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/*
* Copyright (C) 2011 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 ART_RUNTIME_MIRROR_STRING_H_
#define ART_RUNTIME_MIRROR_STRING_H_
#include "class.h"
#include "gtest/gtest.h"
namespace art {
struct StringClassOffsets;
struct StringOffsets;
class StringPiece;
namespace mirror {
// C++ mirror of java.lang.String
class MANAGED String : public Object {
public:
static MemberOffset CountOffset() {
return OFFSET_OF_OBJECT_MEMBER(String, count_);
}
static MemberOffset ValueOffset() {
return OFFSET_OF_OBJECT_MEMBER(String, array_);
}
static MemberOffset OffsetOffset() {
return OFFSET_OF_OBJECT_MEMBER(String, offset_);
}
const CharArray* GetCharArray() const;
CharArray* GetCharArray();
int32_t GetOffset() const {
int32_t result = GetField32(OffsetOffset(), false);
DCHECK_LE(0, result);
return result;
}
int32_t GetLength() const;
int32_t GetHashCode() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void ComputeHashCode() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
int32_t GetUtfLength() const;
uint16_t CharAt(int32_t index) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
String* Intern() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
static String* AllocFromUtf16(Thread* self,
int32_t utf16_length,
const uint16_t* utf16_data_in,
int32_t hash_code = 0)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
static String* AllocFromModifiedUtf8(Thread* self, const char* utf)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
static String* AllocFromModifiedUtf8(Thread* self, int32_t utf16_length,
const char* utf8_data_in)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
static String* Alloc(Thread* self, Class* java_lang_String, int32_t utf16_length)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
static String* Alloc(Thread* self, Class* java_lang_String, CharArray* array)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
bool Equals(const char* modified_utf8) const
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// TODO: do we need this overload? give it a more intention-revealing name.
bool Equals(const StringPiece& modified_utf8) const
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
bool Equals(const String* that) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Compare UTF-16 code point values not in a locale-sensitive manner
int Compare(int32_t utf16_length, const char* utf8_data_in);
// TODO: do we need this overload? give it a more intention-revealing name.
bool Equals(const uint16_t* that_chars, int32_t that_offset,
int32_t that_length) const
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Create a modified UTF-8 encoded std::string from a java/lang/String object.
std::string ToModifiedUtf8() const;
int32_t FastIndexOf(int32_t ch, int32_t start) const;
int32_t CompareTo(String* other) const;
static Class* GetJavaLangString() {
DCHECK(java_lang_String_ != NULL);
return java_lang_String_;
}
static void SetClass(Class* java_lang_String);
static void ResetClass();
private:
void SetHashCode(int32_t new_hash_code) {
DCHECK_EQ(0u, GetField32(OFFSET_OF_OBJECT_MEMBER(String, hash_code_), false));
SetField32(OFFSET_OF_OBJECT_MEMBER(String, hash_code_), new_hash_code, false);
}
void SetCount(int32_t new_count) {
DCHECK_LE(0, new_count);
SetField32(OFFSET_OF_OBJECT_MEMBER(String, count_), new_count, false);
}
void SetOffset(int32_t new_offset) {
DCHECK_LE(0, new_offset);
DCHECK_GE(GetLength(), new_offset);
SetField32(OFFSET_OF_OBJECT_MEMBER(String, offset_), new_offset, false);
}
void SetArray(CharArray* new_array) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
// Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses".
CharArray* array_;
int32_t count_;
uint32_t hash_code_;
int32_t offset_;
static Class* java_lang_String_;
friend struct art::StringOffsets; // for verifying offset information
FRIEND_TEST(ObjectTest, StringLength); // for SetOffset and SetCount
DISALLOW_IMPLICIT_CONSTRUCTORS(String);
};
class MANAGED StringClass : public Class {
private:
CharArray* ASCII_;
Object* CASE_INSENSITIVE_ORDER_;
uint32_t REPLACEMENT_CHAR_;
int64_t serialVersionUID_;
friend struct art::StringClassOffsets; // for verifying offset information
DISALLOW_IMPLICIT_CONSTRUCTORS(StringClass);
};
} // namespace mirror
} // namespace art
#endif // ART_RUNTIME_MIRROR_STRING_H_
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