80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
// Copyright 2020 The Tint Authors.
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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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#ifndef SRC_TINT_SEM_VECTOR_H_
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#define SRC_TINT_SEM_VECTOR_H_
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#include <string>
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#include "src/tint/sem/type.h"
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namespace tint::sem {
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/// A vector type.
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class Vector final : public Castable<Vector, Type> {
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public:
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/// Constructor
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/// @param subtype the vector element type
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/// @param size the number of elements in the vector
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Vector(Type const* subtype, uint32_t size);
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/// Move constructor
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Vector(Vector&&);
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~Vector() override;
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/// @returns a hash of the type.
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size_t Hash() const override;
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/// @param other the other type to compare against
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/// @returns true if the this type is equal to the given type
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bool Equals(const Type& other) const override;
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/// @returns the type of the vector elements
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const Type* type() const { return subtype_; }
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/// @param symbols the program's symbol table
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/// @returns the name for this type that closely resembles how it would be
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/// declared in WGSL.
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std::string FriendlyName(const SymbolTable& symbols) const override;
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/// @returns true if constructible as per
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/// https://gpuweb.github.io/gpuweb/wgsl/#constructible-types
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bool IsConstructible() const override;
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/// @returns the number of elements in the vector
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uint32_t Width() const { return width_; }
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/// @returns the size in bytes of the type. This may include tail padding.
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uint32_t Size() const override;
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/// @returns the alignment in bytes of the type. This may include tail
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/// padding.
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uint32_t Align() const override;
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/// @param width the width of the vector
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/// @returns the size in bytes of a vector of the given width.
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static uint32_t SizeOf(uint32_t width);
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/// @param width the width of the vector
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/// @returns the alignment in bytes of a vector of the given width.
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static uint32_t AlignOf(uint32_t width);
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private:
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Type const* const subtype_;
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const uint32_t width_;
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};
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} // namespace tint::sem
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#endif // SRC_TINT_SEM_VECTOR_H_
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