internal override IList <string> GetMemberNames(bool dataOnly)
{
EnsureScanDefinedMethods();
EnsureScanDefinedEvents();
return(ComTypeDesc.GetMemberNames(dataOnly));
}
internal static ComTypeDesc CreateEmptyTypeDesc() {
ComTypeDesc typeDesc = new ComTypeDesc(null, ComType.Interface, null);
typeDesc._funcs = new Dictionary<string, ComMethodDesc>();
typeDesc._events = _EmptyEventsDict;
return typeDesc;
}
internal static ComTypeDesc CreateEmptyTypeDesc() {
ComTypeDesc typeDesc = new ComTypeDesc(null, ComType.Interface, null);
typeDesc._funcs = new Hashtable();
typeDesc._puts = new Hashtable();
typeDesc._putRefs = new Hashtable();
typeDesc._events = _EmptyEventsDict;
return typeDesc;
}
internal static ComTypeDesc CreateEmptyTypeDesc()
{
ComTypeDesc typeDesc = new ComTypeDesc(null, ComType.Interface, null);
typeDesc._funcs = new Dictionary <string, ComMethodDesc>();
typeDesc._events = _EmptyEventsDict;
return(typeDesc);
}
internal static ComTypeDesc CreateEmptyTypeDesc()
{
ComTypeDesc typeDesc = new ComTypeDesc(null, ComType.Interface, null);
typeDesc._funcs = new Hashtable();
typeDesc._puts = new Hashtable();
typeDesc._putRefs = new Hashtable();
typeDesc._events = _EmptyEventsDict;
return(typeDesc);
}
internal static ComTypeDesc FromITypeInfo(ComTypes.ITypeInfo typeInfo, ComTypes.TYPEATTR typeAttr) {
if (typeAttr.typekind == ComTypes.TYPEKIND.TKIND_COCLASS) {
return new ComTypeClassDesc(typeInfo, null);
} else if (typeAttr.typekind == ComTypes.TYPEKIND.TKIND_ENUM) {
return new ComTypeEnumDesc(typeInfo, null);
} else if ((typeAttr.typekind == ComTypes.TYPEKIND.TKIND_DISPATCH) ||
(typeAttr.typekind == ComTypes.TYPEKIND.TKIND_INTERFACE)) {
ComTypeDesc typeDesc = new ComTypeDesc(typeInfo, ComType.Interface, null);
return typeDesc;
} else {
throw new InvalidOperationException("Attempting to wrap an unsupported enum type.");
}
}
internal static BindingRestrictions IDispatchRestriction(Expression expr, ComTypeDesc typeDesc)
{
return(BindingRestrictions.GetTypeRestriction(
expr, typeof(IDispatchComObject)
).Merge(
BindingRestrictions.GetExpressionRestriction(
Expression.Equal(
Expression.Property(
Helpers.Convert(expr, typeof(IDispatchComObject)),
typeof(IDispatchComObject).GetProperty("ComTypeDesc")
),
Expression.Constant(typeDesc)
)
)
));
}
public override string ToString()
{
ComTypeDesc ctd = _comTypeDesc;
string typeName = null;
if (ctd != null)
{
typeName = ctd.TypeName;
}
if (String.IsNullOrEmpty(typeName))
{
typeName = "IDispatch";
}
return(String.Format(CultureInfo.CurrentCulture, "{0} ({1})", RuntimeCallableWrapper.ToString(), typeName));
}
internal static ComTypeDesc FromITypeInfo(ITypeInfo typeInfo, TYPEATTR typeAttr)
{
switch (typeAttr.typekind)
{
case TYPEKIND.TKIND_COCLASS:
return(new ComTypeClassDesc(typeInfo, null));
case TYPEKIND.TKIND_ENUM:
return(new ComTypeEnumDesc(typeInfo, null));
case TYPEKIND.TKIND_DISPATCH:
case TYPEKIND.TKIND_INTERFACE:
ComTypeDesc typeDesc = new ComTypeDesc(typeInfo, ComType.Interface, null);
return(typeDesc);
default:
throw new InvalidOperationException("Attempting to wrap an unsupported enum type.");
}
}
internal override IList <KeyValuePair <string, object> > GetMembers(IEnumerable <string> names)
{
if (names == null)
{
names = GetMemberNames(true);
}
Type comType = RuntimeCallableWrapper.GetType();
var members = new List <KeyValuePair <string, object> >();
foreach (string name in names)
{
if (name == null)
{
continue;
}
ComMethodDesc method;
if (ComTypeDesc.TryGetFunc(name, out method) && method.IsDataMember)
{
try {
object value = comType.InvokeMember(
method.Name,
BindingFlags.GetProperty,
null,
RuntimeCallableWrapper,
new object[0],
CultureInfo.InvariantCulture
);
members.Add(new KeyValuePair <string, object>(method.Name, value));
//evaluation failed for some reason. pass exception out
} catch (Exception ex) {
members.Add(new KeyValuePair <string, object>(method.Name, ex));
}
}
}
return(members.ToArray());
}
internal static ComTypeDesc FromITypeInfo(ComTypes.ITypeInfo typeInfo, ComTypes.TYPEATTR typeAttr)
{
if (typeAttr.typekind == ComTypes.TYPEKIND.TKIND_COCLASS)
{
return(new ComTypeClassDesc(typeInfo, null));
}
else if (typeAttr.typekind == ComTypes.TYPEKIND.TKIND_ENUM)
{
return(new ComTypeEnumDesc(typeInfo, null));
}
else if ((typeAttr.typekind == ComTypes.TYPEKIND.TKIND_DISPATCH) ||
(typeAttr.typekind == ComTypes.TYPEKIND.TKIND_INTERFACE))
{
ComTypeDesc typeDesc = new ComTypeDesc(typeInfo, ComType.Interface, null);
return(typeDesc);
}
else
{
throw new InvalidOperationException("Attempting to wrap an unsupported enum type.");
}
}
private void EnsureScanDefinedMethods()
{
if (_comTypeDesc != null && _comTypeDesc.Funcs != null)
{
return;
}
ComTypes.ITypeInfo typeInfo = ComRuntimeHelpers.GetITypeInfoFromIDispatch(_dispatchObject, true);
if (typeInfo == null)
{
_comTypeDesc = ComTypeDesc.CreateEmptyTypeDesc();
return;
}
ComTypes.TYPEATTR typeAttr = ComRuntimeHelpers.GetTypeAttrForTypeInfo(typeInfo);
if (_comTypeDesc == null)
{
lock (_CacheComTypeDesc) {
if (_CacheComTypeDesc.TryGetValue(typeAttr.guid, out _comTypeDesc) &&
_comTypeDesc.Funcs != null)
{
return;
}
}
}
ComTypeDesc typeDesc = ComTypeDesc.FromITypeInfo(typeInfo, typeAttr);
ComMethodDesc getItem = null;
ComMethodDesc setItem = null;
Hashtable funcs = new Hashtable(typeAttr.cFuncs);
Hashtable puts = new Hashtable();
Hashtable putrefs = new Hashtable();
for (int definedFuncIndex = 0; definedFuncIndex < typeAttr.cFuncs; definedFuncIndex++)
{
IntPtr funcDescHandleToRelease = IntPtr.Zero;
try {
ComTypes.FUNCDESC funcDesc;
GetFuncDescForDescIndex(typeInfo, definedFuncIndex, out funcDesc, out funcDescHandleToRelease);
if ((funcDesc.wFuncFlags & (int)ComTypes.FUNCFLAGS.FUNCFLAG_FRESTRICTED) != 0)
{
// This function is not meant for the script user to use.
continue;
}
ComMethodDesc method = new ComMethodDesc(typeInfo, funcDesc);
string name = method.Name.ToUpper(System.Globalization.CultureInfo.InvariantCulture);
if ((funcDesc.invkind & ComTypes.INVOKEKIND.INVOKE_PROPERTYPUT) != 0)
{
puts.Add(name, method);
// for the special dispId == 0, we need to store
// the method descriptor for the Do(SetItem) binder.
if (method.DispId == ComDispIds.DISPID_VALUE && setItem == null)
{
setItem = method;
}
continue;
}
if ((funcDesc.invkind & ComTypes.INVOKEKIND.INVOKE_PROPERTYPUTREF) != 0)
{
putrefs.Add(name, method);
// for the special dispId == 0, we need to store
// the method descriptor for the Do(SetItem) binder.
if (method.DispId == ComDispIds.DISPID_VALUE && setItem == null)
{
setItem = method;
}
continue;
}
if (funcDesc.memid == ComDispIds.DISPID_NEWENUM)
{
funcs.Add("GETENUMERATOR", method);
continue;
}
funcs.Add(name, method);
// for the special dispId == 0, we need to store the method descriptor
// for the Do(GetItem) binder.
if (funcDesc.memid == ComDispIds.DISPID_VALUE)
{
getItem = method;
}
} finally {
if (funcDescHandleToRelease != IntPtr.Zero)
{
typeInfo.ReleaseFuncDesc(funcDescHandleToRelease);
}
}
}
lock (_CacheComTypeDesc) {
ComTypeDesc cachedTypeDesc;
if (_CacheComTypeDesc.TryGetValue(typeAttr.guid, out cachedTypeDesc))
{
_comTypeDesc = cachedTypeDesc;
}
else
{
_comTypeDesc = typeDesc;
_CacheComTypeDesc.Add(typeAttr.guid, _comTypeDesc);
}
_comTypeDesc.Funcs = funcs;
_comTypeDesc.Puts = puts;
_comTypeDesc.PutRefs = putrefs;
_comTypeDesc.EnsureGetItem(getItem);
_comTypeDesc.EnsureSetItem(setItem);
}
}
private void EnsureScanDefinedEvents()
{
// _comTypeDesc.Events is null if we have not yet attempted
// to scan the object for events.
if (_comTypeDesc?.Events != null)
{
return;
}
// check type info in the type descriptions cache
ComTypes.ITypeInfo typeInfo = ComRuntimeHelpers.GetITypeInfoFromIDispatch(_dispatchObject, true);
if (typeInfo == null)
{
_comTypeDesc = ComTypeDesc.CreateEmptyTypeDesc();
return;
}
ComTypes.TYPEATTR typeAttr = ComRuntimeHelpers.GetTypeAttrForTypeInfo(typeInfo);
if (_comTypeDesc == null)
{
lock (_CacheComTypeDesc) {
if (_CacheComTypeDesc.TryGetValue(typeAttr.guid, out _comTypeDesc) &&
_comTypeDesc.Events != null)
{
return;
}
}
}
ComTypeDesc typeDesc = ComTypeDesc.FromITypeInfo(typeInfo, typeAttr);
ComTypes.ITypeInfo classTypeInfo = null;
Dictionary <string, ComEventDesc> events = null;
var cpc = RuntimeCallableWrapper as ComTypes.IConnectionPointContainer;
if (cpc == null)
{
// No ICPC - this object does not support events
events = ComTypeDesc.EmptyEvents;
}
else if ((classTypeInfo = GetCoClassTypeInfo(this.RuntimeCallableWrapper, typeInfo)) == null)
{
// no class info found - this object may support events
// but we could not discover those
events = ComTypeDesc.EmptyEvents;
}
else
{
events = new Dictionary <string, ComEventDesc>();
ComTypes.TYPEATTR classTypeAttr = ComRuntimeHelpers.GetTypeAttrForTypeInfo(classTypeInfo);
for (int i = 0; i < classTypeAttr.cImplTypes; i++)
{
int hRefType;
classTypeInfo.GetRefTypeOfImplType(i, out hRefType);
ComTypes.ITypeInfo interfaceTypeInfo;
classTypeInfo.GetRefTypeInfo(hRefType, out interfaceTypeInfo);
ComTypes.IMPLTYPEFLAGS flags;
classTypeInfo.GetImplTypeFlags(i, out flags);
if ((flags & ComTypes.IMPLTYPEFLAGS.IMPLTYPEFLAG_FSOURCE) != 0)
{
ScanSourceInterface(interfaceTypeInfo, ref events);
}
}
if (events.Count == 0)
{
events = ComTypeDesc.EmptyEvents;
}
}
lock (_CacheComTypeDesc) {
ComTypeDesc cachedTypeDesc;
if (_CacheComTypeDesc.TryGetValue(typeAttr.guid, out cachedTypeDesc))
{
_comTypeDesc = cachedTypeDesc;
}
else
{
_comTypeDesc = typeDesc;
_CacheComTypeDesc.Add(typeAttr.guid, _comTypeDesc);
}
_comTypeDesc.Events = events;
}
}
