src/ast/int_literal_expression.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_INT_LITERAL_EXPRESSION_H_
#define SRC_AST_INT_LITERAL_EXPRESSION_H_

#include "src/ast/literal_expression.h"

namespace tint {
namespace ast {

/// An integer literal. This could be either signed or unsigned.
class IntLiteralExpression
    : public Castable<IntLiteralExpression, LiteralExpression> {
 public:
  ~IntLiteralExpression() override;

  /// @returns the literal value as a u32
  virtual uint32_t ValueAsU32() const = 0;

  /// @returns the literal value as an i32
  int32_t ValueAsI32() const { return static_cast<int32_t>(ValueAsU32()); }

 protected:
  /// Constructor
  /// @param pid the identifier of the program that owns this node
  /// @param src the source of this node
  IntLiteralExpression(ProgramID pid, const Source& src);
};  // namespace ast

}  // namespace ast
}  // namespace tint

#endif  // SRC_AST_INT_LITERAL_EXPRESSION_H_