chromium/third_party/dawn/src/tint/lang/core/type/type.h

// Copyright 2022 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
//    contributors may be used to endorse or promote products derived from
//    this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef SRC_TINT_LANG_CORE_TYPE_TYPE_H_
#define SRC_TINT_LANG_CORE_TYPE_TYPE_H_

#include <functional>
#include <string>

#include "src/tint/lang/core/type/clone_context.h"
#include "src/tint/lang/core/type/unique_node.h"
#include "src/tint/utils/containers/enum_set.h"
#include "src/tint/utils/containers/vector.h"

// Forward declarations
namespace tint {
class ProgramBuilder;
class SymbolTable;
}  // namespace tint
namespace tint::core::type {
class Type;
}  // namespace tint::core::type

namespace tint::core::type {

/// Flag is an enumerator of type flag bits, used by Flags.
enum Flag {};

/// An alias to tint::EnumSet<Flag>
Flags;

/// TypeAndCount holds a type and count
struct TypeAndCount {};

/// Equality operator.
/// @param lhs the LHS TypeAndCount
/// @param rhs the RHS TypeAndCount
/// @returns true if the two TypeAndCounts have the same type and count
inline bool operator==(TypeAndCount lhs, TypeAndCount rhs) {}

/// Base class for a type in the system
class Type : public Castable<Type, UniqueNode> {};

}  // namespace tint::core::type

namespace std {

/// std::hash specialization for tint::core::type::Type
template <>
struct hash<tint::core::type::Type> {};

/// std::equal_to specialization for tint::core::type::Type
template <>
struct equal_to<tint::core::type::Type> {};

}  // namespace std

#endif  // SRC_TINT_LANG_CORE_TYPE_TYPE_H_