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// 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_IDENTIFIER_EXPRESSION_H_
#define SRC_AST_IDENTIFIER_EXPRESSION_H_
#include <string>
#include "src/ast/expression.h"
#include "src/ast/intrinsic.h"
namespace tint {
namespace ast {
/// An identifier expression
class IdentifierExpression : public Expression {
public:
/// Constructor
/// @param name the name
explicit IdentifierExpression(const std::string& name);
/// Constructor
/// @param source the source
/// @param name the name
IdentifierExpression(const Source& source, const std::string& name);
/// Move constructor
IdentifierExpression(IdentifierExpression&&);
~IdentifierExpression() override;
/// @returns the name part of the identifier
std::string name() const { return name_; }
/// Sets the intrinsic for this identifier
/// @param i the intrinsic to set
void set_intrinsic(Intrinsic i) { intrinsic_ = i; }
/// @returns the intrinsic this identifier represents
Intrinsic intrinsic() const { return intrinsic_; }
/// @returns true if this identifier is for an intrinsic
bool IsIntrinsic() const { return intrinsic_ != Intrinsic::kNone; }
/// @returns true if this is an identifier expression
bool IsIdentifier() const override;
/// @returns true if the node is valid
bool IsValid() const override;
/// Writes a representation of the node to the output stream
/// @param out the stream to write to
/// @param indent number of spaces to indent the node when writing
void to_str(std::ostream& out, size_t indent) const override;
private:
IdentifierExpression(const IdentifierExpression&) = delete;
Intrinsic intrinsic_ = Intrinsic::kNone;
std::string name_;
};
} // namespace ast
} // namespace tint
#endif // SRC_AST_IDENTIFIER_EXPRESSION_H_