
return(result);
}
private void DefineVariable(VariableAction variable) {
Debug.Assert(this.Debugger != null);
if (variable.IsGlobal) {
for(int i = 0; i < globalVars.Count; i ++) {
VariableAction oldVar = (VariableAction)this.globalVars[i];
if(oldVar.Name == variable.Name) { // Duplicate var definition
if(variable.Stylesheetid < oldVar.Stylesheetid) {
Debug.Assert(variable.VarKey != -1, "Variable was already placed and it should replace prev var.");
this.globalVars[i] = variable;
this.globalVarsCache = null;
}
return;
}
}
this.globalVars.Add(variable);
this.globalVarsCache = null;
}
else {
// local variables never conflict
localVars.Add(variable);
this.localVarsCache = null;
}
}
protected void CompileTopLevelElements(Compiler compiler)
{
// Navigator positioned at parent root, need to move to child and then back
if (compiler.Recurse() == false)
{
Debug.WriteLine("Nothing to compile, exiting");
return;
}
NavigatorInput input = compiler.Input;
bool notFirstElement = false;
do
{
Debug.Trace(input);
switch (input.NodeType)
{
case XPathNodeType.Element:
string name = input.LocalName;
string nspace = input.NamespaceURI;
if (Keywords.Equals(nspace, input.Atoms.XsltNamespace))
{
if (Keywords.Equals(name, input.Atoms.Import))
{
if (notFirstElement)
{
throw new XsltException(Res.Xslt_NotFirstImport);
}
// We should compile imports in reverse order after all toplevel elements.
// remember it now and return to it in CompileImpoorts();
compiler.CompiledStylesheet.Imports.Add(compiler.GetSingleAttribute(compiler.Input.Atoms.Href));
}
else if (Keywords.Equals(name, input.Atoms.Include))
{
notFirstElement = true;
CompileInclude(compiler);
}
else
{
notFirstElement = true;
compiler.PushNamespaceScope();
if (Keywords.Equals(name, input.Atoms.StripSpace))
{
CompileSpace(compiler, false);
}
else if (Keywords.Equals(name, input.Atoms.PreserveSpace))
{
CompileSpace(compiler, true);
}
else if (Keywords.Equals(name, input.Atoms.Output))
{
CompileOutput(compiler);
}
else if (Keywords.Equals(name, input.Atoms.Key))
{
CompileKey(compiler);
}
else if (Keywords.Equals(name, input.Atoms.DecimalFormat))
{
CompileDecimalFormat(compiler);
}
else if (Keywords.Equals(name, input.Atoms.NamespaceAlias))
{
CompileNamespaceAlias(compiler);
}
else if (Keywords.Equals(name, input.Atoms.AttributeSet))
{
compiler.AddAttributeSet(compiler.CreateAttributeSetAction());
}
else if (Keywords.Equals(name, input.Atoms.Variable))
{
VariableAction action = compiler.CreateVariableAction(VariableType.GlobalVariable);
if (action != null)
{
AddAction(action);
}
}
else if (Keywords.Equals(name, input.Atoms.Param))
{
VariableAction action = compiler.CreateVariableAction(VariableType.GlobalParameter);
if (action != null)
{
AddAction(action);
}
}
else if (Keywords.Equals(name, input.Atoms.Template))
{
compiler.AddTemplate(compiler.CreateTemplateAction());
}
else
{
if (!compiler.ForwardCompatibility)
{
throw XsltException.UnexpectedKeyword(compiler);
}
}
compiler.PopScope();
}
}
else if (nspace == input.Atoms.MsXsltNamespace && name == input.Atoms.Script)
{
AddScript(compiler);
}
else
{
if (Keywords.Equals(nspace, input.Atoms.Empty))
{
throw new XsltException(Res.Xslt_NullNsAtTopLevel, input.Name);
}
// Ignoring non-recognized namespace per XSLT spec 2.2
}
break;
case XPathNodeType.ProcessingInstruction:
case XPathNodeType.Comment:
case XPathNodeType.Whitespace:
case XPathNodeType.SignificantWhitespace:
break;
default:
throw new XsltException(Res.Xslt_InvalidContents, "xsl:stylesheet");
}
}while (compiler.Advance());
compiler.ToParent();
}
//
// Variable support
//
internal int InsertVariable(VariableAction variable) {
InputScope varScope;
if (variable.IsGlobal) {
Debug.Assert(this.rootAction != null);
varScope = this.rootScope;
}
else {
Debug.Assert(this.currentTemplate != null);
Debug.Assert(variable.VarType == VariableType.LocalVariable || variable.VarType == VariableType.LocalParameter || variable.VarType == VariableType.WithParameter);
varScope = this.scopeManager.VariableScope;
}
VariableAction oldVar = varScope.ResolveVariable(variable.Name);
if (oldVar != null) {
// Other variable with this name is visible in this scope
if (oldVar.IsGlobal) {
if (variable.IsGlobal) {
// Global Vars replace each other base on import presidens odred
if(variable.Stylesheetid == oldVar.Stylesheetid) {
// Both vars are in the same stylesheet
throw new XsltException(Res.Xslt_DupVarName, variable.NameStr);
}
else if(variable.Stylesheetid < oldVar.Stylesheetid) {
// newly defined var is more importent
varScope.InsertVariable(variable);
return oldVar.VarKey;
}
else {
// we egnore new variable
return InvalidQueryKey; // We didn't add this var, so doesn't matter what VarKey we return;
}
}
else {
// local variable can shadow global
}
}
else {
// Local variable never can be "shadowed"
throw new XsltException(Res.Xslt_DupVarName, variable.NameStr);
}
}
varScope.InsertVariable(variable);
return this.currentTemplate.AllocateVariableSlot();
}
public virtual VariableAction CreateVariableAction(VariableType type) {
VariableAction action = new VariableAction(type);
action.Compile(this);
if ( action.VarKey != InvalidQueryKey ) {
return action;
}
else {
return null;
}
}
internal Object GetVariableValue(VariableAction variable) {
int variablekey = variable.VarKey;
ActionFrame frame = (ActionFrame) (variable.IsGlobal ? this.actionStack[0] : this.actionStack.Peek());
return frame.GetVariable(variablekey);
}
internal void SortVariables()
{
if (this.containedActions == null)
{
return;
}
ArrayList InputList = new ArrayList();
ArrayList OutputIndexList;
bool flag = false;
SortedList list;
Hashtable hashtable = new Hashtable();
Action action;
int length = this.containedActions.Count;
for (int i = 0; i < length; i++)
{
action = this.containedActions[i] as Action;
if (action is VariableAction)
{
VariableAction var = action as VariableAction;
hashtable[var.NameStr] = i;
}
}
for (int i = 0; i < length; i++)
{
action = this.containedActions[i] as Action;
if (action is VariableAction)
{
VariableAction var = action as VariableAction;
list = new SortedList();
if (var.Select != null)
{
AstNode node = AstNode.NewAstNode(var.Select);
ProcessNode(i, node, hashtable, ref list);
}
else
{
if (var.containedActions != null)
{
foreach (Action containedaction in var.containedActions)
{
if (containedaction.Select != null)
{
AstNode node = AstNode.NewAstNode(containedaction.Select);
ProcessNode(i, node, hashtable, ref list);
}
}
}
}
list.Add(i, i);
flag = list.Count > 1 || flag;
InputList.Add(list);
}
else
{
list = new SortedList();
list.Add(i, i);
InputList.Add(list);
}
}
if (flag)
{
ArrayList ActionList = new ArrayList();
OutputIndexList = new ArrayList();
for (int i = 0; i < InputList.Count; i++)
{
RecursiveWalk(i, InputList, ref OutputIndexList);
}
for (int i = 0; i < OutputIndexList.Count; i++)
{
ActionList.Add(this.containedActions[(int)OutputIndexList[i]]);
}
this.containedActions = ActionList;
}
}
internal void ReplaceVariables(VariableAction[] vars) { this.variables = vars; }
internal void InsertVariable(VariableAction variable) {
Debug.Assert(variable != null);
if (this.variables == null) {
this.variables = new Hashtable();
}
this.variables[variable.Name] = variable;
}
