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// Copyright 2023 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_TINT_LANG_WGSL_SEM_ACCESSOR_EXPRESSION_H_
#define SRC_TINT_LANG_WGSL_SEM_ACCESSOR_EXPRESSION_H_
#include <vector>
#include "src/tint/lang/wgsl/ast/index_accessor_expression.h"
#include "src/tint/lang/wgsl/sem/value_expression.h"
namespace tint::sem {
/// AccessorExpression is the base class for all semantic information for an ast::AccessorExpression
/// node.
class AccessorExpression : public Castable<AccessorExpression, ValueExpression> {
public:
/// Destructor
~AccessorExpression() override;
/// @returns the AST node
const ast::AccessorExpression* Declaration() const {
return static_cast<const ast::AccessorExpression*>(declaration_);
}
/// @returns the object expression that is being indexed
ValueExpression const* Object() const { return object_; }
protected:
/// Constructor
/// @param declaration the AST node
/// @param type the resolved type of the expression
/// @param stage the earliest evaluation stage for the expression
/// @param object the object expression that is being indexed
/// @param statement the statement that owns this expression
/// @param constant the constant value of the expression. May be null
/// @param has_side_effects whether this expression may have side effects
/// @param root_ident the (optional) root identifier for this expression
AccessorExpression(const ast::AccessorExpression* declaration,
const type::Type* type,
EvaluationStage stage,
const ValueExpression* object,
const Statement* statement,
const constant::Value* constant,
bool has_side_effects,
const Variable* root_ident = nullptr);
private:
ValueExpression const* const object_;
};
} // namespace tint::sem
#endif // SRC_TINT_LANG_WGSL_SEM_ACCESSOR_EXPRESSION_H_