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68 lines
1.7 KiB
68 lines
1.7 KiB
4 months ago
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/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_RUNTIME_STRING_BUILDER_APPEND_H_
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#define ART_RUNTIME_STRING_BUILDER_APPEND_H_
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#include <stddef.h>
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#include <stdint.h>
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#include "base/bit_utils.h"
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#include "base/locks.h"
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#include "obj_ptr.h"
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namespace art {
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class Thread;
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namespace mirror {
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class String;
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} // namespace mirror
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class StringBuilderAppend {
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public:
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enum class Argument : uint8_t {
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kEnd = 0u,
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kObject,
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kStringBuilder,
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kString,
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kCharArray,
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kBoolean,
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kChar,
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kInt,
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kLong,
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kFloat,
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kDouble,
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kLast = kDouble
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};
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static constexpr size_t kBitsPerArg =
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MinimumBitsToStore(static_cast<size_t>(Argument::kLast));
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static constexpr size_t kMaxArgs = BitSizeOf<uint32_t>() / kBitsPerArg;
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static_assert(kMaxArgs * kBitsPerArg == BitSizeOf<uint32_t>(), "Expecting no extra bits.");
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static constexpr uint32_t kArgMask = MaxInt<uint32_t>(kBitsPerArg);
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static ObjPtr<mirror::String> AppendF(uint32_t format, const uint32_t* args, Thread* self)
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REQUIRES_SHARED(Locks::mutator_lock_);
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private:
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class Builder;
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};
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} // namespace art
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#endif // ART_RUNTIME_STRING_BUILDER_APPEND_H_
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