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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_INL_H_
#define ART_RUNTIME_MIRROR_STRING_INL_H_
#include "string.h"
#include "android-base/stringprintf.h"
#include "class-inl.h"
#include "common_throws.h"
#include "dex/utf.h"
#include "runtime_globals.h"
namespace art {
namespace mirror {
inline uint32_t String::ClassSize(PointerSize pointer_size) {
#ifdef USE_D8_DESUGAR
// Two lambdas in CharSequence:
// lambda$chars$0$CharSequence
// lambda$codePoints$1$CharSequence
// which were virtual functions in standalone desugar, becomes
// direct functions with D8 desugaring.
uint32_t vtable_entries = Object::kVTableLength + 54;
#else
uint32_t vtable_entries = Object::kVTableLength + 56;
#endif
return Class::ComputeClassSize(true, vtable_entries, 0, 0, 0, 1, 2, pointer_size);
}
inline uint16_t String::CharAt(int32_t index) {
int32_t count = GetLength();
if (UNLIKELY((index < 0) || (index >= count))) {
ThrowStringIndexOutOfBoundsException(index, count);
return 0;
}
if (IsCompressed()) {
return GetValueCompressed()[index];
} else {
return GetValue()[index];
}
}
template <typename MemoryType>
int32_t String::FastIndexOf(MemoryType* chars, int32_t ch, int32_t start) {
const MemoryType* p = chars + start;
const MemoryType* end = chars + GetLength();
while (p < end) {
if (*p++ == ch) {
return (p - 1) - chars;
}
}
return -1;
}
inline int32_t String::GetHashCode() {
int32_t result = GetField32(OFFSET_OF_OBJECT_MEMBER(String, hash_code_));
if (UNLIKELY(result == 0)) {
result = ComputeHashCode();
}
if (kIsDebugBuild) {
if (IsCompressed()) {
DCHECK(result != 0 || ComputeUtf16Hash(GetValueCompressed(), GetLength()) == 0)
<< ToModifiedUtf8() << " " << result;
} else {
DCHECK(result != 0 || ComputeUtf16Hash(GetValue(), GetLength()) == 0)
<< ToModifiedUtf8() << " " << result;
}
}
return result;
}
inline int32_t String::GetUtfLength() {
if (IsCompressed()) {
return GetLength();
} else {
return CountUtf8Bytes(GetValue(), GetLength());
}
}
template<typename MemoryType>
inline bool String::AllASCII(const MemoryType* chars, const int length) {
static_assert(std::is_unsigned<MemoryType>::value, "Expecting unsigned MemoryType");
for (int i = 0; i < length; ++i) {
if (!IsASCII(chars[i])) {
return false;
}
}
return true;
}
inline bool String::DexFileStringAllASCII(const char* chars, const int length) {
// For strings from the dex file we just need to check that
// the terminating character is at the right position.
DCHECK_EQ(AllASCII(reinterpret_cast<const uint8_t*>(chars), length), chars[length] == 0);
return chars[length] == 0;
}
} // namespace mirror
} // namespace art
#endif // ART_RUNTIME_MIRROR_STRING_INL_H_
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