public override void SetXsltContext(XsltContext context)
{
if (context == null)
{
throw XPathException.Create(SR.Xp_NoContext);
}
if (this.xsltContext != context)
{
xsltContext = context;
foreach (Query argument in _args)
{
argument.SetXsltContext(context);
}
XPathResultType[] argTypes = new XPathResultType[_args.Count];
for (int i = 0; i < _args.Count; i++)
{
argTypes[i] = _args[i].StaticType;
}
_function = xsltContext.ResolveFunction(prefix, name, argTypes);
// KB article allows to return null, see http://support.microsoft.com/?kbid=324462#6
if (_function == null)
{
throw XPathException.Create(SR.Xp_UndefFunc, QName);
}
}
}
public ExsltContextFunction(MethodInfo mi, XPathResultType[] argTypes,
object owner)
{
_method = mi;
_argTypes = argTypes;
_ownerObj = owner;
}
public override IXsltContextFunction ResolveFunction(string prefix, string name, XPathResultType[] argTypes)
{
XsltFunction function;
if (functions.TryGetValue(name, out function))
return function;
return baseContext.ResolveFunction(prefix, name, argTypes);
}
public override IXsltContextFunction ResolveFunction(string prefix, string name, XPathResultType[] argTypes)
{
if (string.IsNullOrEmpty(prefix))
return base.ResolveFunction(prefix, name, argTypes);
return mvpContext.ResolveFunction(prefix, name, argTypes);
}
/// <summary>
/// Creates a new extension function definition.
/// </summary>
/// <param name="name"></param>
/// <param name="minArgs"></param>
/// <param name="maxArgs"></param>
/// <param name="argTypes"></param>
/// <param name="returnType"></param>
/// <param name="fn"></param>
public TriflesXPathExtensionFunction(XName name, int minArgs, int maxArgs, XPathResultType[] argTypes, XPathResultType returnType, TriflesXPathInvokable fn)
{
FunctionName = Checker.NotNull(name, "name");
Minargs = minArgs;
Maxargs = maxArgs;
if (Minargs < 0)
{
throw new ArgumentOutOfRangeException("minArgs");
}
else if (Maxargs < Minargs)
{
throw new ArgumentOutOfRangeException("maxArgs", "maxArgs cannot be less than minArgs");
}
if (argTypes == null)
{
argTypes = new XPathResultType[0];
}
this.argTypes = argTypes.ToImmutableArray();
ReturnType = Checker.NotNull(returnType, "returnType");
invokable = Checker.NotNull(fn, "fn");
}
protected void Init (int minArgs, int maxArgs, XPathResultType returnType, XPathResultType[] argTypes)
{
this.minargs = minArgs;
this.maxargs = maxArgs;
this.returnType = returnType;
this.argTypes = argTypes;
}
internal XPathResult(XPathNodeIterator nodeSetResult)
: this()
{
this.nodeSetResult = nodeSetResult;
this.internalIterator = nodeSetResult as SafeNodeSequenceIterator;
this.resultType = XPathResultType.NodeSet;
}
protected XPathMessageFunction(XPathResultType[] argTypes, int max, int min, XPathResultType retType)
{
this.argTypes = argTypes;
this.maxArgs = max;
this.minArgs = min;
this.retType = retType;
}
private void CheckNodeSet(XPathResultType t)
{
if ((t != XPathResultType.NodeSet) && (t != XPathResultType.Any))
{
throw XPathException.Create("Xp_NodeSetExpected", this.scanner.SourceText);
}
}
public override IXsltContextFunction ResolveFunction(string prefix, string name, XPathResultType[] argTypes)
{
IXsltContextFunction function = null;
if (string.IsNullOrEmpty(prefix))
functions.TryGetValue(name, out function);
return function ?? base.ResolveFunction(prefix, name, argTypes);
}
public CustomXsltFunction(string name, XPathResultType[] argTypes, XPathResultType returnType, InvokedFunction function = null)
{
Prefix = String.Empty;
Name = name;
ArgTypes = argTypes;
ReturnType = returnType;
Function = function;
}
public override IXsltContextFunction ResolveFunction(string prefix, string name, XPathResultType[] ArgTypes)
{
if (name == "upper-case")
{
return new UpperCase();
}
return null;
}
public override IXsltContextFunction ResolveFunction(string prefix, string name, XPathResultType[] ArgTypes)
{
var func = _functions.SingleOrDefault(f => f.Name == name && f.Prefix == prefix);
if(func != null)
return func;
else
throw new InvalidOperationException("Unknown function in XPath: " + name);
}
public override IXsltContextFunction ResolveFunction(string prefix, string name, XPathResultType[] argTypes)
{
if (name == "document")
{
return new XsltContextFunction("document");
}
return null;
}
/// <summary>
/// Creates the variable object.
/// </summary>
/// <param name="name"></param>
/// <param name="value"></param>
/// <param name="isLocal"></param>
/// <param name="isParam"></param>
/// <param name="resultType"></param>
public TriflesXPathExtensionVariable(XName name, object value, bool isLocal = false, bool isParam = false, XPathResultType? resultType = null)
{
this.VariableName = name;
this.Value = value;
this.IsLocal = isLocal;
this.IsParam = isParam;
this.VariableType = resultType.HasValue ? resultType.Value : TriflesXPathData.GuessXPathResultType(value);
}
public override IXsltContextFunction ResolveFunction(string prefix, string name, XPathResultType[] argTypes)
{
if (string.IsNullOrEmpty(prefix))
{
if (name == "current" && argTypes.Length == 0)
return currentFunction;
}
return base.ResolveFunction(prefix, name, argTypes);
}
// Constructors
public XsltFunction(string name, XPathResultType[] argTypes, XPathResultType returnType,
Func<XsltContext, XPathNavigator, object[], object> implementation, int? minArgs = null, int? maxArgs = null)
{
this.name = name;
this.argTypes = argTypes;
this.returnType = returnType;
this.minArgs = minArgs ?? argTypes.Length;
this.maxArgs = maxArgs ?? argTypes.Length;
this.implementation = implementation;
}
public override IXsltContextFunction ResolveFunction(string prefix, string name, XPathResultType[] ArgTypes) {
switch (name) {
case "match":
return m_MatchFct;
case "canCastTo":
return m_CanCastTo;
default:
throw new NotSupportedException();
}
}
static XPathParser()
{
XPathResultType[] typeArray5 = new XPathResultType[3];
typeArray5[0] = XPathResultType.String;
temparray6 = typeArray5;
temparray7 = new XPathResultType[] { XPathResultType.String, XPathResultType.String, XPathResultType.String };
temparray8 = new XPathResultType[] { XPathResultType.Boolean };
temparray9 = new XPathResultType[1];
functionTable = CreateFunctionTable();
AxesTable = CreateAxesTable();
}
public override IXsltContextFunction ResolveFunction(string prefix, string name,
XPathResultType[] argTypes)
{
IXsltContextFunction function = null;
if (this.functions.TryGetValue(prefix + ":" + name, out function))
{
return function;
}
return null;
}
public XPathProcessorResult(object value, XPathResultType resultType)
{
switch (resultType)
{
case XPathResultType.NodeSet:
XMLNodeList = (XmlNodeList)value;
break;
case XPathResultType.Boolean:
case XPathResultType.Number:
case XPathResultType.String:
StringResult = value.ToString();
break;
default:
throw new ArgumentOutOfRangeException("Unexpected XPathResultType");
}
}
/// <summary>
/// Resolves the specified function name.
/// </summary>
/// <param name="prefix"></param>
/// <param name="localName"></param>
/// <param name="argTypes"></param>
/// <returns></returns>
public override IXsltContextFunction ResolveFunction(string prefix, string localName, XPathResultType[] argTypes)
{
Contract.Assert(prefix != null);
Contract.Assert(localName != null);
Contract.Assert(argTypes != null);
return functionProvider.GetFunctions()
.SelectMany(i => i.Metadata.ExpandedName
.Select((j, k) => new
{
Name = i.Metadata.ExpandedName[k],
Item = i,
}))
.Where(i => ResolveFunctionPredicate(
XName.Get(i.Name),
prefix,
localName))
.Select(i => i.Item.Value)
.FirstOrDefault();
}
public override IXsltContextFunction ResolveFunction(string Prefix, string Name, XPathResultType[] ArgTypes)
{
if (LookupNamespace(Prefix) == ExtensionsNamespaceUri) {
switch (Name) {
case "CountChar":
return new XPathExtensions(2, 2, XPathResultType.Number, ArgTypes, "CountChar");
case "FindTaskBy":
// Implemented but not called.
return new XPathExtensions(2, 2, XPathResultType.String, ArgTypes, "FindTaskBy");
case "Right":
// Implemented but not called.
return new XPathExtensions(2, 2, XPathResultType.String, ArgTypes, "Right");
case "Left":
// Implemented but not called.
return new XPathExtensions(2, 2, XPathResultType.String, ArgTypes, "Left");
case "Like":
case "matches":
// Implemented but not called.
return new XPathExtensions(2, 2, XPathResultType.Boolean, ArgTypes, "Like");
case "verntoenglish":
case "VernToEnglish":
return new XPathExtensions(1, 1, XPathResultType.String, ArgTypes, "VernToEnglish");
case "DepType":
case "deptype":
return new XPathExtensions(1, 1, XPathResultType.String, ArgTypes, "DepType");
case "LabelExtNum":
case "labelnum":
return new XPathExtensions(1, 1, XPathResultType.Number, ArgTypes, "LabelExtNum");
default:
break;
}
}
// Return Nothing if none of the functions match name.
return null;
}
IXsltContextFunction IXPathFunctionLibrary.ResolveFunction( string prefix, string name,
XPathResultType[] argTypes )
{
BindingFlags flags = BindingFlags.Static | BindingFlags.Public;
if ( fInstance != null )
{
flags |= BindingFlags.Instance;
}
MethodInfo[] methods = fType.GetMethods( flags );
List<MethodInfo> methodList = new List<MethodInfo>();
foreach ( MethodInfo info in methods )
{
if ( info.Name == name )
{
methodList.Add( info );
}
}
if ( methodList.Count > 0 )
{
return new CustomFunction( methodList.ToArray(), fInstance );
}
return null;
}
static Function()
{
XPathResultType[] typeArray = new XPathResultType[0x1c];
typeArray[3] = XPathResultType.NodeSet;
typeArray[4] = XPathResultType.String;
typeArray[5] = XPathResultType.String;
typeArray[6] = XPathResultType.String;
typeArray[7] = XPathResultType.String;
typeArray[8] = XPathResultType.Boolean;
typeArray[10] = XPathResultType.Boolean;
typeArray[11] = XPathResultType.Boolean;
typeArray[12] = XPathResultType.Boolean;
typeArray[13] = XPathResultType.String;
typeArray[14] = XPathResultType.Boolean;
typeArray[15] = XPathResultType.Boolean;
typeArray[0x10] = XPathResultType.String;
typeArray[0x11] = XPathResultType.String;
typeArray[0x12] = XPathResultType.String;
typeArray[20] = XPathResultType.String;
typeArray[0x15] = XPathResultType.String;
typeArray[0x16] = XPathResultType.Boolean;
typeArray[0x1b] = XPathResultType.Any;
ReturnTypes = typeArray;
}
public Operand(bool val)
{
this.type = XPathResultType.Boolean;
this.val = val;
}
internal ParamInfo(Function.FunctionType ftype, int minargs, int maxargs, XPathResultType[] argTypes)
{
this.ftype = ftype;
this.minargs = minargs;
this.maxargs = maxargs;
this.argTypes = argTypes;
}
public override IXsltContextFunction ResolveFunction(string prefix, string name, XPathResultType[] argTypes)
{
Func<IXsltContextFunction> function;
if (functions.TryGetValue(GetQualifiedName(prefix, name), out function))
return function();
return (parent != null) ? parent.ResolveFunction(prefix, name, argTypes) : null;
}
public Operand(double val)
{
this.type = XPathResultType.Number;
this.val = val;
}
public Operand(string val)
{
this.type = XPathResultType.String;
this.val = val;
}
private MethodInfo FindBestMethod(MethodInfo[] methods, bool ignoreCase, bool publicOnly, string name, XPathResultType[] argTypes)
{
int length = methods.Length;
int free = 0;
// restrict search to methods with the same name and requiested protection attribute
for (int i = 0; i < length; i++)
{
if (string.Equals(name, methods[i].Name, ignoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal))
{
if (!publicOnly || methods[i].GetBaseDefinition().IsPublic)
{
methods[free++] = methods[i];
}
}
}
length = free;
if (length == 0)
{
// this is the only place we returning null in this function
return(null);
}
if (argTypes == null)
{
// without arg types we can't do more detailed search
return(methods[0]);
}
// restrict search by number of parameters
free = 0;
for (int i = 0; i < length; i++)
{
if (methods[i].GetParameters().Length == argTypes.Length)
{
methods[free++] = methods[i];
}
}
length = free;
if (length <= 1)
{
// 0 -- not method found. We have to return non-null and let it fail with correct exception on call.
// 1 -- no reason to continue search anyway.
return(methods[0]);
}
// restrict search by parameters type
free = 0;
for (int i = 0; i < length; i++)
{
bool match = true;
ParameterInfo[] parameters = methods[i].GetParameters();
for (int par = 0; par < parameters.Length; par++)
{
XPathResultType required = argTypes[par];
if (required == XPathResultType.Any)
{
continue; // Any means we don't know type and can't discriminate by it
}
XPathResultType actual = GetXPathType(parameters[par].ParameterType);
if (
actual != required &&
actual != XPathResultType.Any // actual arg is object and we can pass everithing here.
)
{
match = false;
break;
}
}
if (match)
{
methods[free++] = methods[i];
}
}
length = free;
return(methods[0]);
}
