File size: 1,987 Bytes
d1be154 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 | #ifndef OT_TIMER_ENDPOINT_HPP_
#define OT_TIMER_ENDPOINT_HPP_
#include <ot/headerdef.hpp>
#include <ot/traits.hpp>
namespace ot {
// Forward declaration
class Test;
class PrimaryOutput;
// ------------------------------------------------------------------------------------------------
// Class: Endpoint
// A primary output port
// A data input pin of a sequential cell
// A pin that has an output delay specified.
class Endpoint {
friend class Timer;
friend struct Path;
public:
Endpoint(Split, Tran, Test&);
Endpoint(Split, Tran, PrimaryOutput&);
float slack() const;
inline Split split() const;
inline Tran transition() const;
inline const Test* test() const;
inline const PrimaryOutput* primary_output() const;
inline bool operator < (const Endpoint&) const;
inline bool operator > (const Endpoint&) const;
inline bool operator == (const Endpoint&) const;
private:
Split _el;
Tran _rf;
std::variant<Test*, PrimaryOutput*> _handle;
};
// Function: split
inline Split Endpoint::split() const {
return _el;
}
// Function: transition
inline Tran Endpoint::transition() const {
return _rf;
}
// Function: test
inline const Test* Endpoint::test() const {
if(auto ptr = std::get_if<Test*>(&_handle)) {
return *ptr;
}
else return nullptr;
}
// Function: primary_output
inline const PrimaryOutput* Endpoint::primary_output() const {
if(auto ptr = std::get_if<PrimaryOutput*>(&_handle)){
return *ptr;
}
else return nullptr;
}
// Operator <
inline bool Endpoint::operator < (const Endpoint& rhs) const {
return slack() < rhs.slack();
}
// Operator >
inline bool Endpoint::operator > (const Endpoint& rhs) const {
return slack() > rhs.slack();
}
// Operator ==
inline bool Endpoint::operator == (const Endpoint& rhs) const {
return slack() == rhs.slack();
}
}; // end of namespace ot. -----------------------------------------------------------------------
#endif
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