sequence.h

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#pragma once
 
#include <memory>
 
#include "sdfg/control_flow/interstate_edge.h"
#include "sdfg/structured_control_flow/control_flow_node.h"
 
namespace sdfg {
 
class StructuredSDFG;
 
namespace builder {
class StructuredSDFGBuilder;
}
 
namespace structured_control_flow {
 
class While;
class StructuredLoop;
class Sequence;

class Sequence : public ControlFlowNode {
    friend class sdfg::builder::StructuredSDFGBuilder;
 
    friend class sdfg::StructuredSDFG;
 
    friend class sdfg::structured_control_flow::While;
    friend class sdfg::structured_control_flow::StructuredLoop;
 
private:
    std::vector<std::unique_ptr<ControlFlowNode>> children_;
 
    Sequence(size_t element_id, const DebugInfo& debug_info, ControlFlowNode* parent);
 
    static constexpr size_t REQUIRED_ELEMENT_IDS = 1;
 
public:
    Sequence(const Sequence& node) = delete;
    Sequence& operator=(const Sequence&) = delete;
 
    ElementType type_id() const override {
        return ElementType::Sequence;
    }
 
    static bool classof(const Element& element) {
        return element.type_id() == ElementType::Sequence;
    }
 
    bool accept(visitor::ActualStructuredSDFGVisitor& visitor) override;
 
    void validate(const Function& function) const override;

    size_t size() const;

    const ControlFlowNode& at(size_t i) const;

    ControlFlowNode& at(size_t i);

    int index(const ControlFlowNode& child) const;

    void replace(const symbolic::Expression old_expression, const symbolic::Expression new_expression) override;
    void replace(const symbolic::ExpressionMapping& replacements) override;
};
 
} // namespace structured_control_flow
} // namespace sdfg