e6d77c593d
Many of our basic data structures are trivially movable using memcpy() even if they are not trivially constructable, destructable or copyable. It's worth taking advantage of this *ahem* trait. Adding trivial_move_trait to String16 reduces appt running time on frameworks/base/core/res by 40%! Change-Id: I630a1a027e2d0ded96856e4ca042ea82906289fe
244 lines
7.4 KiB
C++
244 lines
7.4 KiB
C++
/*
|
|
* Copyright (C) 2005 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef ANDROID_STRING16_H
|
|
#define ANDROID_STRING16_H
|
|
|
|
#include <utils/Errors.h>
|
|
#include <utils/SharedBuffer.h>
|
|
#include <utils/Unicode.h>
|
|
#include <utils/TypeHelpers.h>
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
extern "C" {
|
|
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
namespace android {
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
class String8;
|
|
class TextOutput;
|
|
|
|
//! This is a string holding UTF-16 characters.
|
|
class String16
|
|
{
|
|
public:
|
|
String16();
|
|
String16(const String16& o);
|
|
String16(const String16& o,
|
|
size_t len,
|
|
size_t begin=0);
|
|
explicit String16(const char16_t* o);
|
|
explicit String16(const char16_t* o, size_t len);
|
|
explicit String16(const String8& o);
|
|
explicit String16(const char* o);
|
|
explicit String16(const char* o, size_t len);
|
|
|
|
~String16();
|
|
|
|
inline const char16_t* string() const;
|
|
inline size_t size() const;
|
|
|
|
inline const SharedBuffer* sharedBuffer() const;
|
|
|
|
void setTo(const String16& other);
|
|
status_t setTo(const char16_t* other);
|
|
status_t setTo(const char16_t* other, size_t len);
|
|
status_t setTo(const String16& other,
|
|
size_t len,
|
|
size_t begin=0);
|
|
|
|
status_t append(const String16& other);
|
|
status_t append(const char16_t* other, size_t len);
|
|
|
|
inline String16& operator=(const String16& other);
|
|
|
|
inline String16& operator+=(const String16& other);
|
|
inline String16 operator+(const String16& other) const;
|
|
|
|
status_t insert(size_t pos, const char16_t* chrs);
|
|
status_t insert(size_t pos,
|
|
const char16_t* chrs, size_t len);
|
|
|
|
ssize_t findFirst(char16_t c) const;
|
|
ssize_t findLast(char16_t c) const;
|
|
|
|
bool startsWith(const String16& prefix) const;
|
|
bool startsWith(const char16_t* prefix) const;
|
|
|
|
status_t makeLower();
|
|
|
|
status_t replaceAll(char16_t replaceThis,
|
|
char16_t withThis);
|
|
|
|
status_t remove(size_t len, size_t begin=0);
|
|
|
|
inline int compare(const String16& other) const;
|
|
|
|
inline bool operator<(const String16& other) const;
|
|
inline bool operator<=(const String16& other) const;
|
|
inline bool operator==(const String16& other) const;
|
|
inline bool operator!=(const String16& other) const;
|
|
inline bool operator>=(const String16& other) const;
|
|
inline bool operator>(const String16& other) const;
|
|
|
|
inline bool operator<(const char16_t* other) const;
|
|
inline bool operator<=(const char16_t* other) const;
|
|
inline bool operator==(const char16_t* other) const;
|
|
inline bool operator!=(const char16_t* other) const;
|
|
inline bool operator>=(const char16_t* other) const;
|
|
inline bool operator>(const char16_t* other) const;
|
|
|
|
inline operator const char16_t*() const;
|
|
|
|
private:
|
|
const char16_t* mString;
|
|
};
|
|
|
|
// String16 can be trivially moved using memcpy() because moving does not
|
|
// require any change to the underlying SharedBuffer contents or reference count.
|
|
ANDROID_TRIVIAL_MOVE_TRAIT(String16)
|
|
|
|
TextOutput& operator<<(TextOutput& to, const String16& val);
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// No user servicable parts below.
|
|
|
|
inline int compare_type(const String16& lhs, const String16& rhs)
|
|
{
|
|
return lhs.compare(rhs);
|
|
}
|
|
|
|
inline int strictly_order_type(const String16& lhs, const String16& rhs)
|
|
{
|
|
return compare_type(lhs, rhs) < 0;
|
|
}
|
|
|
|
inline const char16_t* String16::string() const
|
|
{
|
|
return mString;
|
|
}
|
|
|
|
inline size_t String16::size() const
|
|
{
|
|
return SharedBuffer::sizeFromData(mString)/sizeof(char16_t)-1;
|
|
}
|
|
|
|
inline const SharedBuffer* String16::sharedBuffer() const
|
|
{
|
|
return SharedBuffer::bufferFromData(mString);
|
|
}
|
|
|
|
inline String16& String16::operator=(const String16& other)
|
|
{
|
|
setTo(other);
|
|
return *this;
|
|
}
|
|
|
|
inline String16& String16::operator+=(const String16& other)
|
|
{
|
|
append(other);
|
|
return *this;
|
|
}
|
|
|
|
inline String16 String16::operator+(const String16& other) const
|
|
{
|
|
String16 tmp(*this);
|
|
tmp += other;
|
|
return tmp;
|
|
}
|
|
|
|
inline int String16::compare(const String16& other) const
|
|
{
|
|
return strzcmp16(mString, size(), other.mString, other.size());
|
|
}
|
|
|
|
inline bool String16::operator<(const String16& other) const
|
|
{
|
|
return strzcmp16(mString, size(), other.mString, other.size()) < 0;
|
|
}
|
|
|
|
inline bool String16::operator<=(const String16& other) const
|
|
{
|
|
return strzcmp16(mString, size(), other.mString, other.size()) <= 0;
|
|
}
|
|
|
|
inline bool String16::operator==(const String16& other) const
|
|
{
|
|
return strzcmp16(mString, size(), other.mString, other.size()) == 0;
|
|
}
|
|
|
|
inline bool String16::operator!=(const String16& other) const
|
|
{
|
|
return strzcmp16(mString, size(), other.mString, other.size()) != 0;
|
|
}
|
|
|
|
inline bool String16::operator>=(const String16& other) const
|
|
{
|
|
return strzcmp16(mString, size(), other.mString, other.size()) >= 0;
|
|
}
|
|
|
|
inline bool String16::operator>(const String16& other) const
|
|
{
|
|
return strzcmp16(mString, size(), other.mString, other.size()) > 0;
|
|
}
|
|
|
|
inline bool String16::operator<(const char16_t* other) const
|
|
{
|
|
return strcmp16(mString, other) < 0;
|
|
}
|
|
|
|
inline bool String16::operator<=(const char16_t* other) const
|
|
{
|
|
return strcmp16(mString, other) <= 0;
|
|
}
|
|
|
|
inline bool String16::operator==(const char16_t* other) const
|
|
{
|
|
return strcmp16(mString, other) == 0;
|
|
}
|
|
|
|
inline bool String16::operator!=(const char16_t* other) const
|
|
{
|
|
return strcmp16(mString, other) != 0;
|
|
}
|
|
|
|
inline bool String16::operator>=(const char16_t* other) const
|
|
{
|
|
return strcmp16(mString, other) >= 0;
|
|
}
|
|
|
|
inline bool String16::operator>(const char16_t* other) const
|
|
{
|
|
return strcmp16(mString, other) > 0;
|
|
}
|
|
|
|
inline String16::operator const char16_t*() const
|
|
{
|
|
return mString;
|
|
}
|
|
|
|
}; // namespace android
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
#endif // ANDROID_STRING16_H
|