60 lines
1.5 KiB
C++
Executable File
60 lines
1.5 KiB
C++
Executable File
/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
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* Use of this file is governed by the BSD 3-clause license that
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* can be found in the LICENSE.txt file in the project root.
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*/
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#include "atn/ATNConfigSet.h"
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#include "atn/SemanticContext.h"
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#include "atn/ATNConfig.h"
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#include "misc/MurmurHash.h"
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#include "dfa/DFAState.h"
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using namespace antlr4::dfa;
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using namespace antlr4::atn;
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std::string DFAState::PredPrediction::toString() const {
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return std::string("(") + pred->toString() + ", " + std::to_string(alt) + ")";
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}
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std::set<size_t> DFAState::getAltSet() const {
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std::set<size_t> alts;
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if (configs != nullptr) {
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for (size_t i = 0; i < configs->size(); i++) {
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alts.insert(configs->get(i)->alt);
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}
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}
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return alts;
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}
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size_t DFAState::hashCode() const {
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return configs != nullptr ? configs->hashCode() : 0;
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}
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bool DFAState::equals(const DFAState &other) const {
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if (this == std::addressof(other)) {
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return true;
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}
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return configs == other.configs ||
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(configs != nullptr && other.configs != nullptr && *configs == *other.configs);
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}
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std::string DFAState::toString() const {
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std::stringstream ss;
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ss << stateNumber;
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if (configs) {
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ss << ":" << configs->toString();
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}
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if (isAcceptState) {
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ss << "=>";
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if (!predicates.empty()) {
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for (size_t i = 0; i < predicates.size(); i++) {
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ss << predicates[i].toString();
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}
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} else {
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ss << prediction;
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}
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}
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return ss.str();
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}
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