private void DefineVariable(VariableAction variable)
{
Debug.Assert(this.Debugger != null);
if (variable.IsGlobal)
{
for (int i = 0; i < _globalVars.Count; i++)
{
VariableAction oldVar = (VariableAction)_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.");
_globalVars[i] = variable;
_globalVarsCache = null;
}
return;
}
}
_globalVars.Add(variable);
_globalVarsCache = null;
}
else
{
// local variables never conflict
_localVars.Add(variable);
_localVarsCache = null;
}
}
internal void InsertVariable(VariableAction variable) {
Debug.Assert(variable != null);
if (this.variables == null) {
this.variables = new Hashtable();
}
this.variables[variable.Name] = variable;
}
//
// Variable support
//
internal int InsertVariable(VariableAction variable)
{
InputScope varScope;
if (variable.IsGlobal)
{
Debug.Assert(_rootAction != null);
varScope = _rootScope;
}
else
{
Debug.Assert(_currentTemplate != null);
Debug.Assert(variable.VarType == VariableType.LocalVariable || variable.VarType == VariableType.LocalParameter || variable.VarType == VariableType.WithParameter);
varScope = _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 XsltException.Create(SR.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 XsltException.Create(SR.Xslt_DupVarName, variable.NameStr);
}
}
varScope.InsertVariable(variable);
return(_currentTemplate.AllocateVariableSlot());
}
internal void InsertVariable(VariableAction variable)
{
Debug.Assert(variable != null);
if (_variables == null)
{
_variables = new Hashtable();
}
_variables[variable.Name !] = variable;
internal void InsertVariable(VariableAction variable)
{
Debug.Assert(variable != null);
if (this.variables == null)
{
this.variables = new Hashtable();
}
this.variables[variable.Name] = variable;
}
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 EvaluateVariable(VariableAction variable) {
Object result = this.processor.GetVariableValue(variable);
if (result == null && ! variable.IsGlobal) {
// This was uninitialized local variable. May be we have sutable global var too?
VariableAction global = this.manager.VariableScope.ResolveGlobalVariable(variable.Name);
if (global != null) {
result = this.processor.GetVariableValue(global);
}
}
if (result == null) {
throw XsltException.Create(Res.Xslt_InvalidVariable, variable.Name.ToString());
}
return result;
}
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);
}
internal object EvaluateVariable(VariableAction variable)
{
Object result = this.processor.GetVariableValue(variable);
if (result == null && !variable.IsGlobal)
{
// This was uninitialized local variable. May be we have sutable global var too?
VariableAction global = this.manager.VariableScope.ResolveGlobalVariable(variable.Name);
if (global != null)
{
result = this.processor.GetVariableValue(global);
}
}
if (result == null)
{
throw XsltException.Create(Res.Xslt_InvalidVariable, variable.Name.ToString());
}
return(result);
}
internal object GetVariableValue(VariableAction variable)
{
int variablekey = variable.VarKey;
if (variable.IsGlobal)
{
ActionFrame rootFrame = (ActionFrame)this.actionStack[0];
object result = rootFrame.GetVariable(variablekey);
if (result != null)
{
return(result);
}
// Variable wasn't evaluated yet
if (variable.Stylesheetid == -1)
{
throw XsltException.Create(Res.Xslt_CircularReference, variable.NameStr);
}
int saveStackSize = this.actionStack.Length;
ActionFrame varFrame = PushNewFrame();
varFrame.Inherit(rootFrame);
varFrame.Init(variable, rootFrame.NodeSet);
do
{
bool endOfFrame = ((ActionFrame)this.actionStack.Peek()).Execute(this);
if (endOfFrame)
{
this.actionStack.Pop();
}
} while (saveStackSize < this.actionStack.Length);
Debug.Assert(saveStackSize == this.actionStack.Length);
result = rootFrame.GetVariable(variablekey);
Debug.Assert(result != null, "Variable was just calculated and result can't be null");
return(result);
}
else
{
return(((ActionFrame)this.actionStack.Peek()).GetVariable(variablekey));
}
}
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;
}
}
//
// Variable support
//
internal int InsertVariable(VariableAction variable)
{
InputScope varScope;
if (variable.IsGlobal)
{
Debug.Assert(_rootAction != null);
varScope = _rootScope;
}
else
{
Debug.Assert(_currentTemplate != null);
Debug.Assert(variable.VarType == VariableType.LocalVariable || variable.VarType == VariableType.LocalParameter || variable.VarType == VariableType.WithParameter);
varScope = _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 XsltException.Create(SR.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 XsltException.Create(SR.Xslt_DupVarName, variable.NameStr);
}
}
varScope.InsertVariable(variable);
return _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;
}
}
// SxS: This method does not take any resource name and does not expose any resources to the caller.
// It's OK to suppress the SxS warning.
protected void CompileTopLevelElements(Compiler compiler)
{
// Navigator positioned at parent root, need to move to child and then back
if (compiler.Recurse() == false)
{
return;
}
NavigatorInput input = compiler.Input;
bool notFirstElement = false;
do
{
switch (input.NodeType)
{
case XPathNodeType.Element:
string name = input.LocalName;
string nspace = input.NamespaceURI;
if (Ref.Equal(nspace, input.Atoms.UriXsl))
{
if (Ref.Equal(name, input.Atoms.Import))
{
if (notFirstElement)
{
throw XsltException.Create(SR.Xslt_NotFirstImport);
}
// We should compile imports in reverse order after all toplevel elements.
// remember it now and return to it in CompileImpoorts();
Uri uri = compiler.ResolveUri(compiler.GetSingleAttribute(compiler.Input.Atoms.Href));
string resolved = uri.ToString();
if (compiler.IsCircularReference(resolved))
{
throw XsltException.Create(SR.Xslt_CircularInclude, resolved);
}
compiler.CompiledStylesheet.Imports.Add(uri);
CheckEmpty(compiler);
}
else if (Ref.Equal(name, input.Atoms.Include))
{
notFirstElement = true;
CompileInclude(compiler);
}
else
{
notFirstElement = true;
compiler.PushNamespaceScope();
if (Ref.Equal(name, input.Atoms.StripSpace))
{
CompileSpace(compiler, false);
}
else if (Ref.Equal(name, input.Atoms.PreserveSpace))
{
CompileSpace(compiler, true);
}
else if (Ref.Equal(name, input.Atoms.Output))
{
CompileOutput(compiler);
}
else if (Ref.Equal(name, input.Atoms.Key))
{
CompileKey(compiler);
}
else if (Ref.Equal(name, input.Atoms.DecimalFormat))
{
CompileDecimalFormat(compiler);
}
else if (Ref.Equal(name, input.Atoms.NamespaceAlias))
{
CompileNamespaceAlias(compiler);
}
else if (Ref.Equal(name, input.Atoms.AttributeSet))
{
compiler.AddAttributeSet(compiler.CreateAttributeSetAction());
}
else if (Ref.Equal(name, input.Atoms.Variable))
{
VariableAction action = compiler.CreateVariableAction(VariableType.GlobalVariable);
if (action != null)
{
AddAction(action);
}
}
else if (Ref.Equal(name, input.Atoms.Param))
{
VariableAction action = compiler.CreateVariableAction(VariableType.GlobalParameter);
if (action != null)
{
AddAction(action);
}
}
else if (Ref.Equal(name, input.Atoms.Template))
{
compiler.AddTemplate(compiler.CreateTemplateAction());
}
else
{
if (!compiler.ForwardCompatibility)
{
throw compiler.UnexpectedKeyword();
}
}
compiler.PopScope();
}
}
else if (nspace == input.Atoms.UrnMsxsl && name == input.Atoms.Script)
{
AddScript(compiler);
}
else
{
if (nspace.Length == 0)
{
throw XsltException.Create(SR.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 XsltException.Create(SR.Xslt_InvalidContents, "stylesheet");
}
}while (compiler.Advance());
compiler.ToParent();
}
internal object GetVariableValue(VariableAction variable) {
int variablekey = variable.VarKey;
if (variable.IsGlobal) {
ActionFrame rootFrame = (ActionFrame) this.actionStack[0];
object result = rootFrame.GetVariable(variablekey);
if (result == VariableAction.BeingComputedMark) {
throw XsltException.Create(Res.Xslt_CircularReference, variable.NameStr);
}
if (result != null) {
return result;
}
// Variable wasn't evaluated yet
int saveStackSize = this.actionStack.Length;
ActionFrame varFrame = PushNewFrame();
varFrame.Inherit(rootFrame);
varFrame.Init(variable, rootFrame.NodeSet);
do {
bool endOfFrame = ((ActionFrame) this.actionStack.Peek()).Execute(this);
if (endOfFrame) {
this.actionStack.Pop();
}
} while (saveStackSize < this.actionStack.Length);
Debug.Assert(saveStackSize == this.actionStack.Length);
result = rootFrame.GetVariable(variablekey);
Debug.Assert(result != null, "Variable was just calculated and result can't be null");
return result;
} else {
return ((ActionFrame) this.actionStack.Peek()).GetVariable(variablekey);
}
}
internal void ReplaceVariables(VariableAction[] vars) { this.variables = vars; }
