| Line | Branch | Decision | Exec | Source |
|---|---|---|---|---|
| 1 | // Copyright 2019-2022 Cambridge Quantum Computing | |||
| 2 | // | |||
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); | |||
| 4 | // you may not use this file except in compliance with the License. | |||
| 5 | // You may obtain a copy of the License at | |||
| 6 | // | |||
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 | |||
| 8 | // | |||
| 9 | // Unless required by applicable law or agreed to in writing, software | |||
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, | |||
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |||
| 12 | // See the License for the specific language governing permissions and | |||
| 13 | // limitations under the License. | |||
| 14 | ||||
| 15 | #pragma once | |||
| 16 | ||||
| 17 | #include <memory> | |||
| 18 | ||||
| 19 | #include "Predicates.hpp" | |||
| 20 | ||||
| 21 | namespace tket { | |||
| 22 | ||||
| 23 | class CompilationUnit; | |||
| 24 | typedef std::map<std::type_index, PredicatePtr> | |||
| 25 | PredicatePtrMap; // this is map so i can look up by type later | |||
| 26 | typedef std::pair<const std::type_index, PredicatePtr> TypePredicatePair; | |||
| 27 | typedef std::map<std::type_index, std::pair<PredicatePtr, bool>> PredicateCache; | |||
| 28 | ||||
| 29 | /* The CompilationUnit class encapsulates a Circuit and a PredicatePtrMap of the | |||
| 30 | Predicates that Circuit is intended to satisfy by the end of its run through | |||
| 31 | the compiler. It holdes a cache of Predicates | |||
| 32 | which are currently satisfied. */ | |||
| 33 | ||||
| 34 | class CompilationUnit { | |||
| 35 | public: | |||
| 36 | explicit CompilationUnit(const Circuit& circ); | |||
| 37 | CompilationUnit(const Circuit& circ, const PredicatePtrMap& preds); | |||
| 38 | CompilationUnit(const Circuit& circ, const std::vector<PredicatePtr>& preds); | |||
| 39 | ||||
| 40 | bool calc_predicate(const Predicate& pred) const; | |||
| 41 | bool check_all_predicates() | |||
| 42 | const; // returns false if any of the preds are unsatisfied | |||
| 43 | ||||
| 44 | /* getters to inspect the data members */ | |||
| 45 | ✗ | const Circuit& get_circ_ref() const { return circ_; } | ||
| 46 | const PredicateCache& get_cache_ref() const { return cache_; } | |||
| 47 | const unit_bimap_t& get_initial_map_ref() const { return maps->initial; } | |||
| 48 | const unit_bimap_t& get_final_map_ref() const { return maps->final; } | |||
| 49 | std::string to_string() const; | |||
| 50 | ||||
| 51 | friend class Circuit; | |||
| 52 | friend class BasePass; | |||
| 53 | friend class StandardPass; | |||
| 54 | ||||
| 55 | static TypePredicatePair make_type_pair(const PredicatePtr& ptr); | |||
| 56 | ||||
| 57 | private: | |||
| 58 | void empty_cache() const; | |||
| 59 | void initialize_cache() const; | |||
| 60 | void initialize_maps(); | |||
| 61 | Circuit circ_; // modified continuously | |||
| 62 | PredicatePtrMap | |||
| 63 | target_preds; // these are the predicates you WANT your circuit to | |||
| 64 | // satisfy by the end of your Compiler Passes | |||
| 65 | mutable PredicateCache cache_; // updated continuously | |||
| 66 | ||||
| 67 | // Maps from original logical qubits to corresponding current qubits | |||
| 68 | std::shared_ptr<unit_bimaps_t> maps; | |||
| 69 | }; | |||
| 70 | ||||
| 71 | } // namespace tket | |||
| 72 |