Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(3726)

Unified Diff: base/win/scoped_variant.h

Issue 1446363003: Deleted OS_WIN and all Windows specific files from base. (Closed) Base URL: https://github.com/domokit/mojo.git@base_tests
Patch Set: Created 5 years, 1 month ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « base/win/scoped_select_object.h ('k') | base/win/scoped_variant.cc » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: base/win/scoped_variant.h
diff --git a/base/win/scoped_variant.h b/base/win/scoped_variant.h
deleted file mode 100644
index 322fcf71e5574725ed6d887be4e5c49605bdc6b1..0000000000000000000000000000000000000000
--- a/base/win/scoped_variant.h
+++ /dev/null
@@ -1,164 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef BASE_WIN_SCOPED_VARIANT_H_
-#define BASE_WIN_SCOPED_VARIANT_H_
-
-#include <windows.h>
-#include <oleauto.h>
-
-#include "base/base_export.h"
-#include "base/basictypes.h"
-
-namespace base {
-namespace win {
-
-// Scoped VARIANT class for automatically freeing a COM VARIANT at the
-// end of a scope. Additionally provides a few functions to make the
-// encapsulated VARIANT easier to use.
-// Instead of inheriting from VARIANT, we take the containment approach
-// in order to have more control over the usage of the variant and guard
-// against memory leaks.
-class BASE_EXPORT ScopedVariant {
- public:
- // Declaration of a global variant variable that's always VT_EMPTY
- static const VARIANT kEmptyVariant;
-
- // Default constructor.
- ScopedVariant() {
- // This is equivalent to what VariantInit does, but less code.
- var_.vt = VT_EMPTY;
- }
-
- // Constructor to create a new VT_BSTR VARIANT.
- // NOTE: Do not pass a BSTR to this constructor expecting ownership to
- // be transferred
- explicit ScopedVariant(const wchar_t* str);
-
- // Creates a new VT_BSTR variant of a specified length.
- ScopedVariant(const wchar_t* str, UINT length);
-
- // Creates a new integral type variant and assigns the value to
- // VARIANT.lVal (32 bit sized field).
- explicit ScopedVariant(int value, VARTYPE vt = VT_I4);
-
- // Creates a new double-precision type variant. |vt| must be either VT_R8
- // or VT_DATE.
- explicit ScopedVariant(double value, VARTYPE vt = VT_R8);
-
- // VT_DISPATCH
- explicit ScopedVariant(IDispatch* dispatch);
-
- // VT_UNKNOWN
- explicit ScopedVariant(IUnknown* unknown);
-
- // SAFEARRAY
- explicit ScopedVariant(SAFEARRAY* safearray);
-
- // Copies the variant.
- explicit ScopedVariant(const VARIANT& var);
-
- ~ScopedVariant();
-
- inline VARTYPE type() const {
- return var_.vt;
- }
-
- // Give ScopedVariant ownership over an already allocated VARIANT.
- void Reset(const VARIANT& var = kEmptyVariant);
-
- // Releases ownership of the VARIANT to the caller.
- VARIANT Release();
-
- // Swap two ScopedVariant's.
- void Swap(ScopedVariant& var);
-
- // Returns a copy of the variant.
- VARIANT Copy() const;
-
- // The return value is 0 if the variants are equal, 1 if this object is
- // greater than |var|, -1 if it is smaller.
- int Compare(const VARIANT& var, bool ignore_case = false) const;
-
- // Retrieves the pointer address.
- // Used to receive a VARIANT as an out argument (and take ownership).
- // The function DCHECKs on the current value being empty/null.
- // Usage: GetVariant(var.receive());
- VARIANT* Receive();
-
- void Set(const wchar_t* str);
-
- // Setters for simple types.
- void Set(int8 i8);
- void Set(uint8 ui8);
- void Set(int16 i16);
- void Set(uint16 ui16);
- void Set(int32 i32);
- void Set(uint32 ui32);
- void Set(int64 i64);
- void Set(uint64 ui64);
- void Set(float r32);
- void Set(double r64);
- void Set(bool b);
-
- // Creates a copy of |var| and assigns as this instance's value.
- // Note that this is different from the Reset() method that's used to
- // free the current value and assume ownership.
- void Set(const VARIANT& var);
-
- // COM object setters
- void Set(IDispatch* disp);
- void Set(IUnknown* unk);
-
- // SAFEARRAY support
- void Set(SAFEARRAY* array);
-
- // Special setter for DATE since DATE is a double and we already have
- // a setter for double.
- void SetDate(DATE date);
-
- // Allows const access to the contained variant without DCHECKs etc.
- // This support is necessary for the V_XYZ (e.g. V_BSTR) set of macros to
- // work properly but still doesn't allow modifications since we want control
- // over that.
- const VARIANT* ptr() const { return &var_; }
-
- // Like other scoped classes (e.g scoped_refptr, ScopedComPtr, ScopedBstr)
- // we support the assignment operator for the type we wrap.
- ScopedVariant& operator=(const VARIANT& var);
-
- // A hack to pass a pointer to the variant where the accepting
- // function treats the variant as an input-only, read-only value
- // but the function prototype requires a non const variant pointer.
- // There's no DCHECK or anything here. Callers must know what they're doing.
- VARIANT* AsInput() const {
- // The nature of this function is const, so we declare
- // it as such and cast away the constness here.
- return const_cast<VARIANT*>(&var_);
- }
-
- // Allows the ScopedVariant instance to be passed to functions either by value
- // or by const reference.
- operator const VARIANT&() const {
- return var_;
- }
-
- // Used as a debug check to see if we're leaking anything.
- static bool IsLeakableVarType(VARTYPE vt);
-
- protected:
- VARIANT var_;
-
- private:
- // Comparison operators for ScopedVariant are not supported at this point.
- // Use the Compare method instead.
- bool operator==(const ScopedVariant& var) const;
- bool operator!=(const ScopedVariant& var) const;
- DISALLOW_COPY_AND_ASSIGN(ScopedVariant);
-};
-
-} // namespace win
-} // namespace base
-
-#endif // BASE_WIN_SCOPED_VARIANT_H_
« no previous file with comments | « base/win/scoped_select_object.h ('k') | base/win/scoped_variant.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698