50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
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/** A switch generator that tries to factor out most of the redundancy between
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* switch blocks, generating manually a switch-like template */
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#pragma once
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#include "SwitchStatement.hpp"
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#include <map>
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class FactoredSwitchCompiler: public AbstractSwitchCompiler {
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public:
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#ifdef STATS
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struct Stats {
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Stats(): generated_count(0), refer_count(0) {}
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int generated_count, refer_count;
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};
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const Stats& get_stats() const { return stats; }
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#endif
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FactoredSwitchCompiler(int indent=0);
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private:
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typedef std::string FactorJumpPoint;
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typedef std::map<SwitchStatement::SwitchCaseContent, FactorJumpPoint>
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JumpPointMap;
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typedef std::vector<SwitchStatement::SwitchCase>::const_iterator
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case_iterator_t;
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private:
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virtual void to_stream(std::ostream& os, const SwitchStatement& sw);
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FactorJumpPoint get_jump_point(JumpPointMap& jump_map,
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const SwitchStatement::SwitchCaseContent& sw_case);
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void gen_jump_points_code(std::ostream& os,
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const JumpPointMap& jump_map);
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void gen_binsearch_tree(
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std::ostream& os,
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JumpPointMap& jump_map,
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const std::string& sw_var,
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const case_iterator_t& begin,
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const case_iterator_t& end);
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size_t cur_label_id;
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#ifdef STATS
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Stats stats;
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#endif//STATS
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};
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