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[RUNTIME] ShapeTuple Container (apache#8200)
* Add ShapeTuple. * Update NDArray. * Documents. * Lint. * Lint. * Lint. * Address comment. * Address comment. * Address comment. * Lint. * Lint.
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| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you 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. | ||
| */ | ||
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| /*! | ||
| * \file tvm/runtime/container/shape_tuple.h | ||
| * \brief Runtime ShapeTuple container types. | ||
| */ | ||
| #ifndef TVM_RUNTIME_CONTAINER_SHAPE_TUPLE_H_ | ||
| #define TVM_RUNTIME_CONTAINER_SHAPE_TUPLE_H_ | ||
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| #include <utility> | ||
| #include <vector> | ||
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| #include "./base.h" | ||
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| namespace tvm { | ||
| namespace runtime { | ||
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| /*! \brief An object representing a shape tuple. */ | ||
| class ShapeTupleObj : public Object { | ||
| public: | ||
| /*! \brief The type of shape index element. */ | ||
| using index_type = int64_t; | ||
| /*! \brief The pointer to shape tuple data. */ | ||
| index_type* data; | ||
| /*! \brief The size of the shape tuple object. */ | ||
| uint64_t size; | ||
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| static constexpr const uint32_t _type_index = runtime::TypeIndex::kRuntimeShapeTuple; | ||
| static constexpr const char* _type_key = "runtime.ShapeTuple"; | ||
| TVM_DECLARE_FINAL_OBJECT_INFO(ShapeTupleObj, Object); | ||
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| private: | ||
| /*! \brief ShapeTuple object which is moved from std::vector container. */ | ||
| class FromStd; | ||
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| friend class ShapeTuple; | ||
| }; | ||
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| /*! \brief An object representing shape tuple moved from std::vector. */ | ||
| class ShapeTupleObj::FromStd : public ShapeTupleObj { | ||
| public: | ||
| /*! \brief The type of shape index element. */ | ||
| using index_type = ShapeTupleObj::index_type; | ||
| /*! | ||
| * \brief Construct a new FromStd object | ||
| * | ||
| * \param other The moved/copied std::vector object | ||
| * | ||
| * \note If user passes const reference, it will trigger copy. If it's rvalue, | ||
| * it will be moved into other. | ||
| */ | ||
| explicit FromStd(std::vector<index_type> other) : data_container{other} {} | ||
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| private: | ||
| /*! \brief Container that holds the memory. */ | ||
| std::vector<index_type> data_container; | ||
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| friend class ShapeTuple; | ||
| }; | ||
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| /*! | ||
| * \brief Reference to shape tuple objects. | ||
| */ | ||
| class ShapeTuple : public ObjectRef { | ||
| public: | ||
| /*! \brief The type of shape index element. */ | ||
| using index_type = ShapeTupleObj::index_type; | ||
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| /*! | ||
| * \brief Construct an empty shape tuple. | ||
| */ | ||
| ShapeTuple() : ShapeTuple(std::vector<index_type>()) {} | ||
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| /*! | ||
| * \brief Constructor from iterator | ||
| * \param begin begin of iterator | ||
| * \param end end of iterator | ||
| * \tparam IterType The type of iterator | ||
| */ | ||
| template <typename IterType> | ||
| ShapeTuple(IterType begin, IterType end) : ShapeTuple(std::vector<index_type>(begin, end)) {} | ||
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| /*! | ||
| * \brief constructor from initializer list | ||
| * \param shape The initializer list | ||
| */ | ||
| ShapeTuple(std::initializer_list<index_type> shape) : ShapeTuple(shape.begin(), shape.end()) {} | ||
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| /*! | ||
| * \brief Construct a new ShapeTuple object | ||
| * | ||
| * \param shape The moved/copied std::vector object | ||
| * | ||
| * \note If user passes const reference, it will trigger copy. If it's rvalue, | ||
| * it will be moved into other. | ||
| */ | ||
| ShapeTuple(std::vector<index_type> shape); // NOLINT(*) | ||
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| /*! | ||
| * \brief Return the data pointer | ||
| * | ||
| * \return const index_type* data pointer | ||
| */ | ||
| const index_type* data() const { return get()->data; } | ||
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| /*! | ||
| * \brief Return the size of the shape tuple | ||
| * | ||
| * \return size_t shape tuple size | ||
| */ | ||
| size_t size() const { return get()->size; } | ||
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| /*! | ||
| * \brief Immutably read i-th element from the shape tuple. | ||
| * \param idx The index | ||
| * \return the i-th element. | ||
| */ | ||
| index_type operator[](size_t idx) const { | ||
| ICHECK(0 <= idx && idx < this->size()) | ||
| << "IndexError: indexing " << idx << " on an array of size " << this->size(); | ||
| return this->data()[idx]; | ||
| } | ||
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| /*! | ||
| * \brief Immutably read i-th element from the shape tuple. | ||
| * \param idx The index | ||
| * \return the i-th element. | ||
| */ | ||
| index_type at(size_t idx) const { return this->operator[](idx); } | ||
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| /*! \return Whether shape tuple is empty */ | ||
| bool empty() const { return size() == 0; } | ||
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| /*! \return The first element of the shape tuple */ | ||
| index_type front() const { return this->at(0); } | ||
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| /*! \return The last element of the shape tuple */ | ||
| index_type back() const { return this->at(this->size() - 1); } | ||
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| /*! \return begin iterator */ | ||
| const index_type* begin() const { return get()->data; } | ||
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| /*! \return end iterator */ | ||
| const index_type* end() const { return (get()->data + size()); } | ||
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| TVM_DEFINE_NOTNULLABLE_OBJECT_REF_METHODS(ShapeTuple, ObjectRef, ShapeTupleObj); | ||
| }; | ||
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| inline ShapeTuple::ShapeTuple(std::vector<index_type> shape) { | ||
| auto ptr = make_object<ShapeTupleObj::FromStd>(std::move(shape)); | ||
| ptr->size = ptr->data_container.size(); | ||
| ptr->data = ptr->data_container.data(); | ||
| data_ = std::move(ptr); | ||
| } | ||
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| } // namespace runtime | ||
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| // expose the functions to the root namespace. | ||
| using runtime::ShapeTuple; | ||
| using runtime::ShapeTupleObj; | ||
| } // namespace tvm | ||
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| #endif // TVM_RUNTIME_CONTAINER_SHAPE_TUPLE_H_ |
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