private DynamicMetaObject BindComInvoke(DynamicMetaObject[] args, ComMethodDesc method, CallInfo callInfo, bool[] isByRef)
{
return(new ComInvokeBinder(
callInfo,
args,
isByRef,
IDispatchRestriction(),
Expression.Constant(method),
Expression.Property(
Helpers.Convert(Expression, typeof(IDispatchComObject)),
typeof(IDispatchComObject).GetProperty("DispatchObject")
),
method
).Invoke());
}
internal bool TryGetPropertySetter(string name, out ComMethodDesc method, Type limitType, bool holdsNull)
{
EnsureScanDefinedMethods();
if (ComBinderHelpers.PreferPut(limitType, holdsNull))
{
return(_comTypeDesc.TryGetPut(name, out method) ||
_comTypeDesc.TryGetPutRef(name, out method));
}
else
{
return(_comTypeDesc.TryGetPutRef(name, out method) ||
_comTypeDesc.TryGetPut(name, out method));
}
}
private bool SlowTryGetSetItem(out ComMethodDesc value)
{
EnsureScanDefinedMethods();
ComMethodDesc methodDesc = _comTypeDesc.SetItem;
// Without type information, we really don't know whether or not we have a property setter.
if (methodDesc == null)
{
string name = "[PROPERTYPUT, DISPID(0)]";
_comTypeDesc.EnsureSetItem(new ComMethodDesc(name, ComDispIds.DISPID_VALUE, ComTypes.INVOKEKIND.INVOKE_PROPERTYPUT));
methodDesc = _comTypeDesc.SetItem;
}
value = methodDesc;
return(true);
}
private DynamicMetaObject BindComInvoke(ComMethodDesc method, DynamicMetaObject[] indexes, CallInfo callInfo, bool[] isByRef)
{
var callable = Expression;
var dispCall = Helpers.Convert(callable, typeof(DispCallable));
return(new ComInvokeBinder(
callInfo,
indexes,
isByRef,
DispCallableRestrictions(),
Expression.Constant(method),
Expression.Property(
dispCall,
typeof(DispCallable).GetProperty("DispatchObject")
),
method
).Invoke());
}
internal bool TryGetMemberMethodExplicit(string name, out ComMethodDesc method)
{
EnsureScanDefinedMethods();
int hresult = GetIDsOfNames(_dispatchObject, name, out int dispId);
if (hresult == ComHresults.S_OK)
{
ComMethodDesc cmd = new ComMethodDesc(name, dispId, ComTypes.INVOKEKIND.INVOKE_FUNC);
_comTypeDesc.AddFunc(name, cmd);
method = cmd;
return(true);
}
if (hresult == ComHresults.DISP_E_UNKNOWNNAME)
{
method = null;
return(false);
}
throw Error.CouldNotGetDispId(name, String.Format(CultureInfo.InvariantCulture, "0x{0:X})", hresult));
}
internal bool TryGetPropertySetterExplicit(string name, out ComMethodDesc method, Type limitType, bool holdsNull)
{
EnsureScanDefinedMethods();
int dispId;
int hresult = GetIDsOfNames(_dispatchObject, name, out dispId);
if (hresult == ComHresults.S_OK)
{
// we do not know whether we have put or putref here
// and we will not guess and pretend we found both.
ComMethodDesc put = new ComMethodDesc(name, dispId, ComTypes.INVOKEKIND.INVOKE_PROPERTYPUT);
_comTypeDesc.AddPut(name, put);
ComMethodDesc putref = new ComMethodDesc(name, dispId, ComTypes.INVOKEKIND.INVOKE_PROPERTYPUTREF);
_comTypeDesc.AddPutRef(name, putref);
if (ComBinderHelpers.PreferPut(limitType, holdsNull))
{
method = put;
}
else
{
method = putref;
}
return(true);
}
else if (hresult == ComHresults.DISP_E_UNKNOWNNAME)
{
method = null;
return(false);
}
else
{
throw Error.CouldNotGetDispId(name, String.Format(CultureInfo.InvariantCulture, "0x{0:X})", hresult));
}
}
internal bool TryGetFunc(string name, out ComMethodDesc method) {
name = name.ToUpper(System.Globalization.CultureInfo.InvariantCulture);
if (_funcs.ContainsKey(name)) {
method = _funcs[name] as ComMethodDesc;
return true;
}
method = null;
return false;
}
internal void EnsureSetItem(ComMethodDesc candidate) {
Interlocked.CompareExchange(ref _setItem, candidate, null);
}
internal void AddPutRef(string name, ComMethodDesc method) {
name = name.ToUpper(System.Globalization.CultureInfo.InvariantCulture);
lock (_putRefs) {
_putRefs[name] = method;
}
}
public static DispCallable CreateDispCallable(IDispatchComObject dispatch, ComMethodDesc method) {
return new DispCallable(dispatch, method.Name, method.DispId);
}
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);
}
}
internal bool TryGetMemberMethod(string name, out ComMethodDesc method)
{
EnsureScanDefinedMethods();
return(_comTypeDesc.TryGetFunc(name, out method));
}
internal void EnsureSetItem(ComMethodDesc candidate)
{
Interlocked.CompareExchange(ref _setItem, candidate, null);
}
public static DispCallable CreateDispCallable(IDispatchComObject dispatch, ComMethodDesc method)
{
return(new DispCallable(dispatch, method.Name, method.DispId));
}