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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_MEMBER_ACCESSOR_EXPRESSION_H_
#define SRC_AST_MEMBER_ACCESSOR_EXPRESSION_H_
#include <memory>
#include <string>
#include <utility>
#include "src/ast/expression.h"
#include "src/ast/identifier_expression.h"
#include "src/ast/literal.h"
namespace tint {
namespace ast {
/// A member accessor expression
class MemberAccessorExpression
: public Castable<MemberAccessorExpression, Expression> {
public:
/// Constructor
/// @param structure the structure
/// @param member the member
MemberAccessorExpression(Expression* structure, IdentifierExpression* member);
/// Constructor
/// @param source the member accessor expression source
/// @param structure the structure
/// @param member the member
MemberAccessorExpression(const Source& source,
Expression* structure,
IdentifierExpression* member);
/// Move constructor
MemberAccessorExpression(MemberAccessorExpression&&);
~MemberAccessorExpression() override;
/// @returns the structure
Expression* structure() const { return struct_; }
/// @returns the member expression
IdentifierExpression* member() const { return member_; }
/// Clones this node and all transitive child nodes using the `CloneContext`
/// `ctx`.
/// @note Semantic information such as resolved expression type and intrinsic
/// information is not cloned.
/// @param ctx the clone context
/// @return the newly cloned node
MemberAccessorExpression* Clone(CloneContext* ctx) 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:
MemberAccessorExpression(const MemberAccessorExpression&) = delete;
Expression* struct_ = nullptr;
IdentifierExpression* member_ = nullptr;
};
} // namespace ast
} // namespace tint
#endif // SRC_AST_MEMBER_ACCESSOR_EXPRESSION_H_