15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2010 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/win/scoped_variant.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace base { 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace win { 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Global, const instance of an empty variant. 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const VARIANT ScopedVariant::kEmptyVariant = { VT_EMPTY }; 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedVariant::~ScopedVariant() { 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) COMPILE_ASSERT(sizeof(ScopedVariant) == sizeof(VARIANT), ScopedVariantSize); 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ::VariantClear(&var_); 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedVariant::ScopedVariant(const wchar_t* str) { 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_EMPTY; 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Set(str); 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedVariant::ScopedVariant(const wchar_t* str, UINT length) { 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_BSTR; 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.bstrVal = ::SysAllocStringLen(str, length); 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedVariant::ScopedVariant(int value, VARTYPE vt) { 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = vt; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.lVal = value; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedVariant::ScopedVariant(double value, VARTYPE vt) { 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(vt == VT_R8 || vt == VT_DATE); 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = vt; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.dblVal = value; 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedVariant::ScopedVariant(IDispatch* dispatch) { 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_EMPTY; 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Set(dispatch); 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedVariant::ScopedVariant(IUnknown* unknown) { 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_EMPTY; 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Set(unknown); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedVariant::ScopedVariant(SAFEARRAY* safearray) { 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_EMPTY; 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Set(safearray); 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedVariant::ScopedVariant(const VARIANT& var) { 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_EMPTY; 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Set(var); 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Reset(const VARIANT& var) { 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (&var != &var_) { 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ::VariantClear(&var_); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_ = var; 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)VARIANT ScopedVariant::Release() { 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VARIANT var = var_; 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_EMPTY; 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return var; 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Swap(ScopedVariant& var) { 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VARIANT tmp = var_; 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_ = var.var_; 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var.var_ = tmp; 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)VARIANT* ScopedVariant::Receive() { 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "variant leak. type: " << var_.vt; 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return &var_; 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)VARIANT ScopedVariant::Copy() const { 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VARIANT ret = { VT_EMPTY }; 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ::VariantCopy(&ret, &var_); 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return ret; 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int ScopedVariant::Compare(const VARIANT& var, bool ignore_case) const { 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ULONG flags = ignore_case ? NORM_IGNORECASE : 0; 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) HRESULT hr = ::VarCmp(const_cast<VARIANT*>(&var_), const_cast<VARIANT*>(&var), 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LOCALE_USER_DEFAULT, flags); 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int ret = 0; 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switch (hr) { 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VARCMP_LT: 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ret = -1; 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VARCMP_GT: 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VARCMP_NULL: 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ret = 1; 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) default: 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Equal. 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return ret; 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(const wchar_t* str) { 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_BSTR; 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.bstrVal = ::SysAllocString(str); 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(int8 i8) { 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_I1; 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.cVal = i8; 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(uint8 ui8) { 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_UI1; 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.bVal = ui8; 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(int16 i16) { 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_I2; 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.iVal = i16; 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(uint16 ui16) { 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_UI2; 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.uiVal = ui16; 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(int32 i32) { 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_I4; 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.lVal = i32; 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(uint32 ui32) { 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_UI4; 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.ulVal = ui32; 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(int64 i64) { 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_I8; 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.llVal = i64; 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(uint64 ui64) { 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_UI8; 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.ullVal = ui64; 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(float r32) { 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_R4; 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.fltVal = r32; 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(double r64) { 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_R8; 1775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.dblVal = r64; 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::SetDate(DATE date) { 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_DATE; 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.date = date; 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(IDispatch* disp) { 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_DISPATCH; 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.pdispVal = disp; 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (disp) 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) disp->AddRef(); 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(bool b) { 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_BOOL; 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.boolVal = b ? VARIANT_TRUE : VARIANT_FALSE; 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(IUnknown* unk) { 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_UNKNOWN; 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.punkVal = unk; 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (unk) 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unk->AddRef(); 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(SAFEARRAY* array) { 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (SUCCEEDED(::SafeArrayGetVartype(array, &var_.vt))) { 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt |= VT_ARRAY; 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.parray = array; 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!array) << "Unable to determine safearray vartype"; 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_EMPTY; 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ScopedVariant::Set(const VARIANT& var) { 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!IsLeakableVarType(var_.vt)) << "leaking variant: " << var_.vt; 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (FAILED(::VariantCopy(&var_, &var))) { 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DLOG(ERROR) << "VariantCopy failed"; 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) var_.vt = VT_EMPTY; 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ScopedVariant& ScopedVariant::operator=(const VARIANT& var) { 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (&var != &var_) { 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) VariantClear(&var_); 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Set(var); 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return *this; 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool ScopedVariant::IsLeakableVarType(VARTYPE vt) { 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool leakable = false; 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) switch (vt & VT_TYPEMASK) { 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_BSTR: 2395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_DISPATCH: 2405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // we treat VT_VARIANT as leakable to err on the safe side. 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_VARIANT: 2425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_UNKNOWN: 2435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_SAFEARRAY: 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // very rarely used stuff (if ever): 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_VOID: 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_PTR: 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_CARRAY: 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_USERDEFINED: 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_LPSTR: 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_LPWSTR: 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_RECORD: 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_INT_PTR: 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_UINT_PTR: 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_FILETIME: 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_BLOB: 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_STREAM: 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_STORAGE: 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_STREAMED_OBJECT: 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_STORED_OBJECT: 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_BLOB_OBJECT: 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_VERSIONED_STREAM: 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) case VT_BSTR_BLOB: 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) leakable = true; 2655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!leakable && (vt & VT_ARRAY) != 0) { 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) leakable = true; 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return leakable; 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace win 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace base 277