mirror of
https://github.com/polserver/polserver
synced 2026-08-13 08:23:08 -04:00
36d8603666
a ?: b Evaluates to a if a is true (not: false, 0, undefined, etc) Otherwise evaluates to b Short-circuit evaluation
50 lines
807 B
C++
50 lines
807 B
C++
/** @file
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*
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* @par History
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* - 2020/04/24 Syzygy: Moved here from parser.h
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*/
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#ifndef H_EXPRESSION_H
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#define H_EXPRESSION_H
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#include <queue>
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#include <stack>
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#include <vector>
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namespace Pol
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{
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namespace Bscript
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{
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class Token;
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class Expression
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{
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public:
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~Expression();
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void consume_tokens( Expression& expr );
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void optimize();
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void replace_elvis();
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int get_num_tokens( int idx ) const;
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void dump_tokens() const;
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typedef std::vector<Token*> Tokens;
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Tokens tokens;
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public:
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std::stack<Token*> TX;
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std::queue<Token*> CA;
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private:
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void optimize_binary_operations();
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void optimize_unary_operations();
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void optimize_assignments();
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bool optimize_token( int i );
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void remove_non_emitting_tokens();
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};
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} // namespace Bscript
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} // namespace Pol
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#endif // H_EXPRESSION_H
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