src/ast/vector.h

// Copyright 2020 The Tint Authors.
//
// 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 SRC_AST_VECTOR_H_
#define SRC_AST_VECTOR_H_

#include <string>

#include "src/ast/type.h"

namespace tint {
namespace ast {

/// A vector type.
class Vector : public Castable<Vector, Type> {
 public:
  /// Constructor
  /// @param pid the identifier of the program that owns this node
  /// @param src the source of this node
  /// @param subtype the declared type of the vector components. May be null
  ///        for vector constructors, where the element type will be inferred
  ///        from the constructor arguments
  /// @param width the number of elements in the vector
  Vector(ProgramID pid, Source const& src, const Type* subtype, uint32_t width);
  /// Move constructor
  Vector(Vector&&);
  ~Vector() override;

  /// @param symbols the program's symbol table
  /// @returns the name for this type that closely resembles how it would be
  /// declared in WGSL.
  std::string FriendlyName(const SymbolTable& symbols) const override;

  /// Clones this type and all transitive types using the `CloneContext` `ctx`.
  /// @param ctx the clone context
  /// @return the newly cloned type
  const Vector* Clone(CloneContext* ctx) const override;

  /// The declared type of the vector components. May be null for vector
  /// constructors, where the element type will be inferred from the constructor
  /// arguments
  const Type* const type;

  /// The number of elements in the vector
  const uint32_t width;
};

}  // namespace ast
}  // namespace tint

#endif  // SRC_AST_VECTOR_H_