// Copyright 2021 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_SEM_CALL_H_
#define SRC_TINT_SEM_CALL_H_

#include <vector>

#include "src/tint/ast/call_expression.h"
#include "src/tint/sem/builtin.h"
#include "src/tint/sem/expression.h"
#include "src/tint/utils/vector.h"

namespace tint::sem {

/// Call is the base class for semantic nodes that hold semantic information for
/// ast::CallExpression nodes.
class Call final : public Castable<Call, Expression> {
  public:
    /// Constructor
    /// @param declaration the AST node
    /// @param target the call target
    /// @param stage the earliest evaluation stage for the expression
    /// @param arguments the call arguments
    /// @param statement the statement that owns this expression
    /// @param constant the constant value of this expression
    /// @param has_side_effects whether this expression may have side effects
    Call(const ast::CallExpression* declaration,
         const CallTarget* target,
         EvaluationStage stage,
         utils::VectorRef<const sem::Expression*> arguments,
         const Statement* statement,
         const Constant* constant,
         bool has_side_effects);

    /// Destructor
    ~Call() override;

    /// @return the target of the call
    const CallTarget* Target() const { return target_; }

    /// @return the call arguments
    const auto& Arguments() const { return arguments_; }

    /// @returns the AST node
    const ast::CallExpression* Declaration() const {
        return static_cast<const ast::CallExpression*>(declaration_);
    }

  private:
    CallTarget const* const target_;
    utils::Vector<const sem::Expression*, 8> arguments_;
};

}  // namespace tint::sem

#endif  // SRC_TINT_SEM_CALL_H_